Spring Creek 18-a is an earth dam located in Dawson County, Nebraska, built in 1976. It carries a Low hazard potential classification and has a satisfactory condition assessment.
Dam profile
NID height · 20 ft20 ft tall and 740 ft long. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic embankment section and the water level is illustrative.
About Spring Creek 18-a
The primary purpose of Spring Creek 18-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 Dawson County (local government). It impounds the Tr-stump Ditch near Cozad.
The dam stands 20 feet tall and stretches 740 feet across, creates a reservoir covering 11 acres, has a maximum storage capacity of 492 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1976, the structure is 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 11/03/2023.
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Location
| State | Nebraska |
| County | Dawson |
| Nearest City | Cozad |
| River/Stream | Tr-stump Ditch |
| Coordinates | 41.00885, -100.00930 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 20 ft |
| Dam Height | 20 ft |
| Dam Length | 740 ft |
| Year Completed | 1976 (50 years old) |
Storage & Hydraulics
| NID Storage | 492 acre-ft |
| Max Storage | 492 acre-ft |
| Normal Storage | 22 acre-ft |
| Surface Area | 11 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 870 cfs |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Dawson County |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 11/03/2023 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | NE01729 |
| Federal ID | NE01729 |
| More Info | State Dam Safety Program |