Long Branch 7 Reservoir Report
Nearby: Long Branch 1-1 Long Branch 61
Last Updated: December 6, 2025
Long Branch 7 is a locally owned earth dam in Humboldt, Nebraska, designed by USDA NRCS and completed in 1990 for flood risk reduction on Long Branch Creek.
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Summary
The dam stands at 44 feet tall with a length of 1600 feet, providing a maximum storage capacity of 871 acre-feet and normal storage of 94 acre-feet. With a satisfactory condition assessment and low hazard potential, Long Branch 7 is regulated and inspected by the Nebraska Department of Natural Resources, ensuring its continued functionality and safety.
Located in Nemaha County, Nebraska, Long Branch 7 serves as a vital infrastructure for managing water resources in the region. The dam has a drainage area of 2.9 square miles and can handle a maximum discharge of 2079 cubic feet per second. Despite its modest surface area of 19 acres, the dam plays a crucial role in protecting downstream communities from flooding events. The dam's primary purpose is flood risk reduction, reflecting its importance in mitigating the impacts of extreme weather events in the area.
Managed by local government authorities and meeting state permitting and inspection requirements, Long Branch 7 exemplifies the collaborative efforts to safeguard water resources and enhance climate resilience in Nebraska. As a key component of flood protection infrastructure, the dam contributes to the overall water management strategy in the region. With its solid construction and regular maintenance, Long Branch 7 demonstrates a commitment to sustainable water resource management and climate adaptation in the face of changing environmental conditions.
Year Completed |
1990 |
Dam Length |
1600 |
Dam Height |
38 |
River Or Stream |
TR-LONG BRANCH CREEK |
Primary Dam Type |
Earth |
Surface Area |
19 |
Hydraulic Height |
38 |
Drainage Area |
2.9 |
Nid Storage |
871 |
Structural Height |
44 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
44 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
North Fork Big Nemaha River At Humboldt
|
67cfs |
Little Nemaha River At Auburn
|
82cfs |
Turkey C Nr Seneca
|
15cfs |
Big Nemaha River At Falls City
|
310cfs |
Missouri River At Nebraska City
|
22500cfs |
Nishnabotna River Above Hamburg
|
1350cfs |
Dam Data Reference
Condition Assessment
SatisfactoryNo existing or potential dam safety deficiencies are recognized. Acceptable performance is expected under all loading conditions (static, hydrologic, seismic) in accordance with the minimum applicable state or federal regulatory criteria or tolerable risk guidelines.
Fair
No existing dam safety deficiencies are recognized for normal operating conditions. Rare or extreme hydrologic and/or seismic events may result in a dam safety deficiency. Risk may be in the range to take further action. Note: Rare or extreme event is defined by the regulatory agency based on their minimum
Poor A dam safety deficiency is recognized for normal operating conditions which may realistically occur. Remedial action is necessary. POOR may also be used when uncertainties exist as to critical analysis parameters which identify a potential dam safety deficiency. Investigations and studies are necessary.
Unsatisfactory
A dam safety deficiency is recognized that requires immediate or emergency remedial action for problem resolution.
Not Rated
The dam has not been inspected, is not under state or federal jurisdiction, or has been inspected but, for whatever reason, has not been rated.
Not Available
Dams for which the condition assessment is restricted to approved government users.
Hazard Potential Classification
HighDams assigned the high hazard potential classification are those where failure or mis-operation will probably cause loss of human life.
Significant
Dams assigned the significant hazard potential classification are those dams where failure or mis-operation results in no probable loss of human life but can cause economic loss, environment damage, disruption of lifeline facilities, or impact other concerns. Significant hazard potential classification dams are often located in predominantly rural or agricultural areas but could be in areas with population and significant infrastructure.
Low
Dams assigned the low hazard potential classification are those where failure or mis-operation results in no probable loss of human life and low economic and/or environmental losses. Losses are principally limited to the owner's property.
Undetermined
Dams for which a downstream hazard potential has not been designated or is not provided.
Not Available
Dams for which the downstream hazard potential is restricted to approved government users.
Long Branch 7