Soap Creek Watershed Site 26-49 Reservoir Report

Last Updated: December 6, 2025

Soap Creek Watershed Site 26-49, located in the beautiful county of Davis, Iowa, is a flood risk reduction structure designed by the USDA NRCS in 2000.


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Summary

This earth dam, with a height of 28 feet and a length of 475 feet, serves the primary purpose of flood risk reduction for the local community. Situated along the TR-Bear Creek, this structure has a storage capacity of 106 acre-feet and covers a surface area of 4.8 acres, effectively managing a drainage area of 0.37 square miles.

Managed by the Iowa DNR, Soap Creek Watershed Site 26-49 is regulated, permitted, inspected, and enforced to ensure its functionality and safety. With a low hazard potential and a moderate risk assessment, this structure plays a crucial role in mitigating flood risks in the area. Despite not being rated for its condition, this dam serves as a vital infrastructure for water resource management in the region, showcasing the collaborative efforts of local government and federal agencies in safeguarding the community against potential flooding events.

While Soap Creek Watershed Site 26-49 does not have a designated Emergency Action Plan (EAP) or inundation maps, its risk management measures and overall risk assessment are deemed satisfactory. With a controlled spillway and no locks, this structure effectively serves its purpose in reducing flood risks and protecting the surrounding environment. As a valuable asset in water resource management, this earth dam stands as a testament to the importance of proactive measures in safeguarding communities against the impacts of changing climate and increasing water-related challenges.

Year Completed

2000

Dam Length

475

Dam Height

28

River Or Stream

TR- BEAR CREEK

Primary Dam Type

Earth

Surface Area

4.8

Drainage Area

0.37

Nid Storage

106

Hazard Potential

Low

Foundations

Soil

Nid Height

28
       
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.