Mule Creek Watershed Sta 48+87 Reservoir Report

Last Updated: December 5, 2025

Mule Creek Watershed Sta 48+87 is a vital earth dam structure located in Mills County, Iowa, designed by USDA NRCS to serve multiple purposes including fire protection, stock, small fish pond, and flood risk reduction.


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Summary

Completed in 1955, the dam stands at a height of 44 feet with a length of 257 feet, providing a storage capacity of 237 acre-feet. With a drainage area of 0.94 square miles, the dam plays a crucial role in managing water resources in the region.

Owned by the local government and regulated by the Iowa DNR, Mule Creek Watershed Sta 48+87 is classified as having a low hazard potential and a moderate risk assessment rating. The dam is inspected, permitted, and enforced by state agencies to ensure its structural integrity and safety. Although the condition assessment is currently not rated, the dam continues to be an essential asset for water resource management in the area.

Located in Anderson, Iowa, along the TR-Mule Creek, this structure is closely monitored and maintained to meet regulatory standards. With a surface area of 3.7 acres and a normal storage capacity of 84 acre-feet, Mule Creek Watershed Sta 48+87 plays a crucial role in protecting the local community from flooding events and providing essential water resources for various purposes.

Year Completed

1955

Dam Length

257

Dam Height

44

River Or Stream

TR-MULE CREEK

Primary Dam Type

Earth

Surface Area

3.7

Drainage Area

0.94

Nid Storage

237

Hazard Potential

Low

Foundations

Soil

Nid Height

44
       
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.