Monroeville Upground Reservoir Reservoir Report

Last Updated: December 5, 2025

Monroeville Upground Reservoir in Huron, Ohio, is a significant water supply structure designed by GPD Associates and completed in 2000.


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Summary

This earth dam stands at 16.5 feet high, with a storage capacity of 260.6 million gallons and a surface area of 16 acres. The reservoir serves the city of Monroeville and surrounding areas for water supply purposes, with a normal storage capacity of 198.9 million gallons.

Managed by the Department of Natural Resources, the Monroeville Upground Reservoir is state-regulated and undergoes regular inspections to ensure its fair condition and significant hazard potential are maintained. The dam overlooks an unnamed tributary to West Branch Huron, with a drainage area of 0.03 square miles. Despite its modest size, the reservoir plays a crucial role in the region's water resource management, providing essential services to the community.

With its strategic location and efficient design, the Monroeville Upground Reservoir represents a vital piece of Ohio's water infrastructure. Its construction and maintenance adhere to state regulations, ensuring its operational integrity and safety for the surrounding population. Climate and water resource enthusiasts can appreciate the reservoir's contribution to sustainable water supply management in the region, embodying the intersection of environmental stewardship and engineering excellence.

Year Completed

2000

Dam Length

3400

Dam Height

16.5

River Or Stream

UNNAMED TRIBUTARY TO WEST BRANCH HURON

Primary Dam Type

Earth

Surface Area

16

Drainage Area

0.03

Nid Storage

260.6

Hazard Potential

Significant

Nid Height

17
       
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.