Wenger Subwatershed Sta 43+88 #M Reservoir Report
Last Updated: December 14, 2025
The Wenger Subwatershed Sta 43+88 #M is a crucial water resource infrastructure located in Woodbury County, Iowa, specifically in the city of Mapleton.
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Summary
Managed by the local government, this structure was designed by USDA NRCS and is regulated by the Iowa Department of Natural Resources. Completed in 1965, this earth dam serves multiple purposes including fire protection, stock, small fish pond, and flood risk reduction, with a storage capacity of 92 acre-feet and a surface area of 4.3 acres.
Situated on the TR-Reynolds Creek, this dam has a height of 36 feet and a length of 572 feet. With a low hazard potential and a moderate risk assessment rating, this structure plays a critical role in water management in the area. Although the condition of the dam is not currently rated, it is regularly inspected, permitted, and enforced by state agencies to ensure its functionality and safety. Overall, Wenger Subwatershed Sta 43+88 #M is an essential component of the local water infrastructure, contributing to flood control, water storage, and environmental protection in the region.
Water resource and climate enthusiasts interested in sustainable water management and infrastructure in Iowa will find Wenger Subwatershed Sta 43+88 #M to be a fascinating case study. With its unique design, purpose, and regulatory oversight, this dam showcases the intersection of human intervention and natural resources in mitigating flood risks and enhancing water availability for various uses. As efforts to address climate change and water scarcity intensify, understanding the role of structures like Wenger Subwatershed Sta 43+88 #M becomes increasingly important for ensuring water security and resilience in the face of evolving environmental challenges.
Year Completed |
1965 |
Dam Length |
572 |
Dam Height |
36 |
River Or Stream |
TR-REYNOLDS CREEK |
Primary Dam Type |
Earth |
Surface Area |
4.3 |
Drainage Area |
0.73 |
Nid Storage |
92 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
36 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Maple River At Mapleton
|
323cfs |
Little Sioux River At Correctionville
|
327cfs |
West Fork Ditch At Hornick
|
80cfs |
Little Sioux River Near Turin
|
1040cfs |
Monona-Harrison Ditch Near Turin
|
158cfs |
Missouri River At Decatur
|
14900cfs |
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.
Wenger Subwatershed Sta 43+88 #M