Don Mannlein Dam
Don Mannlein Dam is an earth dam located in Wheeler County, Nebraska, built in 1983. It carries a Low hazard potential classification.
About Don Mannlein Dam
The primary purpose of Don Mannlein Dam is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Green Valley Ranch Inc (private). It impounds the Clearwater Creek near Clearwater.
The dam stands 10 feet tall and stretches 510 feet across, creates a reservoir covering 16 acres, has a maximum storage capacity of 92 acre-feet, and collects water from a drainage area of 38 square miles. Completed in 1983, the structure is 43 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. The most recent inspection on record was 04/13/2023.
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Location
| State | Nebraska |
| County | Wheeler |
| Nearest City | Clearwater |
| River/Stream | Clearwater Creek |
| Coordinates | 42.06582, -98.45268 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 10 ft |
| Dam Height | 10 ft |
| Dam Length | 510 ft |
| Year Completed | 1983 (43 years old) |
Storage & Hydraulics
| NID Storage | 92 acre-ft |
| Max Storage | 92 acre-ft |
| Normal Storage | 54 acre-ft |
| Surface Area | 16 acres |
| Drainage Area | 38 sq mi |
| Max Discharge | 1,800 cfs |
Ownership & Safety
| Purpose | Irrigation |
| Owner | Green Valley Ranch Inc |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not Rated |
| Last Inspection | 04/13/2023 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | NE02137 |
| Federal ID | NE02137 |
| More Info | State Dam Safety Program |