N & S
Key Takeaway
N & S is classified as low hazard in Wyoming. It was completed in 1946 and is 80 years old. Its primary use is irrigation.
Physical Details
| Dam Height | 20 ft (taller than 21.5% in WY) |
| Dam Length | 1,490 ft |
| Dam Type | Earth |
| Max Storage | 98 acre-ft |
| Normal Storage | 55 acre-ft |
| Surface Area | 7 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 0 cfs |
| Year Completed | 1946 (80 years old) |
| NID ID | WY01147 |
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
USDI - BLM
Federal Government
Nearby Dams
Bischoff
Big Horn, WY
Low Hazard 56 ftEberhard No. 1
Big Horn, WY
Low Hazard 37 ftFlockhart Dam
Big Horn, WY
Low HazardBrown No. 1
Big Horn, WY
Low Hazard 30 ftFive Springs No. 1
Big Horn, WY
Low Hazard 24 ftBrown No. 2
Big Horn, WY
Low Hazard 30 ftBethurem
Big Horn, WY
Low Hazard 15 ftFive Springs No. 2
Big Horn, WY
Low Hazard 32 ftFrequently Asked Questions
What is the hazard classification of N & S?
N & S 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 N & S?
N & S is owned by USDI - BLM (Federal Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was N & S built?
N & S was completed in 1946, making it 80 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 N & S?
N & S 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 N & S?
N & S has a dam height of 20 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 N & S last inspected?
N & S was last inspected on June 23, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.