Thorston B-2a
Key Takeaway
Thorston B-2a is classified as low hazard in Nebraska. It was completed in 1954 and is 72 years old. Its primary use is flood risk reduction.
Physical Details
| Dam Height | 23 ft (taller than 39.7% in NE) |
| Dam Length | 900 ft |
| Dam Type | Earth |
| Max Storage | 380 acre-ft |
| Normal Storage | 18 acre-ft |
| Surface Area | 3 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 1,660 cfs |
| Year Completed | 1954 (72 years old) |
| NID ID | NE00047 |
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
Lower Platte North Natural Resources District
Local Government
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Low Hazard 14 ftFrequently Asked Questions
What is the hazard classification of Thorston B-2a?
Thorston B-2a 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 Thorston B-2a?
Thorston B-2a is owned by Lower Platte North Natural Resources District (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Thorston B-2a built?
Thorston B-2a was completed in 1954, making it 72 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 Thorston B-2a?
Thorston B-2a serves the following purposes: Flood Risk Reduction. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Thorston B-2a?
Thorston B-2a has a dam height of 23 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 Thorston B-2a last inspected?
Thorston B-2a was last inspected on June 23, 2021. Inspection dates indicate when a formal review occurred, not the results of that inspection.