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Young Professionals SessionYoung Professionals SessionPipelines 101
(Th L Y Did ’t G t i S h l)(The Lessons You Didn’t Get in School)
Texas Water 2010Corpus Christi TexasCorpus Christi, Texas
April 14, 2010
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IntroductionIntroduction
Piping Systems Overview Piping Systems Overview
Planning / Route Selection
Design
Construction
Lessons Learned
Standards References Training Standards, References, Training
Pipelines 101
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Piping SystemsPiping Systems
Pressure Piping Systems Pressure Piping Systems Raw Water Transmission Treated Water Transmission & Distribution Wastewater Force Mains Reuse Water Systems
Gravity Piping Systems Wastewater Collection & Conveyance
ll Storm Water Collection & Conveyance
Pipelines 101
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Planning / Route SelectionPlanning / Route Selection
Typical Pipeline Design Schedule Typical Pipeline Design Schedule
Pipelines 101
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Planning / Route SelectionPlanning / Route Selection
Data Gathering Data Gathering Aerials, Maps (roads, contours,
floodplain, landowner, zoning,d l t il t )development, soils, etc…)
Record drawings/exist. Utilities
Environmental Issues Environmental Issues USACE 404 Permitting / Waters of US Texas Historical Commission (THC) Texas Historical Commission (THC) Endangered Species – US Fish & Wildlife Service TPDES (SWPPP)( )
Pipelines 101
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Planning / Route SelectionPlanning / Route Selection
Alternative Route Development Alternative Route Development Topography & Preliminary Hydraulics Land use (existing/future development) Crossings (roads, creeks, RR, utilities) Constructability & Accessibility
Route Evaluation & Selection Field investigation
( / l l f l ) Costs (ROW/easements, capital, life cycle, O&M) Schedule (construction, permitting delays) Land acquisition (cost & schedule) Land acquisition (cost & schedule)
Pipelines 101
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DesignDesign
Surveying Surveying Right-of-Entry for survey Topographic survey Tie-in existing features Aerial & tree survey Subsurface Utility Engineering (SUE)
Land Acquisition Permanent & temporary easements Easement widths (installation & O&M) Landowner coordination Landowner coordination
Pipelines 101
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DesignDesign
Pipe Materials Pipe Materials Pressure Pipe - Steel, Ductile-Iron,
PVC, HDPE, Concrete Cylinder( t d b d)(pre-stressed, bar-wrapped)
Gravity Pipe – RCP, PVC, HDPE, Fiberglass Pipe Coatings Cement Mortar Tape Pipe Coatings – Cement Mortar, Tape,
Polyurethane, PE Encasement,Epoxy (fusion bonded, hot-applied)
Pipe Linings – Cement Mortar, Polyurethane, PVC, Glass,Epoxy (fusion bonded hot-applied)Epoxy (fusion bonded, hot applied)
Pipelines 101
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DesignDesign
Hydraulics Hydraulics Pressure systems (HGL, pipe class, wall thickness) Gravity systems (velocities, slope, capacity) Pipe size optimization (costs, future flows)
Thrust Restraint Pipe Deflection Trench Design Buoyancy Tunnels, Boring, Directional Drilling, g, g
Pipelines 101
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DesignDesign
Appurtenances Appurtenances Valves (isolation, control, air, blow-off) Manholes, junction boxes & connections Flow meters
Geotechnical Study Creek / River Crossings
Open-cut Aerial / Bridge crossings Siphons
E i t l id ti Environmental considerationsPipelines 101
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DesignDesign
Corrosion Design Corrosion Design External corrosion (concrete & metallic piping) Internal corrosion (gravity wastewater systems)
Surge Control & Analysis Permits
Road Permits (TxDOT, counties, cities) Utilities (gas/petroleum, electric, etc…) Environmental (USACE, TCEQ, NPDES/SWPPP,
floodplain, archeological, mitigation) Other (railroad ADA other local requirements) Other (railroad, ADA, other local requirements)
Pipelines 101
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DesignDesign
Cost Estimating Cost Estimating Material indexes, bid tabs, local/regional trends Contact pipe manufacturers / contractors Alternate bid materials
Construction Sequencing Testing, tie-in connections, system shutdowns Coordination with other projects
Quality Control QC reviews by experienced designers
C t t bilit i Constructability reviewsPipelines 101
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ConstructionConstruction
General Representation General Representation Resident Representation Submittal Review Submittal Review Site Visits Conflict Resolution Conflict Resolution Final Inspection &
WalkthroughWalkthrough
Pipelines 101
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Lessons LearnedLessons Learned
Pipe Embedment / Backfill Compaction Pipe Embedment / Backfill Compaction Difficult to monitor & verify in field Faulty embedment can = catastrophic failure
Pipelines 101
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Lessons LearnedLessons Learned
Field Verify Survey Field Verify Survey Check property lines Check topography/contours Check existing utilities/structures Check for other things that look “fishy”
Utility Conflicts Utilize “Dig-Tess” or “One-Call” during design &
constructionconstruction SUE can prevent many conflicts during construction
Pipelines 101
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Lessons LearnedLessons Learned
Pipe Profile Design Pipe Profile Design Consider low flow HGL Consider velocity in partial
flow sections
Temperature of fluid Creek Crossings
Analyze each creek for properrepair methods during designrepair methods during design
Add bid contingency forflexibility during constructiony g
Pipelines 101
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Lessons LearnedLessons Learned Appurtenances
Place near roads for access Make sure blow-off valves are
l d k t d iplaced near creek or storm drain
Coordinate w/ROW acquisitionBid Alt t ( i t i l ) Bid Alternates (pipe materials) Not always the same design
among pipe materialsamong pipe materials Pipe details, appurtenances,
tunnels, corrosion systems vary
Pipelines 101
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Lessons LearnedLessons Learned
Constructability Constructability Provide adequate easements
for construction & materialsd li / tdelivery/storage
Make sure roads are adequatefor big truck deliveriesfor big truck deliveries
Permitting Issues To avoid constructionTo avoid construction
shut-down - check that allpermits are acquired
Pipelines 101
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Lessons LearnedLessons Learned
Connections & Shutdowns Connections & Shutdowns Hold pre-coordination meeting w/contractor & owner Make sure materials &
supplies on-hand
Corrosion Protection Insure that pipeline continuity
testing is performed
T ti Testing Think through order of testing between sections Source and locations for filling/draining Source and locations for filling/draining
Pipelines 101
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Standards References TrainingStandards, References, Training AWWA Standards & Design Manualsg
Pipe (Concrete, Steel, PVC, DIP, PE, Fiberglass) Valves (Gate, Butterfly, Air Release, Distribution)
Pi I t ll ti & Li i Pipe Installation & Linings AWWA Standards (C-Series) AWWA Design Manuals (M-Series) AWWA Design Manuals (M Series)
Pipelines 101
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Standards References TrainingStandards, References, Training ASTM Standards
PVC Gravity & Pressure Pipe(D-Series, F-Series)
Reinforced Concrete Pipe (RCP) (C76) Reinforced Concrete Pipe (RCP) (C76) PE Pipe (D-3350, F-714)
TCEQ Standards & Rules Chapter 210 – Reclaimed Water Chapter 217 – Domestic Wastewater Systems Chapter 290 – Public Water Systems
Pipelines 101
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Standards References TrainingStandards, References, Training Reference Books
Buried Pipe Design, (A. Moser & S. Folkman) Pipeline Installation: A Manual for Construction
of Buried Pipe (Amster Howard)of Buried Pipe, (Amster Howard) Valve Handbook (P. Skousen)
Manufacturer Catalogs Manufacturer Catalogs Training, Seminars & Conferences
ASCE Design Seminars & Conferences ASCE Pipelines Conference AWWA Seminars & Conferences
Pipelines 101
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Contact InformationContact InformationDavid Bennett, P.E.
Freese and Nichols, Inc. – San Antonio Office4040 Broadway Street
Suite 600San Antonio, Texas 78209
p 210.298.3800 / f [email protected]
www.freese.com
Anne Carrel, P.E.Freese and Nichols, Inc. – Austin Office10814 Jollyville RoadBuilding 4, Suite 100u d g , Su te 00Austin, Texas 78759p 512.617.3100 / f [email protected]
Pipelines 101