Long Branch 70 is an earth dam located in Nemaha County, Nebraska, built in 1984. It carries a Low hazard potential classification and has a satisfactory condition assessment.
Dam profile
NID height · 40 ft40 ft tall and 862 ft long, taller than 86% 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 70
The primary purpose of Long Branch 70 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 Long Br Big Nemaha River near Humboldt.
The dam stands 40 feet tall and stretches 862 feet across, creates a reservoir covering 16 acres, has a maximum storage capacity of 561 acre-feet, and collects water from a drainage area of 2 square miles. Completed in 1984, the structure is 42 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 05/22/2023.
At 40 feet, this dam is taller than 86% of dams nationwide.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Nebraska |
| County | Nemaha |
| Nearest City | Humboldt |
| River/Stream | Long Br Big Nemaha River |
| Coordinates | 40.26405, -95.99484 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 40 ft |
| Dam Height | 35 ft |
| Dam Length | 862 ft |
| Year Completed | 1984 (42 years old) |
Storage & Hydraulics
| NID Storage | 561 acre-ft |
| Max Storage | 561 acre-ft |
| Normal Storage | 81 acre-ft |
| Surface Area | 16 acres |
| Drainage Area | 2 sq mi |
| Max Discharge | 2,075 cfs |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Nemaha Natural Resources District |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 05/22/2023 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | NE02227 |
| Federal ID | NE02227 |
| More Info | State Dam Safety Program |