Lazy Y No. 1
Key Takeaway
Lazy Y No. 1 is classified as low hazard in Wyoming. It was completed in 1957 and is 69 years old. Its primary use is fire protection.
Physical Details
| Dam Height | 45 ft (taller than 91.2% in WY) |
| Dam Length | 1,069 ft |
| Dam Type | Earth |
| Max Storage | 1.3K acre-ft |
| Normal Storage | 849 acre-ft |
| Surface Area | 70 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 0 cfs |
| Year Completed | 1957 (69 years old) |
| NID ID | WY00604 |
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
POWDER RIVER COAL COMPANY
Private
Nearby Dams
Jfw Corp 1-21 Water Storage Reservoir
Converse, WY
Low Hazard 28 ftStockpond
Campbell, WY
Low Hazard 28 ftMorton No F S 9-231-38
Converse, WY
Low Hazard 26 ftHorse Creek No. 2 Flood Control
Campbell, WY
Low Hazard 47 ftNorth Antelope Shop
Campbell, WY
Low Hazard 29 ftPorcupine
Converse, WY
Low Hazard 35 ftWheaton No. 1
Converse, WY
Low Hazard 26 ftBetty No. 1
Converse, WY
Low Hazard 32 ftFrequently Asked Questions
What is the hazard classification of Lazy Y No. 1?
Lazy Y No. 1 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 Lazy Y No. 1?
Lazy Y No. 1 is owned by POWDER RIVER COAL COMPANY (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Lazy Y No. 1 built?
Lazy Y No. 1 was completed in 1957, making it 69 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 Lazy Y No. 1?
Lazy Y No. 1 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 Lazy Y No. 1?
Lazy Y No. 1 has a dam height of 45 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 Lazy Y No. 1 last inspected?
Lazy Y No. 1 was last inspected on June 13, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.