Dams in Hunterdon County, New Jersey
26Total Dams
10High Hazard
9Significant
Dam Safety in Hunterdon County, New Jersey
Hunterdon County has 26 dams tracked in the National Inventory of Dams. Of these, 10 are classified as high hazard — meaning failure would probably cause loss of human life. Another 9 carry a significant hazard classification. Currently, 10 dams have a condition assessment of poor or unsatisfactory.
The average dam in Hunterdon County is 76 years old. The most common purpose is recreation. The tallest dam is Round Valley South Dam at 178 ft.
Explore more: Oldest dams in New Jersey · Tallest dams · High risk dams · Largest reservoirs
| Dam | Hazard | Condition | Height (ft) | Purpose | Year |
|---|---|---|---|---|---|
| Round Valley South Dam | High | Poor | 178 | Water Supply | 1961 |
| Round Valley North Dam | High | Poor | 135 | Water Supply | 1961 |
| Spruce Run Reservoir Dam | High | Poor | 93 | Water Supply | 1964 |
| Round Valley Dike | High | Poor | 80 | Water Supply | 1961 |
| Lake Solitude Dam | High | Satisfactory | 42 | Recreation | |
| Warren Mill Dam | High | Poor | 38 | Water Supply | 1916 |
| New Jersey No Name #31 Dam | High | Satisfactory | 23 | Other | |
| Sullivan Pond Dam | High | Fair | 19 | Recreation | 1959 |
| Lambertville #2 Dam | High | Satisfactory | 17 | Water Supply | 1877 |
| Camp Beisler Dam | High | Poor | 17 | Recreation | 1971 |
| New Jersey No Name # 32 Dam | Significant | Satisfactory | 40 | Recreation | |
| Amwell No. 3 Dam | Significant | Satisfactory | 26 | Recreation | 1970 |
| Jutland Dam | Significant | Poor | 24 | Recreation | 1930 |
| Amwell No. 1 Dam | Significant | Satisfactory | 22 | Recreation | |
| Stony Brook W.s. Site 11 (amwell) Dam | Significant | Poor | 22 | Flood Risk Reduction | 1963 |
| Lake Cushetunk Dam | Significant | Fair | 20 | Recreation | 1928 |
| Amwell #2 Dam | Significant | Satisfactory | 19 | Recreation | |
| Clinton Mills Dam | Significant | Satisfactory | 14 | Recreation | 1951 |
| Clinton Mills Dike | Significant | Satisfactory | 8 | Flood Risk Reduction | |
| Round Valley P&f Dike | Low | 68 | Water Supply | ||
| Hunterdon Learning Center Dam | Low | 35 | Recreation | 1971 | |
| J. Seward Johnson Dam | Low | Poor | 24 | Irrigation | 1967 |
| Nishisakawick Creek Dam | Low | Fair | 23 | Recreation | 1930 |
| Williams Dam | Low | 22 | Fire Protection, Stock, Or Small Fish Pond | ||
| Canes Dam | Low | 10 | Recreation | ||
| Spruce Run Flow Measuring Weir Dam | Low | Poor | 9 | Other | 1960 |