Dams in Marion County, West Virginia
14Total Dams
12High Hazard
1Significant
Dam Safety in Marion County, West Virginia
Marion County has 14 dams tracked in the National Inventory of Dams. Of these, 12 are classified as high hazard — meaning failure would probably cause loss of human life. Another 1 carry a significant hazard classification.
The average dam in Marion County is 56 years old. The most common purpose is flood risk reduction. The tallest dam is Lewellyn Amd Impoundment at 122 ft.
Explore more: Oldest dams in West Virginia · Tallest dams · High risk dams · Largest reservoirs
Data note: Hazard potential describes the consequences if a dam failed; it does not predict the likelihood of failure. Inspection, condition, and emergency-plan fields can be incomplete or delayed. Check state dam-safety officials and local emergency managers for official guidance.
| Dam | Hazard | Condition | Height (ft) | Purpose | Year |
|---|---|---|---|---|---|
| Lewellyn Amd Impoundment | High | Not Available | 122 | Other | |
| Upper Buffalo No.16 | High | Satisfactory | 68 | Flood Risk Reduction | 1981 |
| Upper Buffalo No.22 Dam | High | Satisfactory | 62 | Flood Risk Reduction | 1975 |
| Upper Buffalo No.2 | High | Satisfactory | 58 | Flood Risk Reduction | 1970 |
| Upper Buffalo No.39 | High | Satisfactory | 57 | Flood Risk Reduction | 1969 |
| Mannington Water Supply Dam | High | Satisfactory | 56 | Recreation | 1964 |
| Margaret Freshwater Impoundment | High | Not Available | 55 | Water Supply | |
| Upper Buffalo Creek 37a | High | Satisfactory | 54 | Flood Risk Reduction | 1990 |
| Upper Buffalo No.4 | High | Satisfactory | 53 | Flood Risk Reduction | 1984 |
| Upper Buffalo #33a Dam | High | Satisfactory | 51 | Flood Risk Reduction | 1992 |
| Rachel Hunting & Fishing Dam | High | Satisfactory | 32 | Recreation | 1955 |
| Laurel Run Lake | High | Not Rated | 15 | Recreation | 1957 |
| Rock Lake Dam | Significant | Satisfactory | 17 | Recreation | 1929 |
| Falls Run Dam | Undetermined | Not Rated | 31 | Other |