Big Indian Creek 12-a is an earth dam located in Gage County, Nebraska, built in 1964. It carries a Significant hazard potential classification and has a satisfactory condition assessment.
Dam profile
NID height · 34 ft34 ft tall and 775 ft long, taller than 78% of U.S. dams with a recorded height. 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 Big Indian Creek 12-a
The primary purpose of Big Indian Creek 12-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 Big Blue Natural Resources District (local government). It impounds the Tr-sicily Creek near Wymore.
The dam stands 34 feet tall and stretches 775 feet across, creates a reservoir covering 9 acres, has a maximum storage capacity of 492 acre-feet, and collects water from a drainage area of 2 square miles. Completed in 1964, the structure is well into its service life at over 50 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 satisfactory, indicating no existing or potential dam safety deficiencies are recognized. The most recent inspection on record was 07/20/2021.
At 34 feet, this dam is taller than 78% of dams nationwide.
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Location
| State | Nebraska |
| County | Gage |
| Nearest City | Wymore |
| River/Stream | Tr-sicily Creek |
| Coordinates | 40.14325, -96.75981 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 34 ft |
| Dam Height | 30 ft |
| Dam Length | 775 ft |
| Year Completed | 1964 (62 years old) |
Storage & Hydraulics
| NID Storage | 492 acre-ft |
| Max Storage | 492 acre-ft |
| Normal Storage | 47 acre-ft |
| Surface Area | 9 acres |
| Drainage Area | 2 sq mi |
| Max Discharge | 2,279 cfs |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Lower Big Blue Natural Resources District |
| Owner Type | Local Government |
| Hazard Classification | Significant |
| Condition Assessment | Satisfactory |
| Last Inspection | 07/20/2021 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | NE00950 |
| Federal ID | NE00950 |
| More Info | State Dam Safety Program |