Upper Salt Creek 17-a
Upper Salt Creek 17-a is an earth dam located in Lancaster County, Nebraska, built in 1966. It carries a Low hazard potential classification and has a satisfactory condition assessment.
About Upper Salt Creek 17-a
The primary purpose of Upper Salt Creek 17-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 South Natural Resources District (local government). It impounds the Tr-wittstruck Creek near Roca.
The dam stands 35 feet tall and stretches 1,237 feet across, creates a reservoir covering 29 acres, has a maximum storage capacity of 786 acre-feet, and collects water from a drainage area of 2 square miles. Completed in 1966, the structure is well into its service life at over 50 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 35 feet, this dam is taller than 82% of dams nationwide.
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Location
| State | Nebraska |
| County | Lancaster |
| Nearest City | Roca |
| River/Stream | Tr-wittstruck Creek |
| Coordinates | 40.64695, -96.76365 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 35 ft |
| Dam Height | 31 ft |
| Dam Length | 1,237 ft |
| Year Completed | 1966 (60 years old) |
Storage & Hydraulics
| NID Storage | 786 acre-ft |
| Max Storage | 786 acre-ft |
| Normal Storage | 142 acre-ft |
| Surface Area | 29 acres |
| Drainage Area | 2 sq mi |
| Max Discharge | 1,011 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 | 05/12/2021 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | NE00535 |
| Federal ID | NE00535 |
| More Info | State Dam Safety Program |