Reed Dam Reservoir Report

Last Updated: December 7, 2025

Reed Dam, located in Washington County, Iowa, was completed in 1968 by the USDA NRCS and serves multiple purposes including fire protection, stock watering, and small fish pond management.


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Summary

This private earth dam stands at a height of 30 feet and has a storage capacity of 36 acre-feet, with a normal storage level of 31 acre-feet. Situated on TR-Dutch Creek, the dam's primary source agency is Iowa DNR, indicating state regulation, permitting, inspection, and enforcement.

Despite its low hazard potential, Reed Dam is classified as having a moderate risk level, with a condition assessment of "Not Rated". The spillway type is uncontrolled, and the dam has not been modified in recent years. The surrounding area of the dam covers 4 acres and drains a small 0.16 square mile watershed. This structure, owned privately, is critical for water resource management in the area, ensuring water supply for firefighting, livestock, and aquatic life.

As a key feature of the water infrastructure in Coppock, Iowa, Reed Dam plays a vital role in managing water resources in the region. With its modest size and storage capacity, the dam provides essential services to the community while also being subject to state regulations and oversight by the Iowa DNR. Its construction by the NRCS underscores the importance of collaborative efforts in maintaining and managing water resources for various purposes in a sustainable and efficient manner.

Year Completed

1968

Dam Height

30

River Or Stream

TR- DUTCH CREEK

Primary Dam Type

Earth

Surface Area

4

Drainage Area

0.16

Nid Storage

36

Hazard Potential

Low

Foundations

Soil

Nid Height

30
       
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.