Perris Hill Reservoir
Key Takeaway
Perris Hill Reservoir is classified as high hazard in California. It was completed in 1962 and is 64 years old. Its primary use is water supply. High hazard means loss of life is likely if the dam fails — it does not indicate the dam's current condition. Learn more.
Physical Details
| Dam Height | 31 ft (taller than 32.8% in CA) |
| Dam Length | 1,150 ft |
| Dam Type | Other |
| Max Storage | 31 acre-ft |
| Surface Area | 1 acres |
| Year Completed | 1962 (64 years old) |
| NID ID | CA00151 |
Safety Information
Loss of human life is likely if the dam fails.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
City of San Bernardino
Local Government
Nearby Dams
Little Mountain
San Bernardino, CA
High Hazard 28 ftMineral Hot Springs Lake
San Bernardino, CA
High Hazard 54 ftSmall Canyon
San Bernardino, CA
High Hazard 68 ftSilt / Tails
San Bernardino, CA
Low Hazard 10 ftDevils Canyon Dike #1
San Bernardino, CA
High Hazard 15 ftDevil Canyon Second Afterbay
San Bernardino, CA
Low Hazard 40 ftLake Gregory
San Bernardino, CA
High Hazard 90 ftCactus Basin #3
San Bernardino, CA
High Hazard 38 ftFrequently Asked Questions
What is the hazard classification of Perris Hill Reservoir?
Perris Hill Reservoir is classified as High Hazard. Loss of human life is likely if the dam fails. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Perris Hill Reservoir?
Perris Hill Reservoir is owned by City of San Bernardino (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Perris Hill Reservoir built?
Perris Hill Reservoir was completed in 1962, making it 64 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 Perris Hill Reservoir?
Perris Hill Reservoir serves the following purposes: Water Supply. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Perris Hill Reservoir?
Perris Hill Reservoir has a dam height of 31 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 Perris Hill Reservoir last inspected?
Perris Hill Reservoir was last inspected on June 9, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.