West Wolf Creek Subwatershed Site 26 Reservoir Report
Last Updated: December 15, 2025
West Wolf Creek Subwatershed Site 26 in Woodbury, Iowa is a state-regulated dam with a low hazard potential and a moderate risk assessment.
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Summary
Owned by the local government, this earth dam completed in 1995 serves multiple purposes including fire protection, stock, and small fish pond management, as well as flood risk reduction. With a drainage area of 0.42 square miles and a storage capacity of 97 acre-feet, this dam plays a crucial role in managing water resources in the area.
Located in the city of Missouri River, this dam on TR- Wolf Creek is designed by USDA NRCS and falls under the jurisdiction of the Iowa Department of Natural Resources. With a structural height of 33 feet and a length of 463 feet, this dam features an uncontrolled spillway and is primarily constructed using soil as its foundation material. Despite being not inspected or rated for its condition, the dam is continuously monitored for its operational and regulatory compliance, ensuring its effectiveness in mitigating flood risks and providing essential water management services to the community.
West Wolf Creek Subwatershed Site 26 demonstrates the importance of sustainable water resource management in the face of changing climate patterns. With a focus on flood risk reduction and multi-purpose functionality, this dam stands as a vital infrastructure asset in safeguarding the local environment and enhancing water security for the residents of Woodbury County, Iowa.
Year Completed |
1995 |
Dam Length |
463 |
Dam Height |
33 |
River Or Stream |
TR- WOLF CREEK |
Primary Dam Type |
Earth |
Surface Area |
5.6 |
Drainage Area |
0.42 |
Nid Storage |
97 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
33 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Little Sioux River At Correctionville
|
327cfs |
West Fork Ditch At Hornick
|
80cfs |
Floyd River At James
|
187cfs |
Missouri River At Sioux City
|
14400cfs |
Maple River At Mapleton
|
323cfs |
Perry Creek Near Milnerville
|
25cfs |
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.
West Wolf Creek Subwatershed Site 26