Overcash Dam
Overcash Dam is an earth dam located in Seward County, Nebraska, built in 1980. It carries a Low hazard potential classification and has a satisfactory condition assessment.
About Overcash Dam
The primary purpose of Overcash 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 Virginia A Overcash (private). It impounds the Tr-middle Oak Creek near Lincoln.
The dam stands 25 feet tall and stretches 250 feet across, creates a reservoir covering 3 acres, has a maximum storage capacity of 54 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 satisfactory, indicating no existing or potential dam safety deficiencies are recognized. The most recent inspection on record was 05/11/2022.
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Location
| State | Nebraska |
| County | Seward |
| Nearest City | Lincoln |
| River/Stream | Tr-middle Oak Creek |
| Coordinates | 40.95838, -96.92469 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 25 ft |
| Dam Height | 25 ft |
| Dam Length | 250 ft |
| Year Completed | 1980 (46 years old) |
Storage & Hydraulics
| NID Storage | 54 acre-ft |
| Max Storage | 54 acre-ft |
| Normal Storage | 10 acre-ft |
| Surface Area | 3 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 317 cfs |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Virginia A Overcash |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 05/11/2022 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | NE04854 |
| Federal ID | NE04854 |
| More Info | State Dam Safety Program |