Dams in New Jersey
829
Total Dams
232
High Hazard
27.99%
% High Hazard
95.3 yrs
Average Age
Counties
| County | Dams | High Hazard | % High | Avg Age |
|---|---|---|---|---|
| Passaic | 83 | 49 | 59.04% | 103.9 yrs |
| Morris | 110 | 42 | 38.18% | 102.3 yrs |
| Sussex | 139 | 40 | 28.78% | 86.9 yrs |
| Warren | 32 | 15 | 46.88% | 76.7 yrs |
| Monmouth | 44 | 12 | 27.27% | 85.5 yrs |
| Burlington | 74 | 10 | 13.51% | 95.1 yrs |
| Hunterdon | 26 | 10 | 38.46% | 76.6 yrs |
| Essex | 13 | 8 | 61.54% | 96.8 yrs |
| Ocean | 48 | 8 | 16.67% | 96.0 yrs |
| Mercer | 25 | 8 | 32.00% | 88.9 yrs |
| Bergen | 27 | 7 | 25.93% | 87.9 yrs |
| Somerset | 17 | 5 | 29.41% | 79.2 yrs |
| Cumberland | 23 | 4 | 17.39% | 98.8 yrs |
| Middlesex | 22 | 4 | 18.18% | 100.5 yrs |
| Union | 14 | 3 | 21.43% | 92.2 yrs |
| Gloucester | 37 | 3 | 8.11% | 93.7 yrs |
| Salem | 35 | 1 | 2.86% | 95.0 yrs |
| Atlantic | 25 | 1 | 4.00% | 111.6 yrs |
| Camden | 26 | 1 | 3.85% | 98.3 yrs |
| Cape May | 8 | 0 | 0.00% | 278.3 yrs |
Purpose Breakdown
Tallest Dams in New Jersey
| Dam Name | Height | County | Hazard |
|---|---|---|---|
| Merrill Creek Main Dam | 280 ft | Warren | High Hazard |
| Round Valley South Dam | 178 ft | Hunterdon | High Hazard |
| Monksville Dam | 150 ft | Passaic | High Hazard |
| Round Valley North Dam | 135 ft | Hunterdon | High Hazard |
| Boonton Dam | 120 ft | Morris | High Hazard |
| Raymond Dam | 103 ft | Passaic | High Hazard |
| Charlotteburg Dam | 102 ft | Morris | High Hazard |
| Spruce Run Reservoir Dam | 93 ft | Hunterdon | High Hazard |
| Clyde Potts Reservoir Dam | 80 ft | Morris | High Hazard |
| Round Valley Dike | 80 ft | Hunterdon | High Hazard |