Cottonwood Creek 22-a
Cottonwood Creek 22-a is an earth dam located in Saunders County, Nebraska, built in 1987. It carries a Low hazard potential classification and has a satisfactory condition assessment.
About Cottonwood Creek 22-a
The primary purpose of Cottonwood Creek 22-a 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 North Natural Resources District (local government). It impounds the Tr-cottonwood Creek near Wahoo.
The dam stands 49 feet tall and stretches 1,253 feet across, creates a reservoir covering 76 acres, has a maximum storage capacity of 2,556 acre-feet, and collects water from a drainage area of 5 square miles. Completed in 1987, the structure is 39 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 06/14/2022.
At 49 feet, this dam is taller than 92% of dams nationwide.
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Location
| State | Nebraska |
| County | Saunders |
| Nearest City | Wahoo |
| River/Stream | Tr-cottonwood Creek |
| Coordinates | 41.26626, -96.69596 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 49 ft |
| Dam Height | 42 ft |
| Dam Length | 1,253 ft |
| Year Completed | 1987 (39 years old) |
Storage & Hydraulics
| NID Storage | 2,556 acre-ft |
| Max Storage | 2,556 acre-ft |
| Normal Storage | 509 acre-ft |
| Surface Area | 76 acres |
| Drainage Area | 5 sq mi |
| Max Discharge | 1,962 cfs |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Lower Platte North Natural Resources District |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 06/14/2022 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | NE02244 |
| Federal ID | NE02244 |
| More Info | State Dam Safety Program |