Westville Lake Dam Reservoir Report
Last Updated: December 5, 2025
Westville Lake Dam, located in Alliance, Ohio, is a significant earth dam completed in 1912 for recreational purposes.
°F
°F
mph
Wind
%
Humidity
Summary
Managed by the local government and regulated by the Department of Natural Resources, this dam stands at a height of 29 feet and spans 600 feet along the Naylor Ditch, providing a storage capacity of 1039 acre-feet. Despite its historical significance, the dam's condition assessment in 2016 revealed a poor rating, with a significant hazard potential.
With a drainage area of 8.52 square miles and a maximum discharge capacity of 3296 cubic feet per second, Westville Lake Dam plays a crucial role in water resource management and flood control. However, concerns about its structural integrity and maintenance have raised questions about its long-term sustainability. Climate enthusiasts and water resource experts are closely monitoring the dam's condition and advocating for necessary repairs and upgrades to ensure the safety of the surrounding community and the preservation of this valuable water resource in Columbiana County, Ohio.
As the debate continues over the future of Westville Lake Dam, stakeholders are urged to prioritize safety measures, conduct regular inspections, and implement risk management strategies to mitigate potential hazards. Collaborative efforts between local authorities, regulatory agencies, and the public are essential in safeguarding this vital infrastructure against the impacts of climate change and ensuring its continued contribution to recreational activities and water supply in the region.
Year Completed |
1912 |
Dam Length |
600 |
Dam Height |
29 |
River Or Stream |
NAYLOR DITCH |
Primary Dam Type |
Earth |
Surface Area |
77 |
Drainage Area |
8.52 |
Nid Storage |
1039 |
Hazard Potential |
Significant |
Nid Height |
29 |
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.
Westville Lake Dam