Lamb Upper
Key Takeaway
Lamb Upper is classified as low hazard in Wyoming. It was completed in 1953 and is 73 years old. Its primary use is irrigation.
Physical Details
| Dam Height | 28 ft (taller than 55% in WY) |
| Dam Length | 280 ft |
| Dam Type | Earth |
| Max Storage | 171 acre-ft |
| Normal Storage | 88 acre-ft |
| Surface Area | 14 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 618 cfs |
| Year Completed | 1953 (73 years old) |
| NID ID | WY00305 |
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
JOHN ROBERT & BEVERLY K. BALLEW
Private
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Low Hazard 19 ftFrequently Asked Questions
What is the hazard classification of Lamb Upper?
Lamb Upper 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 Lamb Upper?
Lamb Upper is owned by JOHN ROBERT & BEVERLY K. BALLEW (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Lamb Upper built?
Lamb Upper was completed in 1953, making it 73 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 Lamb Upper?
Lamb Upper serves the following purposes: Irrigation, 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 Lamb Upper?
Lamb Upper has a dam height of 28 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 Lamb Upper last inspected?
Lamb Upper was last inspected on August 18, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.