Wilson Creek 8-b
Wilson Creek 8-b is an earth dam located in Otoe County, Nebraska, built in 1968. It carries a Significant hazard potential classification and has a fair condition assessment.
About Wilson Creek 8-b
The primary purpose of Wilson Creek 8-b 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 Tr-n Fk Little Nemaha River near Dunbar.
The dam stands 36 feet tall and stretches 890 feet across, creates a reservoir covering 19 acres, has a maximum storage capacity of 556 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1968, the structure is well into its service life at over 50 years old.
This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in loss of life. Its condition is rated fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. The most recent inspection on record was 07/15/2022.
At 36 feet, this dam is taller than 83% of dams nationwide.
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Location
| State | Nebraska |
| County | Otoe |
| Nearest City | Dunbar |
| River/Stream | Tr-n Fk Little Nemaha River |
| Coordinates | 40.66367, -96.06996 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 36 ft |
| Dam Height | 32 ft |
| Dam Length | 890 ft |
| Year Completed | 1968 (58 years old) |
Storage & Hydraulics
| NID Storage | 556 acre-ft |
| Max Storage | 556 acre-ft |
| Normal Storage | 101 acre-ft |
| Surface Area | 19 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 1,831 cfs |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Nemaha Natural Resources District |
| Owner Type | Local Government |
| Hazard Classification | Significant |
| Condition Assessment | Fair |
| Last Inspection | 07/15/2022 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | NE00891 |
| Federal ID | NE00891 |
| More Info | State Dam Safety Program |