Winnebago Creek 41-5 Reservoir Report
Last Updated: December 13, 2025
Winnebago Creek 41-5 is a vital infrastructure located in Richardson, Nebraska, designed by the USDA NRCS and regulated by the Nebraska Department of Natural Resources.
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Summary
Built in 1978, this earth dam stands at a height of 37 feet, with a hydraulic height of 36 feet and a structural height of 43 feet. It serves multiple purposes including flood risk reduction, with a storage capacity of 287 acre-feet and a drainage area of 0.9 square miles.
With a low hazard potential and fair condition assessment, Winnebago Creek 41-5 covers a surface area of 8 acres and has a maximum discharge capacity of 173 cubic feet per second. The dam's primary purpose extends beyond flood control, making it a key asset for water resource management in the region. Despite its age, the dam undergoes regular inspections every five years to ensure its structural integrity and safety compliance. The surrounding community can rest assured that this earth dam is well-maintained and equipped to handle potential emergencies, backed by a comprehensive risk management plan.
Year Completed |
1978 |
Dam Length |
786 |
Dam Height |
37 |
River Or Stream |
TR-WINNEBAGO CREEK |
Primary Dam Type |
Earth |
Surface Area |
8 |
Hydraulic Height |
36 |
Drainage Area |
0.9 |
Nid Storage |
287 |
Structural Height |
43 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
43 |
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 |
North Fork Big Nemaha River At Humboldt
|
67cfs |
Little Nemaha River At Auburn
|
82cfs |
Nodaway River Near Graham
|
134cfs |
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 41-5