New Jersey Dams
830 dams tracked by the National Inventory of Dams
Total Dams
830
High Hazard
232
28%
Poor / Unsatisfactory
233
Average Age
95 yrs
Hazard Classification
High232 (28.0%)
Significant332 (40.0%)
Low266 (32.0%)
Condition Assessment
Satisfactory373 (44.9%)
Fair112 (13.5%)
Poor / Unsatisfactory233 (28.1%)
Not Rated112 (13.5%)
Federal
21
State
126
Local
287
Private
393
Tallest Dams
- Merrill Creek Main Dam280 ft
- Round Valley South Dam178 ft
- Monksville Dam150 ft
- Round Valley North Dam135 ft
- Boonton Dam120 ft
High Hazard Dams
Poor Condition Dams
All Dams in New Jersey
Showing 201–225 of 266
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Pine Mill Lake Dam Burlington County | 18 | — | Low | Poor |
| Pompton Dam Passaic County | 22 | — | Low | Fair |
| Porches Mill Dam Gloucester County | 20 | 1923 | Low | Unsatisfactory |
| Poricy Dam Monmouth County | 8 | — | Low | Not Rated |
| Quick Pond Dam Sussex County | 15 | — | Low | Not Rated |
| Rambaut Dam Bergen County | 11 | 1908 | Low | Poor |
| Riverton Basin Dam Middlesex County | 11 | — | Low | Not Rated |
| Round Valley P&F Dike Hunterdon County | 68 | — | Low | Not Rated |
| Sawmill Pond Dam Sussex County | 15 | — | Low | Poor |
| Scenic Lake Dam Sussex County | 35 | — | Low | Poor |
| Shay Lake Dam Sussex County | 24 | — | Low | Satisfactory |
| Shepherd Lake Dam Passaic County | 18 | — | Low | Satisfactory |
| Sheppards Mill Pond Dam Cumberland County | 18 | 1885 | Low | Satisfactory |
| Silver Lake Dam Cumberland County | 12 | 1936 | Low | Poor |
| Silver Lake Dam Middlesex County | 31 | 1923 | Low | Satisfactory |
| Silver Lake Dam Sussex County | 11 | — | Low | Poor |
| Silver Lake Dam Morris County | 15 | — | Low | Not Rated |
| Skip Morgan Drive Dam Atlantic County | 12 | — | Low | Poor |
| Slabtown Lake Dam Salem County | 10 | 1926 | Low | Poor |
| Spruce Lake Dam Gloucester County | 9 | — | Low | Satisfactory |
| Spruce Run Flow Measuring Weir Dam Hunterdon County | 9 | 1960 | Low | Poor |
| Squibb Dam Mercer County | 26 | — | Low | Satisfactory |
| Stabilization/Leveling Pond Dam Monmouth County | 10 | 1975 | Low | Satisfactory |
| Stag Pond Dam Sussex County | 8 | — | Low | Satisfactory |
| Stickle Pond Dam Morris County | 17 | — | Low | Not Rated |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.