Harmon Creek #1 Reservoir Report
Last Updated: February 23, 2026
Harmon Creek #1, also known as Sappington Run, is a local government-owned earth dam located in Weirton, West Virginia.
Summary
Built in 1974 by the USDA NRCS, this dam serves the primary purpose of flood risk reduction in the area. Standing at a height of 84 feet and a length of 485 feet, it has a storage capacity of 664 acre-feet and covers a surface area of 5 acres.
The dam is state-regulated and inspected, with the West Virginia Department of Water and Waste Management overseeing its permitting, inspection, and enforcement. Despite being classified as having a high hazard potential, its condition assessment is rated as satisfactory as of November 2015. With a risk assessment indicating moderate risk, the dam has a designated emergency action plan prepared in case of any unforeseen events.
Overall, Harmon Creek #1 plays a crucial role in mitigating flood risks in the region and is monitored regularly to ensure its safety and functionality. As a noteworthy structure in the area, it stands as a testament to effective water resource management and climate adaptation measures in West Virginia.
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°F
mph
Wind
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Humidity
15-Day Weather Outlook
Year Completed |
1974 |
Dam Length |
485 |
Dam Height |
84 |
River Or Stream |
SAPPINGTON RUN |
Primary Dam Type |
Earth |
Surface Area |
5 |
Drainage Area |
1.85 |
Nid Storage |
664 |
Outlet Gates |
Uncontrolled |
Hazard Potential |
High |
Foundations |
Rock, Soil |
Nid Height |
84 |
Seasonal Comparison
5-Day Hourly Forecast Detail
Nearby Streamflow Levels
Kings Creek At Weirton
|
1cfs |
Yellow Creek Near Hammondsville Oh
|
384cfs |
Short Creek Near Dillonvale Oh
|
133cfs |
Little Beaver Creek Near East Liverpool Oh
|
1190cfs |
Raccoon Creek At Moffatts Mill
|
384cfs |
Ohio River At Sewickley
|
102000cfs |
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.
Harmon Creek #1