Harper Dam
Harper Dam is an earth dam located in Lincoln County, Nebraska, built in 1936. It carries a Low hazard potential classification and has a fair condition assessment.
About Harper Dam
The primary purpose of Harper 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 Gb Land & Cattle Inc (private). It impounds the Tr-plum Creek near Farnam.
The dam stands 13 feet tall and stretches 443 feet across, creates a reservoir covering 11 acres, has a maximum storage capacity of 165 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1936, the structure is well-established, with more than 75 years of service.
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 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 10/03/2017.
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Location
| State | Nebraska |
| County | Lincoln |
| Nearest City | Farnam |
| River/Stream | Tr-plum Creek |
| Coordinates | 40.74493, -100.27948 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 13 ft |
| Dam Height | 13 ft |
| Dam Length | 443 ft |
| Year Completed | 1936 (90 years old) |
Storage & Hydraulics
| NID Storage | 165 acre-ft |
| Max Storage | 165 acre-ft |
| Normal Storage | 44 acre-ft |
| Surface Area | 11 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 725 cfs |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | GB Land & Cattle Inc |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Fair |
| Last Inspection | 10/03/2017 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | NE01186 |
| Federal ID | NE01186 |
| More Info | State Dam Safety Program |