Patterson Dam is an earth dam located in Buffalo County, Nebraska, built in 1937. It carries a Low hazard potential classification.
Dam profile
NID height · 23 ft23 ft tall and 315 ft long. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic embankment section and the water level is illustrative.
About Patterson Dam
The primary purpose of Patterson 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 Kearney Area Solid Waste Agency (local government). It impounds the Tr-wood River near Gibbon.
The dam stands 23 feet tall and stretches 315 feet across, creates a reservoir covering 6 acres, has a maximum storage capacity of 167 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1937, 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. The most recent inspection on record was 06/11/2019.
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Location
| State | Nebraska |
| County | Buffalo |
| Nearest City | Gibbon |
| River/Stream | Tr-wood River |
| Coordinates | 40.73105, -99.17037 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 23 ft |
| Dam Height | 23 ft |
| Dam Length | 315 ft |
| Year Completed | 1937 (89 years old) |
Storage & Hydraulics
| NID Storage | 167 acre-ft |
| Max Storage | 167 acre-ft |
| Normal Storage | 27 acre-ft |
| Surface Area | 6 acres |
| Drainage Area | 0 sq mi |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Kearney Area Solid Waste Agency |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 06/11/2019 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | NE01200 |
| Federal ID | NE01200 |
| More Info | State Dam Safety Program |