Des Lacs Dam 4a (Leg B and C)
Key Takeaway
Des Lacs Dam 4a (Leg B and C) is classified as low hazard in North Dakota. It was completed in 1935 and is 91 years old. Its primary use is fish and wildlife pond.
Physical Details
| Dam Height | 10 ft (taller than 20% in ND) |
| Dam Length | 3,951 ft |
| Dam Type | Earth |
| Max Storage | 1.2K acre-ft |
| Normal Storage | 740 acre-ft |
| Surface Area | 214 acres |
| Drainage Area | 615 sq mi |
| Year Completed | 1935 (91 years old) |
| NID ID | ND00534 |
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
USFWS
Federal Government
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Low Hazard 9 ftFrequently Asked Questions
What is the hazard classification of Des Lacs Dam 4a (Leg B and C)?
Des Lacs Dam 4a (Leg B and C) 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 Des Lacs Dam 4a (Leg B and C)?
Des Lacs Dam 4a (Leg B and C) is owned by USFWS (Federal Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Des Lacs Dam 4a (Leg B and C) built?
Des Lacs Dam 4a (Leg B and C) was completed in 1935, making it 91 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 Des Lacs Dam 4a (Leg B and C)?
Des Lacs Dam 4a (Leg B and C) serves the following purposes: Fish And Wildlife Pond. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Des Lacs Dam 4a (Leg B and C)?
Des Lacs Dam 4a (Leg B and C) has a dam height of 10 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 Des Lacs Dam 4a (Leg B and C) last inspected?
Des Lacs Dam 4a (Leg B and C) was last inspected on May 22, 1991. Inspection dates indicate when a formal review occurred, not the results of that inspection.