Flat
Key Takeaway
Flat is classified as low hazard in Wyoming. It was completed in 1914 and is 112 years old. Its primary use is irrigation.
Physical Details
| Dam Height | 10 ft (taller than 3.3% in WY) |
| Dam Length | 1,200 ft |
| Dam Type | Earth |
| Max Storage | 149 acre-ft |
| Normal Storage | 112 acre-ft |
| Surface Area | 48 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 0 cfs |
| Year Completed | 1914 (112 years old) |
| NID ID | WY00901 |
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
CONTURA WYOMING LAND LLC
Private
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Low Hazard 32 ftFrequently Asked Questions
What is the hazard classification of Flat?
Flat 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 Flat?
Flat is owned by CONTURA WYOMING LAND LLC (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Flat built?
Flat was completed in 1914, making it 112 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 Flat?
Flat serves the following purposes: Irrigation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Flat?
Flat has a dam height of 10 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 Flat last inspected?
Flat was last inspected on July 24, 2020. Inspection dates indicate when a formal review occurred, not the results of that inspection.