Transcript Colorado River Canal Lining Projects Coachella & All

Colorado River Canal Lining Projects
Coachella & All-American Canals
ASCE Construction Division
West Coast Mega Projects Conference
January 2007
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Colorado River Basin
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Canal Lining Projects Location
Map Key
Existing Lined
Existing Unlined
New Canal
Coachella
Lake
Cahuilla
Salton Sea
Coachella Canal
El Centro
All American Canal
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Canal 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 Project
• Congressional authorization of the Project was under PL 100675, 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 Project
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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 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 Location
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AACLP Alignment
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AACLP 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 Section
Proposed Lined Section
1.75H:1V side slope Reaches 1 & 2
2H:1V side slope Reach 3
150’
Existing Unlined Section
2H:1V side slope
24’ O&M Road
Spoils
50’
130’ +/-
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67,700 Acre-Feet per Year of Water Conserved
from Lining the All-American Canal
SLR
11,500 ac- ft
SDCWA
56,200 ac-ft
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How does lining 78% of the canal result in recovering
97% of seepage water?
• The seepage recovery by reach is as follows:
Reach
ac-ft
Cumulative ac-ft
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50,850
50,850
2
14,700
65,550
3
2,150
67,700
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Project 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 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 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 Photos
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CCLP Project Location
Coachella
Lake
Cahuilla
Map Key
Existing Lined
Existing Unlined
New Canal
El Centro
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CCLP Alignment
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CCLP 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 sections
Proposed Lined Section
1.5H:1V side slope
55’
Existing Unlined Section
2H:1V side slope
20’ O&M Road
Spoils
16’
40’ – 46’
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26,000 Acre-Feet per Year of Water Conserved
from Lining the Coachella Canal
SLR
4,500 ac-ft
SDCWA
21,500 ac-ft
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Design/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 Status
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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 Photos
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SDCWA 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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AACLP Project Organization
All American Canal Coordinating Committee (Voting Members)
• IID – Michael King • SDCWA – Kenneth Steele • Chairman – Joseph Summers
IID/DWR AACLP
Funding Agreement
IID Executive Program Manager
Kirk Dimmitt
Parsons Project Manager
Uli Kappus
Design
Bookman-Edmonston
Project Manager – Wayne Dahl
• Montgomery Watson Harza
• Various Consultants
- Canal Design - Dewatering
- Sedimentation - Soils
- Flow Measurement/
Operations
- Cost Estimating
- Construction Techniques
Design Coordination
Coordinator – Rick Cox
• Geotechnics, Inc.
• TESCO
Participants (Non-Voting)
• Reclamation – Russ Reichelt
• DWR – Chuck Keene
• San Luis Rey – Clyde Romney
• CVWD
• PVID
Construction Management
Construction Manager –
Tim Larson
Environmental Activities
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 Committee
Voting Members
SDCWA
CVWD
IID
SLR
Member Jointly Appointed
Non-Voting Member
USBR
IID prepares O&M plan for All-American Canal
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CCLP Project Organization
Coachella Canal Coordinating Committee (Voting Members)
• CVWD – Patti Schwartz • SDCWA – Kenneth Steele • Chairman – Joseph Summers
SDCWA/DWR
Funding Agreement
CVWD Executive Program Manager
Kirk Dimmitt
CVWD Project Engineer
Dan Charlton
Design/Construction Management
Montgomery Watson Harza – Bookman-Edmonston
Project Manager – Wayne Dahl
• Project Engineer – Janet Atkinson
• Construction Manager – John Dahl
Participants (Non-Voting)
• Reclamation – Russ Reichelt
• DWR – Chuck Keene
• San Luis Rey – Clyde Romney
• IID – Paul Peschel
• PVID
Environmental Activities
Environmental Coordinator – Monica Swartz, PhD
• ASM Affiliates – Cultural Resources
• AMEC – Biological Manager,
Construction Environmental Monitoring
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CCLP OM&R Coordinating Committee
Voting Members
SDCWA
CVWD
SLR
Member Jointly Appointed
Non-Voting Member
USBR
CVWD prepares O&M plan for Coachella Canal
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Thank You
Questions?
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