48Total Dams
8High Hazard
16Significant
Dam Safety in Ocean County, New Jersey
Ocean County has 48 dams tracked in the National Inventory of Dams. Of these, 8 are classified as high hazard — meaning failure would probably cause loss of human life. Another 16 carry a significant hazard classification. Currently, 7 dams have a condition assessment of poor or unsatisfactory.
The average dam in Ocean County is 96 years old. The most common purpose is recreation. The tallest dam is Bennetts Mills Dam at 23 ft.
Explore more: Oldest dams in New Jersey · Tallest dams · High risk dams · Largest reservoirs
| Dam | Hazard | Condition | Height (ft) | Purpose | Year |
|---|---|---|---|---|---|
| Btmua Reservoir Dam | High | Satisfactory | 20 | Water Supply | |
| Prospertown Dam | High | Poor | 19 | Flood Risk Reduction | 1966 |
| Barnegat Lake Dam | High | Fair | 18 | Recreation | 1937 |
| Lake Carasaljo Dam | High | Fair | 16 | Recreation | 1870 |
| Rainbow Dam | High | Satisfactory | 13 | Recreation | 1938 |
| Parker Avenue Dam | High | Fair | 10 | Recreation | 1955 |
| Pohatcong Lake Dam | High | Satisfactory | 9 | Recreation | 1931 |
| Deer Head Lake Dam | High | Fair | 9 | Recreation | |
| Bennetts Mills Dam | Significant | Satisfactory | 23 | Recreation | |
| Neptune Basin Dam | Significant | Poor | 18 | Flood Risk Reduction | |
| Lake Shenandoah Dam | Significant | Fair | 17 | Recreation | 1934 |
| Pine Lake Park Dam | Significant | Satisfactory | 16 | Recreation | 1931 |
| Jacksons Mills Dam | Significant | Satisfactory | 15 | Recreation | 1925 |
| Waddill Lake Dam | Significant | Poor | 13 | Recreation | 1963 |
| Manahawkin Lake Dam | Significant | Poor | 12 | Recreation | 1929 |
| Upper Keswick Dam | Significant | Satisfactory | 12 | Recreation | 1898 |
| Lake Riviera Dam | Significant | Satisfactory | 11 | Recreation | |
| Forest Drive Dam | Significant | Satisfactory | 10 | Recreation | |
| New Jersey No Name # 113 Dam | Significant | Satisfactory | 10 | Recreation | 1965 |
| Stafford Forge Dam | Significant | Fair | 9 | Recreation | 1944 |
| Butterfly Bogs Dam | Significant | Fair | 8 | Recreation | |
| Route 88 Dam | Significant | Fair | 7 | Recreation | |
| Cassville Dam | Significant | Satisfactory | 6 | Recreation | |
| Gifford's Mill Dam | Significant | Poor | 0 | Recreation | |
| Bunker Hill Dam | Low | Satisfactory | 16 | Recreation | 1938 |
| Holiday Lake Dam | Low | Fair | 16 | Recreation | 1965 |
| Kennedy Pond Dam | Low | Not assessed | 15 | Recreation | |
| Lahaway Plantation Dam | Low | Not assessed | 14 | Recreation | |
| Clubhouse Lake Dam | Low | Not assessed | 14 | Recreation | |
| Turn Mill Pond Dam | Low | Fair | 13 | Recreation | |
| Wrights Dam | Low | Not assessed | 12 | Recreation | |
| Bamber Lake Dam | Low | Fair | 12 | Recreation | |
| Oxycocus East Dike #1 | Low | Not assessed | 12 | Fish and Wildlife Pond | 1880 |
| Success Lake Dam | Low | Not assessed | 11 | Recreation | |
| Green Branch Dam | Low | Not assessed | 11 | Water Supply | |
| Double Trouble North Dam | Low | Fair | 10 | Flood Risk Reduction | |
| Bass Lake Dam | Low | Not assessed | 10 | Recreation | |
| Collier Mills Dam | Low | Poor | 9 | Recreation | 1942 |
| Wells Mill Reservoir Dam | Low | Satisfactory | 9 | Recreation | |
| Cedar Run Dam | Low | Not assessed | 9 | Fish and Wildlife Pond | 1880 |
| Gaunts Reservoir Dam | Low | Not assessed | 8 | Recreation | |
| Keswick Grove Lower Dam | Low | Satisfactory | 8 | Recreation | 1898 |
| Oakford Lake Dam | Low | Fair | 8 | Other | 1929 |
| New Jersey No Name # 23 Dam | Low | Not assessed | 8 | Irrigation | |
| New Jersey No Name # 101 Dam | Low | Poor | 8 | Recreation | |
| Brindle Lake Dam | Low | Not assessed | 8 | Recreation | |
| Lake Horicon Dam | Low | Not assessed | 7 | Recreation | 1942 |
| Pickerel Pond Dam | Low | Not assessed | 7 | Fire Protection, Stock, Or Small Fish Pond |