Wenger Subwatershed Sta 16+00 #5 Reservoir Report
Last Updated: December 14, 2025
The Wenger Subwatershed Sta 16+00 #5 is a significant earth dam located in Woodbury County, Iowa, designed by the USDA NRCS in 1965 for fire protection, stock, or small fish pond purposes, as well as flood risk reduction.
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Summary
The dam has a height of 38 feet, a length of 447 feet, and a storage capacity of 41 acre-feet, serving the TR-REYNOLDS CREEK tributary. It is regulated by the Iowa DNR and is under the jurisdiction of the state with permitting, inspection, and enforcement processes in place.
With a low hazard potential and a moderate risk assessment rating, the Wenger Subwatershed Sta 16+00 #5 plays an essential role in water resource management in the area. The dam has not been rated for its condition, but it continues to serve its purposes effectively, contributing to the overall resilience of the watershed. The structure is part of the federal agency Natural Resources Conservation Service's portfolio and is located in the Rock Island District.
The Wenger Subwatershed Sta 16+00 #5 is a key asset in the Mapleton area, providing essential water resource management functions and supporting the local community's needs. With its strategic location, design, and purpose, the dam represents a crucial piece of infrastructure for maintaining water quality, flood control, and ecosystem health in the region. Climate and water resource enthusiasts will appreciate the detailed data and regulatory oversight that ensures the safety and effectiveness of this important structure.
Year Completed |
1965 |
Dam Length |
447 |
Dam Height |
38 |
River Or Stream |
TR-REYNOLDS CREEK |
Primary Dam Type |
Earth |
Surface Area |
2.3 |
Drainage Area |
0.13 |
Nid Storage |
41 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
38 |
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 16+00 #5