Horseshoe Reservoir is losing roughly 500 acre-feet of storage capacity per year to sedimentation, per Bureau of Reclamation estimates. SRP and 23 partners are advancing a $33 million feasibility study for a new Bartlett Dam, with a draft EIS due in July 2026 and a final report targeted for 2027.
Verde River · Salt River Project
Horseshoe Reservoir
Horseshoe Dam · 0.13 MAF capacity at full pool
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About Horseshoe
Horseshoe Reservoir sits behind Horseshoe Dam on the Verde River, north of the Phoenix metro. It is the upper of the two Salt River Project reservoirs on the Verde.
Horseshoe Dam was completed in 1946 and is operated by the Salt River Project. Releases flow into Bartlett Lake immediately downstream and continue to the Verde's confluence with the Salt River near Granite Reef Diversion Dam.
Daily storage and elevation values come from SRP's Daily Water Report. AZMap presents a percent-of-capacity readout.
Recent coverage
Coverage from federal agencies and named news outlets. AZMap is not the publisher.
- Arizona's Bartlett Dam study takes on new urgency for region