Spring Creek 11-a 1296
Spring Creek 11-a 1296 is an earth dam located in Johnson County, Nebraska, built in 1978. It carries a Significant hazard potential classification and has a fair condition assessment.
About Spring Creek 11-a 1296
The primary purpose of Spring Creek 11-a 1296 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 Mans Creek near Brock.
The dam stands 51 feet tall and stretches 1,391 feet across, creates a reservoir covering 46 acres, has a maximum storage capacity of 1,740 acre-feet, and collects water from a drainage area of 5 square miles. Completed in 1978, the structure is 48 years old.
This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in loss of life. Its condition is rated fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. The most recent inspection on record was 11/10/2021.
At 51 feet, this dam is taller than 93% of dams nationwide.
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Location
| State | Nebraska |
| County | Johnson |
| Nearest City | Brock |
| River/Stream | Mans Creek |
| Coordinates | 40.45640, -96.16358 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 51 ft |
| Dam Height | 46 ft |
| Dam Length | 1,391 ft |
| Year Completed | 1978 (48 years old) |
Storage & Hydraulics
| NID Storage | 1,740 acre-ft |
| Max Storage | 1,740 acre-ft |
| Normal Storage | 345 acre-ft |
| Surface Area | 46 acres |
| Drainage Area | 5 sq mi |
| Max Discharge | 660 cfs |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Nemaha Natural Resources District |
| Owner Type | Local Government |
| Hazard Classification | Significant |
| Condition Assessment | Fair |
| Last Inspection | 11/10/2021 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | NE01296 |
| Federal ID | NE01296 |
| More Info | State Dam Safety Program |