Maneman-haveman Dam
Maneman-haveman Dam is an earth dam located in Cass County, Nebraska, built in 1997. It carries a Low hazard potential classification and has a satisfactory condition assessment.
About Maneman-haveman Dam
The primary purpose of Maneman-haveman 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 Lower Platte South Natural Resources District (local government). It impounds the Tr-missouri River near Nebraska City.
The dam stands 55 feet tall and stretches 549 feet across, creates a reservoir covering 6 acres, has a maximum storage capacity of 316 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1997, the structure is 29 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 06/22/2021.
At 55 feet, this dam is taller than 94% of dams nationwide.
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Location
| State | Nebraska |
| County | Cass |
| Nearest City | Nebraska City |
| River/Stream | Tr-missouri River |
| Coordinates | 40.89726, -95.84511 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 55 ft |
| Dam Height | 48 ft |
| Dam Length | 549 ft |
| Year Completed | 1997 (29 years old) |
Storage & Hydraulics
| NID Storage | 316 acre-ft |
| Max Storage | 316 acre-ft |
| Normal Storage | 58 acre-ft |
| Surface Area | 6 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 347 cfs |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Lower Platte South Natural Resources District |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 06/22/2021 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | NE02446 |
| Federal ID | NE02446 |
| More Info | State Dam Safety Program |