Chelsea Reservoir No. 2
Key Takeaway
Chelsea Reservoir No. 2 is classified as low hazard in Oklahoma. It was completed in 1955 and is 71 years old. Its primary use is water supply.
Physical Details
| Dam Height | 35 ft (taller than 72.5% in OK) |
| Dam Length | 800 ft |
| Dam Type | Earth |
| Max Storage | 320 acre-ft |
| Normal Storage | 198 acre-ft |
| Surface Area | 28 acres |
| Max Discharge | 4,900 cfs |
| Year Completed | 1955 (71 years old) |
| NID ID | OK10480 |
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
TOWN OF CHELSEA
Local Government
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Low Hazard 48 ftFrequently Asked Questions
What is the hazard classification of Chelsea Reservoir No. 2?
Chelsea Reservoir No. 2 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 Chelsea Reservoir No. 2?
Chelsea Reservoir No. 2 is owned by TOWN OF CHELSEA (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Chelsea Reservoir No. 2 built?
Chelsea Reservoir No. 2 was completed in 1955, making it 71 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 Chelsea Reservoir No. 2?
Chelsea Reservoir No. 2 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 Chelsea Reservoir No. 2?
Chelsea Reservoir No. 2 has a dam height of 35 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 Chelsea Reservoir No. 2 last inspected?
Chelsea Reservoir No. 2 was last inspected on May 20, 2011. Inspection dates indicate when a formal review occurred, not the results of that inspection.