Clear Fork Reservoir Dam Reservoir Report

Last Updated: December 5, 2025

Clear Fork Reservoir Dam, located in Lexington, Ohio, is a crucial structure managed by the local government for water supply purposes.


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Summary

Built in 1949 by THE JENNINGS-LAWRENCE CO., the dam stands at a height of 44 feet and spans a length of 3420 feet along the Clear Fork Mohican River. With a storage capacity of 26,532 acre-feet and a drainage area of 34.67 square miles, the dam plays a vital role in regulating water flow and maintaining water levels for the surrounding area.

Despite its importance, the Clear Fork Reservoir Dam is classified as having a high hazard potential and a poor condition assessment, as of the last inspection in November 2019. The dam is regulated by the Department of Natural Resources in Ohio and undergoes regular inspections to ensure its structural integrity and safety. With a maximum discharge capacity of 46,394 cubic feet per second, the dam's role in flood control and water management is crucial for the community it serves. Enthusiasts of water resources and climate will find the Clear Fork Reservoir Dam to be a significant structure in the region, with its rich history and essential role in water supply management.

Year Completed

1949

Dam Length

3420

Dam Height

44

River Or Stream

CLEAR FORK MOHICAN RIVER

Primary Dam Type

Earth

Surface Area

1024

Drainage Area

34.67

Nid Storage

26532

Hazard Potential

High

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.