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Colorado River Canal Lining Projects Coachella & All-American Canals

Colorado River Canal Lining Projects Coachella & All-American Canals

January 2007

ASCE Construction DivisionWest Coast Mega Projects Conference

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Colorado River BasinColorado River Basin

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Canal Lining Projects LocationCanal Lining Projects Location

Coachella

Existing Lined

New CanalExisting Unlined

Map Key

El Centro

Lake Cahuilla

Chocolate Mountains

All American Canal

Coachella Canal

Salton Sea

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Canal Lining ProjectsCanal Lining Projects

• Components of Colorado River Quantification Settlement Agreement

• Settles a water rights dispute and litigation dating to the 1960s

• Provides 93,700 ac-ft/yr of water

• SDCWA will receive 77,700 ac-ft annually

• SLR will receive 16,000 ac-ft annually

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History of the All American Canal Lining ProjectHistory of the All American Canal Lining Project

• Congressional authorization of the Project was under PL 100-675, Title II signed into law by the President on November 17, 1988

• Concrete lining was from just downstream of Pilot Knob (~Station 1170+27) to Drop 4, a total of about 29 miles

• During preparation of the EIS/EIR the Project was modified to run from Station 1250+00 to Drop 3 due to:

– Major environmental issues between Drops 3 & 4 and costs to mitigate such

– Wanted to move the starting point away from Pilot Knob, (a sacred area of the Quechan Indians) to eliminate any potential environmental/cultural conflicts

• Approved the Record of Decision (ROD) on July 29, 1994

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History of the All American Canal Lining ProjectHistory of the All American Canal Lining Project

• Completed and filed EIS/EIR in July 1994• Reclamation undertook a Re-examination and Analysis of 1994

FEIS/EIR and ROD which determined said documents remained current with the proposed action

• California State Legislature passes SB 1765 continuously appropriating $200 million for the two canal projects, with $126 million set aside for the Project. This bill was signed into law by the Governor on September 24, 1998

• California voters in 2003 approve Proposition 50; includes $20 million for the two canal projects; adds $9.65 million to Project for total of $135.65 million

• Quantification Settlement Agreement (QSA) and its related documents signed on October 10, 2003 with the Project a key component to reduce California’s water use to its 4.4 million acre-feet apportionment

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History of the Coachella Canal Lining ProjectHistory of the Coachella Canal Lining Project

• Congressional authorization of the Project was under PL 100-675, Title II signed into law by the President on November 17, 1988

• Concrete lining from Siphon 7 to Siphon 32, a total of about 35 miles

• FEIS/FEIR was completed and filed on April 27, 2001• Record of Decision (ROD) signed on March 27, 2002• Amendment #1 to ROD signed on changing preferred

alternative to refined parallel canal• Key permit was the Corps of Engineers 404

nationwide permit received in June 2004

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AACLP Project LocationAACLP Project Location

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AACLP AlignmentAACLP Alignment

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AACLP Project ElementsAACLP Project Elements

• Construct approximately 23 miles of lined canal adjacent to existing canal

• DWR funding up to $135.65 Million

• Current estimates indicate significant overrun of available funds

• Design is complete.

• Construction is expected to be completed in Spring 2009

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All-American Canal Typical SectionAll-American Canal Typical Section

Proposed Lined Section 1.75H:1V side slope Reaches 1 & 2

2H:1V side slope Reach 3

Existing Unlined Section2H:1V side slope

50’

150’

130’ +/-

Spoils

24’ O&M Road

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67,700 Acre-Feet per Year of Water Conserved from Lining the All-American Canal

67,700 Acre-Feet per Year of Water Conserved from Lining the All-American Canal

SDCWA 56,200 ac-ft

SLR11,500 ac- ft

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How does lining 78% of the canal result in recovering 97% of seepage water?

How does lining 78% of the canal result in recovering 97% of seepage water?

Reach ac-ft Cumulative ac-ft

1 50,850 50,850

2 14,700 65,550

3 2,150 67,700

• The seepage recovery by reach is as follows:

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Project ChallengesProject Challenges

Project team has and is working diligently on a fast-track basis to address a number of design, construction, scheduling, and cost issues to minimize costs (construction, environmental, and operations/maintenance) yet optimize the new canal facilities and the required environmental mitigation.

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Design ChallengesDesign Challenges

• New parallel alignment to minimize canal excavation, rights-of-way, and dewatering

• Reach 1B is most difficult—a number of alternatives were considered. The embankment in-canal alignment was selected

• Project has and will continue to be impacted by increases in fuel, cement, and to a smaller extent steel prices

• Working together to ensure that all state funds required based on current schedule are available

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Current StatusCurrent Status

• Design is complete and the project is preparing to begin construction

• Current schedule indicates construction completion in Spring 2009

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Canal PhotosCanal Photos

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CCLP Project Location

Existing Unlined

Map Key

Existing Lined

New Canal

Salton Sea

Coachella

El Centro

Lake Cahuilla

Chocolate Mountains

All American Canal

Coachella C

anal

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CCLP AlignmentCCLP Alignment

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CCLP Project ElementsCCLP Project Elements

• Construct approximately 35 miles of lined canal adjacent to existing canal

• Construction began October 2004

• Project expected to be completed April 2007

• DWR funding up to $83.65 Million

• Construction awarded for $71,198,900

• Current estimates for environmental and other areas indicate available funds will be exceeded

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Coachella Canal typical sectionsCoachella Canal typical sections

Proposed Lined Section1.5H:1V side slope

Existing Unlined Section2H:1V side slope

16’

55’

40’ – 46’

Spoils

20’ O&M Road

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26,000 Acre-Feet per Year of Water Conserved from Lining the Coachella Canal

26,000 Acre-Feet per Year of Water Conserved from Lining the Coachella Canal

SLR4,500 ac-ft

SDCWA21,500 ac-ft

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Design/Construction ChallengesDesign/Construction Challenges

• With parallel canal, raised the invert of the canal 4 feet (from 2 feet below existing canal invert to 2 feet above existing canal invert)

• Developed a large mammal safety and water source strategy

• Performed ecological value assessment to meet environmental commitments in an economically sound manner

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Current StatusCurrent Status

• Construction is slightly ahead of schedule• Construction is approximately 97% complete• Lining of the canal was completed in August 2006• Tie-ins to existing canal completed in November

2006• Water cutover occurred on December 4, 2006• Total excavation – 5.6 million cubic yards (approx.)• Structural concrete – 37,000 cubic yards (approx.)• Concrete lining – 1.3 million square yards (approx.)• Fencing and electrical work is in progress

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Canal PhotosCanal Photos

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SDCWA FundingSDCWA Funding

• Working together to ensure that all state funds required during the construction phase is available– Will ensure that all state funds are used prior to

the need for SDCWA funds for costs over $83.65 million for CCLP and $135.65 for AACLP

– This will reduce financing costs to SDCWA and the project

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IID/DWR AACLP Funding Agreement

AACLP Project OrganizationAACLP Project Organization

All American Canal Coordinating Committee (Voting Members)• IID – Michael King • SDCWA – Kenneth Steele • Chairman – Joseph Summers

IID Executive Program ManagerKirk Dimmitt

Participants (Non-Voting)• Reclamation – Russ Reichelt• DWR – Chuck Keene• San Luis Rey – Clyde Romney• CVWD• PVID

Parsons Project ManagerUli Kappus

Environmental ActivitiesConstruction Management

Construction Manager – Tim Larson

DesignBookman-Edmonston

Project Manager – Wayne Dahl

Design CoordinationCoordinator – Rick Cox

• Montgomery Watson Harza• Various Consultants - Canal Design - Dewatering - Sedimentation - Soils - Flow Measurement/ Operations - Cost Estimating - Construction Techniques

• Geotechnics, Inc.• TESCO

Environmental Coordinator –

Michel Remington, IID

• AFM Affiliates Cultural Resources

• Dr. Paul Krausman

Large Mammal Surveys

• EcoSystems Restoration Associates Wetlands Enhancement• RECON • Parsons

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AACLP OM&R Coordinating CommitteeAACLP OM&R Coordinating Committee

Non-Voting Member

Voting Members

Member Jointly Appointed

IID SLR

USBR

CVWD

IID prepares O&M plan for All-American Canal

SDCWA

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CCLP Project OrganizationCCLP Project Organization

Coachella Canal Coordinating Committee (Voting Members)• CVWD – Patti Schwartz • SDCWA – Kenneth Steele • Chairman – Joseph Summers

CVWD Executive Program ManagerKirk Dimmitt

Participants (Non-Voting)• Reclamation – Russ Reichelt• DWR – Chuck Keene• San Luis Rey – Clyde Romney• IID – Paul Peschel• PVID

SDCWA/DWR Funding Agreement

CVWD Project EngineerDan Charlton

Design/Construction ManagementMontgomery Watson Harza – Bookman-Edmonston

• Project Engineer – Janet Atkinson• Construction Manager – John Dahl

Environmental Activities

• ASM Affiliates – Cultural Resources

• AMEC – Biological Manager, Construction Environmental Monitoring

Project Manager – Wayne DahlEnvironmental Coordinator – Monica Swartz, PhD

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CCLP OM&R Coordinating CommitteeCCLP OM&R Coordinating Committee

Non-Voting Member

Voting Members

Member Jointly Appointed

SLR

USBR

CVWD

CVWD prepares O&M plan for Coachella Canal

SDCWA

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Thank You

Questions?