Gruber East Dam Reservoir Report
Nearby: Gruber West Dam Umberger Dam
Last Updated: December 6, 2025
Located in Gosper County, Nebraska, the Gruber East Dam is a local government-owned structure designed by the USDA NRCS and regulated by the Nebraska Department of Natural Resources.
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Summary
Completed in 1967, this Earth-type dam stands at 24 feet tall with a hydraulic height of 20 feet, serving primarily for flood risk reduction on the East Branch of Muddy Creek. With a storage capacity of 198 acre-feet, the dam covers a surface area of 2 acres and drains an area of 4.8 square miles.
Despite its low hazard potential, the Gruber East Dam has been rated as in poor condition based on a 2018 inspection, highlighting the need for maintenance and potential structural improvements. The dam's primary purpose extends beyond flood control to other functions, reflecting its significance in managing water resources in the region. With a maximum discharge capacity of 43 cubic feet per second, the dam plays a crucial role in mitigating flood risks and protecting downstream communities along E Branch Muddy Creek.
As climate change continues to impact precipitation patterns and water availability, the maintenance and effective operation of structures like the Gruber East Dam become increasingly vital for water resource management. With proper oversight and investment, this dam can continue to fulfill its role in safeguarding the local environment and communities from flood events, showcasing the importance of sustainable infrastructure in adapting to a changing climate.
Year Completed |
1967 |
Dam Length |
215 |
Dam Height |
24 |
River Or Stream |
E BR MUDDY CREEK |
Primary Dam Type |
Earth |
Surface Area |
2 |
Hydraulic Height |
20 |
Drainage Area |
4.8 |
Nid Storage |
198 |
Structural Height |
24 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
24 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Spring Creek Nr Overton
|
7cfs |
Platte River Near Overton
|
553cfs |
Republican River At Cambridge
|
60cfs |
Buffalo Creek Nr Overton Nebr
|
4cfs |
Platte R Mid Ch
|
427cfs |
Elm Creek Nr Elm Creek
|
0cfs |
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.
Gruber East Dam
Elwood WMA