Elkem Sludge Holding Pond 5c Dam Reservoir Report
Last Updated: December 19, 2025
Elkem Sludge Holding Pond 5c Dam, located in Ashtabula, Ohio, was completed in 1988 and serves as a crucial structure for tailings management.
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Summary
This private dam, designed by BURGESS & NIPLE, LIMITED, stands at a height of 20 feet and has a length of 2475 feet, with a storage capacity of 190 acre-feet. The dam is state-regulated by the Department of Natural Resources and undergoes regular inspections, with the last assessment conducted in October 2017, revealing a fair condition.
Situated near a tributary to Lake Erie, the Elkem Sludge Holding Pond 5c Dam plays a pivotal role in water resource management, with a significant hazard potential noted. The dam covers a surface area of 9.3 acres and has a drainage area of 0.02 square miles, further emphasizing its importance in maintaining water quality and quantity in the region. Despite its fair condition, the dam's emergency action plan and risk assessment measures are yet to be fully developed, raising concerns for potential risks associated with the structure.
For water resource and climate enthusiasts, the Elkem Sludge Holding Pond 5c Dam stands as a notable earth dam that warrants attention and monitoring. With its strategic location and role in tailings management, the dam serves as a key component of the region's infrastructure. Continued regulatory oversight and the implementation of risk management measures are essential to ensure the safety and effectiveness of this vital water resource structure in Ashtabula, Ohio.
Year Completed |
1988 |
Dam Length |
2475 |
Dam Height |
20 |
River Or Stream |
TRIBUTARY TO LAKE ERIE - OFFSTREAM |
Primary Dam Type |
Earth |
Surface Area |
9.3 |
Drainage Area |
0.02 |
Nid Storage |
190 |
Hazard Potential |
Significant |
Nid Height |
20 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Conneaut Creek At Conneaut Oh
|
2170cfs |
Brandy Run Near Girard
|
16cfs |
Grand River Near Painesville Oh
|
1890cfs |
Walnut Creek Upstream Pool
|
57cfs |
Mosquito Creek Near Greene Center Oh
|
298cfs |
Shenango River At Pymatuning Dam
|
189cfs |
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.
Elkem Sludge Holding Pond 5c Dam