Black Rock Creek
Key Takeaway
Black Rock Creek is classified as low hazard in California. It was completed in 1925 and is 101 years old. Its primary use is water supply.
Physical Details
| Dam Height | 54 ft (taller than 62.8% in CA) |
| Dam Length | 150 ft |
| Dam Type | Earth |
| Max Storage | 30 acre-ft |
| Surface Area | 4 acres |
| Drainage Area | 3 sq mi |
| Year Completed | 1925 (101 years old) |
| NID ID | CA00693 |
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
White Rock Club, Inc.
Private
Nearby Dams
Frequently Asked Questions
What is the hazard classification of Black Rock Creek?
Black Rock Creek 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 Black Rock Creek?
Black Rock Creek is owned by White Rock Club, Inc. (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Black Rock Creek built?
Black Rock Creek was completed in 1925, making it 101 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 Black Rock Creek?
Black Rock Creek 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 Black Rock Creek?
Black Rock Creek has a dam height of 54 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 Black Rock Creek last inspected?
Black Rock Creek was last inspected on September 13, 2023. Inspection dates indicate when a formal review occurred, not the results of that inspection.