Petermann Dam
Petermann Dam is an earth dam located in Gosper County, Nebraska, built in 1970. It carries a Low hazard potential classification and has a poor condition assessment.
About Petermann Dam
The primary purpose of Petermann 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 Irvin & Karen Walbridge (private). It impounds the Tr-dry Creek near Edison.
The dam stands 18 feet tall and stretches 290 feet across, creates a reservoir covering 6 acres, has a maximum storage capacity of 63 acre-feet, and collects water from a drainage area of 2 square miles. Completed in 1970, 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 poor, meaning the dam has recognized safety deficiencies that require remediation to address risks. The most recent inspection on record was 06/27/2022.
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Location
| State | Nebraska |
| County | Gosper |
| Nearest City | Edison |
| River/Stream | Tr-dry Creek |
| Coordinates | 40.40313, -99.83212 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 18 ft |
| Dam Height | 18 ft |
| Dam Length | 290 ft |
| Year Completed | 1970 (56 years old) |
Storage & Hydraulics
| NID Storage | 63 acre-ft |
| Max Storage | 63 acre-ft |
| Normal Storage | 21 acre-ft |
| Surface Area | 6 acres |
| Drainage Area | 2 sq mi |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Irvin & Karen Walbridge |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Poor |
| Last Inspection | 06/27/2022 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | NE03622 |
| Federal ID | NE03622 |
| More Info | State Dam Safety Program |