May Dam
May Dam is an earth dam located in Buffalo County, Nebraska, built in 1980. It carries a Low hazard potential classification and has a poor condition assessment.
About May Dam
The primary purpose of May 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 Harold L & Leila V May Trustees (private). It impounds the Tr-wood River.
The dam stands 17 feet tall and stretches 345 feet across, creates a reservoir covering 10 acres, has a maximum storage capacity of 92 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1980, the structure is 46 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 03/25/2020.
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Location
| State | Nebraska |
| County | Buffalo |
| Nearest City | None |
| River/Stream | Tr-wood River |
| Coordinates | 40.83428, -99.14952 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 17 ft |
| Dam Height | 17 ft |
| Dam Length | 345 ft |
| Year Completed | 1980 (46 years old) |
Storage & Hydraulics
| NID Storage | 92 acre-ft |
| Max Storage | 92 acre-ft |
| Normal Storage | 37 acre-ft |
| Surface Area | 10 acres |
| Drainage Area | 0 sq mi |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Harold L & Leila V May Trustees |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Poor |
| Last Inspection | 03/25/2020 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | NE04650 |
| Federal ID | NE04650 |
| More Info | State Dam Safety Program |