Upper Lake Milton Dam Reservoir Report

Last Updated: December 6, 2025

Located in Jackson, Ohio, the Upper Lake Milton Dam stands as a crucial structure for water resource and climate enthusiasts.


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Summary

This earth dam, primarily designed for recreation purposes, holds back the waters of Flint Run, providing a surface area of 5.4 acres and a storage capacity of 162.2 acre-feet. With a height of 28.9 feet and a length of 1050 feet, the dam plays a significant role in the local ecosystem, offering a habitat for various aquatic species while also serving as a recreational spot for the community.

Managed by the Ohio Department of Natural Resources, the Upper Lake Milton Dam is subject to regular inspections and enforcement measures to ensure its safety and functionality. Despite being classified as having a low hazard potential, the dam's condition assessment in 2016 was rated as poor, highlighting the need for potential maintenance and improvements to address any structural concerns. With state jurisdiction and regulatory oversight, the dam remains a key component in managing water resources in the area.

With its proximity to Buckeye, Ohio, the Upper Lake Milton Dam not only provides recreational opportunities but also serves as a vital piece of infrastructure for water management and conservation efforts. As enthusiasts in the field of water resources and climate continue to monitor and assess the condition of this earth dam, the importance of maintaining its integrity and functionality becomes increasingly apparent in ensuring the sustainability of the local ecosystem and community.

Dam Length

1050

Dam Height

28.9

River Or Stream

FLINT RUN

Primary Dam Type

Earth

Surface Area

5.4

Drainage Area

0.17

Nid Storage

162.2

Hazard Potential

Low

Nid Height

29
       
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.