Turkey Cr Watershed Site 33 Reservoir Report
Last Updated: December 13, 2025
Turkey Cr Watershed Site 33 in Cass County, Iowa, is a dam structure managed by the local government with regulatory oversight from the Iowa Department of Natural Resources.
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Summary
Built in 1972 by the USDA NRCS, this Earth-type dam stands at 35 feet high and spans 454 feet in length, serving multiple purposes including fire protection, stock, small fish pond, and flood risk reduction. With a storage capacity of 105 acre-feet and a drainage area of 0.14 square miles, the dam has a low hazard potential and a moderate risk assessment rating.
Located in Wiota along the TR-Turkey Creek, this watershed site plays a crucial role in managing water resources and protecting against potential flooding in the area. Despite being uncontrolled, the spillway width and maximum discharge information are not available, but the dam has a capacity to hold 81 acre-feet of normal storage. The site has not been inspected or assessed for condition, but it remains a key infrastructure for the local community, with emergency preparedness measures likely in place to mitigate any potential risks associated with the dam structure.
Overall, Turkey Cr Watershed Site 33 is a vital piece of water resource infrastructure in Iowa, designed to serve various purposes while also reducing flood risks in the region. Managed by the local government and constructed by the USDA NRCS, this dam structure stands as a testament to the collaborative efforts to safeguard water resources and manage climate-related challenges. Despite its low hazard potential, ongoing monitoring and maintenance are essential to ensure the continued safety and effectiveness of this important watershed site.
Year Completed |
1972 |
Dam Length |
454 |
Dam Height |
35 |
River Or Stream |
TR-TURKEY CREEK |
Primary Dam Type |
Earth |
Surface Area |
6 |
Drainage Area |
0.14 |
Nid Storage |
105 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
35 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
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.
Turkey Cr Watershed Site 33