Larson Dam; John M
Key Takeaway
Larson Dam; John M is classified as low hazard in North Dakota. It was completed in 1950 and is 76 years old. Its primary use is fish and wildlife pond.
Physical Details
| Dam Height | 12 ft (taller than 32.4% in ND) |
| Dam Length | 1,000 ft |
| Dam Type | Earth |
| Max Storage | 200 acre-ft |
| Normal Storage | 65 acre-ft |
| Surface Area | 25 acres |
| Drainage Area | 6 sq mi |
| Year Completed | 1950 (76 years old) |
| NID ID | ND00500 |
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 M Larson
Private
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Low Hazard 12 ftFrequently Asked Questions
What is the hazard classification of Larson Dam; John M?
Larson Dam; John M 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 Larson Dam; John M?
Larson Dam; John M is owned by John M Larson (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Larson Dam; John M built?
Larson Dam; John M was completed in 1950, making it 76 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 Larson Dam; John M?
Larson Dam; John M serves the following purposes: Fish And Wildlife Pond, 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 Larson Dam; John M?
Larson Dam; John M has a dam height of 12 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.