Waubonsie Cr. Watershed Site 39 Reservoir Report
Last Updated: December 5, 2025
Located in Mills County, Iowa, Waubonsie Cr.
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Summary
Watershed Site 39 is a vital water resource managed by the local government with oversight from the Iowa Department of Natural Resources. This earth dam, completed in 1983 by the USDA NRCS, stands at a height of 40 feet and serves multiple purposes including fire protection, stock watering, small fish pond habitat, and flood risk reduction. With a storage capacity of 205 acre-feet and a drainage area of 0.73 square miles, this structure plays a crucial role in managing water resources in the area.
The dam's low hazard potential and moderate risk assessment make it a key component of flood control and water management strategies in the region. Despite not having a current condition rating, Waubonsie Cr. Watershed Site 39 is regularly inspected and maintained to ensure its effectiveness in safeguarding against potential risks. With no associated structures or outlet gates, this earth dam relies on its uncontrolled spillway to manage water levels and maintain the integrity of the structure.
As part of the Omaha District's water management efforts, Waubonsie Cr. Watershed Site 39 contributes to the overall resilience of the local ecosystem and community. Its strategic location near Bartlett, Iowa, highlights its importance in protecting the surrounding areas from potential water-related hazards. With a focus on sustainability and effective water resource management, this site stands as a testament to the collaborative efforts of various agencies and stakeholders in safeguarding the environment and community welfare.
Year Completed |
1983 |
Dam Length |
800 |
Dam Height |
40 |
River Or Stream |
TR- WAUBONSIE CR. |
Primary Dam Type |
Earth |
Surface Area |
9.4 |
Drainage Area |
0.73 |
Nid Storage |
205 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
40 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
West Nishnabotna River At Randolph
|
512cfs |
Weeping Water Creek At Union
|
20cfs |
Missouri River At Omaha
|
18800cfs |
Missouri River At Nebraska City
|
24100cfs |
East Nishnabotna River At Red Oak
|
305cfs |
Nishnabotna River Above Hamburg
|
1190cfs |
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.
Waubonsie Cr. Watershed Site 39
US 34;US 275 Mills County