Rock Creek 23-a
Rock Creek 23-a is an earth dam located in Pawnee County, Nebraska, built in 1979. It carries a Low hazard potential classification and has a satisfactory condition assessment.
About Rock Creek 23-a
The primary purpose of Rock Creek 23-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 Nemaha Natural Resources District (local government). It impounds the Tr-rock Creek near Steinauer.
The dam stands 33 feet tall and stretches 850 feet across, creates a reservoir covering 15 acres, has a maximum storage capacity of 607 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1979, the structure is 47 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 05/12/2021.
At 33 feet, this dam is taller than 78% of dams nationwide.
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Location
| State | Nebraska |
| County | Pawnee |
| Nearest City | Steinauer |
| River/Stream | Tr-rock Creek |
| Coordinates | 40.22593, -96.31765 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 33 ft |
| Dam Height | 33 ft |
| Dam Length | 850 ft |
| Year Completed | 1979 (47 years old) |
Storage & Hydraulics
| NID Storage | 607 acre-ft |
| Max Storage | 607 acre-ft |
| Normal Storage | 76 acre-ft |
| Surface Area | 15 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 927 cfs |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Nemaha Natural Resources District |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 05/12/2021 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | NE01688 |
| Federal ID | NE01688 |
| More Info | State Dam Safety Program |