Monroe Co Roadgrade Site 5.4.0 Reservoir Report

Last Updated: December 13, 2025

Monroe CO Roadgrade Site 5.4.0 is a water resource infrastructure located in Monroe, Iowa, specifically in Eddyville.


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Summary

This site is regulated by the Iowa Department of Natural Resources and has undergone state permitting, inspection, and enforcement. The dam at this location is primarily used for purposes other than flood control, with a low hazard potential and a moderate risk assessment rating.

Constructed in 1984, the earth dam at Monroe CO Roadgrade Site 5.4.0 stands at a height of 26 feet and has a length of 845 feet, providing storage for up to 66 acre-feet of water. Although the dam is uncontrolled, it has a spillway width of 0 feet. The site covers a surface area of 4.4 acres and drains an area of 0.33 square miles, with a maximum discharge of 0 cubic feet per second. The condition assessment of the dam is currently rated as "Not Rated", indicating a need for further evaluation.

Year Completed

1984

Dam Length

845

Dam Height

26

River Or Stream

TR- GRAY S CR.

Primary Dam Type

Earth

Surface Area

4.4

Drainage Area

0.33

Nid Storage

66

Hazard Potential

Low

Foundations

Soil

Nid Height

26
       
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.