West Fork Of Mill Creek Dam Reservoir Report

Last Updated: December 6, 2025

West Fork of Mill Creek Dam, located in Hamilton, Ohio, was completed in 1952 by the US Army Corps of Engineers for the primary purpose of flood risk reduction.


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Summary

The dam, an earth-type structure, stands at a structural height of 106 feet and has a hydraulic height of 92 feet. It has a storage capacity of 11,380 acre-feet and covers a surface area of 183 acres, serving a drainage area of 29 square miles.

Managed by the US Army Corps of Engineers, the dam poses a high hazard potential and undergoes regular inspections and maintenance to ensure its structural integrity. With a risk assessment rating of moderate, the dam has an Emergency Action Plan (EAP) in place and meets guidelines for preparedness. The USACE actively manages flood risks associated with the dam, engaging with local emergency managers and the public to raise awareness and ensure readiness in case of a dam-related emergency.

In the face of unpredictable weather events and potential flood risks, the West Fork of Mill Creek Dam serves as a vital infrastructure for flood control and water management in the region. The US Army Corps of Engineers' dedication to risk management and maintenance ensures the dam's continued functionality and the safety of surrounding communities.

Year Completed

1952

Dam Length

3966

River Or Stream

WEST FORK OF MILL CREEK

Primary Dam Type

Earth

Surface Area

183

Hydraulic Height

92

Drainage Area

29

Nid Storage

11380

Structural Height

106

Outlet Gates

Uncontrolled - 0, Vertical Lift - 3

Hazard Potential

High

Nid Height

106
       
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.