Long Branch 61 Reservoir Report
Last Updated: December 6, 2025
Long Branch 61, located in Humboldt, Nebraska, is a local government-owned earth dam designed by the USDA NRCS with a primary purpose of flood risk reduction.
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Summary
Completed in 1986, this dam stands at a height of 31 feet and has a hydraulic height of 29 feet, with a normal storage capacity of 61 acre-feet. The dam, constructed with stone core and soil foundation, spans a length of 790 feet and has a drainage area of 1.3 square miles.
Managed by the Nebraska Department of Natural Resources, Long Branch 61 is regulated, permitted, inspected, and enforced by state authorities. With a low hazard potential and satisfactory condition assessment, the dam has a five-year inspection frequency to ensure its structural integrity and safety. The last inspection conducted in May 2019 deemed the dam to be in satisfactory condition, highlighting its importance in mitigating flood risks in the area.
Situated along the Long Branch Creek and within the Omaha District, Long Branch 61 serves as a vital infrastructure for flood control and water resource management in Nemaha County, Nebraska. With its strategic location and design, this dam plays a crucial role in safeguarding the community from potential flooding events and exemplifies the collaborative efforts between federal and state agencies in enhancing water resilience and climate adaptation measures.
Year Completed |
1986 |
Dam Length |
790 |
Dam Height |
31 |
River Or Stream |
TR-LONG BRANCH CREEK |
Primary Dam Type |
Earth |
Surface Area |
13 |
Hydraulic Height |
29 |
Drainage Area |
1.3 |
Nid Storage |
341 |
Structural Height |
35 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
35 |
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 |
Big Blue R At Barneston Nebr
|
131cfs |
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 61