R-Farm Lake Dam Reservoir Report

Last Updated: December 5, 2025

R-Farm Lake Dam in River Corners, Ohio, is a privately owned structure with a primary purpose of recreation.


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Summary

Completed in 1939, this earth dam stands at a height of 30 feet and has a length of 180 feet, creating a storage capacity of 84 acre-feet. Situated on a tributary to the East Branch Black River, the dam serves as a recreational spot with a surface area of 5 acres and a drainage area of 0.68 square miles.

Despite its low hazard potential, R-Farm Lake Dam is currently in poor condition as of the last assessment in October 2018. With a biennial inspection frequency, the dam is monitored for safety by the Ohio Department of Natural Resources, which regulates, inspects, and enforces compliance with state standards. Although there are no associated structures or outlet gates, the dam's maintenance and upkeep are crucial to ensure the safety of the surrounding community and the integrity of the water resource for recreational use.

As water resource and climate enthusiasts, it is important to recognize the significance of R-Farm Lake Dam in providing a recreational space while also understanding the need for regular maintenance and inspection to ensure its continued safety. With a history dating back to the late 1930s, this earth dam plays a vital role in storing water for recreational activities and serves as a reminder of the importance of proper infrastructure management in safeguarding our natural resources against potential hazards.

Year Completed

1939

Dam Length

180

Dam Height

30

River Or Stream

TRIBUTARY TO EAST BRANCH BLACK RIVER

Primary Dam Type

Earth

Surface Area

5

Drainage Area

0.68

Nid Storage

84

Hazard Potential

Low

Nid Height

30
       
Seasonal Comparison

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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.