Soap Creek Watershed Site 26-63 Reservoir Report

Last Updated: December 6, 2025

Located in Davis County, Iowa, Soap Creek Watershed Site 26-63 is a local government-owned flood risk reduction structure designed by the USDA NRCS and regulated by the Iowa DNR.


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Summary

Completed in 2004, this earth dam stands at a height of 37 feet and spans a length of 588 feet, with a storage capacity of 558 acre-feet and a drainage area of 1.96 square miles. Situated on the TR-Des Moines River, this site plays a crucial role in mitigating flood risks in the region.

With a low hazard potential and a moderate risk assessment rating, Soap Creek Watershed Site 26-63 serves as a vital infrastructure for managing water resources in the area. Despite its condition not being rated, the structure has been inspected and regulated by state agencies, ensuring its operational effectiveness in flood risk reduction. The site's strategic location and design, in conjunction with the continuous oversight by the Iowa DNR, highlight the importance of sustainable water resource management in addressing climate-related challenges in the region.

As a key component in the water management system of Davis County, Iowa, Soap Creek Watershed Site 26-63 exemplifies the collaborative efforts between local government and state agencies to safeguard the community against flooding events. With its earth dam construction and uncontrolled spillway, this site not only provides flood protection but also contributes to the overall resilience of the region in the face of changing climatic conditions. Through ongoing inspections and regulatory measures, this watershed site underscores the crucial role of infrastructure in adapting to and mitigating the impacts of climate change on water resources.

Year Completed

2004

Dam Length

588

Dam Height

37

River Or Stream

TR- DES MOINES RIVER

Primary Dam Type

Earth

Surface Area

15.8

Drainage Area

1.96

Nid Storage

558

Hazard Potential

Low

Foundations

Soil

Nid Height

37
       
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.