Cedarville Upground Reservoir Reservoir Report
Last Updated: December 19, 2025
Located in Cedarville, Ohio, the Cedarville Upground Reservoir, also known as Cedarville Reservoir, serves as a vital water supply for the local community.
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Summary
Built in 1963 by the USDA NRCS, this earth dam structure stands at 15 feet in height and spans 1570 feet in length, with a storage capacity of 72 acre-feet. The reservoir draws water from Massies Creek, providing a surface area of 5 acres and serving as a critical resource for the region.
Despite its importance, the Cedarville Upground Reservoir faces challenges in terms of its condition assessment, with a poor rating and a high hazard potential. The last inspection in March 2019 highlighted the need for improvements and emergency preparedness. While the dam's risk assessment is moderate, efforts to enhance risk management measures and ensure compliance with regulatory agencies like the Department of Natural Resources are ongoing. For water resource and climate enthusiasts, the Cedarville Upground Reservoir stands as a reminder of the importance of maintaining and safeguarding our water infrastructure in the face of changing environmental conditions.
Year Completed |
1963 |
Dam Length |
1570 |
Dam Height |
15 |
River Or Stream |
MASSIES CREEK - OFFSTREAM |
Primary Dam Type |
Earth |
Surface Area |
5 |
Drainage Area |
0.01 |
Nid Storage |
72 |
Outlet Gates |
Uncontrolled |
Hazard Potential |
High |
Foundations |
Soil |
Nid Height |
15 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
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.
Cedarville Upground Reservoir