Wolf Creek Subwatershed Site 6-1 Reservoir Report
Last Updated: December 14, 2025
Wolf Creek Subwatershed Site 6-1, located in Woodbury County, Iowa, is a significant water resource managed by the local government with assistance from USDA NRCS.
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Summary
This earth dam, completed in 1971, spans 670 feet and stands at a height of 26 feet, providing fire protection, stock watering, and small fish pond purposes. With a storage capacity of 85 acre-feet and a drainage area of 0.53 square miles, this dam plays a crucial role in flood risk reduction in the area.
Managed by the Iowa DNR, this dam on Wolf Creek is regulated, inspected, and enforced by state authorities to ensure its safety and functionality. The dam's spillway type is uncontrolled, and it has a low hazard potential with a moderate risk assessment rating. Despite being not rated in terms of condition assessment, the dam serves as a vital infrastructure for water resource management in the region. Its location in Turin, Iowa, makes it a focal point for climate and water enthusiasts to study the impact of dams on local ecosystems and water availability.
With a surface area of 4.8 acres and a normal storage capacity of 33 acre-feet, Wolf Creek Subwatershed Site 6-1 is a key component in the water infrastructure of the area. As part of the Rock Island District managed by the USDA NRCS, this dam contributes to the overall water management strategy in the region. Its presence not only ensures water availability for various purposes but also helps mitigate flood risks, showcasing the importance of sustainable water resource management in the face of changing climate patterns.
Year Completed |
1971 |
Dam Length |
670 |
Dam Height |
26 |
River Or Stream |
TR-WOLF CREEK |
Primary Dam Type |
Earth |
Surface Area |
4.8 |
Drainage Area |
0.53 |
Nid Storage |
85 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
26 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Little Sioux River At Correctionville
|
327cfs |
West Fork Ditch At Hornick
|
80cfs |
Maple River At Mapleton
|
323cfs |
Floyd River At James
|
187cfs |
Missouri River At Sioux City
|
13700cfs |
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.
Wolf Creek Subwatershed Site 6-1