Attica Upground Reservoir #2 Reservoir Report
Last Updated: December 25, 2025
Attica Upground Reservoir #2 in Seneca, Ohio, is a critical water supply resource managed by the local government.
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Summary
Completed in 2006, this Earth dam stands at a height of 23 feet and has a storage capacity of 162 acre-feet, with a normal storage level of 120 acre-feet. The reservoir covers 8.1 acres and is situated along Honey Creek, serving as an offstream source for water supply purposes.
Managed by the Department of Natural Resources, this reservoir is subject to state regulations, inspections, and enforcement measures to ensure its safety and functionality. Despite its fair condition assessment in 2018, the dam has a high hazard potential, emphasizing the importance of regular maintenance and monitoring. The Emergency Action Plan for the reservoir was last revised in June 2020, highlighting the authorities' commitment to emergency preparedness and risk management.
Attica Upground Reservoir #2 plays a crucial role in providing water to the community and is a key component of Ohio's water infrastructure. With its strategic location and significant storage capacity, this reservoir serves as a vital resource for ensuring water security in the region. Climate and water resource enthusiasts will appreciate the detailed data available on this essential infrastructure, highlighting the importance of sustainable water management practices in the face of changing environmental conditions.
Year Completed |
2006 |
Dam Length |
2450 |
Dam Height |
23 |
River Or Stream |
HONEY CREEK - OFFSTREAM |
Primary Dam Type |
Earth |
Surface Area |
8.1 |
Drainage Area |
0.01 |
Nid Storage |
162 |
Hazard Potential |
High |
Nid Height |
23 |
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.
Attica Upground Reservoir #2