Dams in Onslow County, North Carolina
5Total Dams
3High Hazard
0Significant
Dam Safety in Onslow County, North Carolina
Onslow County has 5 dams tracked in the National Inventory of Dams. Of these, 3 are classified as high hazard — meaning failure would probably cause loss of human life.
The average dam in Onslow County is 23 years old. The most common purpose is other. The tallest dam is North Topsail Water & Sewer Lagoon Dam at 18 ft.
Explore more: Oldest dams in North Carolina · Tallest dams · High risk dams · Largest reservoirs
| Dam | Hazard | Condition | Height (ft) | Purpose | Year |
|---|---|---|---|---|---|
| North Topsail Water & Sewer Lagoon Dam | High | Fair | 18 | Other | |
| Jacksonville East-west Storage Lagoon Dam | High | Satisfactory | 15 | Other | 1997 |
| Jacksonville South Storage Lagoon Dam | High | Satisfactory | 0 | Flood Risk Reduction | 2009 |
| Yow-williams Lake Dam | Low | Satisfactory | 12 | Recreation | |
| Oceanview Farms Dam | Low | Satisfactory | 12 | Other |