Mentink Dam 1591
Mentink Dam 1591 is an earth dam located in Polk County, Nebraska, built in 1977. It carries a Low hazard potential classification and has a satisfactory condition assessment.
About Mentink Dam 1591
The primary purpose of Mentink Dam 1591 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 Upper Big Blue Natural Resources District (local government). It impounds the Tr-big Blue River near Surprise.
The dam stands 33 feet tall and stretches 460 feet across, creates a reservoir covering 9 acres, has a maximum storage capacity of 367 acre-feet, and collects water from a drainage area of 5 square miles. Completed in 1977, the structure is 49 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 06/28/2023.
At 33 feet, this dam is taller than 78% of dams nationwide.
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Location
| State | Nebraska |
| County | Polk |
| Nearest City | Surprise |
| River/Stream | Tr-big Blue River |
| Coordinates | 41.11460, -97.52664 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 33 ft |
| Dam Height | 27 ft |
| Dam Length | 460 ft |
| Year Completed | 1977 (49 years old) |
Storage & Hydraulics
| NID Storage | 367 acre-ft |
| Max Storage | 367 acre-ft |
| Normal Storage | 30 acre-ft |
| Surface Area | 9 acres |
| Drainage Area | 5 sq mi |
| Max Discharge | 1,020 cfs |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Upper Big Blue Natural Resources District |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 06/28/2023 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | NE01591 |
| Federal ID | NE01591 |
| More Info | State Dam Safety Program |