Wilson Creek 7-a
Wilson Creek 7-a is an earth dam located in Otoe County, Nebraska, built in 1973. It carries a Low hazard potential classification and has a satisfactory condition assessment.
About Wilson Creek 7-a
The primary purpose of Wilson Creek 7-a is flood risk reduction. The dam is designed to control downstream flooding by temporarily storing excess water during storms and releasing it at a controlled rate. The dam is owned by Nemaha Natural Resources District (local government). It impounds the Wilson Creek near Dunbar.
The dam stands 41 feet tall and stretches 1,280 feet across, creates a reservoir covering 66 acres, has a maximum storage capacity of 2,332 acre-feet, and collects water from a drainage area of 6 square miles. Completed in 1973, the structure is well into its service life at over 50 years old.
This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. The most recent inspection on record was 04/13/2023.
At 41 feet, this dam is taller than 88% of dams nationwide.
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Location
| State | Nebraska |
| County | Otoe |
| Nearest City | Dunbar |
| River/Stream | Wilson Creek |
| Coordinates | 40.68334, -96.01063 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 41 ft |
| Dam Height | 38 ft |
| Dam Length | 1,280 ft |
| Year Completed | 1973 (53 years old) |
Storage & Hydraulics
| NID Storage | 2,332 acre-ft |
| Max Storage | 2,332 acre-ft |
| Normal Storage | 421 acre-ft |
| Surface Area | 66 acres |
| Drainage Area | 6 sq mi |
| Max Discharge | 5,901 cfs |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Nemaha Natural Resources District |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 04/13/2023 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | NE00904 |
| Federal ID | NE00904 |
| More Info | State Dam Safety Program |