Hunters Run Structure No. R-23 Reservoir Report

Last Updated: December 5, 2025

Hunters Run Structure No.


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Summary

R-23 is a vital flood risk reduction infrastructure located in Fairfield, Ohio, on a tributary to the Hocking River. Constructed in 1960 by the USDA NRCS, this earth dam stands at a height of 40.1 feet and has a storage capacity of 91.6 acre-feet, with a normal storage level of 53.1 acre-feet. With a spillway type of 'Uncontrolled' and a maximum discharge of 943 cubic feet per second, this structure plays a crucial role in managing water flow and protecting the surrounding area from potential flooding events.

Managed by the Department of Natural Resources in Ohio, this dam is inspected every 5 years to ensure its satisfactory condition and significant hazard potential is effectively mitigated. Despite its moderate risk level, the structure has been deemed to meet guidelines and is equipped with uncontrolled spillways and outlet gates. With a surface area of 4.7 acres and a drainage area of 0.19 square miles, Hunters Run Structure No. R-23 serves as a key component in the region's water resource management strategy, highlighting the importance of infrastructure in addressing climate-related challenges such as flooding and water scarcity.

Year Completed

1960

Dam Length

756

Dam Height

40.1

River Or Stream

TRIBUTARY TO HOCKING RIVER

Primary Dam Type

Earth

Surface Area

4.7

Drainage Area

0.19

Nid Storage

91.6

Outlet Gates

Uncontrolled

Hazard Potential

Significant

Foundations

Soil

Nid Height

40
       
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.