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Hamilton West Harbour Shoreline & Breakwater
Environmental Study Report
Prepared byDillon Consulting Limited
11-5710
April 17th, 2013
Class Environmental Assessment
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TABLE OF CONTENTS Page
EXECUTIVE SUMMARY ......................................................................................................... i
1.0 INTRODUCTION ...............................................................................................................1
2.0 BACKGROUND .................................................................................................................2
3.0 STUDY APPROACH ..........................................................................................................8
3.1. Evaluation Criteria ...............................................................................................................9
4.0 EXISTING CONDITIONS ................................................................................................10
4.1. Natural Environment ..........................................................................................................10
4.2. Public Access, Parks and Open Space ...............................................................................14
4.2.1. Public Access .........................................................................................................14
4.2.2. Parks and Open Space Areas .................................................................................15
4.3. Land Use/Technical ...........................................................................................................15
4.3.1. Municipal Infrastructure ........................................................................................15
4.3.2. Marine Facilities ....................................................................................................15
4.3.3. Shore Facilities and Water Levels .........................................................................16
4.3.4. On-Water Facilities ................................................................................................19
5.0 PROBLEM IDENTIFICATION (Class EA Phase 1) ........................................................20
6.0 PUBLIC CONSULTATION .............................................................................................21
6.1. Consultation for the Shoreline and Breakwater .................................................................21
6.1.1. Stakeholder Meetings.............................................................................................21
6.1.2. Public Information Centres ....................................................................................21
6.1.3. Communication ......................................................................................................22
6.2. Consultation for Hamilton West Harbour Waterfront Recreation Master Plan .…………23
6.3. First Nations Consultation .................................................................................................24
6.4. Comments Received ..........................................................................................................25
7.0 SHORELINE IMPROVEMENTS .....................................................................................45
7.1. Shoreline Alternative Solutions (Class EA Phase 2) .........................................................45
7.1.1. Shoreline Structure Alternative Solutions .............................................................45
7.1.2. Shoreline Flood Hazards Alternative Solutions .....................................................45
7.2. Shoreline Design Concepts ................................................................................................56
8.0 BREAKWATER IMPROVEMENTS ...............................................................................70
8.1. Breakwater Alternative Solutions (Class EA Phase 2) ......................................................70
8.1.1. Breakwater Alternative Solutions ..........................................................................70
8.1.2. Breakwater Evaluation and Preferred Solution......................................................71
8.2. Breakwater Alternative Design Concepts (Class EA Phase 3) ..........................................75
8.2.1. Coastal Assessment ................................................................................................75
8.2.2. Breakwater Design Alternatives ............................................................................77
8.2.3. Breakwater Layout Alternatives ............................................................................78
9.0 POTENTIAL EFFECTS AND PROPOSED MITIGATION ............................................86
9.1. Proposed Shoreline and Breakwater Improvement............................................................86
9.2. Potential Effects and Mitigation ........................................................................................92
10.0 FUTURE APPROVAL REQUIREMENTS ......................................................................97
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List of Tables
Table 3.1: Evaluation Criteria ....................................................................................................................... 9
Table 6.1: First Nations Consultation Activities ......................................................................................... 24
Table 6.2: Summary of Comments Received on the Proposed Breakwater and Shoreline Improvements 26
Table 7.1: Evaluation of Shoreline Structure Improvement Solutions ....................................................... 49
Table 7.2: Evaluation of Alternative Flood Hazard Improvement Solutions ............................................ 52
Table 7.3: Shoreline Characteristics and Proposed Improvements by Reach ............................................ 60
Table 8.1: Evaluation of Breakwater Types ................................................................................................ 73
Table 8.2: Evaluation of Breakwater Design .............................................................................................. 82
Table 8.3: Evaluation of Breakwater Layout .............................................................................................. 84
Table 9.1: Shoreline Cost Estimate by Reach ............................................................................................ 89
Table 9.2: Summary of Effects and Mitigation .......................................................................................... 94
List of Figures
Figure 2.1: Hamilton West Harbour Concept Plan ....................................................................................... 6
Figure 3.1: Municipal Class EA Process ..................................................................................................... 8
Figure 4.1: Existing Conditions ................................................................................................................. 11
Figure 4.2: Natural Environment ............................................................................................................... 12
Figure 4.3: Shoreline Conditions ............................................................................................................... 18
Figure 7.1: – Shoreline Reaches – Macassa Bay ...................................................................................... 56
Figure 8.1: Directional Distribution of Wave Energy and Wave Heights (Full year) ............................... 76
Figure 8.2: Exceedance of Wave Height and Period (Full year) ............................................................... 76
Figure 8.3: A-Frame Breakwater ............................................................................................................... 77
Figure 8.4: Concrete Pontoon Breakwater ................................................................................................. 77
Figure 8.5: Option 1 – North East Facing Entrance Breakwater Concept ................................................. 79
Figure 8.6: Option 2 – North West Facing Entrance Breakwater Concept ................................................ 80
List of Appendices
Appendix A Phase 1 Technical Report - Existing Conditions, Issues and Opportunities
Summary of Underwater Inspection
Appendix B Consultation Materials:
Stakeholder meeting notes
Notices
Display panels
Comments received
Appendix C Shoreline Cross Sections
Appendix D Wave Climate Assessment
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EXECUTIVE SUMMARY
The City of Hamilton has completed this Environmental Study Report to address two separate projects:
West Harbour Shoreline Improvements; and
West Harbour Breakwater Improvements.
These two projects, while separate, have been documented in the same report, as the technical work and
consultation were completed simultaneously.
Work on this project began in 2006 as part of the Hamilton West Harbour Waterfront Recreation Master
Plan (WHRMP), a follow-up to the Setting Sail planning process. The Hamilton West Harbour
Waterfront Recreation Master Plan concluded in April 2010 with a Harbour West Concept to enhance and
balance the recreational, ecological and marine functions of the west harbour.
As part of the development of the Recreation Master Plan, the City initiated the Municipal Class
Environmental Assessment process to address any infrastructure required to implement the Harbour West
Concept. It was identified that improvements to the breakwater were needed to adequately protect the
existing marina and any future expansion and that improvements to the shoreline were needed to address
structural issues and improve public safety as well as flood standards. Breakwater infrastructure is
considered a Schedule C project and shoreline improvements are considered a Schedule B project under
the Municipal Class EA.
Shoreline Improvements
Alternative solutions to address shoreline structural conditions were identified for those areas where
conditions were considered deficient included the repair of the existing shoreline or the replacement of
the existing shoreline. It was concluded that both alternatives presented opportunities to improve public
safety as well as aquatic habitat and that the decision should be based on site specific technical feasibility
and cost.
Alternative solutions to address flood hazards included raising the shoreline, raising the edge of the
shoreline, flood proofing buildings and providing an offshore breakwater for protection. The preferred
solution was to raise the crest of the replaced or repaired shoreline to 76 m as much as possible. Where
this was not possible, a combination of solutions could be put in place including incorporating a
secondary wall, flood-proofing existing buildings and locating new buildings above the flood hazard.
Design concepts were prepared for the shoreline on a reach by reach basis to address site specific
characteristics. Where possible, improvements to aquatic habitat have been incorporated.
Breakwater Improvements
Alternative solutions to address the need for additional protection at the marina included the repair of the
existing breakwater, a new floating breakwater or a new fixed breakwater. It was concluded that the
existing breakwater could not be upgraded to provide adequate wave reduction. When comparing the
remaining alternative solutions a floating breakwater was preferred as it offers sufficient protection with
minimal impact on fish habitat and water circulation, flexibility to relocation to accommodate changes at
the marina and at a moderate cost.
Alternative Design Concepts for the breakwater included types of floating breakwater designs (A-Frame
and Concrete Pontoon). It was concluded that the types of floating breakwaters have similar impacts and
both are appropriate for this location. It is recommended that the determination of floating breakwater
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type be based on the market response to minimum performance specifications set by the City of
Hamilton. Layout alternatives (north-east facing entrance and north-west facing entrance) were also
considered. It was concluded that the layout with a north-west facing entrance is slightly preferred as it
will best address the less frequent but larger waves from the east.
The proposed new floating breakwater would be constructed off-site and towed to its location.
Depending on the configuration of the marina at the time it is installed it may need to be anchored in a
temporary location closer to the shore to avoid excessive waves inside the breakwater. The cost for the
breakwater is expected to be approximately $4.5 million. The shoreline improvements would be
constructed in phases likely timed to coincide with changes or improvements to the on-shore facilities.
The approximate cost of the shoreline improvements is $11.4 million.
Potential Effects and Mitigation
Section 9 of this Environmental Study Report discusses the potential effects associated with construction
and operation of the proposed shoreline works and new floating breakwater. Overall impacts to the
natural environment are minimal and the shoreline improvements provide an opportunity to enhance fish
habitat. Impacts to the community involve temporary construction impacts which can be managed by
best practices.
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1.0 INTRODUCTION
Historically, public access to Hamilton Harbour has been limited. The City of Hamilton has gradually been
acquiring waterfront lands and as of 2000 is now the owner of Piers 3 to 8 in the west harbour. Over the
last 5-10 years the City has been undertaking the planning and engineering studies necessary to support this
vibrant waterfront area. This work has included:
Setting Sail (approved by Council in 2005, and approved after an appeal at the Ontario Municipal
Board in December 2012) – the West Harbour Secondary Plan which establishes a framework for
public improvement and private development aimed at enhancing the area as a community and
recreation destination.
West Hamilton Harbour Waterfront Recreation Master Plan (2010) – which establishes a
waterfront vision and defines the planning design guidelines to guide and shape development of
buildings and landscapes of the west harbour.
The Hamilton West Harbour Waterfront Recreation Master Plan
(WHRMP) develops a concept for the waterfront that balances
the recreational, ecological and marine function of the west
harbour. A key component of developing an appropriate concept
for this area is an understanding of the need for, and
incorporating appropriate supporting municipal infrastructure.
Improvements to the shoreline and breakwater infrastructure are
keys to the successful development of the west harbour.
Municipal infrastructure requires approval under the
Environmental Assessment Act (EA Act). The Municipal Class
Environmental Assessment (EA) (October 2000, as amended in
2007 & 2011) provides an approved approach for municipalities
to follow to plan infrastructure improvements to meet the
requirements of the EA process.
This Environmental Study Report (ESR) documents the Class EA
process undertaken for improvements to the shoreline and
breakwater infrastructure. These two projects, while separate,
have been documented in the same report, as the technical work and consultation were completed
simultaneously.
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2.0 BACKGROUND
The Hamilton West Harbour stretches from Bayfront Park in the west to Pier 7 in the east (see Figure 2.1).
The area has changed significantly over the years with much of the industry that inhabited the waterfront
now gone. While the Hamilton West Harbour has been an area cherished by the North End Neighbourhood
and the boating community for a long while, it is only since the establishment of Bayfront Park (1993),
Pier 4 Park (1992-1993) and the Waterfront Trail (2000), that this area has become much more of a
destination for other residents of Hamilton and the surrounding area.
Much of the Hamilton West Harbour area had been owned by the Hamilton Port Authority (HPA) until
2000 when it conveyed the bulk of Piers 1, 2, and 5-8 to the City.
Setting Sail
A planning exercise called the West Harbour Secondary Plan, or
Setting Sail as it is commonly known, was initiated by the City to
respond to the opportunities provided by ownership of the west
harbour lands. The Setting Sail Secondary Plan was approved by
Council in March 2005 and was approved after an appeal at the
Ontario Municipal Board in December 2012.
Setting Sail establishes a framework for public improvement and
private development aimed at enhancing the area as a community
and recreational destination. The plan has two primary purposes: to
guide detailed planning, zoning, and development decisions; and, to
identify the City’s priorities for publicly funded initiatives. Setting
Sail is a comprehensive plan for the west harbour, with an emphasis
on three areas where major change is appropriate and desirable.
These areas include the Waterfront; the area south of the CN rail
yard, called Barton-Tiffany; and the former industrial lands along
Ferguson Avenue, referred to as the Ferguson-Wellington Corridor.
The Setting Sail planning process was guided by eight core
principles which balance the aspirations of the city and local
community for the West Harbour and reflect and build on the City’s
Vision 2020 goals for creating a healthy and sustainable city. These
core principles also helped to guide the West Harbour Recreation
Master Plan.
The Setting Sail Secondary Plan confirms the west harbour area
should be used for waterfront recreation and marine activities.
A key outcome of the secondary planning process was the
recommendation that the City of Hamilton undertake a Waterfront
Recreation Master Plan for those lands designated “Marine
Recreational” including Bayfront Park and Pier 4 Park (see Figure
4.1).
West Hamilton Harbour Waterfront Recreation Master Plan
Eight Core Principles from Setting Sail:
1) Promote a healthy harbour
2) Strengthen existing neighbourhoods
3) Provide save, continuous public access along the water’s edge
4) Create a diverse, balanced and animated waterfront
5) Enhance physical and visual connections
6) Promote a balanced transportation network
7) Celebrate the City’s heritage
8) Promote excellence in design
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The City of Hamilton initiated the Hamilton West Harbour Waterfront Recreation Master Plan (referred to
as WHRMP) in the Spring of 2006. The focus of this study was to better understand the current and future
challenges in the west harbour waterfront area from Bayfront Park through Pier 7 and to consider ways to
meet these challenges.
A key goal for the Hamilton West Harbour Waterfront Recreation Master Plan was to achieve the
appropriate balance between the recreational, marine and ecological functions of the west harbour area. To
do this, the Master Plan addresses marina needs and boating facilities, fish habitat and terrestrial habitat
issues, active and passive recreational uses including the waterfront trail, public amenities, and services and
transportation improvements needed to accommodate waterfront improvements.
Adhering to the eight core principles from Setting Sail, and working towards the vision set out for the
waterfront, the following objectives for the Hamilton West Harbour Waterfront Recreation Master Plan
were outlined in the Setting Sail Secondary Plan (Section A.6.3.8.8.3):
i) accommodate and facilitate a range of recreational boating facilities;
ii) maximize public access to the water’s edge, balancing the operational needs of marine and boating
activities for safe and secure water access;
iii) minimize the size of paved areas for parking and storage;
iv) encourage sharing of facilities among boating organizations;
v) ensure safety and security for boaters, trail users and park visitors.
In June 2009 City Council added the following objectives:
Significantly increase public access to the waterfront;
Positive environmental approach, especially with respect to
shoreline and habitat;
A harbourfront precinct designed as a destination for all
Hamiltonians;
Financial viability;
Innovative and sustainable adaptive reuse of existing
elements;
Recognition of historical and cultural waterfront institutions;
and
Positive integration with the community in a local context.
The Master Plan was undertaken in the following key steps:
Identification of Opportunities and Challenges - This step
documented existing conditions and from that information,
developed an understanding of opportunities, challenges and
issues. Phase 1 Technical Report – Existing Conditions, Issues
and Opportunities (October 2006) included as Appendix A,
documents the technical data collected and opportunities identified.
Consideration of Alternative Waterfront Concepts - Based on the opportunities and challenges identified, a
basic framework and four long-term concepts for the waterfront were developed. The Basic Framework
identified key areas and improvements that were common to each of the alternatives including areas for
fish habitat improvement, an improved parks maintenance structure, the addition of park structures at
Bayfront Park, waterfront gateway treatments at Bayfront Park, the foot of James Street and the foot of
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MacNab Street, breakwater improvement, and maintaining and enhancing the existing open space. The
long-term concepts included different configurations and locations for the accommodation of the yacht
clubs, public marina and commercial uses.
The long-term concepts were compared using evaluation criteria that considered the natural environment,
socio-economic environment, technical considerations and cost. A preliminary preferred concept was
presented at a Public Information Centre on May 8, 2007. Generally the preferred waterfront concept
provided a transition from Pier 8 (active, mixed use) to more passive ecologically focused lands in the west.
The preliminary preferred concept included consolidation of the marina facilities into a single mooring
basin. This concept involved improvements to the breakwater to appropriately protect the shoreline and
marina facilities. Significant changes to the shoreline were also proposed including elevating the shoreline
to address potential flooding.
While there were elements of the preferred concept that were appealing, concern remained among
stakeholders regarding consolidation of the existing boating clubs. In the fall of 2007, the Hamilton
Waterfront Trust came forward with an alternate plan for the area developed in consultation with the
boating community. The Harbour West Concept Plan essentially leaves intact the shoreline and the boating
facilities/clubs. The need for improvements to the breakwater remained an important component of the
Harbour West Concept Plan. Shoreline improvements while smaller in scale were still required to address
deteriorating shoreline structures.
Discussions between the City and the Hamilton Waterfront Trust continued through 2008 and on January
12th, 2009 Council endorsed the Waterfront Trust plan as the plan to go forward. The following is text
from the January 12, 2009 Council meeting minutes:
a) That the General Manager of Public Works be authorized and directed to revise the Waterfront
Recreation Master Plan, based on the Hamilton Waterfront Trust Plan attached as Appendix “B” to
report PW09004, incorporating stakeholder comments and that the revised preferred plan include the
following principals:
i. That the long term vision for the west harbour include various Waterfront Recreation
Institutions within their separate, existing facilities;
ii. Utilize floating breakwaters within the main basin as flood mitigation;
iii. Maintain as much of the existing shoreline configuration as possible;
iv. Incorporate the use of wall structures or other measures as flood protection of buildings,
rather than filling to raise building elevations’ providing it is cost effective;
v. Greater reuse of existing buildings, where feasible and cost effective;
vi. Increased use of structured parking to reduce the amount of surface parking required
within the West Harbour Area;
vii. Apply up to the maximum amounts and types of commercial space outlined in Malone
Given Parsons West Harbour Waterfront Commercial Opportunity Study Report, dated
July 2008;
viii. Staging to reduce the impacts on leaseholders and in recognition of lease terms;
ix. Investigate options for relocation of the majority of summer and winter storage offsite to
maximize waterfront potential.
b) That the General Manager of Public Works complete the consultation process and report back to
committee.
c) That Pier 7 be included as denoted in schedule A within the boundaries of the West Harbour
Recreation Master Plan and that staff work with all stakeholders to determine the appropriate
amount of square footage for that space.
d) That Hamilton Waterfront Trust and staff work with all stakeholders to continue to work on the
final design plans which will be presented to committee at a later date.
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e) That staff be directed to initiate a lease renewal process for all Waterfront Stakeholders and report
back to Committee and Council before years end 2009.
f) That the item related to Recommendations from the Waterfront Revitalization Task Force re: West
Harbour Waterfront Recreation Master Plan be removed from the Public Works Committee
Outstanding Business List.
Preparation of the Master Plan Document - The City and Hamilton Waterfront Trust finalized the
waterfront concept and developed accompanying policies and guidelines for its implementation and
development which are included in the April 2010 Hamilton West Harbour Waterfront Recreation Master
Plan. The waterfront concept that is the basis for the work in this Environmental Study Report is shown on
Figure 2.1.
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Figure 2.1: Hamilton West Harbour Concept Plan
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Other Related Work
In addition to the West Harbour Secondary Plan: Setting Sail, and the West Harbour Recreation Master
Plan, the City has put significant effort into planning the West Harbour Waterfront. Studies to date have
included:
o West Harbour Transportation Master Plan (2005);
o Gartner Lee Phase I (2003) and II (2004) Fisheries Study;
o Stantec Environmental Review Hamilton West Harbour Planning Area (2003);
o Malone Given Parsons West Harbour Waterfront Commercial Opportunity Study (2008);
and
o North End Traffic Management Plan (October 2011).
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3.0 STUDY APPROACH
Municipal undertakings are subject to the Ontario Environmental Assessment Act. As the types of projects
undertaken by municipalities are often similar in nature, the Municipal Engineers Association developed a
decision making process for municipalities to follow to ensure that infrastructure projects meet the intent
and requirements of the Environmental Assessment Act. The Municipal Class Environmental Assessment
(October 2000, as amended in 2007 & 2011) is a process approved under the Environmental Assessment
Act. The Class EA approach to planning projects has been successfully carried out for over 20 years.
Provided municipalities follow this process their infrastructure projects are considered to have EA approval
and can proceed to implementation. Figure 3.1 shows the five phase Municipal Class EA process.
Figure 3.1: Municipal Class EA Process
Within the Municipal Class EA, projects are classified into one of four schedules:
Schedule A Projects that are common and typically have minimal environmental effects. This includes
emergency and maintenance activities. These projects are pre-approved.
Schedule A+ Projects are pre-approved however the public is to be advised prior to project
implementation.
Schedule B Generally includes improvements and minor expansions to existing facilities with some
potential for adverse environmental impacts. Phases 1 and 2 of the Class EA process need
to be completed.
Schedule C Generally includes new facilities and major expansions to existing facilities with potential
for adverse environmental impacts. Proponents must proceed through all phases of the
Class EA process.
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Breakwater infrastructure is considered a Schedule C project and shoreline improvements are considered a
Schedule B project under the Class EA. These two projects, while separate, have been documented in the
same report, as the technical work and consultation was completed simultaneously.
3.1. Evaluation Criteria
A key component of the Class EA process is the identification and evaluation of alternatives. Evaluation
criteria to compare alternatives were developed based on knowledge of the waterfront concept, the types of
infrastructure that might be required, and to meet EA requirements. The evaluation criteria consider all
aspects of the environment (i.e. socio-economic, natural, and cultural) as well as technical considerations
and cost. The evaluation criteria groups and criteria are presented in Table 3.1.
The evaluation criteria were presented to the public for review at a Public Information Centre held on June
23, 2009.
Table 3.1: Evaluation Criteria
Criteria Group Evaluation Criteria
Natural Environment Opportunity to naturalize the shoreline and
improve fish habitat.
Potential for impact to aquatic or terrestrial
habitat during construction.
Potential for water quality improvement.
Impact on Erosion.
Socio-Economic and Cultural
Environment
Potential for impacts on waterfront recreation
facilities/activities and commercial
businesses/activities.
Opportunity for enhancement of waterfront
recreational or commercial facilities/ amenities.
Potential for impact on public safety.
Potential to impact cultural heritage
(archaeological resources or built heritage and
cultural landscapes) and/or treaty rights.
Impact on navigability.
Technical Structural integrity.
Level of protection provided (for shoreline
and/or marina).
Design life/maintenance requirement.
Potential for soil/sediment contamination issues.
Flexibility.
Potential impacts on utilities.
Constructability.
Cost Relative cost (focus on capital cost as property,
operational and maintenance costs are not
significantly different).
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4.0 EXISTING CONDITIONS
Existing conditions were documented as part of the WHRMP in the Phase 1 Technical Report – Existing
Conditions, Issues and Opportunities (October 2006) which is included as Appendix A. This section
provides a summary of the existing conditions included in that document. Figure 4.1 summarizes the
existing site conditions.
4.1. Natural Environment
Existing natural environment features are shown in Figure 4.2 and discussed below.
Fisheries Resources
The fish community within and adjacent to the west harbour study area is currently the only portion of the
Harbour that meets the RAP fish community biodiversity goals (V. Cairns, DFO-Emeritus, personal
communication) and is characterized by a relatively high proportion of native species and predators,
including largemouth bass, black crappie, yellow perch and sunfish. Previous shoreline restoration works
that have been completed in the Bayfront Park area were found to have greater piscivore biomass and a
greater number of native and total species, compared to areas where no shoreline restoration took place
(Faulkenham and Theysmeyer, 2001). Public access to the area is good and fishing opportunities are
excellent, with much potential for a high quality urban fishery (R. Kiriluk, DFO, personal communication).
However, there are concerns on the part of Fisheries and Oceans Canada (DFO) that fisheries objectives
may be at cross purposes if the urban fishery results in suppression of top predator populations. In
particular, nesting largemouth bass are susceptible to capture, and resulting reproductive failure, in the
shallow areas in the western portion of the west harbour study area.
Between Bayfront Park and Pier 8, existing boat clubs and docking facilities are present. As a result, much
of the shoreline in this area consists of vertical walls with limited shoreline diversity. Vertical shoreline
walls are comprised of many materials including sheet piles, cement block, poured concrete, and wood
(GLL, 2003). The vertical walls would be limiting to fish species in terms of productivity, but may provide
some shelter in areas not exposed to wave action. Macrophytes (aquatic plants) were historically surveyed
along several transects in the west harbour boat basins. Up to seven species of macrophytes were found,
and growth was found to be dense along most transects (Theysmeyer and Cleveland, 2001). Aquatic plant
control measures are necessary in some parts of the marinas and at the boat launch in Strachan Channel to
maintain safe navigation. Removal of some plant material likely maintains a mix of open and thickly
vegetated areas that is beneficial to maintaining habitat for a variety of species and life stages of fish.
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Figure 4.1: Existing Conditions
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Figure 4.2: Natural Environment
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Fisheries resources and, in particular, fish habitat in the west harbour study area are subject to conservation,
protection and management at federal, provincial and municipal levels. Key non-governmental
stakeholders, such as the Royal Botanical Gardens, are also involved in these efforts through cooperation
with the agencies at all levels.
In addition to conservation, the Ministry of Natural Resources (MNR) is also charged with managing and
promoting sustainable use of resources, including fish. In the case of the west harbour study area, MNR has
identified the area, along with other sites within the Harbour and watershed, for primarily shore-based
recreational fishing as part of its Urban Fishery initiative. MNR hopes to promote fishing by local residents
and visitors, taking advantage of proximity of urban residential areas, shoreline accessibility, the diversity
of fish species and the relatively high productivity, while also conserving high standing stocks of top
predator fish species (R. Kiriluk, DFO, personal communication). Options include enhancement of access
and amenities for shore-based anglers in the vicinity of the Marine Discovery Centre, which could reduce
fishing pressure in shallow areas of Bayfront and Pier 4 Parks where spawning and nesting fish,
particularly largemouth bass, are vulnerable to incidental out-of-season capture. Enhancement of access in
the eastern portion of the study area may be coupled with shoreline plantings, establishment of emergent
littoral vegetation or construction of in-water barriers/cover that wards anglers away from key nesting
areas.
To supplement previous investigations of existing natural conditions at the west harbour, including the bass
nesting survey conducted in 2006, a shore-based review of conditions at the Marine Police Unit took place
on May 15, 2009. This area was not included in the previous assessment of existing conditions as it was
outside of the original study area.
The area in the vicinity of the Marine Police Unit is sheltered from wave action by existing
boardwalks/docks with only a narrow opening for boat traffic. Therefore the area, which is approximately
30 m wide by 50 m long, is expected to provide good refuge habitat for resident fish. The majority of the
area is lined with vertical sheet piling or wooden walls. Turbid water conditions on the date of the survey
did not permit observations of existing substrate conditions in the near-shore areas. Regardless, the fish
community would benefit from softer shoreline approaches, such as gently sloping littoral zone habitat with
a mixture of fine gravel substrates that would benefit spawning centrarchid species, such as largemouth
bass.
The area immediately north of the partially enclosed Marine Police Unit area included a canoe launch and
overhanging vegetation, including willow shrubs and Manitoba maple. The shoreline appeared to be gently
sloping in this area, with sporadic rock/concrete on shore giving way to gravel and finer substrates as the
water deepened.
As mentioned above, the re-development of shorelines in this area, particularly adjacent to the Marine
Police Unit, could provide more gently-sloping littoral habitat that could aid in nesting habitat for bass.
Given that this area is protected from wind and wave action, it represents good refuge habitat that ideally
will remain sheltered from these elements to preserve the current fish habitat function of this section of the
harbour.
Terrestrial Resources
The majority of the study area has limited terrestrial vegetation along the shoreline, with the exception of
Bayfront and Pier 4 Park, where manicured grass and trees are present. These open areas next to the water
provide habitat for large numbers of Canada geese (Branta canadensis), a species which is not entirely
compatible with human use of the terrestrial and aquatic portions of the waterfront due to fouling of lawns
and degradation of water quality by their droppings. In general, there is limited terrestrial wildlife habitat
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within the lands along the shoreline, based on the current land use and limited naturally vegetated areas
within the study area.
Nesting birds would be limited to those species that are tolerant of human disturbance and will also use
buildings and other structures as nest sites. There are no colonial waterbird nesting areas within the study
area. Breeding birds within the Hamilton Harbour ESA include several duck species that are rare in the
City of Hamilton (Dwyer and Lindsay, 2003). Although nesting habitat for these species likely does not
exist within the study area, the extensive weedy shallow waters may provide important foraging habitat.
Several significant species have been documented in Hamilton Harbour, and may include the west harbour
study area as part of their range. Two federally and provincially threatened turtles, the eastern spiny
softshell (Apalone spinifera spinifera) and the common musk turtle (Sternotherus odoratus), are known to
occur in the harbour. The most recent sighting of a common musk turtle was in the nearby Cootes Paradise
fishway. Based on the lack of natural habitat, sparse vegetation, lack of cover and the prevalence of
vertical shoreline walls in the study area, quality habitat for these species does not occur within the study
area.
4.2. Public Access, Parks and Open Space
4.2.1. Public Access
Shoreline Access
A significant portion of shoreline is accessible to members of the public (67%). These areas include the full
extent of shoreline at Bayfront Park; the hand launch at the east end of Macassa Bay; the shoreline of Pier 4
Park; and the eastern portion of the study area beyond Pier 7. There are also a number of shoreline stretches
where public access is not fully limited, but instead controlled at specific times for managed leaseholder
use. These areas can be found from the shoreline at Leander east toward Royal Hamilton Yacht Club
(RHYC). There is also a portion of the shoreline around RHYC where access is not fully understood, and
where the shoreline is technically public, but not fully accessible.
Waterfront Trail
The Hamilton Waterfront Trail Extension is a 'continuation' of the Hamilton Waterfront Trail (located
between Princess Point and Pier 4). The 1.9 km trail extension starts at Pier 4 and proceeds eastward, just
past Pier 8, to Eastwood Park. The trail runs at or near the waterfront, parallel to Guise Street and Dock
Service Road, and along the perimeter of Pier 8. Within and adjacent to the Hamilton west harbour study
area, the main access points to the Waterfront Trail (with parking and bicycle access) are:
Dundurn Park-York Boulevard (access to Trail along Strachan Channel via staircase with bike
trough);
Bayfront Park-Harbourfront Drive and Bay Street;
Pier 4 Park - Leander Drive and Guise Street;
Pier 8 - Canada Marine Discover Centre; and,
HMCS Haida at Catherine Street.
From Pier 4 Park to the Harbour West Marina (Hamilton Port Authority) there are two trail routes for the
Waterfront Trail:
the street level trail that runs parallel to Leander Drive and Guise Street, and offers a direct
connection for those passing through; and,
The water’s edge trail that runs in proximity to the shoreline, wherever possible, bypassing the
private operational areas of the clubs and the marina.
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4.2.2. Parks and Open Space Areas
Bayfront Park
Bayfront Park is a large 8.97 hectare (46.87 acre) park, opened in 1993, and located at the west end of the
study area. Developed on impacted industrial landfill, Bayfront Park is one of the west end’s most popular
green spaces. Bayfront Park hosts several festivals and events annually. Some are located primarily within
the park itself, while others may extend to other areas of the waterfront as well. Key features in the park
include: Waterfront Trail; beach; public boat launch; grass amphitheatre; pavilion and boardwalk; war
memorial gazebo; walkways; picnic tables; benches; washrooms; telephone booth; parking; bike racks.
Bayfront Park to Macassa Bay Walkway
The 1.96 hectare (4.84 acre) Macassa Bay Walkway property links Bayfront Park to Pier 4 Park. Part of the
Waterfront Trail, the walkway goes past the Macassa Bay Yacht Club and through MacDonald Marine,
which are located on land leased from the City.
Pier 4 Park
Pier 4 Park is located to the east of Bayfront Park on Bay Street North, at Leander Drive. Key features in
the park include: the Waterfront Trail; a boardwalk with pavilion and benches; open lawn area (with
depressed area for potential ice rink flooding); small beach; an 80 foot tugboat play structure; washrooms,
meeting room and club space at the Gartshore-Thomson Building. Pier 4 Park also holds events such as the
United Federation of Commercial Workers Picnic (approximate attendance is 30 people). Some of the
City’s larger waterfront-wide events and festivals also may extend into the park.
4.3. Land Use/Technical
4.3.1. Municipal Infrastructure
Sewers- There are two combined sewer overflow (CSO) tanks located within the study area. The first is
located within the Bayfront parking area adjacent to Harbour Front Drive, and the second, north of the
intersection of Guise and James Streets. Local sewers are located on the boundary streets adjacent to the
study area. These include; (i) storm and combined sewers on Guise Street from James to John Street, (ii) a
combined sewer on Guise Street from MacNab Street to James Street and (iii) a combined sewer on Bay
Street between Guise and Strachan Streets. Within the immediate West Harbour Recreation Master Plan
study area, sanitary and storm sewers are located in front of the Leander Boat Club and drain south-
westerly to Harbour Front Drive along the internal lane that runs from Harbour Front Drive to Pier 4 Park.
Watermains- Watermains exist on the boundary streets to the study area. These include distribution
watermains on; (i) Guise Street from Hughson Street to Bay Street, on (ii) Bay Street between Wood and
Guise Streets, and on (iii) Bay Street from Burlington Street to Strachan Street. There is an existing
watermain located on Harbour Front Drive that services the combined sewer overflow tank flushing
operations; however, this watermain has limited potential for further extension west.
All existing facilities in the study area are connected to the trunk sewer and distribution mains noted above.
Existing municipal infrastructure is shown on Figure 4.1.
4.3.2. Marine Facilities
From west to east the Hamilton West Harbour is home to the Macassa Bay Yacht Club, MacDonald Marine
Service, Hamilton Bay Sailing Club, Leander Rowing Club, the RHYC, the Harbour-West Marina, and the
Hamilton-Halton Police Marine Unit. Each of these operations occupies a discrete and separate area of the
waterfront, with varied jurisdiction over water-based marine areas. The approximate location of these
existing facilities is shown on Figure 4.2.
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Interviews with each of the boat clubs were conducted to understand the make-up of the club and help
determine future facility needs. The following summarizes the status of each club. The shore and on-water
facilities associated with the boating clubs/facilities are described in Sections 4.3.3 and 4.3.4.
Macassa Bay Yacht Club – operating since the late 1970s this club is comprised of about 500 individuals
with 150 voting members. They have approximately 110 boat slips serving both sailing and power boat
enthusiasts. Slips are 100% occupied and there continues to be strong demand.
MacDonald Marine Service – This is a privately owned and operated marine storage and repair business
operating since the mid-1970s. It operates approximately 130+ boat slips and accommodates winter
storage for about 160 boats. In recent years this facility has been operating at about 90% occupancy.
Hamilton Bay Sailing Club – A co-operative type sailing club that owns and operates a fleet of about 18-20
boats.
Leander Boat Club – This club has an 80-year history in the Hamilton Area and has been operating out of
its current location since the early 1970s. The club has approximately 450 members. It is home to the
McMaster University’s rowing program. According to club representatives, the membership base has been
expanding in recent years as a result Canada’s emerging presence in the sport at the Olympic level. Interest
in the sport is growing, spanning all age segments ranging from teens to seniors.
Royal Hamilton Yacht Club – This club has been operating in Hamilton Harbour since 1888 and is
considered to be one of Ontario’s oldest sailing clubs. The RHYC has a member base between 250 and
300 full-time voting members plus family. While the club membership has been declining in recent years
the RHYC has been actively engaged in promoting youth sailing programs. This is the only sailing club
that hosts regatta events.
Harbour West Marina – This full service public marina is owned and operated by the HPA. The marina has
220 slips, approximately 95% of which are leased on a seasonal basis, with winter storage for
approximately 400 boats. It is one of the largest marinas on Lake Ontario.
Hamilton/Halton Police Marine Unit - The marine unit provides both water based and land based
emergency response. It also provides search and rescue and armed response for marine-related customs
incidents. The unit has identified that its existing operation at Pier 7 is not adequately located or equipped
to provide the services required.
4.3.3. Shore Facilities and Water Levels
A review of shoreline facilities was undertaken to determine the type of shoreline protection, crest
elevation, and depth of water in front of the structure as well as the general condition of the shoreline
structures where noted. The shoreline was divided into 11 reaches bases on similar coastal conditions.
Descriptions of shoreline conditions initially reported were based on visual observation above water level
only, made by a professional engineer with experience in coastal engineering and marine structures and
covered by all reaches.
A further assessment and detailed underwater inspection of the some of the structures within the main basin
were undertaken in April 2012 to confirm and refine shoreline areas needing improvements. The
underwater inspection focused on structures where potential repairs are being considered to assist with
determination of the remaining design life. A report detailing the findings of the underwater review is
included in Appendix A.
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The condition of the shoreline structures is shown in Figure 4.31.
An initial assessment of the Wave Climate was undertaken using wind data from the Toronto Island Airport
and is presented in the Phase 1 Technical Report (see Appendix A). This work was updated based on wind
data from the Hamilton Airport and is included in Appendix D.
Based on available water level data, a design high water level of 76.0 m global sea level is recommended
for the West Harbour Waterfront Recreation Master Plan. The review of the wave climate in the west
harbour indicated that a typical design wave height is approximately 1.0 m or less and maximum design
wave height is less than 1.5 m. Wave uprush elevations for each reach of the shoreline and for typical
structures found within each reach are presented in the Phase 1 report (Appendix A). A significant portion
of the shoreline (with the exception of Bayfront Park) is susceptible to wave overtopping during severe
storms at design high water levels.
The approach to backshore flood control and mitigations was discussed with staff of Hamilton
Conservation Authority (HCA) on a number of occasions. The position of the HCA is outlines in a letter
dated October 30, 2008 forwarded to Mr. Readman at the City of Hamilton. The overall approach outlined
in the letter indicates that overtopping of primary shore structure is acceptable if other measures, such as
secondary walls, are taken to control the effects of the wave overtopping. The letter recognizes that one
single method does not need to be employed along the entire shoreline of the study area. The presence of
extensive existing development in proximity of the shore, existing site grading and proposed staged
implementation of the plan make it impossible to apply one single approach and whole scale rising of the
site. We also note that the floating breakwater that now exists provides some reduction of waves during
low to moderately heavy wave conditions and this will further reduce flood frequency and extent.
1 Note that the format of Figure 4.3 is slightly different than what was presented at the PIC in June 2012. The yellow colour shown
on the figure on the PIC panels is indicative of routine maintenance done by the City of Hamilton, while the yellow on Figure 4.3
shows areas of no structural concern. In addition, Figure 4.3 only shows the condition of shoreline structures within the main basin
and Macassa Bay. The linear extents of each improvement category are conceptual in nature.
Figure 4.3: Shoreline Conditions
Note: linear extent of improvement categories is conceptual only
No Structural Concern (below flood level)Good Condition
Structural Concerns (near end of deisgn life or inadequate for public use)
Structure Competency of Immediate Concern
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4.3.4. On-Water Facilities
On-water facilities in the study area include docks and the existing floating breakwater fronting mooring
facilities of the HPA and the RHYC. There are seven organizations that operate or own docks and
breakwater in the study area. These include the City of Hamilton, HPA, RHYC, Leander Boat Club,
Hamilton Bay Sailing Club, MacDonald Marine Services and the Macassa Bay Yacht Club.
Boat Docks- The docks of the HPA marina include both fixed and floating docks. The docks are primarily
located off an extension pier at the end of James Street and off the west side of the pier enclosing the
Hamilton/Halton Police Marine Unit facility. The Iroquois dock is a relatively new dock constructed in
1990 by the HPA. The dock suffered damage during a storm in December of 1991. The damage was
repaired and appears to be in good condition now.
The docks of the RHYC are located on the west side of club area and the finger docks are either connected
to the land or to two main docks extending in the northerly direction. The docks of the RHYC are
functional but considered to be in poor condition. There is evidence of on-going repair and further
maintenance is expected to be required.
Leander Rowing Club operates no permanent dock. Only two seasonal floating boarding docks are shown
along the shore in aerial photographs. Docks were not installed during our site reviews.
Hamilton Bay Sailing Club operates no permanent dock. Only one seasonal floating boarding dock is
shown along the shore in aerial photographs. This dock was not installed during our site reviews.
Docks in the MacDonald Marine Services area consist of three main docks. The east dock is the floating
type. The central dock is the fixed type at the shore and a floating section was added to approximately
double its total length. The west dock is a fixed dock. Floating docks appear to be in good condition and
well maintained. The fixed docks show some movement and settlement. A detailed structural analysis of
the docks was not completed.
Docks in the Macassa Bay Yacht Club (MBYC) basin include both floating and fixed docks. The docks
include four main docks and additional floating finger piers off the east side of the inner basin. The east
main dock has a finger dock on the west side only. The third main dock from the west side is a fixed dock
at the shore and floating docks were added at the end to extend it and double the capacity.
Floating Breakwaters- Two floating breakwaters were installed in 1990
as part of a planned expansion of docking facilities by the Hamilton
Harbour Commission. The intent of the breakwater was to provide
protection for the floating docks installed as part of the same project
west of the RHYC known as the Iroquois Dock and to allow for future
expansion of docking facilities. The floating breakwater and the
Iroquois dock were damaged in a storm that occurred in early December
1991. The City of Hamilton continues to monitor the conditions of the
breakwater. The most recent survey was completed in 2011.
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5.0 PROBLEM IDENTIFICATION (Class EA Phase 1)
The Waterfront Concept Plan, as presented in Section 2 of this report and shown in Figure 2.1, requires a
number of improvement projects including buildings, trails, sewer and water connections and shoreline
improvements. Not all of the improvements required as a result of the Waterfront Concept Plan require EA
approval. As noted previously, both the shoreline and breakwater are infrastructure components that fall
under the Class EA process.
The review of existing conditions in the study area lead to the following opportunities related to shoreline
and breakwater facilities.
Shoreline Problem/Opportunity
The structural conditions of the existing shoreline were assessed in the first part of this study and
summarized in the Phase 1 Technical Report (Envision et al, 2006). Additional work was undertaken in
2012 to confirm underwater conditions. As shown in Figure 4.3, there are sections of the shoreline in good
condition; sections where there are no structural concerns below the flood level; areas where the existing
structure is near the end of its design life or inadequate for public use; and areas where the structural
competency of the existing structure is of immediate concern. The deficient shoreline structures are mostly
located in areas of Hamilton Harbour Authority Harbour West, the RHYC, the MacDonald Marina and
Macassa Bay Yacht Club.
For much of the shoreline, with the exception of Bayfront Park and Pier 4, the crests of the shoreline
structures are below present applicable flood standards. As noted in Section 4.3.3, the redevelopment of
the shoreline areas will require shoreline hazards to be addressed and stable shoreline treatments that
accommodate the proposed development provided. Thus, the problem/opportunity to be addressed is the
need to improve existing shoreline structures to a) ensure public safety and provide an acceptable design
life for shoreline areas identified as deficient on Figure 4.3; and b) meet applicable flood standards.
Where improvements are taking place, there is also an opportunity to
increase the area and extent of naturalization of shoreline areas to
improve fish habitat. For example, replacing straight walls with gently
sloping shore profiles has the potential to allow the growth of cattail,
bulrush, water lily and other emergents. The greatest potential exists in
the western end of the study area, where relatively shallow water abuts
the existing pier works.
Breakwater Problem/Opportunity
An existing floating breakwater is located between Pier 8 and Pier 4. It is
placed in two sections with an approximately 20 metre opening between
the structures. Wider openings are provided between the breakwaters and
Pier 8 and Pier 4. The existing breakwater is an “A” frame floating
structure anchored to concrete blocks placed on the lake bottom. It has
experienced past damage and required significant repairs. Although no
significant damage to the breakwater and docks behind it has been reported
since a significant event in 1991, more damage in the future is likely.
The problem/opportunity associated with the breakwater is to provide adequate
protection to the harbour and marina.
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6.0 PUBLIC CONSULTATION
Consultation on the Hamilton West Harbour has been extensive including events related to Setting Sail, the
Hamilton West Harbour Waterfront Recreation Master Plan, and specific to this shoreline and breakwater
Class EA. This section focuses on the consultation specific to the shoreline and breakwater. A brief
summary of the consultation during the Master Plan is also presented.
6.1. Consultation for the Shoreline and Breakwater
To provide information for public review and input on the shoreline and breakwater, two public
information centres (PIC) as well as meetings with stakeholders and agencies were held. The following
provides a summary of the consultation activities. All consultation materials and comments are included in
Appendix B.
6.1.1. Stakeholder Meetings
The following stakeholder meetings were held. Notes from these meetings are included in Appendix B.
Technical Committee Meeting - November 10, 2011: The purpose of this meeting was to introduce City
staff and key team members and to ensure everyone had an understanding of the project history and to
discuss the project plan and timeline. Key discussion items included project objectives to fulfill the Class
EA process and result in a design for the shoreline and breakwater, project history and status, and
stakeholder and agency consultation.
Agency Meeting – February 23, 2012: This meeting involved a presentation on the project background, the
problems and opportunities, alternative solutions considered and the work to be undertaken on alternative
designs. Representatives from the Hamilton Conservation Authority and Department of Fisheries and
Oceans were present at this meeting. Waterfront Trust Meeting - February 23, 2012: This meeting involved a discussion with Waterfront Trust
representatives to confirm that the shoreline and breakwater works would fit in with the principles and
intentions of the waterfront concept.
Stakeholder Meeting- May 24, 2012: All boat club and marina operators were invited to attend a meeting
prior to the Public Information Centre to learn about the ongoing work on the breakwater and shoreline and
provide their input from a waterfront user perspective.
6.1.2. Public Information Centres
Two Public Information Centres were held to introduce and review the shoreline and breakwater water
study. The following provides information on each event.
First PIC on Need and Alternative Solutions (June 23, 2009)
This PIC was held on Tuesday June 23, 2009 at the Hamilton Convention Centre from 6-8pm. The purpose
of this PIC was to present the Waterfront Concept Plan and the Class Environmental Assessment work on
the shoreline and breakwater. Information on the problem and opportunity associated with the shoreline
and breakwater as well as alternative solutions and the preliminary preferred solutions were presented for
public review and comment.
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Notification for the PIC included a newspaper notice in the Hamilton Spectator on June 12, 2012, and June
19, 2012. The notice was also mailed out to those on the project contact list which included technical
agencies and members of the waterfront advisory group.
Approximately 92 people attended this PIC and 74 comment forms were received.
Second PIC on Alternative Design Concepts, Effects and Mitigation (June 12, 2012)
This PIC was held on Tuesday, June 12, 2012 at Bennetto Elementary School from 6-8pm. Display panels
were set up around the room to remind attendees of the work completed previously on alternative solutions
for the breakwater and shoreline and to illustrate the current work on alternative design concepts.
Specifically, display panels showed the following for review and comment:
alternative layouts and types of floating breakwaters being considered;
evaluation of these alternatives and the preliminary preferred alternative;
proposed shoreline treatments; and,
potential effects and proposed mitigation associated with the proposed shoreline and
breakwater improvements.
Notification for the PIC included a newspaper notice in the Hamilton Spectator on June 1, 2012 and June 8,
2012. The notice was also mailed to those on the project contact list.
Approximately twenty-nine (29) people attended this PIC and two comment forms were received.
6.1.3. Communication
Notice of Commencement
The City issued a Notice of Commencement for the Class EA at the initiation of the Hamilton West
Harbour Recreation Master Plan. The Notice of Commencement was combined with the notice of the 1st
PIC held on May 16, 2006.
Notice of Completion
The City issued a Notice of Completion placed in the Hamilton Spectator on April 26 and May 3, 2013.
The notice was also mailed to those on the project contact list.
This notice initiates the 30-day public and agency review period of this Environmental Study Report. The
notice also advises of the opportunity to submit a request for a Part II Order to the Minister of the
Environment if there are outstanding concerns that have not been addressed through the work undertaken.
Although incorporated into the same Environmental Study Report, the proposed shoreline and breakwater
improvements are essentially separate projects and as indicated in the Notice of Completion, any Part II
Order should specify the project component.
Website
The City provides easy access to project information through its web site www.hamilton.ca. PIC materials
and reports were posted on the City web site. A contact was provided so that those reviewing this on-line
information could call to provide comment.
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6.2. Consultation for Hamilton West Harbour Waterfront Recreation Master Plan
The potential for improvement to the shoreline and breakwater were initially integrated into the discussions
on the West Harbour Waterfront through the Recreation Master Plan. The following is a summary of the
consultation that was undertaken as part of the Recreation Master Plan.
Waterfront Advisory Group - The City of Hamilton formed the Waterfront Advisory Group (WAG) to
provide a forum for key stakeholders and the City of Hamilton to discuss waterfront recreation
opportunities, identify issues and to explore solutions that are right for the West Harbour community and
the City. The WAG provided advice to the project study team on all aspects of the study. Five WAG
meetings were held between May 2006 and October 2009. All meetings included a presentation, a question
and answer session and for some meetings a small group discussion.
Public Information Centres - To provide information for public review and input, four public information
centres were held on the following dates:
May 16, 2006 – to initiate the recreation master plan project and discuss issues and
opportunities;
December 14, 2006 – to present the decision making process and existing conditions;
May 8, 2007 – to present a preferred concept for the West Hamilton Waterfront; and
June 23, 2009 – to present a revised concept for the West Hamilton Waterfront and Phases 1
and 2 of the Class EA process.
Additional Stakeholder Consultation - In addition to the formal events noted above, consultation on this
project also included individual meetings, mall displays, and a survey of Waterfront Trail users and posting
of information on the City web site.
Technical Team Meetings - The City convened a technical team for this project which included staff from
key City departments including Planning and Economic Development, Public Works, Traffic Engineering
and Operations, Public Health, Hamilton Emergency Services and Culture and Recreation. The technical
team provided valuable input based on their mandate as it related to the waterfront. The team met six (6)
times during the study. Typically the meetings were held in advance of a WAG meeting or PIC to ensure
that the technical elements of the information being presented were accurate. Meetings were held on the
following dates:
April 11, 2006 – to initiate the project and discuss background information and issues;
June 13, 2006 – to present and obtain input on the draft Phase 1 Technical Report;
August 9, 2006 – to discuss the long term concepts for the waterfront;
February 21, 2007 – to discuss the preferred concept;
May 7, 2009 – to review the Waterfront Trust Concept Plan;
May 25, 2009 – prior to the 4th WAG meeting and 4
th PIC; and
October 8, 2009 – to discuss the final waterfront concept plan prior to the 5th and final WAG
meeting.
Agency Meetings - Meetings were held with agencies as noted below. These meetings were primarily to
deal with issues associated with water levels, flooding potential, fisheries issues and dredging.
May 19, 2006 - Department of Fisheries and Oceans and the Hamilton Remedial Action Plan
Coordinator;
February 16, 2007 - Hamilton Conservation Authority;
January 28, 2008 - Department of Fisheries and Oceans, Hamilton Conservation Authority,
Hamilton Remedial Action Plan Coordinator, Bay Area Restoration Committee; and
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July 30, 2009 - Hamilton Conservation Authority and Hamilton Remedial Action Plan
Coordinator.
6.3. First Nations Consultation
The City of Hamilton identified the following Aboriginal communities and groups as potentially having an
interest in this project:
Assembly of First Nations
Association of Iroquois and Allied Indians
Council of Ontario Chiefs
Hamilton Executive Director’s Aboriginal Coalition
Hamilton Indian Centre – BOND
Hamilton Regional Indian Centre
Hamilton/Wentworth Métis Council
Haudenosaunee
Huronne-Wendat
McMaster University Indigenous Studies Program
Métis Nation of Ontario (MNO)
Mississaugas of New Credit
Mohawk College Aboriginal Student Services
Native Women’s Centre
Six Nations
Project notices were sent and follow up letters were sent to the groups listed above. Follow-up calls were
also made to the groups to ensure any comments, questions and concerns were captured. A summary of
consultation activities is presented in Table 6.3, below. It should be noted that throughout the process, no
correspondence has been received from any of these groups or First Nations.
Table 6.1: First Nations Consultation Activities
First Nation Group Notice of PIC
(May 24, 2012)
Update Letter
(October 2,
2012)
Follow-up Call Notice of
Completion
Assembly of First
Nations
Association of Iroquois
and Allied Indians
Council of Ontario
Chiefs
Hamilton Executive
Director’s Aboriginal
Coalition
Hamilton Indian Centre
– BOND
Hamilton Regional
Indian Centre
Hamilton/Wentworth
Métis Council
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First Nation Group Notice of PIC
(May 24, 2012)
Update Letter
(October 2,
2012)
Follow-up Call Notice of
Completion
Haudenosaunee
Huronne-Wendat First
Nation
McMaster University
Indigenous Studies
Program
Métis Nation Ontario
(MNO)
Mississaugas of New
Credit First Nation
Mohawk College
Aboriginal Student
Services
Native Women’s
Centre
Six Nations
The City of Hamilton is committed to responding to any First Nations comments or questions through the
detailed design and construction phases of the project.
6.4. Comments Received
Comments received during recent consultation specifically related to the shoreline and breakwater have
been responded to and included in Table 6.1. These letters, comment forms and emails recently received
are included in Appendix B.
All comments received during the West Harbour Recreation Master Plan were summarized and responded
to, where necessary, on the project website (www.hamilton.ca/waterfront-plan). This earlier input was
reviewed and comments specific to the shoreline or breakwater were incorporated into Table 6.1.
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Table 6.2: Summary of Comments Received on the Proposed Breakwater and Shoreline Improvements
Date Comment Response
June 23/09 Public
Information
Centre
Breakwater- consider moving to outer edge of Harbour. Would
add space for putting 900+ docks and add space for moving Haida
to space opposite the inland water museum.
Breakwater locations are being considered as part of the
Environmental Assessment.
The proposed “break water” construction is an invitation for
chaos. Wind and waves will slide up the sloping sides and base to
height ratio is not necessary. Use smaller imprint as suggests by
Randal Reef engineers that encase the stone and rubble to prevent
decay and pollution. By blocking the ends you could add buttress
walls at a later date.
The breakwater panel was showing an example of a fixed
and floating breakwater for illustration purposes.
Alternative designs for the breakwater will be considered
further during Phase 3 of the Municipal Class
Environmental Assessment.
It is also noted that a floating breakwater was the
preferred option, not a fixed breakwater.
The breakwater should become a public walkway- part of the trail
connected at the Discovery Centre. This would help address traffic
and parking issues as well as increasing exposure to an
underutilized facility.
The project team is looking at utilizing the breakwater as
a public walkway but also must consider marine
navigability and the risks of allowing public access on a
floating breakwater.
My first concern is that the break wall should be a real break wall,
capable of protecting the boats from waves. The current break wall
is totally inadequate. In fact, any floating break wall is inadequate.
Waves are not just a movement of water on the surface. Waves
reach right to the bottom of the body of water. Therefore, the
break wall must also reach to the bottom of the Bay. Essentially,
that is landfill such as at Bronte’s Outer harbour. Such a break
wall would provide a proper seaworthy space (or “basin”) within
which owners can have confidence to keep their boats and define a
space on the water within which the club can manage the needs of
the boaters.
Breakwall design is being evaluated through the
Municipal Class Environmental Assessment process and
it is understood that the existing floating structures are
undersized.
A comparison of floating and fixed breakwaters was
presented and a floating breakwater identified as the
preferred option at the June 23rd
Public Information
Centre. This preference will be confirmed and
documented in the project reporting.
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Date Comment Response
I reviewed the Hamilton Waterfront Trust’s (HWT) Harbour West
Concept Plan dated January, 2009 before attending Public
Information Centre #4 and seeing the West Harbour Waterfront
Recreation Master Plan (the Plan).
1. IP11 deals with “Impacts to Fish Habitats”. Although I
have been a keen fisherman for much of my life, I
question the appropriateness or need to accord this
particular aspect the emphasis which it appears to have
been given in the Plan.
2. IP15 lists a fixed breakwater, costing $30 million, as a
possible improvement. It almost goes without saying that
this particular item fails the Financial Viability test
completely.
The Remedial Action Plan office, Department of
Fisheries and Oceans, the Bay Area Restoration Council
and Hamilton Conservation Authority are other
stakeholders involved in the project that have objectives
of improving fisheries habitat. In addition Habitat
Alteration, Disruption or Destruction of fish habitat
requires authorization from the Department of Fisheries
and Oceans. Simple reconstruction of the shoreline may
trigger this. This has to be taken into account in the
planning process.
The Municipal Class Environmental Assessment process
requires the project team to evaluate “alternative
solutions to” addressing the problem of the existing
floating breakwaters. It should be noted that the preferred
solution is a floating breakwater, not fixed.
June 12, 2012
Public
Information
Centre
Macassa Bay Yacht Club member. Concerned with walkway at
the docks, e.g. pedestrian safety + boat security. Hoping fence isn't
answer. Walking along road works very well for everyone.
One of the key ideas in the Hamilton West Harbour
Recreation Master Plan is the Waterfront Trail as the
continuous recreational link throughout the City's
waterfront. It has been recognized that privacy and security
are important to the members of the Macassa Bay Yacht Club
and the plan includes a publicly accessible boardwalk in
Macassa Bay and identifies the need for a combination of
attractive security gates, security fencing and privacy
landscaping in this area.
Prefer fixed fill breakwater A floating breakwater was identified as the preferred solution.
It provides adequate protection in the Wave Climate in
Hamilton Harbour, provides flexibility for future movement
and is cost effective.
Concerned about safety The floating wave break will improve the safety for boaters.
During construction, appropriate signs and fencing will keep
people safely away from construction areas.
Should scrap the inner basin bridge The Inner Basin bridge is an element of the final Waterfront
Concept Plan to provide a continuous pedestrian route at the
edge.
Hamilton West Harbour Shoreline and Breakwater Class Environmental Assessment: Environmental Study Report
April 17, 2013
Dillon Consulting Limited Page 28
Date Comment Response
Do you have any questions or comments on the proposed shoreline
improvement?
I don't consider it an improvement - basically a waste of
money. The engineering is in question - wave action protection
and a full environmental assessment should be carried out because
there is some landfilling involved in the modifications. In my
opinion, the money would be much better spent elsewhere.
Your comment is noted. The response to some of the
additional comments below addresses your specific
engineering questions. It is noted that there is a minimal
change in the shoreline. The only area where it is anticipated
that the shoreline will change is at the existing police marine
building. There will be a small amount of infilling in this
location to remove the existing slip for the police boat. This
has been discussed with the Hamilton Conservation Authority
and the Department of Fisheries and Oceans and no concerns
have been raised. The area of infill will be balanced or
exceeded with removal of existing docks in the same area.
Hamilton West Harbour Shoreline and Breakwater Class Environmental Assessment: Environmental Study Report
April 17, 2013
Dillon Consulting Limited Page 29
Date Comment Response
The break wall will change wave action on the shore and current
flows, both upper and lower water regions as well as changing
bottom patterns. What environment studies have you done to
determine impacts on fish, wildlife, plant life and use and
enjoyment of the current residents?
The Environmental Study Report (ESR) for this project will
document the work completed to assess the proposed
breakwater and shoreline improvements. We believe that an
appropriate level of detail has been incorporated into the
assessment of potential natural environment impacts and the
development of mitigation.
Existing condition information for the area has been collected
and is documented in the Phase 1 Technical Report - Existing
Conditions, Issues and Opportunities which can be found on
the City website
( http://www.hamilton.ca/NR/rdonlyres/4999833C-B9E3-
431A-9AE1-DA8AB16CA39F/0/iiTableofContents.pdf) This
information was updated as appropriate and used to assist in
determining the potential impacts associated with the proposed
breakwater and shoreline improvements. Updated existing
conditions information will be included in the ESR.
Any concerns expressed throughout the consultation process
regarding potential impacts on use and enjoyment of the west
harbour by the residents and boaters will be documented in the
ESR. We note that the proposed improvement to the
breakwater has the opportunity to enhance use and enjoyment
by boaters as it will fully protect the existing marina. The
design of the breakwater has been proposed to allow flexibility
for the marina to expand. Use and enjoyment by the fishing
community will be enhanced by the creation of fisheries
habitat where possible as recommended by the Department of
Fisheries and Oceans (DFO).
Hamilton West Harbour Shoreline and Breakwater Class Environmental Assessment: Environmental Study Report
April 17, 2013
Dillon Consulting Limited Page 30
Date Comment Response
2) Do you have any questions or comments on the preferred
breakwater alternative?
Engineering is very much in question as it is based on computer
modeling rather than data collected from actual monitors and
instrumentation - the model is based on assumptions that could be
flawed. Suggesting an entrance facing the longest fetch as an
option shows a lack of experience of the project team.
Computer modeling of wave conditions is an acceptable
method of analysis used by all practicing coastal engineering
firms. Basic formulations used by the models are well
established and have been used for decades. The actual
models used were developed and made public by the US Corp
of Engineers and are well accepted in the scientific
community. A number of entrance configurations were
developed including an option facing the east quadrant which
provides most direct access to the open part of the bay. It is
the purpose of the class environmental assessment to consider
and evaluate alternatives.
Hamilton West Harbour Shoreline and Breakwater Class Environmental Assessment: Environmental Study Report
April 17, 2013
Dillon Consulting Limited Page 31
Date Comment Response
It is also part of any environmental assessment to perform testing
in regards to the project's impacts and to present the results of this
testing to the public. I have yet to see actual test results performed
in this area of the harbour. A modeling program is only as good
as the data and local conditions entered into it. Where is this data
set? What have you done to prove that the model is applicable to
this location? The environmental assessment should also show
impacts on animals, fish, plant life, etc. Where is this
information?
The wave hindcast model used for this project is a common
tool that has been used by coastal engineers for many
years. The hindcast procedure has been calibrated by
Shoreplan Engineering Ltd in past projects against measured
waves on Lake Ontario. There is no wave calibration data in
Hamilton Harbour that the project technical team is aware
of. The lack of calibration data at a location does not
invalidate the use of the model. The results of the hindcasts
produced by this model have been used to design many
shoreline projects without site specific calibrations including
the design of revetments, seawalls and beaches along Lake
Ontario. These structures have performed well since their
design. The designs have been accepted by approving
agencies including Conservation Authorities, Ministry of
Natural Resources, Department of Fisheries and Oceans, and
Transport Canada. The project technical team is confident that
the wave data produced for the Hamilton West Harbour
project is suitable for the analysis completed in the
Environmental Assessment phase of the project.
We are proposing to replace an existing floating breakwater
with another floating one which will be more effective against
large infrequent waves. Its impact on frequent low to
moderate waves is the same as the existing breakwater. The
existing floating breakwater occupies approximately the top
three metres of the water column. The proposed floating
breakwaters are not expected to occupy any greater portion of
the water column. It may occupy less if a concrete pontoon
design is selected during the tendering process. Therefore, the
water circulation will be very similar to existing conditions.
As noted in the previous response, data on the existing
conditions has been collected and potential impact on the
natural environment including animals, fish, plant life etc. will
be incorporated into the ESR and appropriate mitigation
recommended if necessary.
Hamilton West Harbour Shoreline and Breakwater Class Environmental Assessment: Environmental Study Report
April 17, 2013
Dillon Consulting Limited Page 32
Date Comment Response
3) Do you have any additional concerns regarding the potential
construction impacts?
A full environmental assessment must be done - not a Class
assessment. If this does not happen an application for a Part II
Order will be necessary.
The applicability of the Municipal Class Environmental
Assessment ( Class EA) was discussed at the meeting with
yourself and Barbara Slattery from the Ministry of the
Environment on September 30, 2009. The Municipal Class EA
(October 2000, as amended in 2007 & 2011) has been
developed to meet the requirements of the Environmental
Assessment Act. It is appropriate for municipalities to use this
Class EA for projects that are identified in one of the Class EA
Schedules.
In Appendix 1 (ii) of Municipal Class EA, Municipal Water
and Wastewater projects identifies the construction of "new
shoreline works, such as off-shore breakwaters, shore-
connected breakwaters, groynes and sea walls" as Schedule C
projects.
It has yet to be determined if a Municipal Class Environmental
Assessment is appropriate for this project. Any project can be
subject to a bump up. Just repeating the statement does not make
it a fact.
In the meeting I asked Ms. Slattery "who she trusted more, the
Ministry she works for or the City". Her reply was "the City". I
wonder if she has informed the Deputy Minister of her feelings? It
certainly doesn't give me a lot of confidence that this project has
proper oversight.
It is true that citizens have the opportunity to request that the
Minister of the Environment make an order for the project to
comply with Part II of the Environmental Assessment Act. If
granted, this could result in a requirement to complete an
individual environmental assessment.
Hamilton West Harbour Shoreline and Breakwater Class Environmental Assessment: Environmental Study Report
April 17, 2013
Dillon Consulting Limited Page 33
Date Comment Response
I would like to point out that although Class EA's are referred to in
the Act the guidelines you are trying to apply are not (beyond
recognizing the proponent as the MEA).
The Municipal Engineers Association (MEA) Guidelines for Class
Assessments have no legal authority in the Act. Trying to stretch a
section of a Guideline that refers to water and sewer plants to a
park/marina/commercial and possibility residential complex is not
reasonable and not in tune with the MOE class guidelines or the
intention of the Class EA's http://www.ene.gov.on.ca/environment/en/industry/assessment_and_approvals/ environmental_assessments/ STDPROD_075722.html, hence this
alone is grounds for a Part II order.
Even a Class EA must consider: public, government agency and
Aboriginal community consultation; assessment of potential
environmental effects; assessment of alternatives.
To my knowledge you have presented no assessments, studies, or
sampling of potential environmental effects on the natural
environment. No animal, fish or vegetation studies. No possible
effects on the current users that could affect their use and
enjoyment. No data involving current changes and possible silting,
no studies of possible habitat changes. From my point of view you
have not even met the basic requirements for a Class EA which I
still do not believe applies to a marina/park and commercial
complex that you are going to build.
As noted in previous correspondence Appendix 1 (ii) of
Municipal Class EA, Municipal Water and Wastewater
projects identifies the construction of "new shoreline works,
such as off-shore breakwaters, shore-connected breakwaters,
groynes and sea walls" as Schedule C projects.
We agree with your listing of things that must be considered in
a Class EA and all have been incorporated as part of this
project. There was information on the assessment of
alternatives and potential environmental effects at the June 12,
2012 Public Information Centre you attended. The
information will be documented in more detail in the ESR.
Lastly we note that this Class EA relates to shoreline and
breakwater improvements and is not intended to address
improvements to the marina/park or any commercial complex.
Hamilton West Harbour Shoreline and Breakwater Class Environmental Assessment: Environmental Study Report
April 17, 2013
Dillon Consulting Limited Page 34
Date Comment Response
4) Do you have any other questions or comments?
a) There are many flawed assumptions - 900 boat marina? The
Discovery Centre didn't fly here in Hamilton. I'm not certain
where the additional boaters will come from given that they will
probably not be able to winter store their boats (no room) at the
marina. Few boaters would want to move their boat to a bay that
did not have at least one good anchorage. Boats in Hamilton have
a lift bridge to deal with as well. It costs about $100 in fuel to get
to the lake.
Improvements to the breakwater are required to fully protect
the existing marina. The design of the breakwater has been
proposed to allow flexibility for the marina to expand. The
Harbour West Concept Plan prepared by the Hamilton
Waterfront Trust (January 2009) identified the desire for 750+
boat slips. The number of slips were also estimated using an
average boat length, for conceptual purposes. New slips
would only be constructed based on demand.
It is difficult to separate what is to be real and what is not
considering all presentations show a larger marina.
In one public meeting two questions were asked. "Is there anyone
on this engineering team that has operated a boat over 30 feet."
Answer, "no".
"What size boat fits in a 30 foot slip". No answer.
Has any of the above changed? By the way, the answer to the
first question is 28 feet maximum.
This Class EA is for the breakwater and shoreline which
considers existing and future boating and marina use. We
believe that the technical team has the appropriate skill set and
knowledge for this work.
b) The dock design/lay-out does not take into consideration the
predominantly east/westerly winds in the bay. I can't see a
boater trying to navigate down a long boat dock to dock their
boat at the end - the boat could be sideways by the time they get
to the end of the dock. Dock lengths have not been identified but
most boats, on average, are well over 30 feet. Not certain that
this has been taken into consideration.
The dock layout presented at the June 12th PIC was intended
to be conceptual only and was presented to show the location
of the breakwater for a marina of that size. The configuration
of the marina will be confirmed at the time that expansion
occurs.
Then I assume you will be doing another EA at that time before
proceeding?
The type and extent of study depends on a number of things
including the proponent of the project and the nature of the
works proposed. No details are available on the future of the
Marina and as such the need for an EA cannot be confirmed.
The Recreation Master Plan.
Hamilton West Harbour Shoreline and Breakwater Class Environmental Assessment: Environmental Study Report
April 17, 2013
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Date Comment Response
c) The walkway at Macassa Bay Yacht Club is ridiculous. It's a
waste of money. The gates at Macassa Bay Yacht Club are open
for any one that wants to get closer to the water.
One of the key ideas in the Hamilton West Harbour
Recreation Master Plan is the Waterfront Trail as the
continuous recreational link throughout the City's waterfront.
It has been recognized that privacy and security are important
to the members of the Macassa Bay Yacht Club and the plan
includes a publicly accessible boardwalk in Macassa Bay and
identifies the need for a combination of attractive security
gates, security fencing and privacy landscaping in this area.
d) Security is a huge issue for the Macassa Bay Yacht Club
boaters. Would you want a walkway running across the front of
your cottage?
One of the key ideas in the Hamilton West Harbour
Recreation Master Plan is the Waterfront Trail as the
continuous recreational link throughout the City's waterfront.
It has been recognized that privacy and security are important
to the members of the Macassa Bay Yacht Club and the plan
includes a publicly accessible boardwalk in Macassa Bay and
identifies the need for a combination of attractive security
gates, security fencing and privacy landscaping in this area.
e) Any new boat 30 feet or larger costs over a hundred thousand
dollars. Would you want to leave a boat costing over several
hundred thousand dollars at one of these marinas with little or no
security?
One of the key ideas in the Hamilton West Harbour
Recreation Master Plan is the Waterfront Trail as the
continuous recreational link throughout the City's waterfront.
It has been recognized that privacy and security are important
to the members of the Macassa Bay Yacht Club and the plan
includes a publicly accessible boardwalk in Macassa Bay and
identifies the need for a combination of attractive security
gates, security fencing and privacy landscaping in this area.
f) It would be nice to see a few people on the design/build
committee that have actually operated a boat over 30 feet and
have some knowledge of the requirements to do so. The
engineering group seems to be composed of all theory and no
practical knowledge.
The team working on the Class Environmental Assessment
has significant combined experience in environmental
assessment, marina design and shoreline engineering. The
level of expertise is appropriate for the project. We have also
engaged stakeholders, such as the Royal Hamilton Yacht Club
and Macassa Bay Yacht Club to provide comments on the
design.
Hamilton West Harbour Shoreline and Breakwater Class Environmental Assessment: Environmental Study Report
April 17, 2013
Dillon Consulting Limited Page 36
Date Comment Response
So you acknowledge you still after all these years do not have
any expertise on the committee? I still do not have any of the
environment test data needed for the assessment like current and
bottom information, bottom soil testing, wave action testing,
etc.....So what have you actually done in the way of an
environmental assessment?
We note that wave action within the project area has been
appropriately studied as described in the response to question
(2) above. As noted in the Phase 1 Issues and Options report,
there have been a number of geotechnical reports completed in
the West Hamilton Harbour. Additional geotechnical work
was not required for this project.
g) It makes no sense to design a breakwall when you haven't
designed the marina it is going to protect. That is like designing
a foundation when you have no idea the size of the building that
you are going to put on it.
The breakwater proposed is needed to protect the existing
marina. A floating breakwater provides flexibility. It can be
readily relocated and implemented in phases, if necessary. It
has been designed to be flexible to serve an expanded marina
as well.
h) Finally, it seems comments made since 2007 have not in any
way influenced the design or plans for the waterfront
development Are you just going through the steps to try to
show that you meet the requirements of the Environmental
Assessment?
The City of Hamilton has completed significant consultation
on the plans for the Hamilton West Harbour and numerous
comments have been received. I may also want to direct you
to www.hamilton.ca/waterfront-plan where there is a 45 page
comment response table from PIC 4. Comments on the
Hamilton West Harbour plans in general were considered in
the preparation of the Hamilton West Harbour Waterfront
Recreation Master Plan. In planning processes it is not always
possible to reach consensus as there are often competing
priorities from different user groups. All comments have been
considered; however, they may not all become part of the
recommended plan. Comments specific to the shoreline and
breakwater are being considered in this Class EA.
Hamilton West Harbour Shoreline and Breakwater Class Environmental Assessment: Environmental Study Report
April 17, 2013
Dillon Consulting Limited Page 37
Date Comment Response
Since the start of this process and the very first public meeting,
nothing in the City’s approach to the environmental assessment
has changed. Although all public meetings were entitled
Environmental Assessment meetings, little if any information
regarding the assessment was presented. Most was conceptual
information.
No true Environment impact studies have been done, just some
cheap modeling.
It strikes me that the City wishes only to pay lip service to the
Environment issues and the only thing that is going to change
this attitude is a bump-up request at time of submission backed
up with an appropriate number of signatures.
Thank you for your email. Your concerns regarding the extent
of information available during the EA process have been
noted. The Environmental Study Report (ESR) will document
the work undertaken for this project. It is anticipated that this
ESR will be available for public and agency review in early
2013. We look forward to receiving your comments on the
ESR during the review period.
Concerned about the effects on fish and wildlife in the area the
construction is taking place (e.g., schedule the activities to
appropriate times/seasons).
Section 9 of this Environmental Study Report addresses
potential effects on the natural environment and proposed
mitigation. As suggested the mitigation scheduling activities
such that in-water works are conducted during the appropriate
timing window (e.g. avoiding the spring period and
completing in-water works between July 16 and March 14)
and not during periods of elevated lake levels.
Safety for the users and frequenters of shoreline areas is a
universal concern, particularly during high wind or storm
conditions.
The new breakwater will improve the safety for boaters and
others in the harbour.
May 24, 2012 -
Waterfront
Stakeholder
Meeting
A prefer for the layout option with the opening towards the
northwest. Most problems come from the NE direction.
Comment noted, this preference was incorporated into the
evaluation of breakwater layout alternatives.
Interested in having the sailing school use the gap between the
breakwater and shore. A gap of 50-100 feet would be adequate
for the mobility of boats. It was noted that if the space is smaller, it
is less likely to be mistaken for a public entrance.
This can be accommodated in the final layout.
Hamilton West Harbour Shoreline and Breakwater Class Environmental Assessment: Environmental Study Report
April 17, 2013
Dillon Consulting Limited Page 38
Date Comment Response
The question was raised on whether it would be beneficial to have
the breakwater attached to the shore.
If the breakwater is not connected to the shore, how would it be
possible to dock boats to it?
Allowing full public access to the breakwater through a shore
connection would require consideration of public safety and
liability on the part of the City. In addition, if the breakwater
is designed for public access/use it would likely need to be
wider which would increase capital cost and require additional
maintenance. At this point, a shore connection is not being
considered.
The breakwater could be designed to accommodate docking of
visiting boats during events providing the weather is
appropriate. Passengers would need to be transported to the
shore. Whether the City wishes to allow docking will be
confirmed during detailed design and contract award.
With the existing A-frame, is there visible deterioration?
Concerns about the ability of the current breakwater to handle
waves were noted.
Milo responded that the existing breakwater is structurally
sound; however the design capacity is not sufficient for the
wave climate. The new breakwater will be sized to manage
the wave climate experienced in the harbour.
The importance of providing adequate lighting on the new
breakwater was raised. The profile of the structure is low and
sufficient lighting is required to make it visible for navigation.
Appropriate lighting and signage will be included for the
breakwater. It is noted that a Navigable Waters Protection Act
Permit will be required for the new breakwater.
For the concrete option, will there be more depth to the
breakwater? For the A-frame option, what is the depth?
Milo responded that both structure options would be deeper
than the existing structure. The specific depth will be
determined by the manufacturer based in specifications
provided by the City.
Hamilton West Harbour Shoreline and Breakwater Class Environmental Assessment: Environmental Study Report
April 17, 2013
Dillon Consulting Limited Page 39
Date Comment Response
Can the existing breakwater be reused to serve as any of the 3
sections of the proposed breakwater configuration, particularly the
sections that are inside or sheltered?
The only location at the main basin where the existing
breakwater is expected to provide suitable wave reduction is
on the west side. The waves from the west and northwest
quadrants are considerably smaller and with a shorter wave
period than from the east quadrant. Thus, the existing
breakwater will be effective. The preliminary configuration of
the entrance breakwater proposes a relatively short breakwater
section, in the order of 60 m long, on the west side. A portion
of the existing breakwater could be used on this side.
However, the remaining life of the breakwater is only about
half of the design life of the new breakwater and early
replacement may be required.
The Condition Review Report of the floating breakwater
(Riggs, 2011) indicates the breakwater requires some
immediate maintenance. The cost of the maintenance is
estimated to be in the order of $90,000. Longer term
maintenance, to be carried out in the next ten years, is
estimated to be in the order of $328,000. The remaining
service life is estimated to be 20 years. The condition of the
existing breakwater must be considered when re-deployment
is being evaluated.
What width is proposed for the walkway in front of the yacht
clubs? A wide walkway (e.g. 18 feet) would be too large to
accommodate equipment to haul out boats.
It is noted that a specific width for the walkway was not
identified in the Hamilton West Harbour Recreation Master
Plan; however it is assumed that the width would be
approximately 12 feet.
Is police building going to be moved?
Based on the Hamilton West Harbour Recreation Master Plan,
the Police Marine Unit will be rebuilt in Macassa Bay.
Discussions regarding any relocation are still underway.
Questions were raised regarding maintenance of the breakwater
and harbour. It was noted that there can be a challenge with
collecting garbage floating on the surface in areas with vegetation.
It is assumed that the maintenance of the breakwater and
harbour would be similar to what exists today. A new floating
breakwater and shoreline improvements should not
significantly change the maintenance requirements.
Hamilton West Harbour Shoreline and Breakwater Class Environmental Assessment: Environmental Study Report
April 17, 2013
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Date Comment Response
What is the initial estimate for budgets and timing? Will it be
started in the next year?
The initial estimate for the breakwater is approximately $4.5
million dollars. The budget for the shoreline improvements is
approximately $11.4 million dollars. It is noted that the
shoreline improvements will be implemented in phases.
What is the timing of the breakwater related to any expansion of
the marina. It was noted that it would make more sense to go for
the final configuration from the beginning.
An assessment of potential wave generation between the
breakwater location and moored boats was undertaken to
determine the amount of open water that could exist between
the docks and marina at this location. The results of this
assessment indicate that at the time of installation there should
be no more than 100 m of open water between the breakwater
and the floating docks.
With a floating breakwater there is the opportunity to place it
temporarily then move it to the permanent location at a later
date.
February 23,
2012 - Agency
Meeting
Will a larger anchor system be required for different types of
breakwater or if the breakwater is positioned further out.
The anchor system would not be significantly different - it
might require a few extra or heavier blocks. It was confirmed
that the area was too deep for piles.
Have there been revised calculations for wave uprush with a new
breakwater.
Revised calculations are not available but that we are
proposing an increase to the shoreline of about 1 foot
throughout with the exception of the Pier at the foot of James
Street which would be slightly higher as buildings are
proposed close to the edge.
It was indicated that new buildings should be out of the flood zone
altogether.
For new buildings this could be accomplished by making the
buildings slightly higher.
Darren confirmed that the mix of methods to manage flooding will
meet the objectives of the Conservation Authority letter.
Comment noted.
All were in agreement with the intention of keeping the existing
shoreline alignment.
Comment noted.
Is dredging in Macassa Bay still being discussed?
The City is not aware of any recent requests to dredge
Macassa Bay.
Hamilton West Harbour Shoreline and Breakwater Class Environmental Assessment: Environmental Study Report
April 17, 2013
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Date Comment Response
DFO has an Operational Statement for moorings which would
apply to the breakwaters. The proposed breakwater system will
not result in harmful alteration and thus no Fisheries Act approval
would be required. It will need to be confirmed if Navigable
Waters Protection Act authorization is required.
Comment noted. It is anticipated that approval under NWPA
will be required. Application for this approval will be
submitted subsequent to this environmental assessment.
The City is encouraged to make this a positive project by adding
fish habitat where possible and making people aware of the project
benefits as there are lots of opportunities to improve the sterile
bottom. This would be in keeping with both the RAP and
Hamilton Conservation policies. It was suggested that trees from
areas in the city could be used as structure for fish habitat.
Macassa Bay was identified as an area of focus for fish habitat
improvement.
Opportunities to add fish habitat have been included where
appropriate, including within Macassa Bay.
There is a small scale infill that may occur at the Police Marine
unit to fill in the slips under the existing building. The DFO
representative indicated that based on the scale of this work an
authorization would not be required for this and other shoreline
works discussed.
Comment noted.
It was noted that the proposed works will require approval from
the Conservation Authority.
Comment noted.
February 23,
2012 – Meeting
with Waterfront
Trust
Is computer modeling technology sufficient to model breakwaters
or is a physical model required?
Yes, computer model is sufficient for this project.
The Waterfront Trust concept did not look at specific dock layout;
only considered connection to the shore and overall capacity. It is
noted that the dock layout is sensitive and graphics should show
the connection points and docks as they have been shown in the
past or be clearly marked as conceptual.
It was agreed to show the dock layouts that had been shown at
earlier Public Information Centres during the development of
the Hamilton West Harbour Waterfront Recreation Master
Plan as well as include a note that these dock layouts are
conceptual.
It was suggested that using the Haida as a breakwater be
considered.
There are significant challenges associated with using ships as
breakwaters. This option will not be considered.
It was noted that the Hamilton Yacht Club had suggested that the
breakwater connect to the shore. This was presented as a way to
increase the water access.
Connecting to shore would limit boat access into the harbour
and limit ability to move the breakwater.
Hamilton West Harbour Shoreline and Breakwater Class Environmental Assessment: Environmental Study Report
April 17, 2013
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Date Comment Response
The location of the breakwater was discussed. It was indicated
that we will look at both the long term placement as well as the
option to position the breakwater closer and then move the
breakwater when the marina expands.
An assessment of potential wave generation between the
breakwater location and moored boats was undertaken to
determine the amount of open water that could exist between
the docks and marina at this location. The results of this
assessment indicate that at the time of installation there should
be no more than 100 meters of open water between the
breakwater and the floating docks.
To determine the final breakwater layout and location, the
number of docks and approximate configuration must be
confirmed. It is recommended that a final decision regarding
the location of the breakwaters should be made at the time of
final design and contract award.
There was discussion on whether there should be tie offs on the
breakwater and whether access would be allowed.
This is a decision that the City will make at a later date.
Can the old breakwater be used in Macassa Bay?
The existing wave break could be used to reduce waves in
Macassa Bay but there will still be limitations.
A review of wave conditions indicates that waves reaching the
mouth of the Macassa Bay are smaller in magnitude than in
the main basin. Our analysis indicates that waves just reach
the upper limit of acceptable range. The existing floating
breakwater, if relocated, is expected to reduce waves below
the upper limit and provide more suitable mooring conditions.
It is likely that only the shorter eastern breakwater,
approximately 116 m long, would be required at this location.
The exact length and positioning can be confirmed during
detailed design. The condition of the existing breakwater
must also be considered when re-deployment is being
evaluated. The Condition Review Report (Riggs, 2011)
indicates some maintenance is required and there is only half
the remaining design life.
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Date Comment Response
The following points of clarification were made regarding the
Waterfront Concept:
the sailing school area will not be publically accessible. The
sailing school has a design for a new building;
slips need to be maintained in the Shed building;
The Police Marine building will be replaced and slips do not
need to be retained. Minor infill in this area may be needed to
straighten out the shoreline once the slips are removed;
The basin at the Police Marine unit – the pier to the west needs
to be solid; the pier to the east can be open under the decking
to allow for fish habitat;
In Macassa Bay, the intention is for a subtle softening of the
shoreline. Could put a wetland on the land side of the trail to
open up an old marshy area. However, need to recognize that
this is a very narrow corridor;
Waterfront Trust has two key principles: no infill and
increased public access to shoreline.
This information was incorporated into the EA where
appropriate. It was noted at the PIC that the wetland is not part
of the EA, and that the EA will address the shoreline only.
Transport Canada
(email dated
August 14, 2012)
Transport Canada is responsible for administration of the
Navigable Waters Protection Act which prohibits the
construction or placement of any “works” in navigable waters
without first obtaining approval. If any of the related project
undertakings cross or affect a potentially navigable waterway,
the proponent should prepare and submit an application in
accordance with the requirements as outlined in the Application
Guide and Form.
We anticipate that the proposed new breakwater will require
NWPA approval. An application will be submitted following
completion of the Class Environmental Assessment.
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Date Comment Response
Ministry of
Natural
Resources (email
dated November
29, 2011)
Of the three species of turtles listed as protected in the Natural
Heritage Information Centre database the 2 threatened have
species protection under section 9 of the Endangered Species Act
(ESA) and the special concern species does not.
Under the ESA none of the species have habitat protection Under
the Provincial Policy Statement these species may have significant
wildlife habitat protection, if the City of Hamilton has deemed
Hamilton Harbour to be so, for any or all of these species.
Species protection under the ESA means a person cannot kill,
harm, harass, possess, transport, buy, sell, trade the species,
without an authorization under the ESA. An authorization to
violate section g of the ESA for protection or recovery of the
species is a 17 2(b) permit. An authorization is also provided for
projects for which it is not the protection or recovery of the
species, but the activity will provide an overall benefit to the
species. This is a 17 2(c) permit. This permit has other test, such as
avoidance, mitigation and the activity will not jeopardize the
recovery of the species in Ontario.
Based consultation with regulatory agencies and
characterization of the study area though various field studies,
it has been determined that no significant natural features or
species protected under the Ontario Endangered Species Act,
2007 or federal Species at Risk Act will be impacted.
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7.0 SHORELINE IMPROVEMENTS
7.1. Shoreline Alternative Solutions (Class EA Phase 2)
7.1.1. Shoreline Structure Alternative Solutions
Alternative solutions to address shoreline structural conditions were investigated for those areas that were
identified as deficient in the Phase 1 Technical Report and through subsequent underwater investigation.
The deficient areas would be those described in Figure 4.3 as either: 1) “Structural Concerns” (Near end of
Design Life or inadequate for Public Use) or 2) “Structural Competency of Immediate Concern”. A “do-
nothing” option for the areas where these deficiencies occur was not considered a feasible option as
follows:
A lack of suitable shoreline protection structure puts portions of the study area into the erosion
hazard zone. Hamilton Region Conservation Authority (HRCA) cannot issue a permit for new
development for areas within the erosion hazard zone. Thus, a “do-nothing” option would greatly
restrict the potential area of development under the plan as only areas outside the erosion hazard
could be developed.
Portions of the shoreline that are now within the areas used by three boating clubs are not in a
condition where safe public access can be allowed. There is evidence of ongoing significant
settlement of the shoreline structures and adjacent areas and repair work that was completed in the
past. There are uneven surfaces within the walkway areas and the shore structures that are not
consistent with normal public park elements. These parts of the shoreline are not suitable to be
opened up for public access.
The deficiencies can be corrected by either repairing the shoreline structure or by replacing the structure.
7.1.1.1. Shoreline Structure Evaluation and Preferred Solution
The evaluation of shoreline improvement solutions is presented in Table 7.1
at the end of this section and discussed below.
Both repairs and replacement provide an opportunity to enhance the aquatic
environment and are expected to have similar impacts on the natural
environment during and after construction. The function of the structures,
as is relates to the backshore development, will also be similar. The
decision on the type of shoreline structure improvement is therefore
primarily based on cost and technical feasibility of repairs or replacement.
7.1.2. Shoreline Flood Hazards Alternative Solutions
As noted previously, the crests of the shoreline structures along much of the shoreline are below present
applicable flood standards. From the perspective of flood hazard, this leaves a substantial portion of the
shoreline subject to flooding under design high water levels. Any new development in the backshore
requires a permit from the Hamilton Region Conservation Authority (HRCA) under Ontario Regulation
161/06. A permit cannot be issued unless the flood hazard is addressed. A “do-nothing” option would
greatly restrict the potential area of development under the plan as only areas outside the flood hazard
could be developed.
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As discussed in Section 5, erosion hazard and public safety are also reasons why the option of leaving the
shoreline “as-is” is not appropriate. The “do-nothing” option was not considered to be an acceptable option
for those areas identified as inadequate in the Phase 1 Technical Report and subsequent underwater
assessment and thus is not discussed further.
The following alternative solutions to address potential flood hazards were identified:
Option 1: Raise the shoreline;
Option 2: Raise the edge of the shoreline;
Option 3: Flood proof buildings; and
Option 4: Provide wave protection with offshore breakwater.
Option 1: Raised Shoreline
This option would involve the raising of the shoreline to adequate elevations and reconstruction or
upgrading/reinforcement of the shore protection structures to accommodate the raised shoreline. The work
would include placement of additional fill to raise lands above the flood level. The shore structures would
need to be modified to accommodate the placement of clean fill. The decision on the exact type of action
with respect to the shore structure would be governed by a detailed assessment of the structure at the time
of design.
Option 2: Construction of Raised Edge along the Shoreline
This option involves raising the edge of the shoreline to prevent wave overtopping. It does not involve the
raising or filling of the backshore areas. The work would involve the construction of walls along the edge
or near the edge of the shoreline. These wall structures could provide secondary function such as a seat
wall or railing depending on their height. The height of the wall in each reach would vary depending on
the wave exposure and the elevation of existing shoreline edge. The construction of such a seawall on top
of a repaired shoreline structure or as part of a reconstructed seawall is technically feasible.
The raised edge could be also constructed as a secondary wall set some distance back of the primary shore
protection structure. This would require that the surface between the two walls would need to be
constructed of non-erodible material. Depending on the amount of overtopping that would occur, access to
part of the site may need to be controlled during extreme storm events.
The analysis of potential wave uprush documented in the in Phase 1 report indicates that wall height would
vary from as low as 0.5 m to as much as 1.5 meters. The construction of the raised edge would also
necessitate modifications to the backshore drainage, as the sheet flow over the edge drainage that exists in
parts of the site would no longer be possible. The raised edge does not provide any protection for the
backshore facilities where they are located below the instantaneous water level as water may rise through
the storm sewer system.
Option 3: Flood Proofing of the Buildings
This option would involve the wet flood proofing of all existing building and dry flood proofing of all new
building to ensure that no damage occurs as a result of flooding associated with Lake Ontario. Finish floor
elevations of existing buildings are, with the exception of a portion of the RHYC above the 1: 100 years
instantaneous water level (76.0 m). The flood proofing requirements are therefore limited to modifications
of the exterior walls to prevent water from penetrating the wall. The actual level of flooding would depend
on the wave uprush on the wall of the building structure, which is dependent on the distance back from the
water’s edge and the type of surface finish and grade of the land between the building the water’s edge.
This option may also require entrance doors be located on sides of the buildings away from direct wave
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attack. This option assumes that the flood proofing requirement of the existing building would be
relatively minor and readily achieved.
Flood proofing of new buildings can be achieved in a number of ways. As much as possible, new building
would need to be located outside of the wave uprush area. The extent of wave flood penetration into the
backshore would need to be determined based on the actual backshore grading. Where buildings must be
located within the wave uprush area, the building ground floor and mechanical and electrical components
of the building would be located above the wave uprush elevation. Lower parts of the building would be
designed using materials that are water resistant.
Option 4: Wave Protection by Breakwater
This option involves the reduction of the wave uprush by constructing offshore breakwaters to reduce wave
activity at the shore and therefore reducing the wave uprush. Most of the shoreline is above the 1:100 years
instantaneous water level and the flood hazard is associated with wave uprush. Breakwaters can be either
fixed or floating. A more detailed discussion of the types of breakwaters associated with the marina
(including differences between floating and fixed breakwaters) is provided in the next section of the report.
In this section, the focus is on the function of an offshore breakwater as it relates to on-shore flooding.
The use of permanent or fixed breakwater structures for the reduction of wave activity and therefore wave
uprush at the shore is considered standard practice. However, the consideration of reduction of hazard due
to wave activity behind a movable floating structure, as it relates to shoreline hazard regulations is not
common. This option was discussed with the staff of Hamilton Region Conservation Authority and was
found to be a feasible option to consider.
The construction of an offshore breakwater can reduce the wave height substantially along the shore. It is
feasible to reduce wave heights at the shore to less than 0.3 m. (suggested limit for boat mooring areas),
thus the limit of the wave uprush is reduced to approximately 76.5 m or so, depending on the details of the
shoreline structures. The capital cost of the breakwater is considered high. For this reason, it is suggested
that the use of breakwaters to reduce shoreline flood hazard is considered only in areas where protection of
boat mooring areas is also required.
7.1.2.1. Shoreline Flood Hazard Evaluation and Preferred Solution
A detailed evaluation matrix was completed showing the advantages and disadvantages for each alternative
based on four principal evaluation criteria groups:
Natural environment;
Socio economic and cultural environmental considerations;
Technical considerations; and
Relative cost considerations.
This evaluation matrix is provided in Table 7.2 at the end of this section and further discussed below based
on the above criteria groups.
Natural Environment: The difference between the alternatives from a natural environment perspective is
relatively minimal as all alternatives provide erosion protection; involve limited impact on water quality
and habitat. The only exception to this is a fixed breakwater which could impact water circulation within
the harbour and marina as well as result in possible fish habitat impacts.
Socio-Economic and Cultural Environment: Option 1 – Raised Shoreline has significant impacts on the
existing waterfront recreational and commercial facilities and is considered least preferred for this criteria
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group. It could alter the surface drainage patterns, raise land higher than the existing buildings or cause the
need to reconstruct existing building and increase loads on buried services. All other alternatives are
considered relatively equal from the socio-economic perspective as they all provide some measure of
protection to the shore and/or buildings providing opportunities to enhance shore amenities and improve
public safety.
Technical: For many of the technical criteria including flexibility, potential to impact utilities,
constructability, the four options are similar. For the criterion “level of protection provided”, all four
alternatives provide a measure of flood protection. However, Option 1 – Raised Shoreline and Option 4 –
Breakwater provided the best protection from flooding and are considered preferred for this criteria group.
Cost: Option 1 – Raised Shoreline and Option 4 – Breakwater are the highest cost alternatives.
Constructing a raised edge (Option 2) is anticipated to range from a moderate to high cost and Flood
Proofing buildings (Option 3) is considered to be low cost.
The preferred solution to reduce flood hazard is a comprehensive approach that considers a combination of
raised edge along the shoreline, flood proofing of buildings and a breakwater. The option of raising the
shoreline (Option 1) was considered to be less preferred overall given its significant impact and relatively
high cost.
Given the high cost of a breakwater, this flood reduction method is only being considered for the main
basin where protection is also required for boat docks. Further information on the main basin breakwater
can be found in section 8.0 of this report.
As much as possible, when shore structures are being replaced or repaired, the crest of the structure should
be extended to above the 1:100 years design high water level of 76.0 m. Preferably, the crest of the
structure should be extended above the wave uprush elevation as established in a detailed design process.
Where this is not feasible, the crest of the seawall should be set above 76.3 m and a secondary wall, located
some distance back, should extend high enough to prevent backshore flooding. The location of the
secondary wall will need to be determined to accommodate site development features. For example,
locating the secondary wall behind the waterfront walk would be one possible scenario. Flood proofing of
the existing buildings, where required, should be implemented in areas where seawalls cannot be
incorporated into the waterfront design concept. New buildings should be located above flood hazard.
The shoreline improvements proposed are considered Schedule B projects under the Municipal Class EA.
This section documents the design concepts prepared for the proposed improvements.
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Table 7.1: Evaluation of Shoreline Structure Improvement Solutions
Evaluation Criteria Option 1: Repair the Existing Shoreline Option 2: Replace the Shoreline
Natural Environment
Opportunity to naturalize
the shoreline and improve
fish habitat.
Both alternatives present opportunities to
improve the shoreline and provide more natural
habitat.
Both alternatives present opportunities to improve the
shoreline and provide more natural habitat.
Potential for impact to
aquatic or terrestrial habitat
during construction.
This alternative may have some impact on the
existing habitat depending on the nature of the
repair. In both cases, habitat disruption would be
mitigated through improved shoreline.
This alternative will likely involve more disruption to habitat
as construction is expected to be more significant. In both
cases, habitat disruption would be mitigated through improved
shoreline.
Potential for water quality
improvement.
Both alternatives will have minimal impact on
water quality.
Both alternatives will have minimal impact on water quality.
Impact on Erosion. Both alternatives will improve the shoreline and
minimize erosion impacts.
Both alternatives will improve the shoreline and minimize
erosion impacts.
Natural Environment
Summary
Most of the Hamilton West Harbour provides good fish habitat including Bass nesting areas, as well as good
areas for urban fishing. Any construction associated with repair or replace options has the potential to impact
habitat. However, with proper mitigation, potential construction impacts can be minimized. Repair or
replacement of the shoreline walls can include overall improvements to the shoreline and fish habitat thus
resulting in no overall change or perhaps improvement to the shoreline from a natural environment
perspective. Thus, either of the alternatives is considered acceptable.
Socio-Economic and Cultural Environment
Potential for impacts on
waterfront recreational or
commercial facilities.
Both alternatives will improve the shoreline
without negative impacts on the existing
facilities.
Both alternatives will improve the shoreline without negative
impacts on the existing facilities.
Opportunity for enhance-
ment of waterfront
recreational or commercial
facilities/ amenities.
Both alternatives will improve the shoreline
allowing for enhancement of facilities/amenities.
Both alternatives will improve the shoreline allowing for
enhancement of facilities/amenities.
Potential for impact on
public safety.
Both alternatives will improve safety of the
shoreline.
Both alternatives will improve safety of the shoreline.
Potential to impact cultural
heritage (archaeological
resources or built heritage
and cultural landscapes)
and/or treaty rights.
Neither alternative is anticipated to impact
cultural heritage or treaty rights.
Neither alternative is anticipated to impact cultural heritage or
treaty rights.
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Evaluation Criteria Option 1: Repair the Existing Shoreline Option 2: Replace the Shoreline
Impact on Navigability. Neither alternative will impact navigability. Neither alternative will impact navigability.
Socio-Economic and
Cultural Summary
Both alternatives will improve waterfront opportunities and safety. Neither is anticipated to have impacts on
cultural heritage or navigability.
Technical
Structural integrity. The repair alternative is appropriate when there
is structural integrity remaining in the existing
shorewall.
The replace alternative is appropriate when the structural
integrity of the shorewall is not sufficient to remain in the
longer term.
Level of protection
provided.
Both alternatives would be designed to provide
the required level of protection.
Both alternatives would be designed to provide the required
level of protection.
Design life/maintenance
requirement.
Both alternatives would be designed to provide a
reasonable design life. Maintenance may be
slightly higher on a repaired structure compared
to a new structure.
Both alternatives would be designed to provide a reasonable
design life. Maintenance may be slightly higher on a repaired
structure compared to a new structure.
Potential for contamination
issues.
Both alternatives have some potential to
encounter contamination as much of the
shoreline is constructed from unknown fill.
Testing of the soils will be undertaken and
appropriate management should contamination
be uncovered.
Both alternatives have some potential to encounter
contamination as much of the shoreline is constructed from
unknown fill. Testing of the soils will be undertaken and
appropriate management should contamination be uncovered.
Flexibility Both alternatives provide flexibility. Both alternatives provide flexibility.
Potential impacts on utilities Neither alternative is anticipated to impact
utilities.
Neither alternative is anticipated to impact utilities.
Constructability This alternative can be constructed provided
there is structural integrity remaining in the
existing shorewall.
A replacement alternative can be constructed.
Technical Summary Both repair and replace are reasonable solutions. The preference for one over the other will need to be based
on the structural integrity of the existing shoreline structure.
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Evaluation Criteria Option 1: Repair the Existing Shoreline Option 2: Replace the Shoreline
Cost
Relative cost differences. The cost to repair the shoreline would likely be
less than to replace however, the repair option is
only applicable when there is structural integrity
in the existing structure.
The cost to replace the shoreline would likely be more
expensive than to repair however, the replacement option is
necessary when the structural integrity of the shoreline is not
sufficient to allow for repair.
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Table 7.2: Evaluation of Alternative Flood Hazard Improvement Solutions
Evaluation Criteria
Option 1:
Raised Shoreline
Option 2:
Construct Raised
Edge along
Shoreline
Option 3: Flood
Proof Buildings
Option 4:
Breakwater
Natural
Environment
Opportunity to
naturalize the
shoreline and
improve fish habitat
None of the
alternatives impede
the opportunity to
naturalize the
shoreline and
improve fish
habitat.
None of the
alternatives impede
the opportunity to
naturalize the
shoreline and
improve fish
habitat.
None of the
alternatives impede
the opportunity to
naturalize the
shoreline and
improve fish
habitat.
None of the
alternatives
impede the
opportunity to
naturalize the
shoreline and
improve fish
habitat.
Potential for impact
to aquatic or
terrestrial habitat
during construction
Construction will
not impact
underwater habitat.
Due to proximity
to the edge there is
some potential for
temporary impacts
(e.g. spills).
Construction will
not impact
underwater habitat.
Due to proximity
to the edge there is
some potential for
temporary impacts
(e.g. spills).
Construction will
not impact
underwater habitat.
Due to proximity
to the edge there is
some potential for
temporary impacts
(e.g. spills).
Construction will
temporarily
impact habitat
however this can
be mitigated. It
is also noted that
depending on the
type of
breakwater (i.e.
floating or fixed)
there will be an
area of fish
habitat
permanently
impacted.
Potential for water
quality
improvement.
Construction is out
of the water and
thus there is
limited potential
for impact on water
quality assuming
run-off is managed.
Construction is out
of the water and
thus there is
limited potential
for impact on water
quality assuming
run-off is managed.
Construction is out
of the water and
thus there is
limited potential
for impact on water
quality assuming
run-off is managed.
Construction
involves
materials on the
lakebed which
has the potential
to stir up
sediments on the
bottom. This is a
temporary
situation during
construction only.
Fixed breakwater
has potential to
impact water
circulation in the
harbour and
marina.
Impact on Erosion. All of the
alternatives
provide protection
from wave action
All of the
alternatives
provide protection
from wave action
All of the
alternatives
provide protection
from wave action
All of the
alternatives
provide
protection from
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Evaluation Criteria
Option 1:
Raised Shoreline
Option 2:
Construct Raised
Edge along
Shoreline
Option 3: Flood
Proof Buildings
Option 4:
Breakwater
and erosion
provided they are
constructed in
conjunction with
appropriate
shoreline
treatment.
and erosion
provided they are
constructed in
conjunction with
appropriate
shoreline
treatment.
and erosion
provided they are
constructed in
conjunction with
appropriate
shoreline
treatment.
wave action and
erosion provided
they are
constructed in
conjunction with
appropriate
shoreline
treatment.
Natural
Environment
Summary
The differences between the alternatives from the natural environment
perspective are relatively minimal except that a fixed breakwater may impact
water circulation. There is potential for impacts during construction, these
impacts can be mitigated through design and appropriate construction practices
including spills management and erosion and sediment control.
Socio-Economic and Environment
Potential for impacts
on waterfront
recreational or
commercial
facilities.
This alternative
will have the
greatest impact on
all existing
shoreline facilities
requiring
reconstruction in
many instances.
The remaining
alternatives will
have minimal
impact on the
existing facilities.
The remaining
alternatives will
have minimal
impact on the
existing facilities.
The remaining
alternatives will
have minimal
impact on the
existing facilities.
Opportunity for
enhancement of
waterfront
recreational or
commercial
facilities/ amenities.
All alternatives
involve
improvement to the
protection of the
land and/or water
and thus all
provide
opportunities for
enhancement of
amenities.
All alternatives
involve
improvement to the
protection of the
land and/or water
and thus all
provide
opportunities for
enhancement of
amenities.
All alternatives
involve
improvement to the
protection of the
land and/or water
and thus all
provide
opportunities for
enhancement of
amenities.
All alternatives
involve
improvement to
the protection of
the land and/or
water and thus all
provide
opportunities for
enhancement of
amenities.
Opportunity to
improve safety.
All alternatives
involve
improvement to the
protection of the
land and/or water
and thus all
provide safety
improvement.
All alternatives
involve
improvement to the
protection of the
land and/or water
and thus all
provide safety
improvement.
All alternatives
involve
improvement to the
protection of the
land and/or water
and thus all
provide safety
improvement.
All alternatives
involve
improvement to
the protection of
the land and/or
water and thus all
provide safety
improvement.
Potential to impact
cultural heritage
(archaeological
resources or built
heritage and cultural
landscapes) and/or
treaty rights.
Minimal impact on
cultural heritage or
treaty rights.
Minimal impact on
cultural heritage or
treaty rights.
Minimal impact on
cultural heritage or
treaty rights.
Minimal impact
on cultural
heritage or treaty
rights.
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Evaluation Criteria
Option 1:
Raised Shoreline
Option 2:
Construct Raised
Edge along
Shoreline
Option 3: Flood
Proof Buildings
Option 4:
Breakwater
Impact on
Navigability.
No impact on
navigability.
No impact on
navigability.
No impact on
navigability.
This alternative
has potential to
impact
navigability but
can be
constructed such
that the impact is
neutral.
Socio-Economic
and Cultural
Environment
Summary
Raising the existing shoreline has significant impacts on the existing waterfront
and associated on-shore facilities and is least preferred. The remaining
alternatives all provide some measure of protection to existing facilities and
provide opportunities for enhancement.
Technical
Structural integrity. All alternatives can
be designed to
provide structural
integrity.
All alternatives can
be designed to
provide structural
integrity.
All alternatives can
be designed to
provide structural
integrity.
All alternatives
can be designed
to provide
structural
integrity.
Level of protection
provided.
All alternatives
will provide a
measure of flood
protection. This
alternative
provides the
greatest flood
protection to the
shore but no
protection for the
water facilities and
boats.
All alternatives
will provide a
measure of flood
protection. This
alternative
provides some
flood protection to
the shore but no
protection for the
water facilities and
boats.
All alternatives
will provide a
measure of flood
protection. This
alternative
provides some
flood protection for
the buildings but
no protection for
the water facilities
and boats.
All alternatives
will provide a
measure of flood
protection. This
alternative
provides the best
protection to the
water facilities
and boats as well
as providing
some protection
for the shore.
Design life/
Maintenance
requirements.
All alternatives
have a reasonable
design life.
All alternatives
have a reasonable
design life.
All alternatives
have a reasonable
design life.
All alternatives
have a reasonable
design life. This
alternative has
the greatest
maintenance
requirements
with repairs often
required after
large storms.
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Evaluation Criteria
Option 1:
Raised Shoreline
Option 2:
Construct Raised
Edge along
Shoreline
Option 3: Flood
Proof Buildings
Option 4:
Breakwater
Potential for
contamination
issues.
Any construction
in the vicinity of
the waterfront has
some potential to
encounter
contamination
issues as much of
the waterfront is
unknown fill.
None of the
alternatives involve
significant
excavation so any
impact is
anticipated to be
minimal. Soils
will be identified
prior to
construction and
all precautions will
be taken to
minimize impacts.
Any construction
in the vicinity of
the waterfront has
some potential to
encounter
contamination
issues as much of
the waterfront is
unknown fill.
None of the
alternatives involve
significant
excavation so any
impact is
anticipated to be
minimal. Soils
will be identified
prior to
construction and
all precautions will
be taken to
minimize impacts.
Any construction
in the vicinity of
the waterfront has
some potential to
encounter
contamination
issues as much of
the waterfront is
unknown fill.
None of the
alternatives involve
significant
excavation so any
impact is
anticipated to be
minimal. Soils
will be identified
prior to
construction and
all precautions will
be taken to
minimize impacts.
Any construction
in the vicinity of
the waterfront has
some potential to
encounter
contamination
issues as much of
the waterfront is
unknown fill.
None of the
alternatives
involve
significant
excavation so any
impact is
anticipated to be
minimal. This
alternative has
the potential to
encounter
contaminated
sediments.
Potential
contamination
will be identified
prior to
construction and
all precautions
will be taken to
minimize
impacts.
Flexibility All alternatives
provide flexibility;
especially when
considered in
combination.
All alternatives
provide flexibility;
especially when
considered in
combination.
All alternatives
provide flexibility;
especially when
considered in
combination.
All alternatives
provide
flexibility;
especially when
considered in
combination.
Potential impacts on
utilities
Unlikely to impact
utilities.
Unlikely to impact
utilities as
construction effort
is minimal.
Unlikely to impact
utilities as
construction effort
is minimal.
Unlikely to
impact utilities
due to the
location within
the water.
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Evaluation Criteria
Option 1:
Raised Shoreline
Option 2:
Construct Raised
Edge along
Shoreline
Option 3: Flood
Proof Buildings
Option 4:
Breakwater
Constructability Relatively easy to
construct although
may require
staging with
relocation/
reconstruction of
existing buildings.
Relatively easy to
construct.
Relatively easy to
construct.
Relatively easy to
construct.
Technical Summary All alternatives are technically viable. Raising the shoreline and improving the
breakwater provides the best protection. The other two alternatives still do
provide protection with minimal disadvantages.
Cost
Relative cost
differences.
High Cost Moderate to high
cost
Moderate cost High cost
7.2. Shoreline Design Concepts
The preferred shoreline improvements involve making repairs to some sections of the existing shoreline
structure and replacing others. Figure 4.3 indicates places where improvement is necessary. This section
provides further information on the design of the proposed improvements. The design concepts for the
shoreline improvements all maintain the existing alignment and increase the height of the shore to 76.3m
(76.5 on James St. Pier). The following points are noted about the areas to be replaced:
Steel sheet pile structures are being repaired only if it was determined that steel sheet pile has a
remaining design life of 50 years based on normal rusting rates.
Structures within buildings (except the police building) are proposed to be replaced when the
buildings are repaired / reconstructed.
Most of the repairs are to areas where there is existing sheet pile along the shore. Areas of rock
shore line that are identified for repair or replacement mostly involve raising the shore elevation to
76.3 m.
Replacement of structures is being undertaken where existing steel sheet pile walls do not provide
50 year design life or existing gravity structures do not meet normal engineering and public safety
requirements.
The shoreline has been divided into a six reaches in the main basin and one reach in Macassa Bay as
described below and shown in Figure 7.2 and Figure 7.3. Figure 7.1 depicts all reaches and sub-reaches.
Scale 1:5000
West Harbour Waterfront Recreation Master Plan (WHWRMP) – Class EA All Phases
SITE PLAN
Reaches and Sub-Reach Location Plan
LEGEND:
- REACH
- SUB-REACH
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Macassa Bay
Reach 8 represents the area in the west part of the harbour that is presently used by Macassa Bay Yacht
Club, MacDonald Marine Services and the Hamilton Bay Sailing Club. It includes approximately 630 m
of shoreline. Reach 8 is subdivided into five sub-reaches. Improvements are proposed for approximately
470 m of shoreline within this reach.
Main Basin
The shoreline of the main basin is divided into six reaches. Reach 1 starts at the northeast part of the main
basin and numbering continues in a clockwise direction along the shore of the basin.
Figure 7.3: Shoreline Reaches – Main Basin
Figure 7.2: Shoreline Reaches – Macassa Bay
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Reach 1 represents an area in the northeast part of the main basin. The shoreline in the reach is
approximately 255 m long. The shore includes the south side of Pier 8. The reach is subdivided
into three sub-reaches. Portions of the shoreline within the reach were reviewed during the
underwater inspection noted previously. Improvements are proposed for approximately 115 m of
shoreline within this reach.
Reach 2 represents an area in the east part of the basin. The shoreline in the reach is approximately
227 m long not including the timber pier at the north end of the reach. The shore includes a semi-
enclosed area fronting the present police marine unit dock/building. It also includes the north end
of the shore along the east side of the James Street basin. The reach is subdivided into five sub-
reaches. Portions of the shoreline within the reach were reviewed during the underwater inspection
noted previously. Improvements are proposed for all of the shoreline within this reach.
Reach 3 includes the south east part of the main basin. The shoreline in the reach is approximately
485 m long. This reach is divided into seven sub-reaches. The shore includes a basin fronting
James Street, the adjacent pier on the west side and most of the shoreline now utilized by the HPA
marina operations. Portions of the shoreline within the reach were reviewed during the underwater
inspection noted previously. Improvements are proposed for all of shoreline within this reach.
However, maintaining the shore function is sub-reaches 3.4 to 3.6 requires the shoreline remain
unaltered.
Reach 4 includes shores on all sides of a small basin on the east side of the RHYC. The basin is
used for sailing school launches. The shoreline in the reach is approximately 240 m long. The
reach is subdivided into five sub-reaches. Portions of the shoreline within the reach were reviewed
during the underwater inspection noted previously. Improvements are proposed for all of shoreline
within this reach. However, maintaining the shore function is sub-reaches 4.3 and 4.4 requires the
shoreline remain unaltered.
Reach 5 includes shore along the south and west shores of the headland fronting the RHYC
building and boat storage area. The shoreline in the reach is approximately 156 m long. The reach
is subdivided into three sub-reaches. Improvements are proposed for all of shoreline within this
reach.
The shoreline in Reach 6 was reconstructed as part of site redevelopment by the City and no work
is required. Therefore, no discussion of Reach 6 is provided. 2
Table 7.3 describes the current condition, proposed design concept and fish habitat opportunity for each
sub reach along the existing shoreline. Cross-sections of the proposed improvements can be found in
Appendix C.
2 Shoreline conditions were initially shown at the public information centre held in June 2008. Since that time conditions were
updated based on both a visual assessment and underwater assessment. While Reach 6 was initially identified as needing repair, it
was later confirmed that minor maintenance is all that was required.
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Table 7.3: Shoreline Characteristics and Proposed Improvements by Reach
Sub-
Reach
Description Current Condition Proposed Design Concept Fish Habitat
Opportunity3
Macassa Bay Reach 8
8.1 This sub-reach includes the
north part of the east shore
of the bay protected with a
stone revetment.
No structural concerns were
identified during the above water
review.
No improvements are required. No proposed fish habitat
enhancements.
8.2 This sub-reach includes the
south part of the east shore
of the bay protected with an
armour stone wall.
No structural concerns identified
during above water review.
No improvements are required. No proposed fish habitat
enhancements.
8.3 This sub-reach includes the
south shore around the
launch ramp area protected
by armour stone walls,
concrete launch ramp and
associated dock structure.
No structural concerns identified
during above water review.
Crest of structure below design
flood level.
Improvement proposed consists
of raising the crest of the
existing armour stone wall by
one stone to an elevation of
approximately 76.3 m.
No proposed fish habitat
enhancements.
8.4 This sub-reach includes the
central south shore of the
bay within the area now used
by MacDonald Marine
Services. Shore protection
consists mainly of concrete
block walls.
Wall in various states of disrepair
and failure. Structural concerns
were identified during the above
water review.
Shore protection alternatives
are determined by the
backshore uses. First
alternative for shore protection
consists of an armour stone
wall similar to sub-reach 8.2.
Second alternative consists of a
gently sloping shore (slopes at
4h:1v to 6h:1v) covered with
randomly placed boulders,
cobbles, cobble and soil
mixture. The shore is to be
planted with various plant
materials, both below and
The first alternative has
limited opportunity for fish
habitat enhancement.
The second alternative
provides the greatest
diversity of habitat features
(such as, boulders, cobble,
soil and gravel mix as well
as plant material) for the fish
assemblage in the area.
3 Fish habitat opportunities have been considered only in areas where other in-water improvements are being made.
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Sub-
Reach
Description Current Condition Proposed Design Concept Fish Habitat
Opportunity3
above water.
Varying the type of shore
protection will create an
undulating shoreline.
Alignment of the shore and
extent of each type of
protection has not been
established and will need to be
finalized at the time of detailed
site plan preparation.
A portion of the shore within
this sub-reach is required to
accommodate boating activities
and docking and will be
protected with a steel sheet pile
wall.
8.5 This sub-reach includes the
western part of the south
shore within the area now
used by Macassa Bay Yacht
Club. Shore protection is
composed of various
structures including concrete
block walls and timber walls.
Most structures show signs of
failure and excessive settlement.
Insufficient space on land exists to
accommodate existing/proposed
land uses and public access to the
waterfront.
Shoreline protection involves a
steel sheet pile wall with or
without a lakeside boardwalk
supported on piles.
The steel sheet pile wall with
lakeside boardwalk would be
used where insufficient space
exists on land to accommodate
both existing/proposed land
uses and public access to the
waterfront.
Aquatic habitat features and
improvements, such as
boulders and other structural
habitat, will be incorporated
along the toe of the structure
wherever possible.
A lakeside boardwalk would
provide added shade for fish
habitat.
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Sub-
Reach
Description Current Condition Proposed Design Concept Fish Habitat
Opportunity3
Main Basin - Reach 1
1.1 This sub-reach includes the
south shore of Pier 8
protected with a concrete
capped steel sheet pile wall
with a rip rap revetment.
No structural concerns identified
during above water review.
No improvements required No proposed fish habitat
enhancements.
1.2 This sub-reach includes the
shore west of Discovery
Drive protected by ‘H’ piles
with steel lagging and steel
sheet pile wall.
No structural concerns identified
during above and below water
review. Structure found to have 50
year design life remaining.
Crest of structure below design
flood level.
Improvement consists of
raising the crest elevation of the
wall by provision of a
reinforced concrete cap.
No proposed fish habitat
enhancements.
1.3 This sub-reach includes the
shore west of Discovery
Drive protected with a rip
rap and rubble revetment.
Minor erosion was noted along
shore protected with scattered
rubble and stone during review.
Crest of revetment below design
flood level.
Improvement consists of
placing additional rip rap to
produce a more stable and
uniform appearance and
provision of armour stone cap
to raise the crest elevation of
the structure.
This is an area identified in
the Waterfront Concept as
an area for urban fishing and
habitat enhancement.
Where possible rip rap of
varying sizes will be used
and gaps filled with gravel
substrate to create a
gravel/rock substrate. Area
will be enhanced with
aquatic vegetation.
Main Basin - Reach 2
2.1 This sub-reach includes the
pier at the north end of the
reach. The pier is
constructed with timber
piles. There is a gap in the
structure approximately 7 m
wide that creates the opening
Structural concerns identified
during above water review
including leaning piles and
weathered timber at the water line.
Improvement consists of
removing the existing timber
pier above elevation 72.2 m
and installing a prefabricated
pedestrian bridge. Bridge
would be founded on piles with
a concrete cap behind proposed
No proposed fish habitat
enhancements.
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Sub-
Reach
Description Current Condition Proposed Design Concept Fish Habitat
Opportunity3
for the basin fronting the
police marine unit
dock/boathouse.
steel sheet pile walls in sub-
reaches 2.2 and 2.5.
2.2 This sub-reach includes the
shore along the east side of
the basin protected by a
timber pile structure.
Structural concerns identified
during above water review
including missing tie rods and
weathered timbers at the
waterline.
Crest of structure below design
flood level.
Improvements consist of
installing a concrete capped
steel sheet pile wall in front of
the existing timber pile wall
and removing the timber piles
above the waterline.
Aquatic habitat features and
improvements, such as
boulders and other structural
habitat, will be incorporated
along the toe of the structure
wherever possible.
2.3 This sub-reach includes the
shore along the south side of
the basin protected by a steel
sheet pile wall.
No structural concerns identified
during above and below water
review. Structure found to have 50
year design life remaining for
future design loading.
There are holes in wall where a
fender was once attached to the
wall.
Crest of wall below design flood
level.
Improvement consists of
raising the crest elevation of the
wall by provision of a
reinforced concrete cap and
repairing holes in the wall.
No proposed fish habitat
enhancements.
2.4 This sub-reach includes the
police marine unit boathouse
constructed on steel sheet
piles.
Structural concerns identified
during above water review. There
are large holes in the steel sheet
piles at the waterline.
Condition of structure of
significant concern and requires
further investigation.
Improvements consist of a
concrete capped steel sheet pile
wall. Alignment of shoreline
and possible infilling will
depend on the future location
of the police marine unit.
Maintenance of the existing
function is likely to require
improvements to the building
foundation and building. These
are not included as part of the
Aquatic habitat features and
improvements, such as
boulders and other structural
habitat, will be incorporated
along the toe of the structure
wherever possible.
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Sub-
Reach
Description Current Condition Proposed Design Concept Fish Habitat
Opportunity3
shoreline improvements.
2.5 This sub-reach includes the
shore along the pier on the
west side of the police
marine unit basin. The north
end of the pier is constructed
with timber piles. The south
end is constructed with steel
sheet piles.
The timber pile pier has been
closed to public access.
Above and below water review
found that the steel sheet pile wall
does not have remaining design
life of 50 years.
Improvements consist of
installing a concrete capped
steel sheet pile wall in front of
the existing timber pile or steel
sheet pile wall and removing
the timber/steel pile above the
water line. The type of surface
treatment will depend on future
use of the structure.
This area is over 4 m deep
and an area with heavy boat
traffic, thus aquatic habitat
enhancement is not
proposed.
Main Basin - Reach 3
3.1 This sub-reach includes the
shore south of the Police
boathouse along the east side
of the James Street basin
protected by a steel sheet
pile wall.
Above and below water review
found that the steel sheet pile wall
does not have a remaining design
life of 50 years.
Crest of wall below design flood
level.
Improvements consist of
installing a concrete capped
steel sheet pile wall in front of
the existing wall and removing
the existing wall above the
water line.
This area is over 4 m deep
and an area with heavy boat
traffic, thus aquatic habitat
enhancement is not
proposed.
3.2 This sub-reach includes the
shore along the south end of
the James Street basin
protected by a steel sheet
pile wall and a masonry wall
with a storm sewer outlet.
Above and below review of the
structures found that the walls do
not have a remaining design life
of 50 years.
Improvements consist of
installing a concrete capped
steel sheet pile wall in front of
the existing structures and
removing the existing
structures above the water line.
The new structure will need to
accommodate the existing
outlet.
Aquatic habitat features and
improvements, such as
boulders and other structural
habitat, will be incorporated
along the toe of the structure
wherever possible.
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Sub-
Reach
Description Current Condition Proposed Design Concept Fish Habitat
Opportunity3
3.3 This sub-reach includes the
pier on the west side of the
James Street basin
constructed with steel sheet
piles.
Structural concerns identified
during above water review.
Proposed intensification for this
sub-reach includes new buildings.
Improvements consist of
installing a concrete capped
steel sheet pile wall in front of
the existing wall and removing
the existing wall above the
water line. The type of surface
treatment will depend on the
future use of the pier.
No fish habitat is proposed
to be added as this is an area
of high boat traffic.
3.4 This sub-reach includes
shore east of the HPA haul
out dock. It is protected with
a steel sheet pile wall.
Additional underwater
investigation required during
detailed design work.
Maintenance of the existing
land use along this sub-reach is
likely to require a steel sheet
pile wall. However, the current
function requires the shoreline
remain unaltered.
This area is over 4 m deep
and aquatic habitat
enhancement is not
proposed.
3.5 This sub-reach includes the
shoreline at the HPA haul
out dock. The shore is
protected with steel sheet
pile wall.
Additional underwater
investigation required during
detailed design work.
Maintenance of the existing
land use is likely to require a
steel sheet pile wall. However
the current function requires
the shoreline remain unaltered.
This area is over 4 m deep
and aquatic habitat enhance-
ment is not proposed.
3.6 This sub-reach includes the
shore with covered docks
located west of the haul out
dock. The shore is protected
with a steel sheet pile wall.
Additional underwater
investigation required during
detailed design work.
Maintenance of the existing
land use is likely to require a
steel sheet pile wall. However,
the current function requires
the shoreline remain unaltered.
This area is over 4 m deep
and aquatic habitat enhance-
ment is not proposed.
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Sub-
Reach
Description Current Condition Proposed Design Concept Fish Habitat
Opportunity3
3.7 This sub-reach includes the
shore along the east and
north faces of the service
wharf protected with a steel
sheet pile wall.
Above and below water review
found that the wall does not to
have a remaining design life of 50
years.
Improvements consist of
installing a concrete capped
steel sheet pile wall in front of
the existing wall and removing
the existing wall above the
water line. Improvements
address only the shoreline
protection. Maintenance or
repairs to the gas service
facilities may be required, but
is not included in the scope of
this work.
This area is over 4 m deep
and is an area of high boat
traffic thus, aquatic habitat
enhancement is not
proposed.
Main Basin - Reach 4
4.1 This sub-reach includes
shore along the west and
south side of the service
wharf area protected by a
steel sheet pile wall.
Above and below water review
found that the wall along the west
side of service wharf does not
have a remaining design life of 50
years. The wall along the south
side of the service wharf was
found to have a remaining 50 year
design life.
Improvements consist of
installing a concrete capped
steel sheet pile wall in front of
the existing wall and removing
the existing wall above the
waterline along the west side of
the service wharf (sub-reach
4.1a) and raising the elevation
of the wall by installing a
reinforced concrete cap along
the south side of the service
wharf (sub-reach 4.1b).
No additional fish habitat is
proposed as this area is
entirely within the sailing
school basin.
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Sub-
Reach
Description Current Condition Proposed Design Concept Fish Habitat
Opportunity3
4.2 This sub-reach includes
shore along the east side of
the basin protected by a rip
rap revetment.
The above water review found the
structure to be in good condition.
Crest of structure below design
flood level.
Improvements consist of
raising the crest elevation of the
revetment by placing additional
rip rap stone along the crest of
the revetment.
This would be the only
section within Reach 4 to
propose fish habitat as the
boats will stay away from
rocky shore and the
shoreline isn’t a vertical
wall. The rocky shoreline
provides habitat complexity.
Habitat improvements such
as infilling gaps with gravel
will be incorporated
wherever possible.
4.3 This sub-reach includes
south shore of the basin at
the east end including the
launch ramp. The shore is
protected by a concrete wall
with rip rap revetment.
The above water review found the
structure to be in good condition.
Improvements consist of
raising the crest elevation of the
concrete wall and grading to
maintain the launch ramp
function. The current function
requires that the shoreline
remain unaltered.
No proposed fish habitat
enhancements.
4.4 This sub-reach includes the
shore along the south side of
the basin that covered by the
Royal Hamilton Yacht Club
boathouse/deck. The shore
is protected by a rip
rap/rubble revetment that is
covered by a deck supported
on piles.
Additional underwater
investigation required during
detailed design work.
Maintenance of the existing
function is likely to require a
rip rap revetment with a deck
supported on piles or a steel
sheet pile wall. The current
function requires the shoreline
remain unaltered.
No proposed fish habitat
enhancements.
4.5 Sub-reach includes the shore
along the west side of the
basin protected by a timber
retaining wall.
Above water review found the
wall was in poor condition.
Timber wall is deteriorated.
Improvements consist of
replacement of the timber wall
with a concrete capped steel
sheet pile wall.
No aquatic habitat
improvements are proposed
along the base of this wall to
accommodate intense
boating use in the area.
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Sub-
Reach
Description Current Condition Proposed Design Concept Fish Habitat
Opportunity3
Main Basin - Reach 5
5.1 This sub-reach includes the
shore along the north and
west sides of the headland in
front of the RHYC. The
shore is protected by a
timber retaining wall.
Structural concerns identified
during above water review. The
timber retaining wall is
deteriorated.
Improvements considered two
potential structures. Alternative
designs include steel sheet pile
wall or a steel sheet pile wall
with boardwalk supported on
piles. The seawall and
boardwalk section would be
used where insufficient space
exists on land to accommodate
existing land uses and provide
public access the waterfront.
Both alternatives could
include aquatic habitat
improvements along the
seawall.
Boardwalk design
(alternative 2) will provide
overhanging cover for fish
habitat and areas of
emergent vegetation will
enhance habitat. Rocky
slope with gravel pockets
will provide a diverse mix of
substrate for fish and other
aquatic species.
5.2 This sub-reach includes
shore in front of the RHYC
pool protected by a steel bin
structure with a concrete
deck and rip-rap base.
Structural concerns identified
during above water review. The
steel bin structure is severely
rusted.
Improvements consist of a steel
sheet pile seawall with a
boardwalk supported on piles.
This system is required to
provide public access in the
confined area between the pool
and the shore. Special
considerations will need to be
given to the location of the pool
and the steel sheet pile wall
designed as a cantilever wall or
piles used as anchor instead of
traditional dead man anchors to
accommodate the pool location.
Boardwalk design will
provide overhanging cover
for fish habitat and areas of
emergent vegetation will
enhance habitat. Rocky
slope at the toe of the wall
under the boardwalk with
gravel pockets will provide a
diverse mix of substrate for
fish and other aquatic
species.
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Sub-
Reach
Description Current Condition Proposed Design Concept Fish Habitat
Opportunity3
5.3 This sub-reach includes the
shore in front of the RHYC
parking lot protected by a
rip rap revetment, armour
stone and asphalt pavement
over the graded bank.
Structural concerns identified
during above water review. Minor
erosion was noted along shore.
Improvements consist of a steel
sheet pile wall with boardwalk
supported on piles. This
system is required to provide
public access in a confined area
between the parking area and
the shore.
Boardwalk design will
provide overhanging cover
for fish habitat and areas of
emergent vegetation will
enhance habitat. Rocky
slope at the toe of the wall
under the boardwalk with
gravel pockets will provide a
diverse mix of substrate for
fish and other aquatic
species.
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8.0 BREAKWATER IMPROVEMENTS
8.1. Breakwater Alternative Solutions (Class EA Phase 2)
As discussed in Section 4.3.3, a breakwater reduces on-shore wave activity and assists in the reduction of
on-shore flood hazard. Breakwaters also provide protection to boats moored on off-shore docks. The main
basin is the area housing the greatest number of boats and it is the most open to wave action. This section
of the report specifically addresses the breakwater for the main basin.
8.1.1. Breakwater Alternative Solutions
The alternative solutions must primarily address the wave conditions within the basin. The wave
conditions must be reduced to an acceptable standard. A wave height of less than 0.3 m is generally
considered to be an acceptable wave agitation within a marina basin within the boating season.
Breakwaters must also be able to withstand wave and ice conditions at the site.
A “do-nothing” alternative would continue use of the existing breakwater. Floating breakwaters function
by reducing the wave energy that can be transmitted through and under the structure, thus reducing the
wave height on the back (sheltered) side of the breakwater. The design of a floating breakwater is
primarily governed by wave period. Floating breakwater structures become very inefficient when the
design wave period is exceeded. Continued use of the existing breakwater would provide adequate wave
reduction and protection for the existing mooring basin only up to the design wave period. This design
wave period will be exceeded periodically, as it has been in the past. When exceeded, the docks and boats
will be potentially subject to damage, as has occurred in the past. In addition, the length of the existing
breakwater is not sufficient to allow for future expansion of the marina basin, as envisioned under the
Waterfront Concept Plan. Thus, a “do-nothing” option was not considered further.
Alternative solutions to addressing the wave conditions within the main basin were identified and include:
Option 1: Repair Breakwater;
Option 2: New Breakwater – Fixed;
Option 3: New Breakwater –Floating.
Option 1: Repair Existing Breakwater
A review of the previously completed assessments that were carried out by others after the significant
damage to breakwater and docks in the early 1990s concluded that a replacement of the breakwater rather
than a repair is required. Due to the overall physical limitations of the existing structure, it is anticipated
that it cannot be upgraded to provide adequate wave reduction.
Option 2: New Breakwater – Fixed
A new fixed breakwater could be constructed along the outer perimeter of the expanded basin. Fixed
breakwater refers to structures that are placed on the lake bottom and are statically stable. The most
common type of fixed breakwater on the Great Lakes is a stone structure. Other types of fixed breakwater
could include steel sheet pile caisson, crib structures or H Pile with lagging.
Option 3: New Breakwater –Floating
A new floating breakwater can also be constructed along the perimeter of the expanded basin. Preliminary
assessment of wave climate at the location and review of commercially available floating breakwaters
indicates that suitable floating breakwaters exist. The type of breakwater likely to be utilized is a pontoon
type. These are most commonly concrete structures with integrated flotation systems. Pontoon
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breakwaters can be utilized as walkways or temporary docks. Other types of floating breakwaters can also
be design to provide the required protection.
A floating breakwater can be relocated should future plans for the marina basin size or shape be altered.
The most common type of anchoring system for a floating breakwater for water depths in excess of 10 m is
a concrete block connected to the breakwater with chain or cable. The concrete blocks can readily be
moved.
The interaction of floating breakwaters with ice is difficult to predict and potential for ice damage to a
floating breakwater exists. Potential for ice damage must be assessed based mostly on local experience and
experience of the manufacturer with their particular type of structure and design. Given that an “A” frame
floating breakwater existed at this location for nearly twenty years without notable ice damage suggests
that use of floating breakwater at this site is feasible.
8.1.2. Breakwater Evaluation and Preferred Solution
A detailed evaluation was completed to compare the advantages and disadvantages of each alternative
based on four principal evaluation criteria groups:
Natural environment considerations;
Socio economic and cultural environmental considerations;
Technical considerations; and
Relative cost considerations.
This evaluation if documented in Table 8.1 at the end of this Section and further discussed below based on
the criteria groups noted.
Natural Environment: Both floating breakwater alternatives (Option 1: Repair Existing Breakwater and
Option 3: New Breakwater - Floating) result in minimal impacts to the natural environment. In both cases
work will be required on the anchor system for the floating breakwater however this work is anticipated to
be short term and result in minimal long term disturbance to fish habitat. The fixed breakwater (Option 2)
is placed on the lake bottom and has a greater potential for loss of fish habitat than the floating structure. It
is noted however, that habitat can often be built into the breakwater structure itself. A fixed breakwater
will also impact water circulation within the main basin and water exchange between the main basin and
the Hamilton West Harbour area. The impact on water quality due to the change in circulation pattern
cannot be quantified without detailed modelling. From a natural environment perspective, a floating
breakwater is preferred. There is limited difference in natural environment benefits between Option 1:
Repair Existing Breakwater and Option3: New Breakwater - Floating.
Socio-Economic and Cultural: None of the three alternatives are anticipated to result in negative impacts
on the existing waterfront recreation or commercial facilities, public safety, or cultural heritage.
Regardless of the type of breakwater structure, there is a potential for impact on navigability but all
structures can be designed to minimize impact. From a socio-economic and cultural perspective, all
options are considered similar.
Technical: It is not anticipated that Option 1: Repair Existing Breakwater can result in a structural integrity
that can provide the appropriate level of protection to the main basin. So, from a technical perspective, this
option is least preferred. Considering construction of a new breakwater, a floating structure (Option 3) is
preferred over a fixed structure (Option 2) as it offers greater flexibility for movement to accommodate
changes in the docks within the basin.
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Cost: From a cost perspective, Option 1 – Repair Existing is the lowest cost. Option 2: New Breakwater –
Fixed has the highest cost (approximately $30,000/m) and Option 3 – New Breakwater – Floating has a
moderate cost (approximately $4,000/m). From a cost only perspective Option 1 is preferred.
The preferred option for the main basin breakwater is a new floating breakwater. It offers sufficient level
of protection from wave action with minimal impact on fish habitat and water circulation. It also offers
flexibility to accommodate changes to the docks4 and/or allow for public access and can be constructed for
a moderate cost.
4 The preliminary dock arrangement shown during consultation on this project within the basin is conceptual and was prepared for
the purpose of determining an approximate size of the water area required for the basin and to assist with the general layout and
configuration of the breakwaters. The preliminary dock layout is based on an average boat size of 10 m. The final dock layout will
be determined as the land side configurations are finalized, suitability of dock access points confirmed and operational aspect of the
boating facility confirmed.
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Table 8.1: Evaluation of Breakwater Types
Evaluation Criteria Option 1: Repair
Existing Breakwater
Option 2: New Fixed
Breakwater
Option 3: New Floating
Breakwater
Natural
Environment
Opportunity to
naturalize the
shoreline and improve
fish habitat.
None of the alternatives
impede the opportunity
to naturalize the
shoreline and improve
fish habitat.
None of the alternatives
impede the opportunity to
naturalize the shoreline
and improve fish habitat.
None of the alternatives
impede the opportunity to
naturalize the shoreline
and improve fish habitat.
Potential for impact to
aquatic or terrestrial
habitat during
construction.
May include some
improvement to the
anchor system but
overall low potential for
impact on existing
habitat expected.
Construction of a fixed
breakwater involves
depositing material on the
lake bottom resulting in
high potential for habitat
impact.
Construction of a new
anchor system but overall
low potential for impact
on existing habitat
expected.
Potential for water
quality improvement.
Involves construction
within the water and has
some potential for
impact to water quality
during construction.
Fixed breakwater
involved long
construction period within
the water and has high
potential for impact to
water quality during
construction.
Fixed breakwater will
impact the water
circulation pattern in the
harbour and has potential
to impact water quality in
the marina.
Involves construction
within the water and has
some potential for impact
to water quality during
construction.
Impact on Erosion. All of the alternatives
provide protection from
wave action and erosion
provided they are
constructed in
conjunction with
appropriate shoreline
treatment.
All of the alternatives
provide protection from
wave action and erosion
provided they are
constructed in
conjunction with
appropriate shoreline
treatment.
All of the alternatives
provide protection from
wave action and erosion
provided they are
constructed in
conjunction with
appropriate shoreline
treatment.
Natural Environment
Summary
Both floating breakwater alternatives (repair existing or replace with new
floating breakwater) result in minimal impacts to the natural environment
compared to the fixed breakwater which has the potential to remove fish habitat
and alter water circulation and possibly water quality in the marina.
Socio-Economic and Cultural Environment
Potential for impacts
on waterfront
recreational or
commercial facilities.
All alternatives will
have minimal impact on
existing shoreline and
on-shore facilities.
All alternatives will have
minimal impact on
existing shoreline and on-
shore facilities.
All alternatives will have
minimal impact on
existing shoreline and on-
shore facilities.
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Evaluation Criteria Option 1: Repair
Existing Breakwater
Option 2: New Fixed
Breakwater
Option 3: New Floating
Breakwater
Opportunity for
enhancement of
waterfront recreational
or commercial
facilities/ amenities.
All alternatives involve
improvement to the
protection of the land
and/or water and thus all
provide opportunities
for enhancement of
amenities.
All alternatives involve
improvement to the
protection of the land
and/or water and thus all
provide opportunities for
enhancement of
amenities. New fixed
breakwater may provide
an opportunity to provide
public access.
All alternatives involve
improvement to the
protection of the land
and/or water and thus all
provide opportunities for
enhancement of
amenities. New floating
breakwater may provide
an opportunity to provide
public access.
Potential for impact on
public safety.
All alternatives involve
improvement to the
protection of the land
and/or water and thus all
provide safety
improvement.
All alternatives involve
improvement to the
protection of the land
and/or water and thus all
provide safety
improvement.
All alternatives involve
improvement to the
protection of the land
and/or water and thus all
provide safety
improvement.
Potential to impact
cultural heritage
(archaeological
resources or built
heritage and cultural
landscapes) and/or
treaty rights.
Minimal impact on
cultural heritage or
treaty rights.
Minimal impact on
cultural heritage or treaty
rights.
Minimal impact on
cultural heritage or treaty
rights.
Impact on
Navigability.
All alternatives have
potential to impact
navigability. Care will
be taken to design the
breakwater to minimize
potential for negative
impact.
All alternatives have
potential to impact
navigability. Care will be
taken to design the
breakwater to minimize
potential for negative
impact.
All alternatives have
potential to impact
navigability. Care will be
taken to design the
breakwater to minimize
potential for negative
impact.
Socio-Economic and
Cultural Environment
Summary
All alternatives are similar in their potential for socio-economic and cultural
environment impact. A new breakwater provides the best opportunity for public
access.
Technical
Structural integrity It is not anticipated that
the existing breakwater
can be repaired to
provide adequate
protection for the
marina.
A new breakwater, fixed
or floating can be
designed to provide
structural integrity.
A new breakwater, fixed
or floating can be
designed to provide
structural integrity.
Level of protection
provided.
It is not anticipated that
the existing breakwater
can be repaired to
provide an appropriate
level of protection.
A new breakwater, fixed
or floating can be
designed to provide an
appropriate level of
protection.
A new breakwater, fixed
or floating can be
designed to provide an
appropriate level of
protection.
Design life/
Maintenance
requirements.
This alternative has a
minimal design life.
A new fixed breakwater
has a design life of
approximately 50 years.
A new floating
breakwater has a design
life of approximately 20-
40 years.
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Evaluation Criteria Option 1: Repair
Existing Breakwater
Option 2: New Fixed
Breakwater
Option 3: New Floating
Breakwater
Potential for
contamination issues
Minimal potential to
encounter
contamination issues as
only anchors on the lake
bottom.
Some potential to
encounter contamination
issues due to greater lake-
bottom disturbance.
Minimal potential to
encounter contamination
issues as only anchors on
the lake bottom.
Flexibility A floating breakwater
provides the most
flexibility as it can be
moved to accommodate
changes to the docks.
Additional new
breakwater needed to
accommodate expanded
marina basin.
A fixed breakwater is the
least flexible as the
structure cannot be
moved.
A floating breakwater
provides the most
flexibility as it can be
moved to accommodate
changes to the docks.
Potential impacts on
utilities.
Anchors can easily be
located away from any
utilities.
Cannot be located on top
of any utilities.
Anchors can easily be
located away from any
utilities.
Constructability Relatively easy to
construct.
Relatively easy to
construct.
Relatively easy to
construct.
Technical Summary The new floating breakwater is preferred as it provides more flexibility than a
fixed breakwater and the existing floating structure is not easily upgraded.
Cost
Relative cost
differences.
Lowest Cost. Highest Cost
(approximately $30,000
per m).
Moderate cost
(approximately $4,000
per m).
8.2. Breakwater Alternative Design Concepts (Class EA Phase 3)
Phase 2 of the class environmental assessment considered potential breakwater alternative solutions. The
alternative solutions included repair of the existing breakwater, replacement of the existing floating
breakwater with a new functional floating breakwater or replacement of the floating breakwater with a
fixed breakwater. The process concluded with a new floating breakwater being the preferred alternative
solution option due to a number of environmental advantages and a substantial capital cost advantage.
The alternative design concept stage work included further development of coastal design criteria and
further refinements of construction costs estimates and breakwater layout and configurations.
8.2.1. Coastal Assessment
A coastal assessment was completed including the development of wave climate for the breakwater
location for a full year and for a typical boating season. Boating season is considered to extend from May
15 to September 30. A wave hindcast was completed which looks at wind data from the last 30+ years to
determine the typical wave height, power and period. The winds used in the hindcast were from the
Hamilton Airport and covered a period of August 1971 to December 2011.
The results of the analysis are presented on Figures 8.1 and 8.2. Figure 8.1 indicates the directional
distribution of wave energy and wave heights. Generally, the hindcast shows that the largest winds and
waves in the west harbour come from the northeast with the second largest from the west. The directional
distributions are similar for the full year and the boating season. However, the full year shows a substantial
increase in wave height from the northeast and west quadrants. Figure 8.2 shows the exceedance of wave
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height and wave period for the hindcast period. The wave period was determined as it is a critical factor in
determining the performance a floating breakwater. The figures show that significant waves in the order of
1.2 m in height with a period of 4.1 seconds can be expected to approach the site from the most critical NE
direction during the year. The wave height and period are reduced to approximately 0.8 m and 3.4 seconds
during the boating season.
Wave scatter diagrams and other figures illustrating monthly and annual wave power distribution for full
year and a boating season hindcast are presented in Appendix D.
Figure 8.1: Directional Distribution of Wave Energy and Wave Heights (Full year)
Figure 8.2: Exceedance of Wave Height and Period (Full year)
North NE East SE South SW West NW North
0
5
10
15
20
25
30
35
40
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
Wave P
ow
er
(% o
f to
tal)
Wave H
eig
ht
(m)
Wave Height
% Wave Power
0 0.5 1 1.5 2 2.5 3 3.5 4 4.5
0.0001
0.001
0.01
0.1
1
10
100
0 0.3 0.6 0.9 1.2 1.5
Excced
an
ce (
%)
Wave Height (m)
wave height
wave period
Wave Period (s)
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8.2.2. Breakwater Design Alternatives
The breakwaters that can function with the local wave environment are expected to fall into two basic
design types. These design types include an “A” frame design and a concrete pontoon design, although
other systems can be also designed for the site conditions.
A-Frame: Figure 8.3 shows an example of an A-
frame breakwater design. An A-frame type
breakwater includes an inverted “A” frame
structure with floats and an underwater frame that
supports a central baffle board that reflects wave
energy. Floats are typically constructed using steel
pipes. The breakwater is secured in its position
with steel chains connected to concrete blocks on
the lake bottom. The breakwater is typically made
up of a number of sections that are connected
together in a straight line to act as one unit. . This
design is the same type as currently used at the site.
However, the main components of the breakwater,
that is the spacing and size of the floats and the size
of the baffle board would need to be properly sized
to function under design conditions.
Concrete Pontoon: Figure 8.4 shows an example of
a concrete pontoon breakwater design. A concrete
pontoon design typically includes a main body of the breakwater which serves as floatation chamber. It is
typically a concrete shell that encloses a foam core. Underwater walls or baffles extend down along the
sides of the caisson. The top of the concrete can be dressed with timber or other products to provide
walking surface and fenders can be attached to the sides of the pontoon to accommodate fair weather
mooring. The breakwater is secured in its position with steel chains connected to concrete blocks on the
lake bottom. The breakwater is typically made up of a number of sections that are connected together in a
straight line to act as one unit.
Figure 8.4: Concrete Pontoon Breakwater
Figure 8.3: A-Frame Breakwater
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Both types of breakwater would be manufactured off-site and likely floated to the site from a remote
location. Both breakwater types have similar anchoring systems consisting of chain connecting it to
concrete blocks on the bottom of the lake.
Using the evaluation criteria developed early in the project, the alternative breakwater types were
evaluated. Table 8.2 at the end of this section shows the comparison for the two breakwater types for each
of the evaluation criteria. The following summarizes the evaluation based on each of the criteria groups.
Natural Environment – The anchoring system for both alternatives is similar and there is limited impact to
the aquatic environment for either alternative. Neither type of floating breakwater will result in a
significant change in water circulation. The existing breakwater occupies approximately the top 3 m of the
water column. The floating systems under consideration are not expected to occupy any greater portion of
the water column.
Socio-Economic and Cultural Environment – Both design types, i.e. “A” frame or concrete pontoon, are
well suited for application at this location. They can be designed to perform well within the wave climate
of the site adequately reduce the waves providing protection for the marina as well as an element of flood
protection for the shoreline features. Neither alternative will impact cultural heritage.
Technical – Both alternatives have a reasonable 20-40 year lifespan and are readily available5. The only
difference between alternatives relates to their ability to provide an opportunity for docking during special
events. The concrete pontoon breakwater can readily provide additional mooring for special events during
light wave conditions. It can potentially also provide pedestrian access if appropriate ramps are provided.
Public access to the main east breakwater would also require appropriate controls in place to restrict access
during times of severe weather. However, no decision regarding pedestrian access to the breakwater has
been made at this point by the City of Hamilton. The evaluation process assumes that no public access is
being provided.
Cost – Costs are expected to be similar, although the “A” frame design has not been manufactured locally
for some time and up-to-date prices from manufacturers are not available. It is anticipated that the cost for
both options would be in the range of $5,500 to $6,500 per metre.
Overall the breakwater types have very similar impacts and both would be appropriate for this location.
Since there is no clear preference between the alternatives, it is recommended that the determination of
breakwater type be based on the market response to minimum performance specifications set by the City of
Hamilton.
During final design, performance specifications should be set out in a document that describes in detail the
functional and physical properties of the breakwater desired. For example, the document would describe
the incident wave conditions the breakwater is expected to operate in with the maximum transmitted wave
conditions permitted. The document would also describe the materials permitted in the manufacture of the
breakwater and applicable standard material specifications, such as CSA or ASTM standards. This
approach is proposed as it allows manufacturers of various proprietary systems to respond to a tender call.
8.2.3. Breakwater Layout Alternatives
Two alternative breakwater entrance configurations were developed. These include a northeast facing
entrance:
5 The approximate lifespan of a floating breakwater as provided by the manufacturer is approximately 25 years. Based on
experiences including the current Hamilton floating breakwater, it can be assumed that with regular maintenance, the lifespan can
extend to 40 years.
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Option 1: Northeast Facing Breakwater Layout (Figure 8.5) – this option provides protection to
boats entering and exiting from the more frequent but smaller waves from the west; and
Option 2: Northwest Facing Breakwater Layout (Figure 8.6) – this option provides protection to
boats entering and exiting from the less frequent but larger waves from the east.
The configurations were developed to assist in the illustration and assessment of the function and costs of
the design concepts of the breakwaters. Each breakwater layout protects a marina basin designed to
accommodate up to 900 boat slips using a typical boat size of 9 m. The breakwater layouts are conceptual
only, as the final marina design will be undertaken as a separate project.
Both concept designs provide a main entrance 50 m wide. In addition to this wide entrance, access to the
basin can be potentially obtained around the ends of the two main breakwaters. The breakwaters are not
shore connected. Two secondary breakwaters are used in both concepts to control wave penetration through
the main entrance and to control waves diffracting around the tip of Pier 4. The layouts were developed to
provide protection for the ultimate marina size, minimizing breakwater lengths while providing sufficient
channels to allow boats to move properly. The criteria for selection of channel widths and marina entrance
are based on publications produced by the SCHB of the Department of Fisheries and Oceans and the US
Corps. of Engineers6
Figure 8.5: Option 1 – North East Facing Entrance Breakwater Concept
6 Small-Craft Harbor: Design, Construction and Operation, J. W. Dunham and A. A. Finn, Special Report No. 2, U.S. Army Corps.
Of Engineers, Coastal Engineering Research Center, December 1974. Planning Guidelines for Recreational Harbours in Ontario,
Small Craft Branch, Department of Fisheries and Oceans, prepared by Hough Stansbury, Woodland Limited, 1992.
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Figure 8.6: Option 2 – North West Facing Entrance Breakwater Concept
Using the evaluation criteria developed early in the project, the alternative breakwater layouts were
evaluated. Table 8.3 at the end of this section shows the comparison for the two breakwater layouts for
each of the evaluation criteria. The following summarizes the evaluation based on each of the criteria
groups.
Natural Environment – The layout of the breakwater will have no impact on the natural environment.
Socio-Economic and Cultural Environment – Both layouts provide adequate protection for the marina.
During the consultation process with stakeholders the boaters expressed a slight preference for the west
facing entrance.
Technical – There is no technical difference between the layout alternatives.
Cost – There is no cost difference between the layout alternatives.
Overall the differences between the layout alternatives relate solely to the type and frequency of wave they
protect against for boaters entering or leaving the basin. As noted above, during consultation boaters
indicated a slight preference for a west facing entrance so that there is protection from the less frequent but
larger waves coming from the east. Thus, overall Option 2: the northwest facing entrance is preferred.
It is noted that the layout concepts shown on Figures 8.5 and 8.6 were prepared for the ultimate marina
size. In reality, the size and operations of the marina will evolve over many years. Although the maximum
size is based on a market study incorporated in the Phase 1 Technical Report (Appendix A), it may take
many years before this capacity is achieved. If the breakwater is installed to far from the docks there is
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potential for waves to be generated in the space between the docks and the breakwater. An assessment of
potential wave generation between the breakwater location and moored boats was undertaken to determine
the amount of open water that could exist between the docks and marina at this location. The results of this
assessment indicate that at the time of installation there should be no more than 100 meters of open water
between the breakwater and the floating docks.
To determine the final breakwater layout and location, the number of docks and approximate configuration
must be confirmed. It is recommended that a final decision regarding the location of the breakwaters
should be made at the time of final design and contract award.
Installation of the new floating breakwater will require approval of the Hamilton Port Authority. Other
agencies, such as the department of Fisheries and Oceans and Hamilton Conservation Authority should be
advised of the work. Their approvals may be required.
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Table 8.2: Evaluation of Breakwater Design
Evaluation Criteria Option 1: A-Frame Option 2: Concrete Pontoon
Natural
Environment
Opportunity to
naturalize the
shoreline and improve
fish habitat.
No difference – neither alternative significantly
changes shoreline or fish habitat.
No difference – neither alternative
significantly changes shoreline or fish
habitat.
Potential for impact to
aquatic or terrestrial
habitat during
construction.
No difference – both alternatives have the
minimal impact on fish habitat as a result of the
anchoring system and no impact on terrestrial
habitat.
No difference – both alternatives have
the minimal impact on fish habitat as
a result of the anchoring system and
no impact on terrestrial habitat.
Potential for water
quality improvement.
No difference – both alternatives provide
adequate water circulation.
No difference – both alternatives
provide adequate water circulation.
Impact on Erosion. No difference – both alternatives will assist in
the reduction of on shore flooding and erosion
potential.
No difference – both alternatives will
assist in the reduction of on shore
flooding and erosion potential.
Natural Environment
Summary
Both alternatives will assist in reducing on-shore wave action and flooding and thus
erosion and neither will have a significant impact on fish habitat or terrestrial habitat.
Socio-Economic and Cultural Environment
Potential for impacts
on waterfront
recreational or
commercial facilities.
No difference – both alternatives will protect
recreation and commercial facilities.
No difference – both alternatives will
protect recreation and commercial
facilities.
Opportunity for
enhancement of
waterfront recreational
or commercial
facilities/ amenities.
Both alternatives will protect recreation and
commercial facilities.
Both alternatives will protect
recreation and commercial facilities.
Potential for impact on
public safety.
No difference – both alternatives will protect
recreation and commercial facilities.
No difference – both alternatives will
protect recreation and commercial
facilities.
Potential to impact
cultural heritage
(archaeological
resources or built
heritage and cultural
landscapes) and/or
treaty rights.
No difference – neither alternative will impact
cultural heritage.
No difference – neither alternative
will impact cultural heritage.
Impact on
Navigability
No difference – both alternatives provide
protection during storms and require navigable
waters protection act approval.
No difference – both alternatives
provide protection during storms and
require navigable waters protection
act approval.
Socio-Economic and
Cultural Environment
Summary
Both alternatives will protect the amenities at the waterfront.
Technical
Structural integrity No difference – both are suitable for site
conditions.
No difference – both are suitable for
site conditions.
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Evaluation Criteria Option 1: A-Frame Option 2: Concrete Pontoon
Level of protection
provided.
No difference – both are suitable for site
conditions.
No difference – both are suitable for
site conditions.
Design life/
Maintenance
requirements.
No difference – both have a life of 20-40 years
and require the same maintenance.
No difference – both have a life of
20-40 years and require the same
maintenance.
Potential for
contamination issues.
No difference – both are in the same location
and contamination issues are not anticipated.
No difference – both are in the same
location and contamination issues are
not anticipated.
Flexibility Less suitable for boat docking but can be
modified for boat docking at an extra cost.
More suitable for boat docking.
Potential impacts on
utilities
No difference – neither alternative is likely to
impact utilities.
No difference – neither alternative is
likely to impact utilities.
Constructability No difference – both are straightforward to
construct.
No difference – both are
straightforward to construct.
Technical Summary Both alternatives have a reasonable design life and provide the same level of
protection. The Concrete breakwater provides a more suitable opportunity for
temporary boat docking should that be desirable.
Cost
Relative cost
differences.
Capital costs are similar for both alternatives
(approximately $4,000 per metre). Operation
and maintenance costs would also be similar for
both alternatives.
(Note: Budget pricing estimates presented in this
document are based on information supplied by the
manufacturer, SF Marine)
Capital costs are similar for both
alternatives (approximately $4,000
per metre). Operation and
maintenance costs would also be
similar for both alternatives.
(Note: Budget pricing estimates presented in
this document are based on information
supplied by the manufacturer, SF Marine)
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Table 8.3: Evaluation of Breakwater Layout
Evaluation Criteria Option 1: North-East Facing Entrance Option 2: North-West Facing
Entrance
Natural
Environment
Opportunity to
naturalize the
shoreline and improve
fish habitat.
No difference – neither alternative significantly
changes shoreline or fish habitat.
No difference – neither alternative
significantly changes shoreline or
fish habitat.
Potential for impact to
aquatic or terrestrial
habitat during
construction.
No difference – both alternatives have the
minimal impact on fish habitat as a result of the
anchoring system and no impact on terrestrial
habitat.
No difference – both
alternatives have the minimal
impact on fish habitat as a
result of the anchoring system
and no impact on terrestrial
habitat.
Potential for water
quality improvement.
No difference – both alternatives provide
adequate water circulation.
No difference – both alternatives
provide adequate water circulation.
Impact on Erosion. No difference – both alternatives will assist in
the reduction of on shore flooding and erosion
potential.
No difference – both alternatives
will assist in the reduction of on
shore flooding and erosion
potential.
Natural Environment
Summary
There is no difference between these alternatives from a natural environment
perspective.
Socio-Economic and Cultural Environment
Potential for impacts
on waterfront
recreational or
commercial facilities.
No difference – both alternatives will protect
recreation and commercial facilities.
No difference – both alternatives
will protect recreation and
commercial facilities.
Opportunity for
enhancement of
waterfront recreational
or commercial
facilities/ amenities.
Both alternatives will protect recreation and
commercial facilities. The north-east facing
entrance layout will provide the best protection
against the smaller more frequent waves.
Both alternatives will protect
recreation and commercial
facilities. The north-west facing
entrance layout will provide the
best protection against the larger
although less frequent waves.
During consultation, boaters
expressed a slight preference for
this alternative.
Potential for impact on
public safety.
No difference – both alternatives will protect
recreation and commercial facilities.
No difference – both options will
protect recreation and commercial
facilities.
Potential to impact
cultural heritage
(archaeological
resources or built
heritage and cultural
landscapes) and/or
treaty rights.
No difference – neither option will impact
cultural heritage.
No difference – neither option will
impact cultural heritage.
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Evaluation Criteria Option 1: North-East Facing Entrance Option 2: North-West Facing
Entrance
Impact on
Navigability
No difference – both options provide protection
during storms and require navigable waters
protection act approval.
No difference – both options
provide protection during storms
and require navigable waters
protection act approval.
Socio-Economic and
Cultural Environment
Summary
Both options with protect the waterfront amenities. A slight preference for the
north-west facing entrance was expressed by representatives of some of the boating
organizations.
Technical
Structural integrity No difference – both are suitable for site
conditions.
No difference – both are suitable
for site conditions.
Level of protection
provided.
No difference – both are suitable for site
conditions.
No difference – both are suitable
for site conditions.
Design life/
Maintenance
requirements.
No difference – both have a life of 20-40 years
and require the same maintenance.
No difference – both have a life of
20-40 years and require the same
maintenance
Potential for
contamination issues
No difference – both are in the same location
and contamination issues are not anticipated.
No difference – both are in the
same location and contamination
issues are not anticipated.
Flexibility No difference – both provide similar flexibility. No difference – both provide
similar flexibility.
Potential impacts on
utilities
No difference – neither option is likely to
impact utilities.
No difference – neither option is
likely to impact utilities.
Constructability No difference – both are straightforward to
construct.
No difference – both are
straightforward to construct.
Technical Summary There is no difference between the layout options from a technical perspective.
Cost
Relative cost
differences.
No difference – cost is the same for both
options.
No difference – cost is the same for
both options.
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9.0 POTENTIAL EFFECTS AND PROPOSED MITIGATION
9.1. Proposed Shoreline and Breakwater Improvement
Proposed Shoreline Improvements
The proposed shoreline improvements as summarized in Table 7.3 are anticipated to improve the safety of
the shoreline for those using the waterfront as well as add fish habitat where appropriate; and the new
floating breakwater will protect the existing marina and provide flexibility for future expansion.
Design concepts for the improvements to the shoreline were developed for each sub-reach where
improvements were identified (see Table 7.3 and Appendix C). The design concepts were developed using
assumed soil parameters typical of the area and our understanding of the future use of the structure. Cost
estimates of the design concepts are provided for each sub-reach in Table 9.1. The estimates are based on
typical construction costs for similar work in southern Ontario. The estimates do not include an allowance
for design, contingency or taxes. Other associated works such as fish habitat improvements and servicing
infrastructure are also not included.
The following provides comments about the costing and phasing of each reach. Overall, the approximate
cost for improvements to the shoreline is $11.4 million. This cost would not occur all at once as it is
envisioned that shoreline improvements will be implemented over time.
Reach 8
Shoreline improvements are proposed for approximately 470 m of the shoreline within Reach 8. The cost
estimate assumes that approximately 126 m of the shoreline is protected with either an armour stone wall or
gently sloping shore. The rest of the shoreline is protected with a steel sheet pile wall. Future backshore
uses may require change to the type of shoreline protection required. Details of future backshore uses (e.g.,
size of police dock/building) may require change the extent of each type of shoreline protection required.
The cost of the steel sheet pile wall is based on the depth of water shown in the section. No allowance for
dredging was included in the estimate. The cost estimate for the boardwalk is based on pedestrian loading
of a 4 m wide boardwalk.
Reach 1
Shoreline improvements are proposed for approximately 115 m of the shoreline within Reach 1. The cost
estimates do not include an allowance for landscaping or grading behind the walls or revetment. The cost
estimate for the revetment assumes that the existing stone and rubble would be supplemented with new
stone as required.
This work would be phased with the future development of the harbour.
Reach 2
Shoreline improvements are proposed for all of the shoreline within Reach 2. The cost estimates do not
include an allowance for landscaping or grading behind the walls or on the pier. The cost estimate for the
pedestrian bridge in sub-reach 2.1 assumes that the bridge would be for pedestrian use only, less than 4 m
wide and consist of one span. The bridge would be prefabricated, supported on a pile foundation located
landward of the shore protection.
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The cost estimate for sub-reach 2.3 addresses the shore protection structure. It does not include an
allowance for infilling if the Police Marine Unit is relocated and shoreline realigned or an allowance for a
new building if the Police Marine Unit were to remain.
The condition of the steel sheet pile wall in sub-reach 2.4, Police Marine Unit boathouse is of significant
concern and further investigation into the soundness of the retaining wall and the sheet pile which forms the
foundation for the building should be investigated. The replacement of the existing structure should be a
priority for the City.
Currently sub-reach 2.5 has been closed to public use. Improvements in this sub-reach should be carried
out with the improvements in sub-reach 2.4. Other improvements should be phased with the future
development of the harbour.
Reach 3
Shoreline improvements are proposed for all of the shoreline within Reach 3. Cost estimates were not
prepared for sub-reaches 3.4 to 3.6 because the current land use requires the existing structure to remain
unaltered. The depth of water within the James Street basin is deeper than other shoreline areas within the
harbor which is reflected in the cost estimate. The cost estimates do not include an allowance for
landscaping or grading behind the walls or on the pier. An allowance for the existing storm sewer outlet is
included but no allowance any repairs to the storm sewer landward of the wall are not included. No
allowance has been made for the any work associate with the fuel service infrastructure at the wharf.
Improvements should be phased with the future development of the harbour.
Reach 4
Shoreline improvements are proposed for all of the shoreline within Reach 4. Cost estimates were not
prepared for sub-reach 4.3 and 4.4 because the current land use requires the existing structure remain
unaltered. The cost estimates do not include an allowance for landscaping or grading behind the walls.
Improvements should be phased with the future development of the harbour.
Reach 5
Shoreline improvements are proposed for all of the shoreline within Reach 5. Cost estimates are based on
public access being provided on the lakeside of the shore protection structure. The cost estimates do not
include an allowance for landscaping or grading behind the walls.
Improvements should be phased with the future development of the harbour.
Proposed Breakwater Improvements
The breakwater will likely be constructed in an off-site location and floated to Hamilton Harbour. Once it
is in the appropriate location anchors will be dropped. The time required for complete installation of the
new floating breakwater is estimated at 2-3 months. Should the breakwater need to be moved, the anchors
would be raised and boats would tow the breakwater to its new location. As previously noted, it is
recommended that the breakwater be placed so there is no more than 100 m of open water between the
breakwater and floating docks. It is recommended that a final decision on the location of the breakwater be
made based on the number of docks and configuration to be confirmed during final design to contract
award. The approximate cost for the breakwater is $4.5 million.
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The question has been raised about whether the existing breakwater can be used either in Macassa Bay or
as one of the sections of the proposed new floating system.
The existing floating breakwater can be potentially used to reduce wave agitation in the Macassa Bay
mooring area and as part of the new breakwater configuration at the main basin. The length of the existing
breakwaters are sufficient to be used at both locations. The existing breakwaters are 324 m long in total.
The condition review report of the existing floating breakwater (Riggs, 2011) indicates that the breakwater
requires some immediate maintenance. The cost of the maintenance is estimated to be in the order of
$90,000. Longer term maintenance, to be carried out in the next 10 years, is estimated to be in the order of
$328,000. The remaining service life is estimated to be 20 years. The condition of the existing breakwater
must be considered when re-deployment is being evaluated.
A review of wave conditions indicates that waves reaching the mouth of the Macassa Bay are smaller, in
magnitude than in the main basin. Our analysis indicates that wave just reach the upper limit of acceptable
range. The existing floating breakwater, if relocated, is expected to reduce waves below the upper limit
and provide more suitable mooring conditions. It is likely that only the shorter eastern breakwater,
approximately 116 m long, would be required at this location. The exact length and positioning can be
confirmed during detailed design.
The only location at the main basin where the existing breakwater is expected to provide suitable wave
reduction is on the west side. The waves from the west and northwest quadrants are considerably smaller
and with a shorter wave period than from the east quadrant. Thus, the existing breakwater will be effective.
The preliminary configuration of the entrance breakwater proposes a relatively short breakwater section, in
the order of 60 m long, on the west side. A portion of the existing breakwater could be used on this side.
However, the remaining life of the breakwater is only about half of the design life of the new breakwater
and early replacement may be required.
Construction Methods
Construction method and the equipment required for the different design concepts proposed are described
in general below. The actual method used will depend on the contractor and site specific constraints. All
work along the shoreline is typically carried out behind a silt curtain to prevent debris and sediment from
entering the lake.
Raising the existing crest of the structure with a reinforced concrete cap involves preparing the
existing wall to support the concrete cap, installing the steel reinforcement, forming the cap and
placing the concrete. Equipment would likely include a backhoe and welding equipment.
Materials would be brought in by truck.
Rip Rap revetments and armour stone walls can involve the addition of stones to an area of the
shore with existing rip-rap/armour stone or the removal of existing protection, re-grading and the
placement of new rip-rap/armour stone. Equipment would likely include a small backhoe and
materials will be brought in by truck.
Steel sheet pile wall construction typically involves driving steel sheet piles either in front of the
existing wall, or in the same location as the existing wall, installing the anchor wall and rods,
installing the concrete cap and backfill behind wall to final grade. Equipment would likely include
a crane, excavator and backhoe. A barge and tug may be required if the work is completed from
the water. Materials would be brought to the site by truck.
Pedestrian bridge installation typically involves constructing the bridge foundation, trucking the
prefabricated bridge to the site and installing it. Equipment would likely include a crane, excavator
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or backhoe and vibrator or hammer to drive piles for the foundation. Materials would be brought
in by truck.
Table 9.1: Shoreline Cost Estimate by Reach
Reach Existing Improvements Length
(m)
$/metre Total
($)
Reach 8
8.1 Stone Revetment None Required 133 - -
8.2 Armour Stone all None Required 15 - -
8.3 Armour Stone Wall Raise crest of existing
Armour Stone by
adding one additional
Armour Stone (76.3 m
elevation)
38 500 19,000
8.4a Concrete Block Wall Armour Stone Wall or
Gently Sloping Shore
126 1,500 189,000
8.4b Concrete Block Wall Steel Sheet Pile Wall
with Concrete Cap
87 6,500 565,500
8.5a Concrete Block Wall Steel Sheet Pile Wall
with Concrete Cap
69 6,500 448,500
8.5b Concrete Block Wall Steel Sheet Pile Wall
with Walkway on
Lakeside
152 11,000 1,672,000
Reach 1
1.1 Sheet Pile Wall None required 145 - -
1.2 Steel Sheet Pile Wall Concrete Cap 36 1,000 36,000
1.3 Rubble Revetment Rip Rap Revetment 77 1,500 115,500
Reach 2
2.1 Timber Pile Pier Remove existing timber
pier and install
Pedestrian Bridge
1 150,000 150,000
2.2 Timber Pile Wall Remove timber piles
along the waterline and
install Steel Sheet Pile
Wall with Concrete
Cap
50 8,000 400,000
2.3 Steel Sheet Pile Wall
(Dock)
Concrete Cap and hole
repair
40 1,000 40,000
2.4 Steel Sheet Pile Wall
(Boathouse)
Steel Sheet Pile Wall
with Concrete Cap
31 8,000 248,000
2.5 Timber Pile Pier Steel Sheet Pile Wall
with Concrete Cap
106 8,500 901,000
Reach 3
3.1 Steel Sheet Pile Wall Remove existing wall
above the waterline and
install Steel Sheet Pile
Wall with Concrete
Cap
69 9,000 621,000
3.2 Steel Sheet Pile Wall Remove existing wall 35 8,200 287,000
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Reach Existing Improvements Length
(m)
$/metre Total
($)
and Masonry Wall above the waterline and
install Steel Sheet Pile
Wall with Concrete
Cap
3.3 Steel Sheet Pile Wall Remove existing wall
above the waterline and
install Steel Sheet Pile
Wall with Concrete
Cap
183 8,000 1,464,000
3.4 Steel Sheet Pile Wall Existing to be
maintained with current
use
41 8,000 328,000
3.5 Steel Sheet Pile Wall Existing to be
maintained with current
use
16 8,000 128,000
3.6 Steel Sheet Pile Wall Existing to be
maintained with current
use
24 8,000 192,000
3.7 Steel Sheet Pile Wall Remove existing wall
above shoreline and
install Steel Sheet Pile
Wall with Concrete
Cap
115 8,000 920,000
Reach 4
4.1a Steel Sheet Pile Wall Remove existing wall
above shoreline and
install Steel Sheet Pile
Wall with Concrete
Cap
33 8,000 264,000
4.1b Steel Sheet Pile Wall Concrete Cap 29 1,000 29,000
4.2 Rip Rap Revetment Additional Rip Rap 52 200 10,400
4.3 Concrete Wall and
Launch Ramp
Raise crest elevation of
concrete wall and
grading to maintain
launch ramp
27 6,000 132,000
4.4 Rip Rap Revetment and
Pile Supported Dock
Existing to be
maintained with current
use
22 - -
4.5 Timber Retaining Wall Steel Sheet Pile Wall
with Concrete Cap
77 8,000 616,000
Reach 5
5.1 Timber Retaining Wall Steel Sheet Pile Wall or
Steel Sheet Pile Wall
with Walkway on
Lakeside supported by
piles
95 16,000 1,520,000
5.2 Steel Bin Wall Steel Sheet Pile Wall
with Walkway on
37 15,000 555,000
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Reach Existing Improvements Length
(m)
$/metre Total
($)
Lakeside supported by
piles
5.3 Rock/Rubble Slope Steel Sheet Pile Wall
with Walkway on
Lakeside supported by
piles
24 15,000 360,000
TOTAL 1692 11,430,900
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9.2. Potential Effects and Mitigation
During construction there is some potential for negative effects on the environment and those who use the
waterfront. The City is committed to minimizing negative effects associated with the breakwater and
shoreline. The following text outlines the potential effect and proposed mitigation. The effects and
mitigation are described below and summarized in Table 9.2.
Natural Environment
Overall, the proposed installation of a new floating breakwater, solutions to shoreline flood hazards and the
repair and/or replacement of the shoreline will have minimal impacts on the terrestrial environment.
Through consultation with regulatory agencies and characterization of the study area though various field
studies, it has been determined that no significant natural features or species protected under the Ontario
Endangered Species Act, 2007 or federal Species at Risk Act will be impacted. However, as the proposed
works are located in or immediately adjacent to the water, potential impacts to the aquatic environment are
discussed below.
Floating Breakwater - The installation of a new floating breakwater has been determined to have minimal
impacts to the aquatic environment. Installation of the anchor system for a new floating breakwater is
anticipated to have minimal impacts, most of which can be mitigated by construction occurring outside of
the warm water fisheries timing window in the harbour (i.e., no in-water work from March 15 – July 15).
The anchoring system for the various potential types of floating breakwater systems are all anticipated to
have a similar level of temporary disturbance to fish habitat.
Shoreline Improvements – As discussed in the above sections, most of Hamilton West Harbour provides
good fish habitat, including bass nesting areas and opportunities for urban fishing. Construction activities
associated with the repair or replacement of shoreline areas has the potential to impact fish habitat.
Mitigation measures may include:
In-water works to be conducted during the appropriate timing window (e.g. avoiding the spring
period and completing in-water works between July 16 and March 14) and not during periods of
elevated lake levels;
All construction materials and equipment used for the purposes of site preparation and project
completion should be operated and stored in a manner that prevents any deleterious substances
from entering water;
An emergency spill kit should be kept on site in case of fluid leaks or spills from machinery;
Any stockpiled construction materials should be stored more than 30 m from any water;
Vehicular and equipment refueling and maintenance should be conducted away from any water;
Implementation of sediment and erosion control measures should occur prior to the commencement
of construction, and maintained and upgraded as necessary during the construction phase to prevent
entry of sediment into the water. This will likely involve the use of a silt curtain;
Shoreline materials to be used should be environmentally-friendly materials that will not release
potential contaminants into the aquatic environment;
Riparian vegetation removed for shoreline repair/replacement should be reinstated post-
construction using native species; and,
All disturbed surfaces should be stabilized as soon as possible after construction. Effective erosion
and sediment control measures should be maintained until disturbed areas are stabilized.
With the implementation of these mitigation measures, the potential for construction impacts to fish and
fish habitat can be minimized. The repair or replacement of shoreline vertical walls is proposed to include
overall improvements to both the shoreline and fish habitat. Overall, it is anticipated there will be no net
loss to fish habitat; with the incorporation of fish habitat feature where shoreline replacement is proposed, a
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net benefit to fish habitat will likely be achieved. This net benefit to fish habitat is directly in-line with the
RAP objectives of providing and/or enhancing areas of emergent and submergent aquatic plants and
converting 15 km of littoral shoreline from vertical walls to a shallow, sloping shoreline.
Further, in support of the MNR’s urban fisheries initiative in the harbour, and to reduce the pressure on top
predator populations such as largemouth bass, the Hamilton West Harbour Recreation Master Plan
identifies shore-based amenities targeted towards anglers are proposed in the vicinity of the Marine
Discovery Centre. With the improved waterfront shoreline, it will be prudent to reduce fishing pressure in
shallow areas where spawning and nesting fish occur and would be vulnerable to incidental out-of-season
capture. To help ease fishing pressure, elements such as shoreline plantings, emergent littoral vegetation or
construction of in-water barriers are options to limit the accessibility of key nesting areas by anglers.
Socio-Economic and Cultural Environment
The re-construction of the shoreline will be undertaken in smaller parcels of work implemented as the use
of the waterfront changes over time. This will control the level of interference with waterfront use to a
nominal level. All work areas will be fenced and appropriate signage posted to warn waterfront users of
potential danger due to construction.
There is likely to be some construction related disruption including noise, dust and traffic. Construction
will occur during normal working hours and will abide by the municipal noise by-law. Dust is not
expected to be significant; however, dust suppressants will be used where necessary. Trucks will be
required to bring equipment and materials on-site. Given that the shoreline construction will be staged it is
not anticipated that there will be a significant number of trucks at one time. Truck drivers will be
instructed to maintain speed limits and exert caution through the North End neighbourhood.
Based on the Draft City of Hamilton Archaeology Management Plan (June 2012), the west Hamilton
waterfront is identified as an area with overall archaeological potential. As such, the City will review site
specific information for the area and confirm the need for an archaeological assessment. If it is determined
that an assessment is required it will be conducted prior to initiating construction. The Draft Archaeology
Management Plan identifies preservation in place as the preferred approach for archaeological sites and
preservation by excavation where in place preservation is not possible. The draft plan also articulates the
importance of informing and involving relevant parties including First Nations and appropriate provincial
representatives when working around identified archaeological sites. If unanticipated archaeological sites
are uncovered during construction the following must occur:
Work on the site and within 20 m is to cease;
Site is to be secured; and
Contact must be made with the City and appropriate City staff will conduct a site visit, inform First
Nations and other relevant parties and formulate a site specific remediation plan.
The installation of the new breakwater does have the potential to temporarily interrupt boat travel. It is
anticipated that the installation time will be relatively short (approximately 2-3 months). To the extent
possible, the installation will be timed to avoid the boating season. The new floating breakwater will
incorporate appropriate signage and lighting to assist in navigation as per Transport Canada’s requirement
under the Navigable Waters Protection Act.
It is expected that most of the work activities for the shoreline will be land based and interference with
boating activities in the harbour as a result of shoreline work will be limited. Temporary disruption may
occur for those using the Waterfront Trail or accessing the waterfront for other reasons. As the shoreline
improvements are expected to be phased in over time, the disruption is anticipated to be localized and over
short periods of time. Appropriate signage and fencing will be put in place to minimize impact and
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maintain public safety during construction. Shoreline construction will be designed to incorporate all
existing outfalls and other existing infrastructure, where necessary.
Table 9.2: Summary of Effects and Mitigation
Criteria Potential Effect Proposed Mitigation
Natural
Environment
Water quality Potential for sedimentation and
erosion during construction to
temporarily impact water
quality.
Shoreline construction will use silt fencing as
appropriate to minimize siltation and water quality
impacts.
Disturbed surfaces will be stabilized as soon as
possible and sediment and erosion control
measures maintained until disturbed areas are
stabilized.
Stockpiled soils or other materials will be kept
more than 30 m from the water.
Shoreline materials used will be environmentally-
friendly materials that will not release potential
contaminants.
Work with machinery around
water introduces the potential
for spills into the Harbour.
Equipment will be stored and operated in a
manner that prevents deleterious substances from
entering water. Refueling of machines will be
done away from the shoreline. An emergency
spill kit will be kept on-site.
Potential for changes to water
circulation. The floating breakwater will not result in a
significant change to circulation in the Harbour.
Fish Habitat Placement of anchors and
shoreline improvements have
the potential to damage existing
fish habitat.
The footprint associated with the floating
breakwater anchors will be minimal.
In water work restricted from March 15 to July 15.
The design of shoreline improvements has
incorporated the production of new fish habitat
wherever possible.
Terrestrial Habitat Removal of shoreline
vegetation. This disruption to shoreline vegetation is
temporary during construction and
habitat/landscaping will be replaced.
Birds will likely use the new
floating breakwater for roosting. This currently occurs with the existing floating
breakwater. No mitigation is proposed.
Erosion Improves erosion protection
along the shore. No mitigation required.
Socio-Cultural
Environment
Impact on
Waterfront
Facilities
Construction has the potential to
cause noise and dust. Construction will be undertaken within the City of
Hamilton noise by-law.
Dust for this project is expected to be minimal;
dust suppressants will be used, where necessary.
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Criteria Potential Effect Proposed Mitigation
Construction of shoreline has
the potential to result in truck
traffic through the North End
neighbourhood.
The phasing of shoreline construction will
minimize the number of trucks at one time.
Truck drivers will be instructed to maintain speed
limits and exert caution through the north end
neighbourhood.
Construction of the breakwater
could interfere with boating
activities.
Breakwater construction will mostly be completed
off-site and the installation of the breakwater can
be carried out over a relatively short period of
time (approximately 2 -3 months).
To the extent possible, breakwater installation will
take place outside of the primary boating season.
The existing breakwater can be removed after the
new breakwater is installed so negative impact on
the enjoyment of the area should be minimal.
Care will be taken to ensure that barges and other
construction related traffic in the water are clearly
marked.
All marinas and boat clubs will be informed of the
timing of construction in advance.
Construction of the shoreline
improvements could interfere
with people using the shoreline
to access boats, fish or walk
along the Waterfront Trail.
Where possible shoreline construction will be
done during off-season when there is less activity
on the waterfront.
Construction will be completed in sections so
there will only be smaller areas of disruption.
All marinas, boat clubs and other permanent
waterfront operations will be informed of timing
in advance of construction.
Appropriate detour signs for the Waterfront Trail
will be provided.
Potential for impact on existing
features and buildings at the
shore.
Construction of shoreline improvements within or
immediately adjacent to buildings will be timed to
coincide with changes to buildings where possible.
Impact to existing onshore features such as the
Waterfront Trail will be temporary and features
will be replaced.
Specific improvements and timing will be
discussed with tenants.
Enhancement of
Waterfront
Facilities
Reduction in potential for
flooding. The combination of shoreline improvements
where the shoreline is raised and the addition of a
new floating breakwater will reduce the potential
for flooding but the City may still need to
floodproof new buildings.
Public Safety Potential for public safety
concerns during construction. The construction area will be fenced so that there
is no public access to the construction area.
Improves protection for the
marina and shoreline. No mitigation required.
Navigation New floating breakwater has the
potential to impact navigation. Navigation lights and signage will be added as
appropriate.
Transport Canada approval under the Navigable
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Criteria Potential Effect Proposed Mitigation
Waters Protection Act is required.
Cultural Heritage Potential for archaeological
resources. Prior to construction the City will complete a
Stage 1 Archaeological Assessment and if
required further assessment to determine the
possibility for archaeological sites along the
waterfront.
Impact on Utilities Potential impact to existing
infrastructure Changes proposed to the shoreline will be
designed to incorporate all existing outfalls and
other existing infrastructure.
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10.0 FUTURE APPROVAL REQUIREMENTS
The following documents additional approvals required prior to the construction of the proposed
breakwater and shoreline improvements:
Navigable Waters Protection Act – Approval under the Navigable Waters Protection Act protects the
public right to boat freely on the waterways in Canada. Approval is required for any structure to be placed
in any navigable waters. Transport Canada review or approval is not required for erosion protection works
that are considered a minor works based on the terms and conditions outlined in the Minor Works and
Waters (Navigable Waters Protection Act) Order. Transport Canada review and approval would be
required for the construction of the proposed breakwater.
Fisheries Act – Section 35 (1) of the Fisheries Act states that “No person shall carry on any work,
undertaking or activity that results in the harmful alteration or disruption, or the destruction, of fish
habitat”. Fisheries and Oceans Canada has a Level II agreement with the Hamilton Conservation Authority
(HCA). Under this agreement, HCA is responsible for reviewing projects to identify any impact to fish and
fish habitat and working with proponents to identify mitigation measures. If impacts can be mitigated,
HCA will issue a letter of advice for the project and authorization under the Fisheries Act is not required.
The City has identified a number of areas where fish habitat will be enhanced as part of this shoreline
improvements proposed. During their review of this Environmental Study Report and subsequent
discussions, HCA will confirm whether impacts to fish and fish habitat have been adequately mitigated.
Hamilton Port Authority - The Hamilton Port Authority (HPA) regulates all activities within and on the
waters of Hamilton Harbour as per the Canada Marine Act. Authorization is required from the HPA for the
proposed floating breakwater and shoreline work. It will need to be confirmed if this document will fulfill
their environmental assessment requirements.
Development, Interference with Wetlands, and Alterations to Shorelines and Watercourses Regulation
(Ontario Regulation 161/06) – Proposed shoreline works in the Harbour are regulated by the Hamilton
Conservation Authority in order to prevent flooding and erosion. Approval will be required for any and all
works proposed within the lands regulated pursuant to Ontario Regulation 161/06. The City of Hamilton
will work with HCA during the design phase for the shoreline to fulfill their requirements.