Cotesfield Detention Dam
Cotesfield Detention Dam is an earth dam located in Howard County, Nebraska, built in 1963. It carries a Significant hazard potential classification and has a fair condition assessment.
About Cotesfield Detention Dam
The primary purpose of Cotesfield Detention Dam 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 Village Of Cotesfield (local government). It impounds the Tr-north Loup River near Cotesfield.
The dam stands 30 feet tall and stretches 315 feet across, creates a reservoir covering 2 acres, has a maximum storage capacity of 64 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1963, 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 10/25/2022.
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Location
| State | Nebraska |
| County | Howard |
| Nearest City | Cotesfield |
| River/Stream | Tr-north Loup River |
| Coordinates | 41.35859, -98.63960 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 30 ft |
| Dam Height | 24 ft |
| Dam Length | 315 ft |
| Year Completed | 1963 (63 years old) |
Storage & Hydraulics
| NID Storage | 64 acre-ft |
| Max Storage | 64 acre-ft |
| Normal Storage | 2 acre-ft |
| Surface Area | 2 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 1,801 cfs |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Village of Cotesfield |
| Owner Type | Local Government |
| Hazard Classification | Significant |
| Condition Assessment | Fair |
| Last Inspection | 10/25/2022 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | NE00191 |
| Federal ID | NE00191 |
| More Info | State Dam Safety Program |