Soap Creek Watershed Site 68-33a Reservoir Report

Last Updated: December 6, 2025

Soap Creek Watershed Site 68-33a, located in Monroe County, Iowa, is a local government-owned dam designed by the USDA NRCS and regulated by the Iowa DNR.


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Summary

Completed in 2012, this earth dam stands at 38 feet high and spans 625 feet in length, with a storage capacity of 404 acre-feet. Its primary purpose is flood risk reduction along the Kinser Creek, a tributary of the Soap Creek.

With a low hazard potential and a current condition assessment of "Not Rated," Soap Creek Watershed Site 68-33a serves as a vital infrastructure for managing water resources in the region. The dam has a normal storage capacity of 76 acre-feet and can handle a maximum discharge of 870 cubic feet per second. Despite not having a spillway type specified, the dam features a spillway width of 62 feet to safely release excess water during heavy rainfall events.

As a key component of water resource management in the area, Soap Creek Watershed Site 68-33a plays a crucial role in mitigating flood risks and ensuring the safety of nearby communities. With its state-regulated status, regular inspections, and compliance with enforcement measures, this dam exemplifies effective infrastructure for climate resilience and water conservation efforts in Iowa.

Year Completed

2012

Dam Length

625

Dam Height

38

River Or Stream

Kinser Creek

Primary Dam Type

Earth

Surface Area

12

Drainage Area

1.33

Nid Storage

404

Hazard Potential

Low

Foundations

Soil

Nid Height

38
       
Seasonal Comparison

Weather Forecast

Dam Data Reference

Condition Assessment

Satisfactory
No 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

High
Dams 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.