South Branch 1-b is an earth dam located in Otoe County, Nebraska, built in 1995. It carries a Low hazard potential classification and has a satisfactory condition assessment.
Dam profile
NID height · 45 ft45 ft tall and 1,408 ft long, taller than 90% 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 South Branch 1-b
The primary purpose of South Branch 1-b 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 Muddy Creek near Talmage.
The dam stands 45 feet tall and stretches 1,408 feet across, creates a reservoir covering 39 acres, has a maximum storage capacity of 1,175 acre-feet, and collects water from a drainage area of 4 square miles. Completed in 1995, the structure is 31 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 05/24/2021.
At 45 feet, this dam is taller than 90% of dams nationwide.
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Location
| State | Nebraska |
| County | Otoe |
| Nearest City | Talmage |
| River/Stream | Muddy Creek |
| Coordinates | 40.61593, -96.31428 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 45 ft |
| Dam Height | 44 ft |
| Dam Length | 1,408 ft |
| Year Completed | 1995 (31 years old) |
Storage & Hydraulics
| NID Storage | 1,175 acre-ft |
| Max Storage | 1,175 acre-ft |
| Normal Storage | 209 acre-ft |
| Surface Area | 39 acres |
| Drainage Area | 4 sq mi |
| Max Discharge | 817 cfs |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Nemaha Natural Resources District |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 05/24/2021 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | NE02453 |
| Federal ID | NE02453 |
| More Info | State Dam Safety Program |