Long Branch 3 is an earth dam located in Johnson County, Nebraska, built in 1980. It carries a Low hazard potential classification and has a satisfactory condition assessment.
Dam profile
NID height · 35 ft35 ft tall and 817 ft long, taller than 80% 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 Long Branch 3
The primary purpose of Long Branch 3 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 Tr-long Branch near Humboldt.
The dam stands 35 feet tall and stretches 817 feet across, creates a reservoir covering 13 acres, has a maximum storage capacity of 270 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1980, the structure is 46 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 06/08/2021.
At 35 feet, this dam is taller than 80% of dams nationwide.
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Location
| State | Nebraska |
| County | Johnson |
| Nearest City | Humboldt |
| River/Stream | Tr-long Branch |
| Coordinates | 40.31828, -96.08986 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 35 ft |
| Dam Height | 32 ft |
| Dam Length | 817 ft |
| Year Completed | 1980 (46 years old) |
Storage & Hydraulics
| NID Storage | 270 acre-ft |
| Max Storage | 270 acre-ft |
| Normal Storage | 70 acre-ft |
| Surface Area | 13 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 430 cfs |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Nemaha Natural Resources District |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 06/08/2021 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | NE01721 |
| Federal ID | NE01721 |
| More Info | State Dam Safety Program |