Sidney Lime Sludge Lagoon Reservoir Report
Nearby: Fawn Lake Dam Clear Creek Lake Dam
Last Updated: December 19, 2025
Located in Sidney, Ohio, the Sidney Lime Sludge Lagoon is a significant earth dam structure completed in 1978 for the primary purpose of containing tailings.
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Summary
Owned by the local government, this lagoon is regulated by the Department of Natural Resources and undergoes regular inspections to ensure its safety and compliance with state regulations. With a height of 16 feet and a storage capacity of 146 acre-feet, this lagoon covers a surface area of 9.9 acres and serves as an integral component in managing the surrounding drainage area.
Despite being classified as having a significant hazard potential, the Sidney Lime Sludge Lagoon is currently in fair condition, as assessed in November 2019. With a yearly inspection frequency of 5 times, the dam is equipped with emergency action plans to mitigate risks and ensure the safety of nearby residents and the environment. The lagoon's proximity to an unnamed tributary to Tawawa Creek underscores its crucial role in water resource management and highlights the importance of ongoing monitoring and maintenance to safeguard against potential hazards and environmental impact.
Year Completed |
1978 |
Dam Length |
2290 |
Dam Height |
16 |
River Or Stream |
UNNAMED TRIBUTARY TO TAWAWA CREEK |
Primary Dam Type |
Earth |
Surface Area |
9.9 |
Drainage Area |
0.02 |
Nid Storage |
146 |
Hazard Potential |
Significant |
Nid Height |
16 |
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.
Sidney Lime Sludge Lagoon