Soap Creek Watershed Site 68-29 Reservoir Report

Last Updated: December 7, 2025

Soap Creek Watershed Site 68-29, located in Monroe County, Iowa, is a significant part of flood risk reduction efforts along the TR-Soap Creek.


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Summary

Constructed in 2006 by the USDA NRCS, this earth dam stands at a height of 29 feet and stretches 540 feet in length. With a storage capacity of 22 acre-feet, the dam serves the primary purpose of flood risk reduction and grade stabilization in the region.

Despite its low hazard potential and moderate risk assessment, Soap Creek Watershed Site 68-29 has not been rated for condition assessment. The dam is equipped with an uncontrolled spillway and is surrounded by stone core and soil foundation. While the dam has not undergone any modifications over the years and does not have an Emergency Action Plan in place, it continues to play a vital role in managing water resources in the area, with a drainage area of 0.1 square miles.

Owned by the local government and falling under the jurisdiction of the Rock Island District, Soap Creek Watershed Site 68-29 remains a crucial asset in the region's water resource management efforts. With its strategic location and design, the dam stands as a testament to collaborative efforts in safeguarding communities from the impacts of flooding and ensuring sustainable water management practices for a resilient future.

Year Completed

2006

Dam Length

540

Dam Height

29

River Or Stream

TR- SOAP CREEK

Primary Dam Type

Earth

Surface Area

1

Drainage Area

0.1

Nid Storage

22

Hazard Potential

Low

Foundations

Soil

Nid Height

29
       
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.