C.L. Tilden Park
Key Takeaway
C.L. Tilden Park is classified as high hazard in California. It was completed in 1938 and is 88 years old. Its primary use is other. 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 | 88 ft (taller than 78.9% in CA) |
| Dam Length | 355 ft |
| Dam Type | Earth |
| Max Storage | 268 acre-ft |
| Surface Area | 10 acres |
| Drainage Area | 2 sq mi |
| Year Completed | 1938 (88 years old) |
| NID ID | CA00161 |
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
East Bay Regional Park District
Public Utility
Nearby Dams
San Pablo Clearwell
Contra Costa, CA
Low Hazard 42 ftBriones
Contra Costa, CA
High Hazard 273 ftSan Pablo
Contra Costa, CA
High Hazard 170 ftLake Temescal
Alameda, CA
High Hazard 116 ftLake Orinda
Contra Costa, CA
High Hazard 45 ftSobrante Clearwell
Contra Costa, CA
High Hazard 28 ftPiedmont
Alameda, CA
Low Hazard 64 ftArgyle No. 2
Contra Costa, CA
High Hazard 27 ftFrequently Asked Questions
What is the hazard classification of C.L. Tilden Park?
C.L. Tilden Park 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 C.L. Tilden Park?
C.L. Tilden Park is owned by East Bay Regional Park District (Public Utility). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was C.L. Tilden Park built?
C.L. Tilden Park was completed in 1938, making it 88 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 C.L. Tilden Park?
C.L. Tilden Park serves the following purposes: Other, Recreation, Water Supply. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is C.L. Tilden Park?
C.L. Tilden Park has a dam height of 88 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 C.L. Tilden Park last inspected?
C.L. Tilden Park was last inspected on August 18, 2021. Inspection dates indicate when a formal review occurred, not the results of that inspection.