Jisco Lake Dam Reservoir Report
Last Updated: December 6, 2025
Jisco Lake Dam, located in Jackson, Ohio, was completed in 1952 and is owned by the local government.
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Summary
This earth dam has a height of 55.6 feet and a length of 650 feet, creating a storage capacity of 1480 acre-feet primarily for recreational purposes. The dam is regulated by the Ohio Department of Natural Resources and undergoes regular inspections, with the last assessment conducted in October 2017 revealing a poor condition and high hazard potential.
Situated on Givens Run, the dam poses a significant risk in the event of a breach, requiring an Emergency Action Plan (EAP) that was last revised in 2006. Despite its age and deteriorating condition, Jisco Lake Dam remains a popular spot for water recreation enthusiasts, offering a surface area of 54.1 acres and a drainage area of 1.7 square miles. With a maximum discharge capacity of 6052 cubic feet per second, the dam plays a crucial role in managing water resources in the region.
Given the dam's poor condition and high hazard potential, stakeholders and authorities must prioritize maintenance and risk management measures to ensure the safety of the surrounding communities and the sustainability of the water resources. As climate change impacts water systems, proactive measures are essential to mitigate the risks associated with aging infrastructure like Jisco Lake Dam and to safeguard the environment and public safety for future generations.
Year Completed |
1952 |
Dam Length |
650 |
Dam Height |
55.6 |
River Or Stream |
GIVENS RUN |
Primary Dam Type |
Earth |
Surface Area |
54.1 |
Drainage Area |
1.7 |
Nid Storage |
1480 |
Hazard Potential |
High |
Nid Height |
56 |
Seasonal Comparison
Weather Forecast
Dam Data Reference
Condition Assessment
SatisfactoryNo 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
HighDams 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.
Jisco Lake Dam