TUCSON, AZ (November 24, 2025) — Arizona is undertaking a landmark water infrastructure effort: the Central Arizona Project (CAP) and the Salt River Project (SRP), two of the state’s largest water systems, will be physically connected via a new interconnection facility, projected to cost around $250 million, with a target completion in 2028.
WHAT’S BEING BUILT AND WHY
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- CAP delivers Colorado River water over a long aqueduct system (300+ miles) to about 80% of Arizona’s population.
- SRP draws from the Salt & Verde Rivers in the Phoenix region and serves the greater metro area.
- The new facility — the “SRP–CAP Interconnection Facility” (SCIF) — will allow bidirectional flow between the two systems.
- Connecting the…