Harmon Creek No. 3 Dam
Harmon Creek No. 3 Dam is an earth dam located in Brooke County, West Virginia, built in 1970. It carries a High hazard potential classification and has a satisfactory condition assessment.
About Harmon Creek No. 3 Dam
The primary purpose of Harmon Creek No. 3 Dam is flood risk reduction. The dam is designed to control downstream flooding by temporarily storing excess water during storms and releasing it at a controlled rate. The dam is owned by City Of Weirton (local government). It impounds the Mechling Run near Colliers.
The dam stands 77 feet tall and stretches 290 feet across, creates a reservoir covering 2 acres, has a maximum storage capacity of 201 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1970, the structure is well into its service life at over 50 years old.
This dam carries a high hazard potential classification, which means that a failure or uncontrolled release of water would likely cause loss of human life. This classification reflects the consequences of failure, not the likelihood — it indicates that people live or work in the area downstream. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. An emergency action plan is in place for this dam. The most recent inspection on record was 11/30/2024.
At 77 feet, this dam is taller than 97% of all dams in the United States.
Living Downstream
If you live or work downstream of this dam, consider taking these steps: learn your local evacuation routes, check whether your county emergency management office has a dam failure inundation map, and sign up for local emergency alerts. The West Virginia dam safety program can provide more specific information about emergency planning for this structure.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | West Virginia |
| County | Brooke |
| Nearest City | Colliers |
| River/Stream | Mechling Run |
| Coordinates | 40.35778, -80.54167 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 77 ft |
| Dam Height | 77 ft |
| Dam Length | 290 ft |
| Year Completed | 1970 (56 years old) |
Storage & Hydraulics
| NID Storage | 201 acre-ft |
| Max Storage | 201 acre-ft |
| Normal Storage | 17 acre-ft |
| Surface Area | 2 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 4,700 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | CITY OF WEIRTON |
| Owner Type | Local Government |
| Hazard Classification | High |
| Condition Assessment | Satisfactory |
| Last Inspection | 11/30/2024 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | WV00902 |
| Federal ID | WV00902 |
| More Info | State Dam Safety Program |