East Branch Black River Dam No. 2 Reservoir Report
Last Updated: February 3, 2026
East Branch Black River Dam No.
°F
°F
mph
Wind
%
Humidity
15-Day Weather Outlook
Summary
2, located in Lorain, Ohio, is a concrete dam primarily used for recreation purposes, with a height of 15 feet and a length of 120 feet. The dam holds a storage capacity of 88.2 acre-feet and is situated on the East Branch Black River, within the jurisdiction of the Ohio Department of Natural Resources. Despite its recreational purpose, the dam is classified as having significant hazard potential and is currently assessed to be in poor condition as of the last inspection in September 2018.
The dam, owned by a non-listed entity, is regulated by the state and subject to periodic inspections, enforcement, and permitting by the Department of Natural Resources. While the dam has not undergone any modifications in recent years, its condition assessment raises concerns about its ability to withstand potential risks and emergencies. With a drainage area of 222 square miles and a maximum discharge of 1052 cubic feet per second, the East Branch Black River Dam No. 2 plays a crucial role in managing water resources in the region, highlighting the importance of ongoing monitoring and maintenance to ensure its safety and functionality for both recreational and environmental purposes.
Dam Length |
120 |
Dam Height |
15 |
River Or Stream |
EAST BRANCH BLACK RIVER |
Primary Dam Type |
Concrete |
Surface Area |
22 |
Drainage Area |
222 |
Nid Storage |
88.2 |
Hazard Potential |
Significant |
Nid Height |
15 |
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.
East Branch Black River Dam No. 2