Winnebago Creek 42-5 Reservoir Report
Last Updated: December 13, 2025
Winnebago Creek 42-5, located in Richardson County, Nebraska, is a vital water resource managed by the local government and designed by the USDA NRCS.
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Summary
This earth dam, completed in 1976, serves multiple purposes including flood risk reduction and other water management functions. With a height of 49 feet and a length of 893 feet, this structure provides essential storage capacity with a normal storage of 126 acre-feet and a maximum storage of 635 acre-feet.
This dam on Winnebago Creek plays a crucial role in the area's water management system, with a low hazard potential and a satisfactory condition assessment as of the last inspection in April 2018. The dam's operation is regulated by the Nebraska Department of Natural Resources, ensuring compliance with state permitting, inspection, and enforcement requirements. Despite its age, Winnebago Creek 42-5 continues to effectively mitigate flood risks and support the local ecosystem, demonstrating its resilience and importance in water resource management.
Supported by the Omaha District, this dam contributes to the overall water infrastructure in Nebraska, providing reliable water storage and flood protection for the surrounding community. With its strategic location and design, Winnebago Creek 42-5 stands as a testament to effective collaboration between local government and federal agencies in safeguarding water resources and enhancing climate resilience in the region.
Year Completed |
1976 |
Dam Length |
893 |
Dam Height |
49 |
River Or Stream |
TR-WINNEBAGO CREEK |
Primary Dam Type |
Earth |
Surface Area |
14 |
Hydraulic Height |
47 |
Drainage Area |
2.5 |
Nid Storage |
635 |
Structural Height |
52 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
52 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Missouri River At Rulo
|
26600cfs |
Big Nemaha River At Falls City
|
310cfs |
Tarkio River At Fairfax Mo
|
55cfs |
Nodaway River Near Graham
|
134cfs |
North Fork Big Nemaha River At Humboldt
|
67cfs |
Little Nemaha River At Auburn
|
82cfs |
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.
Winnebago Creek 42-5