Simmons
Key Takeaway
Simmons is classified as low hazard in Wyoming. It was completed in 1962 and is 64 years old. Its primary use is fire protection.
Physical Details
| Dam Height | 25 ft (taller than 39.5% in WY) |
| Dam Length | 499 ft |
| Dam Type | Earth |
| Max Storage | 49 acre-ft |
| Normal Storage | 34 acre-ft |
| Surface Area | 3 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 0 cfs |
| Year Completed | 1962 (64 years old) |
| NID ID | WY01860 |
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
MARK LYMAN REVOCABLE TRUST, MARK LYMAN TRUSTEE
Private
Nearby Dams
Frequently Asked Questions
What is the hazard classification of Simmons?
Simmons 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 Simmons?
Simmons is owned by MARK LYMAN REVOCABLE TRUST, MARK LYMAN TRUSTEE (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Simmons built?
Simmons was completed in 1962, making it 64 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 Simmons?
Simmons serves the following purposes: Fire Protection, Stock, Or Small Fish Pond. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Simmons?
Simmons has a dam height of 25 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 Simmons last inspected?
Simmons was last inspected on September 1, 2021. Inspection dates indicate when a formal review occurred, not the results of that inspection.