Simco Sediment Pond E-55 Dam Reservoir Report
Last Updated: December 5, 2025
The Simco Sediment Pond E-55 Dam, located in Plainfield, Ohio, is a privately owned structure designed by the Peabody Coal Company for grade stabilization purposes.
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Summary
Completed in 1989, this earth dam stands at a height of 34 feet and spans 495 feet in length, with a storage capacity of 143 acre-feet. Situated on an unnamed tributary of Willis Creek, the dam plays a crucial role in managing water resources in the area, with a normal storage capacity of 44.2 acre-feet and a drainage area of 0.78 square miles.
Despite its low hazard potential and satisfactory condition assessment, the Simco Sediment Pond E-55 Dam is subject to state regulation, inspection, and enforcement by the Department of Natural Resources in Ohio. The dam's last inspection took place in December 2017, with an inspection frequency of every five years. While there are no associated structures or spillway types reported for this dam, its role in grade stabilization and water resource management is vital for the local ecosystem and community.
With its strategic location and design, the Simco Sediment Pond E-55 Dam serves as a critical infrastructure for maintaining water quality and quantity in Coshocton County, Ohio. As climate change continues to impact water resources, the importance of structures like this dam in managing sediment and maintaining stream stability cannot be overstated. Water resource and climate enthusiasts will find this dam to be an intriguing case study in the intersection of infrastructure, environmental stewardship, and regulatory oversight in the face of evolving challenges.
Year Completed |
1989 |
Dam Length |
495 |
Dam Height |
34 |
River Or Stream |
UNNAMED TRIBUTARY OF WILLIS CREEK |
Primary Dam Type |
Earth |
Surface Area |
5.6 |
Drainage Area |
0.78 |
Nid Storage |
143 |
Hazard Potential |
Low |
Nid Height |
34 |
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.
Simco Sediment Pond E-55 Dam
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