Willoway Upground No. 5 Dam Reservoir Report
Last Updated: February 3, 2026
The Willoway Upground No.
°F
°F
mph
Wind
%
Humidity
15-Day Weather Outlook
Summary
5 Dam, located in Avon, Ohio, was completed in 1999 and serves as a vital water supply structure in the region. Owned by a private entity, this earth-type dam stands at a height of 12 feet and has a length of 2440 feet, with a storage capacity of 71 acre-feet. The dam is situated on the Slater Ditch, with a drainage area of 0.01 square miles, providing essential water resources for the community.
Managed by the Department of Natural Resources in Ohio, the Willoway Upground No. 5 Dam is subject to regular state inspections, with the last assessment conducted in September 2018, revealing satisfactory conditions. Despite its high hazard potential, the dam is well-maintained and meets regulatory guidelines for water resource management. The dam's Emergency Action Plan (EAP) was last revised in June 2020, ensuring readiness for any unforeseen events or emergencies.
Enthusiasts of water resources and climate will find the Willoway Upground No. 5 Dam a significant part of the infrastructure in Lorain County, Ohio. With its crucial role in water supply and its adherence to state regulations, this dam stands as a testament to responsible management of resources in the face of changing environmental conditions.
Year Completed |
1999 |
Dam Length |
2440 |
Dam Height |
12 |
River Or Stream |
SLATER DITCH |
Primary Dam Type |
Earth |
Surface Area |
8.2 |
Drainage Area |
0.01 |
Nid Storage |
71 |
Hazard Potential |
High |
Nid Height |
12 |
Seasonal Comparison
Hourly 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.
Willoway Upground No. 5 Dam