Rye Grass Swale
Key Takeaway
Rye Grass Swale is classified as low hazard in California. It was completed in 1923 and is 103 years old. Its primary use is water supply.
Physical Details
| Dam Height | 20 ft (taller than 15.3% in CA) |
| Dam Length | 450 ft |
| Dam Type | Earth |
| Max Storage | 530 acre-ft |
| Surface Area | 120 acres |
| Drainage Area | 14 sq mi |
| Year Completed | 1923 (103 years old) |
| NID ID | CA00481 |
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
Private Entity
Private
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What is the hazard classification of Rye Grass Swale?
Rye Grass Swale 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 Rye Grass Swale?
Rye Grass Swale is owned by Private Entity (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Rye Grass Swale built?
Rye Grass Swale was completed in 1923, making it 103 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 Rye Grass Swale?
Rye Grass Swale 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 Rye Grass Swale?
Rye Grass Swale has a dam height of 20 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 Rye Grass Swale last inspected?
Rye Grass Swale was last inspected on May 25, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.