Zwiener Dam
Zwiener Dam is an earth dam located in Buffalo County, Nebraska, built in 1961. It carries a Low hazard potential classification and has a poor condition assessment.
About Zwiener Dam
The primary purpose of Zwiener 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 Sharon A Cover (private). It impounds the Tr-south Loup River near Pleasanton.
The dam stands 28 feet tall and stretches 230 feet across, creates a reservoir covering 5 acres, has a maximum storage capacity of 332 acre-feet, and collects water from a drainage area of 6 square miles. Completed in 1961, 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 06/11/2019.
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Location
| State | Nebraska |
| County | Buffalo |
| Nearest City | Pleasanton |
| River/Stream | Tr-south Loup River |
| Coordinates | 40.93591, -99.17033 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 28 ft |
| Dam Height | 28 ft |
| Dam Length | 230 ft |
| Year Completed | 1961 (65 years old) |
Storage & Hydraulics
| NID Storage | 332 acre-ft |
| Max Storage | 332 acre-ft |
| Normal Storage | 21 acre-ft |
| Surface Area | 5 acres |
| Drainage Area | 6 sq mi |
| Max Discharge | 2,155 cfs |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Sharon A Cover |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Poor |
| Last Inspection | 06/11/2019 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | NE00599 |
| Federal ID | NE00599 |
| More Info | State Dam Safety Program |