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

Anne Carrel, P.E.David Bennett P EDavid Bennett, P.E.

Freese and Nichols, Inc.

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IntroductionIntroduction

Piping Systems Overview Piping Systems Overview

Planning / Route Selection

Design

Construction

Lessons Learned

Standards References Training Standards, References, Training

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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

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Planning / Route SelectionPlanning / Route Selection

Typical Pipeline Design Schedule Typical Pipeline Design Schedule

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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)( )

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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)

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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

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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)

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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

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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)

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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

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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

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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

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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

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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

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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

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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

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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)

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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

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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

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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 210.298.3801dtb@freese.com

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 512.617.3101amc@freese.comwww.freese.com

Pipelines 101