R25AC00248

The proposed Salt River Project Central Arizona Project (SRP-CAP) interconnection facility (SCIF) will improve regional water system redundancy and flexibility, while increasing the ability to use and move eligible nonproject water supplies stored in the Salt River Federal Reclamation Project (SRFRP) system to delivery points along the CAP canal.

The SCIF would allow for delivery of water from the SRP system into the CAP canal, creating connectivity with the Colorado River system by both direct deliveries and exchanges.

This single interconnection is an efficient means for further development of regional redundancy and flexibility by leveraging the existing 336-mile CAP canal to allow users along the CAP and along the Colorado River to exchange water supplies with users on the SRFRP without building new, lengthy canals and pipelines.

The redundancy and operational flexibility created by the SCIF would create significant public value in managing Central Arizona's water supplies through an increasingly uncertain future of drought and surface water shortages.

The total potential annual water delivery through the SCIF is approximately 360,000 acre-feet (AF), allowing eligible nonproject supplies stored within SRP's reservoir systems and water service area to be moved or exchanged over a broader geographic area.

More than four million AF of surface water has been stored underground in SRP's water service area and in interconnected irrigation districts like the Roosevelt Water Conservation District (RWCD) and the Roosevelt Irrigation District (RID).

The SCIF could allow existing well infrastructure to be used to recover previously stored surface water and allow for exchanges to occur within both CAP's and SRP's water systems.

Other supplies in SRP's system that are eligible to be used outside of SRP's water service area or eligible for storage underground could be moved through the SCIF into the CAP canal to facilitate upstream and downstream deliveries at locations connected to the CAP canal.

The redundancy and operational flexibility created by the SCIF will create significant public value in managing Central Arizona's water supplies, where there are many disadvantaged communities, through an increasingly uncertain future of drought and surface water shortages.

The recipient will complete the design and construction of the SCIF.

Under this agreement, only activities during the construction phase of the project will be funded.

The project will include a pumping plant with a maximum design capacity up to 500 cubic feet per second (CFS) and conduit connecting the SRFRP's South Canal to the Central Arizona Water Conservation District's (CAWCD) Granite Reef Aqueduct.

The facility's intake will be fed by a turnout from the existing South Canal leading to a sedimentation basin and debris screens upstream of the pump station forebay.

The pump station will move water through approximately 3,000 feet of discharge pipelines from the pumping station to the discharge structure on the CAP canal, a vertical lift of nearly 200 feet.

The discharge structure is a 140-foot-long by 98-foot-wide concrete basin with overflow weir.

Salt River Project Agricultural Improvement And Power District

TO FUND LONGER TERM SOLUTIONS TO CONTINUED DROUGHT AND LOW RESERVOIR CONDITIONS.

15.567 - Colorado River System Conservation Pilot

USBR Lower Colorado Basin Region, Boulder City, NV (LC) [DOI - USBR]

USBR Upper Colorado Basin Region, Salt Lake City, UT (UC) [DOI - USBR]

Arizona United States

State-Wide

R-R-LCB-25-005