Long Branch 4
Long Branch 4 is an earth dam located in Nemaha County, Nebraska, built in 1980. It carries a Low hazard potential classification and has a satisfactory condition assessment.
About Long Branch 4
The primary purpose of Long Branch 4 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 37 feet tall and stretches 862 feet across, creates a reservoir covering 16 acres, has a maximum storage capacity of 396 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 05/02/2019.
At 37 feet, this dam is taller than 84% of dams nationwide.
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Location
| State | Nebraska |
| County | Nemaha |
| Nearest City | Humboldt |
| River/Stream | Tr-long Branch |
| Coordinates | 40.31091, -96.06438 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 37 ft |
| Dam Height | 33 ft |
| Dam Length | 862 ft |
| Year Completed | 1980 (46 years old) |
Storage & Hydraulics
| NID Storage | 396 acre-ft |
| Max Storage | 396 acre-ft |
| Normal Storage | 87 acre-ft |
| Surface Area | 16 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 433 cfs |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Nemaha Natural Resources District |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 05/02/2019 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | NE01713 |
| Federal ID | NE01713 |
| More Info | State Dam Safety Program |