Fremont Upground Reservoir Reservoir Report

Last Updated: December 5, 2025

Fremont Upground Reservoir, located in Sandusky, Ohio, is a vital water supply infrastructure managed by the local government.


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Summary

Designed by ARCADIS, this Earth dam stands at a height of 34 feet and was completed in 2012, providing a storage capacity of 2700 acre-feet and covering a surface area of 93 acres. The reservoir is situated along the Sandusky River, ensuring a reliable water source for the surrounding community of Ballville.

With a high hazard potential but in satisfactory condition as of the last assessment in May 2018, Fremont Upground Reservoir plays a crucial role in water resource management in the region. The dam undergoes regular inspections every five years to ensure its structural integrity and safety. It is regulated by the Ohio Department of Natural Resources, with enforcement and permitting mechanisms in place to maintain compliance with state regulations.

Water resource and climate enthusiasts will be intrigued by the engineering feat and environmental impact of Fremont Upground Reservoir. Its strategic location, storage capacity, and purpose for water supply highlight its importance in sustaining the local ecosystem and community. As a significant piece of infrastructure in the Detroit District, this reservoir serves as a key asset in managing water resources and mitigating the impacts of climate change in the region.

Year Completed

2012

Dam Length

8888

Dam Height

34

River Or Stream

SANDUSKY RIVER

Primary Dam Type

Earth

Surface Area

93

Drainage Area

0.15

Nid Storage

2700

Hazard Potential

High

Nid Height

34
       
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.