El Casco
Key Takeaway
El Casco is classified as low hazard in California. It was completed in 1879 and is 147 years old. Its primary use is water supply.
Physical Details
| Dam Height | 19 ft (taller than 14.1% in CA) |
| Dam Length | 1,200 ft |
| Dam Type | Earth |
| Max Storage | 143 acre-ft |
| Surface Area | 15 acres |
| Year Completed | 1879 (147 years old) |
| NID ID | CA00767 |
Safety Information
No probable loss of human life and low economic/environmental losses expected.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
Rivers & Lands Conservancy
Private
Nearby Dams
Yucaipa No. 1
San Bernardino, CA
High Hazard 42 ftYucaipa No. 2
San Bernardino, CA
High Hazard 49 ftYucaipa No. 3
San Bernardino, CA
Low Hazard 35 ftCrafton Hills
San Bernardino, CA
High Hazard 95 ftSeven Oaks
San Bernardino, CA
High Hazard 550 ftPerris
Riverside, CA
High Hazard 130 ftSunnymead Ranch
Riverside, CA
High Hazard 41 ftPigeon Pass
Riverside, CA
High Hazard 40 ftFrequently Asked Questions
What is the hazard classification of El Casco?
El Casco is classified as Low Hazard. No probable loss of human life and low economic/environmental losses expected. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates El Casco?
El Casco is owned by Rivers & Lands Conservancy (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was El Casco built?
El Casco was completed in 1879, making it 147 years old. Many U.S. dams were built between the 1930s and 1970s during a period of major infrastructure investment.
What is the primary purpose of El Casco?
El Casco serves the following purposes: Water Supply, Irrigation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is El Casco?
El Casco has a dam height of 19 ft. Dam height is measured from the natural streambed at the downstream toe to the top of the dam, and may differ from the visible height.
When was El Casco last inspected?
El Casco was last inspected on April 6, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.