Aowa Creek 43-9a
Aowa Creek 43-9a is an earth dam located in Dixon County, Nebraska, built in 1999. It carries a Low hazard potential classification and has a satisfactory condition assessment.
About Aowa Creek 43-9a
The primary purpose of Aowa Creek 43-9a 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 Lewis & Clark Natural Resources District (local government). It impounds the Tr-aowa Creek near Ponca.
The dam stands 65 feet tall and stretches 1,076 feet across, creates a reservoir covering 40 acres, has a maximum storage capacity of 1,373 acre-feet, and collects water from a drainage area of 4 square miles. Completed in 1999, the structure is 27 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 04/26/2022.
At 65 feet, this dam is taller than 96% of all dams in the United States.
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Location
| State | Nebraska |
| County | Dixon |
| Nearest City | Ponca |
| River/Stream | Tr-aowa Creek |
| Coordinates | 42.63030, -96.85955 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 65 ft |
| Dam Height | 50 ft |
| Dam Length | 1,076 ft |
| Year Completed | 1999 (27 years old) |
Storage & Hydraulics
| NID Storage | 1,373 acre-ft |
| Max Storage | 1,373 acre-ft |
| Normal Storage | 332 acre-ft |
| Surface Area | 40 acres |
| Drainage Area | 4 sq mi |
| Max Discharge | 3,404 cfs |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Lewis & Clark Natural Resources District |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 04/26/2022 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | NE02519 |
| Federal ID | NE02519 |
| More Info | State Dam Safety Program |