FLOOD RISK & RESILIENCYA unique blend of expertise in pre-disaster planning and post-disaster implementation of resiliency strategies.

FLOOD RISK & RESILIENCY

Sea-level rise and climate change may not be noticeable from day to day, but modeling predicts that floods and droughts will become increasingly common and intense: the frequency of major storms increases and extremes of river discharges change, impacting coastlines and flood prone regions even more dramatically during extreme weather events.

A RICH HISTORY IN WATER MANAGEMENT

Arcadis has long been involved in flood risk and resiliency projects for planning, design and construction management of storm surge barriers, gate structures, levees, dikes, and dunes. Through our Dutch roots, Arcadis is recognized as a global leader in international water management technologies.

Some recent examples of thought leadership activities include Arcadis’ leading role in the international Delta Conferences in the Netherlands in 2014 and 2015, the Dutch Dialogues in New Orleans and Norfolk, the C40 Connecting Delta Cities program, and most recently as a key player in the federal Rebuild by Design competition and the National Disaster and Resilience Competition led by HUD, an intense thought provoking process that has set new standards for flood risk and resiliency in the Sandy affected region.

Our specialists have assessed impacts, planned, designed, and maintained flood defence infrastructure from levees to complex one-of-a-kind structures. We have applied these talents in the U.S., Italy, France, Germany, Poland, Sweden, the Netherlands, United Kingdom, Korea and elsewhere.

Arcadis brings unique global experiences and understands how to bring our wealth of resources to resiliency strategies tailored to our client’s

Climate change is a global threat, but its impacts play out differently from country to country and city to city. Arcadis understands the risk, vulnerabilities and disruptions associated with storm events and the process and strategies at various scales to address these threats.

Arcadis is uniquely qualified to help clients understand the urgency for pre-disaster planning in high risk coastal metropolitan areas and provide services to address increasing threats of natural disasters and flood risk.

FLOOD RISK & RESILIENCY

needs. We understand the complexities of coastal and riverine circumstances - we have planned, designed and managed the construction of some of the largest flood defence projects ever contracted in the United States. And most importantly, Arcadis understands the many assets and services that keeps our cities going and that help drive local communities and businesses.

Arcadis has a complete range of innovative engineering expertise to plan, design, assess and maintain water resiliency systems, including:

• Hydraulic Structures and Storm Surge Barriers• Coastal Strengthening and Ecosystem Restoration• Critical Infrastructure Fortification• Sustainable Waterfront Redevelopment• Climate Change and Sea Level Rise Adaptation

RESILIENCY PLANNING 2016

Resiliency is commonly being defined as the capacity of individuals, communities, institutions, businesses, and systems within a city to survive, adapt, and grow no matter what kinds of chronic stresses and acute shocks they experience. Resiliency is the key characteristic of a system that is able to withstand disruption caused by acute stress, this may relate to Infrastructure and Transportation, Critical Assets, Communities and Businesses.

The most significant trends impacting sectors in coastal urban systems in the US are:

• The increased urbanization in coastal regions• An increased risk of flooding, damage and loss of

life and aquatic habitat• Drastically degrading and aging flood protection

structures • Increased water scarcity and land subsidence• Increased urban vulnerability and less space for

water• Increased disruption of services, business, public

transport and electricity

Urbanization of deltas and coastal areas, and the value of real estate and waterfront infrastructure, shows continued increase. Building resilient cities and communities is more relevant today than ever before, given these significant trends. The prevention of flood risk and protection of communities and assets is no

Superstorm Sandy damage, Brooklyn, NY.

Flood modeling for telecommunication company in Lower Manhattan, NY.

FDR East River Drive flooding post-Sandy, New York, NY.

FLOOD RISK & RESILIENCY

longer a matter of waterfront adjustments: the active enhancement of communities has become a priority. Providing flood resiliency is becoming the accelerator of sustainable urban redevelopment, and coastal metropolitan areas are actively leading this transition.

The 2014 and 2015 Rebuild by Design and the National Disaster Resilience Competition taught the Sandy-affected region that “good solutions” not just have the support of the many stakeholders involved, but contribute to the well-being of communities and the economic strength of the region. In other words, local interventions need to have regional spin off and resiliency strategies need to guide city leaders and asset managers on where resources will have most impact. Resiliency planning for coastal cities in this regard, is a balancing act between the many urbanistic functions, the needs of local communities and business and limited resources.

WHAT IS IT THAT WE DO?

Our global experience shows that integrating flood protection and urban redevelopment results in resilient and more attractive cities. We help our client’s place their local challenges in a broader context and show what “good solutions” look like.

Our focus markets relate to providing comprehensive and sustainable resiliency strategies for coastal metropolitan areas, local communities, hardening of infrastructure and transportation networks and critical facilities for public and private clients.

Making calculated distinctions between short and longer term resiliency strategies allows local governments to frame local challenges and solution strategies in a regional perspective. Thus, stimulating social-technical and cost benefit driven strategies that are a driver for sustainable urban transformation and growth.

Rebuild by Design Winning Design for Protecting Lower Manhattan, NY.

SUSTAINABLE MULTI-LAYERED SOLUTIONS FOR RESILIENT CITIES

Our multi-layered solution strategy for larger coastal areas builds of the century long experiences from the Netherlands and the strategies developed by the USACE for coastal Louisiana after Hurricane Katrina. In the event that a flood protection line fails or is surpassed by significant quantities of water, the second line takes over as the primary line. This means that the total solution can consist of a set of

Superstorm Sandy damage, Brooklyn, NY.

FLOOD RISK & RESILIENCY

measures implemented in a comprehensive plan. The multi-layered strategy is applicable at various scales, including hardening of critical facilities.

For cities and larger coastal area’s the fully build out system can include the following aspects:

Blue Dunes, a Rebuild by Design Proposal, New York, NY.

Seabrook Sector Gates, New Orleans, LA.

Flood protection levee surrounding the Bay Park STP, East Rockaway, NY.

DURING CONSTRUCTION

COMPLETED

The following overview shows our core services and outlines a couple of examples per service area:

Integrated Resiliency Planning • Rebuild by Design, BIG U for the

compartmentalized protection of Lower Manhattan with multi-functional use of public space.

• Bridgeport Resilient, providing an integrated coastal resiliency masterplan to stimulate urban rejuvenation.

• Climate Ready Boston Study, providing the baseline of risk and vulnerability, identification of Climate Resiliency Focus Areas and identification of strategies addressing flood risk, urban heat islands and social inequality.

Engineered SolutionsThe primary approach to flood control in past decades has been resistance – creating large, “hard” engineered solutions designed primarily to hold back flood waters and prevent storm surge from damaging developed areas. Engineered solutions are not just intended to provide flood resiliency strategies at the waterfront but need to enhance communities as a whole, by providing co-benefits that allow for multi-functional use of space.Natural SolutionsMetropolitan areas are studying “soft engineering” solutions that integrate and reinforce natural features and forces to achieve regional and local coastal protection and community resilience goals. Examples of coastal green strategies are so called “living shorelines”, like underwater banks or artificial reefs that provide habitat for underwater ecology.Urban SolutionsThis approach takes a local perspective - protecting urban areas against flooding by “hardening” critical infrastructure to make it more resilient. Examples are telecommunication and data centers, hospitals, sewage treatment plants and power plants. These hybrid systems solutions integrate water management and urban planning efforts.

FLOOD RISK & RESILIENCY

Benefit Cost Analyses, Grant Applications • Nassau County, Bay Park Sewage Treatment

Plant, providing recovery and mitigation assistance, helping NC to receive a record high $730M in federal and state CDBG-DR funds.

• New York City Health and Hospital Corporation, providing mitigation assistance resulting in the largest FEMA awarded project, funded at over $1.7B.

Resilient Bridgeport, Bridgeport, CT.

East Side Coastal Resiliency, New York, NY.

Coney Island Hospital, Brooklyn, NY.

Hydrodynamic Modeling • NYC EDC - Special Initiative for Rebuild and

Resilience (SIRR), providing modeling support to asses key vulnerabilities in the NYC region.

• San Mateo County (CA), shoreline vulnerability study assessing implications of sea level rise and increased precipitation.

Civil Engineering Design • New York City Dept. Design and Construction,

30% design of the first phase BIG U - East Side Coastal Resiliency (ESCR) study.

• Verizon Telecommunication, feasibility assessments, construction design and testing of removable flood wall system for 2 downtown locations.

Ecosystem Restoration • Cat Island Chain Ecosystem Restoration,

feasibility and design for restoration of offshore islands, re-using local dredged materials.

• Port Authority of New York and New Jersey, climate study for the Brooklyn Red Hook waterfront assessing technologies and policies for the re-use of dredged materials.

WHO IS THE TEAM?

The Flood Risk & Resilience Growth Accelerator works closely with the Water Management Organization and the Urban & Coastal Resiliency and Planning Policy & Economics leads. The group leads are supported by a larger team of approximately 15 resiliency planning, hydrodynamic modeling and civil engineering and design specialists. The Flood Risk & Resiliency lead works closely with the Water Management leadership, the Market Sector Leader, the NYC BUC leadership and the local NY staff members involved in the strategic and operational

FLOOD RISK & RESILIENCY

CONTACT

Edgar WesterhofFlood Risk & Resiliency - North Americat. 646.246.0155e. edgar.westerhof@arcadis.com

Water can both sustain and destroy, Arcadis understands and effectively manages this critical resource.

management of our Post Sandy resiliency activities. The Flood Risk & Resiliency lead works closely with the managers of our regional resiliency focus areas, such as Norfolk, the Bay Area and South Florida.

A significant part of our Global Value Proposition with regard to Resiliency is derived from our Sandy portfolio, which gives strong ties between our global water and corporate communication leadership, as well as Arcadis Netherlands colleagues involved in Flood Risk Management.

The total ANA and Global core strike team includes approximately 20 colleagues who are directly involved in strategic pursuits, client development, marketing and operational management.

Hugh RobertsManager Urban and Coastal Resiliencyt. 303.885.4433e. hugh.roberts@arcadis.com

Carly FosterGroup Leader Planning, Policy & Economics t. 850.895.4706e. carly.foster@arcadis.com

Paul TschirkyGroup Leader Resiliency Restoration & Protectiont. 225.292.1004e. paul.tschirsky@arcadis.com www.arcadis.com