Robles Dam


Robles Dam

  • Casitas Reservoir is a part of the U. S~ Bureau of Reclamation’s (USBR) Ventura River development project (see Figure i).

  • In addition to Casitas Reservoir, the project includes RoblesDiversion Dam, Robl~s Casitas Canal and a conduit system.

  • Casitas Dam, completed in 1958, is in Coyote Creek, a tributary to they~ntura River. The storage capacity is 250,000 acre-feet covering2,700 acres and it receives inflow from both the Ventura River and Coyote Creek watersheds.

  • Robles Diversion Dam diverts water from the Ventura River into Casitas during the rainy season (December through February).

  • A conduit system conveys Casihas water for 36 miles to populated areas in Ventura County.

  • Casitas is operated by the Ventura Riyer Municipal Water District under a permanent contract with the U.S. Bureau of Reclamation.

RegionFacilities in Mid-Pacific | Mid-Pacific Home Page
ProjectVentura River
Dam Type
WatercourseVentura River
Original Construction1958
Modified Construction
National ID Number
Hydrologic Unit Code18070101

Structural Height24.0 ft
Hydraulic Height (Normal Operating Depth at Dam)13.0 ft
Top Parapet (Elevation)
Spillway Crest Elevation
Crest Elevation765.0 ft
Crest Length530.0 ft
Crest Width
Base Width
Volume of Dam Construction Materials
Streambed at Dam Axis
Top of Exclusive Flood Control Pool (Elevation)
Top of Joint Use Pool (Elevation)
Top of Active Conservation Pool (Elevation)
Top of Inactive Conservation Pool (Elevation)
Top of Dead Storage Pool (Elevation)

Hydraulics & Hydrology
Total Water Storage at Elevation
Maximum Water Surface Elevation
Normal Water Surface Elevation
Spillway Type
Auxiliary Spillway
Spillway Capacity at Elevation
Auxiliary Spillway Capacity at Elevation
Uncontrolled Spillway Capacity at Elevation
Outlet Works Capacity at Elevation
Diversion Capacity at Elevation
Drainage Area
Hydrometeorological Report (HMR)
Probable Maximum Flood (PMF) Report

Contact Information
OwnerNo value defined
OperatorNo value defined

Last updated: Jun 04, 2009