Harper Pond Dam Reservoir Report

Last Updated: December 5, 2025

Harper Pond Dam, located in Morrow, Ohio, was completed in 1956 and is owned privately.


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Summary

Designed by the USDA NRCS, this recreational dam stands at 30 feet in height and has a length of 260 feet, with a storage capacity of 26 acre-feet. Situated on the TRIB SECOND CREEK, the dam is primarily used for recreational purposes and is classified as an Earth dam with a stone core and soil foundation.

With a low hazard potential and a moderate risk assessment rating, Harper Pond Dam currently has not been inspected or rated for its condition. Despite being unregulated by the state and lacking regular inspections, the dam is equipped with an uncontrolled spillway with a width of 15 feet. The dam also features outlet gates for water release. While there are no associated structures or locks, the dam's emergency action plan status and risk management measures are currently unknown.

Water resource and climate enthusiasts interested in Harper Pond Dam can appreciate its historical significance and recreational purpose in the Warren County area. As a privately owned structure with limited state oversight, the dam presents an opportunity for further exploration and assessment to ensure its safety and functionality in the face of potential risks and emergencies.

Year Completed

1956

Dam Length

260

Dam Height

30

River Or Stream

TRIB SECOND CREEK

Primary Dam Type

Earth

Surface Area

2

Hydraulic Height

30

Nid Storage

26

Outlet Gates

Uncontrolled

Hazard Potential

Low

Foundations

Soil

Nid Height

30
       
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.