Turkey Cr Watershed Site 24-2 Reservoir Report
Last Updated: December 14, 2025
Turkey Cr Watershed Site 24-2 in Cass, Iowa is a local government-owned dam constructed in 1984 by the USDA NRCS for fire protection, stock, and small fish pond purposes.
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Summary
This earth dam stands at a height of 34 feet with a length of 742 feet, creating a storage capacity of 180 acre-feet and a drainage area of 0.39 square miles. Despite being uncontrolled, the spillway of this dam has a significant hazard potential and a moderate risk assessment rating of 3.
Located in Lewis, Iowa, this dam on Turkey Creek is regulated by the Iowa DNR and is subject to state permitting, inspection, and enforcement. Although the condition assessment of the dam is not rated, the last inspection was conducted in April 2006. With a normal storage capacity of 54 acre-feet and a surface area of 9 acres, this dam plays a crucial role in flood risk reduction within the watershed. The dam's primary purpose, combined with its significant hazard potential, highlights the importance of proper maintenance and monitoring to ensure the safety and effectiveness of this vital water resource infrastructure.
Year Completed |
1984 |
Dam Length |
742 |
Dam Height |
34 |
River Or Stream |
TR- TURKEY CR. |
Primary Dam Type |
Earth |
Surface Area |
9 |
Drainage Area |
0.39 |
Nid Storage |
180 |
Hazard Potential |
Significant |
Foundations |
Soil |
Nid Height |
34 |
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 24-2