Sunnymead Ranch
Key Takeaway
Sunnymead Ranch is classified as high hazard in California. It was completed in 1985 and is 41 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 | 41 ft (taller than 49.2% in CA) |
| Dam Length | 780 ft |
| Dam Type | Earth |
| Max Storage | 400 acre-ft |
| Surface Area | 35 acres |
| Year Completed | 1985 (41 years old) |
| NID ID | CA01237 |
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
Sunnymead Ranch Planned Community Association
Private
Nearby Dams
Pigeon Pass
Riverside, CA
High Hazard 40 ftBoxsprings
Riverside, CA
High Hazard 49 ftHj Mills Reclamation
Riverside, CA
Significant Hazard 48 ftHenry J. Mills Reservoir
Riverside, CA
High Hazard 23 ftHenry J. Mills No. 2
Riverside, CA
High Hazard 34 ftSycamore
Riverside, CA
High Hazard 63 ftAlessandro
Riverside, CA
High Hazard 66 ftPerris
Riverside, CA
High Hazard 130 ftFrequently Asked Questions
What is the hazard classification of Sunnymead Ranch?
Sunnymead Ranch 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 Sunnymead Ranch?
Sunnymead Ranch is owned by Sunnymead Ranch Planned Community Association (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Sunnymead Ranch built?
Sunnymead Ranch was completed in 1985, making it 41 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 Sunnymead Ranch?
Sunnymead Ranch serves the following purposes: Water Supply, Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Sunnymead Ranch?
Sunnymead Ranch has a dam height of 41 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 Sunnymead Ranch last inspected?
Sunnymead Ranch was last inspected on January 25, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.