Galley Hill Lake Dam Reservoir Report

Last Updated: December 5, 2025

Galley Hill Lake Dam, located in Clermont County, Ohio, is a private earth dam built in 1960 primarily for recreation purposes.


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Summary

The dam stands at a height of 62.5 feet and has a storage capacity of 77.1 acre-feet, providing a serene surface area of 4 acres for recreational activities. However, recent inspections have raised concerns about the dam's condition, as it has been assessed as poor with a high hazard potential.

Despite being privately owned, Galley Hill Lake Dam falls under state jurisdiction and regulation, with the Department of Natural Resources being the primary regulatory agency. The dam has undergone modifications in 1983 by McGill & Smith, Inc., from Amelia, Ohio. Due to its proximity to a tributary of Stonelick Creek, the dam plays a crucial role in managing water resources in the area, with a drainage area of 0.06 square miles and a maximum discharge capacity of 33 cubic feet per second.

As an enthusiast interested in water resources and climate, the data on Galley Hill Lake Dam provides insight into the infrastructure contributing to water management and recreation in Ohio. The dam's current condition raises awareness about the importance of regular inspections and maintenance to ensure public safety and environmental sustainability. With a history dating back to 1960 and modifications in 1983, the dam serves as a significant structure in the region, highlighting the intersection of human development and natural resource management in a changing climate.

Year Completed

1960

Dam Length

266

Dam Height

62.5

River Or Stream

TRIBUTARY TO STONELICK CREEK

Primary Dam Type

Earth

Surface Area

4

Drainage Area

0.06

Nid Storage

77.1

Hazard Potential

High

Nid Height

63
       
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.