Winnebago Creek 41-4 Reservoir Report
Last Updated: December 13, 2025
Winnebago Creek 41-4 is a vital water resource structure located in Richardson, Nebraska, designed by the USDA NRCS.
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Summary
This earth dam, completed in 1978, serves multiple purposes including flood risk reduction and other water management functions. With a height of 36 feet and a length of 750 feet, the dam has a storage capacity of 248 acre-feet and covers a surface area of 9 acres. It is regulated and inspected by the Nebraska Department of Natural Resources, ensuring its safety and effectiveness in managing the flow of Winnebago Creek.
Situated in a low hazard area with a satisfactory condition assessment, Winnebago Creek 41-4 plays a crucial role in water resource management within the region. The dam has a maximum discharge capacity of 977 cubic feet per second, helping to mitigate flood risks and protect downstream areas. With its stone core and soil foundation, the structure has been designed to withstand hydraulic pressures and maintain structural integrity over the years. Regular inspections, the last of which occurred in April 2018, ensure that the dam continues to meet safety standards and operational requirements.
Managed by the local government and supported by the Natural Resources Conservation Service, Winnebago Creek 41-4 exemplifies the collaborative effort to safeguard water resources and enhance climate resilience in the area. The dam's strategic location in the Omaha District and its proximity to the Missouri River make it a critical component of the region's water infrastructure. With a history of successful operation and a commitment to maintaining safety standards, Winnebago Creek 41-4 serves as a model for sustainable water resource management and climate adaptation efforts in Nebraska.
Year Completed |
1978 |
Dam Length |
750 |
Dam Height |
36 |
River Or Stream |
TR-WINNEBAGO CREEK |
Primary Dam Type |
Earth |
Surface Area |
9 |
Hydraulic Height |
36 |
Drainage Area |
0.7 |
Nid Storage |
248 |
Structural Height |
40 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
40 |
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 |
Little Nemaha River At Auburn
|
82cfs |
North Fork Big Nemaha River At Humboldt
|
67cfs |
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 41-4