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 701–725 of 830
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Stewart Dam Sussex County | 14 | 1965 | Significant | Poor |
| Stickle Pond Dam Morris County | 17 | — | Low | Not Rated |
| Stiers Pond Dam Warren County | 34 | — | Significant | Poor |
| St. Mary'S Abbey Lower Dam Morris County | 13 | — | Significant | Poor |
| Stockton College Upper Dam #1 Atlantic County | 8 | — | Low | Not Rated |
| Stokes-Lower Dam Burlington County | 8 | — | Significant | Poor |
| Stony Brook #14 (Honey Lake) Dam Mercer County | 18 | 1964 | High | Satisfactory |
| Stony Brook #2 (Willow Lake) Dam Mercer County | 15 | 1959 | Low | Satisfactory |
| Stony Brook #3 (Rosedale Lake) Dam Mercer County | 28 | — | Low | Satisfactory |
| Stony Brook #4 (Curlis Lake) Dam Mercer County | 24 | 1959 | Low | Satisfactory |
| Stony Brook Water Shed #7 (Hunt Lake) Dam Mercer County | 28 | 1959 | High | Poor |
| Stony Brook W.S. # 5 (Baldwin) Dam Mercer County | 14 | — | Low | Fair |
| Stony Brook W.S. Site 11 (Amwell) Dam Hunterdon County | 22 | 1963 | Significant | Poor |
| Stony Lake Dam Sussex County | 17 | 1926 | Low | Fair |
| Stump Pond Dam Sussex County | 25 | — | High | Poor |
| Success Lake Dam Ocean County | 11 | — | Low | Not Rated |
| Sullivan Pond Dam Hunterdon County | 19 | 1959 | High | Fair |
| Summit Lake Dam Sussex County | 5 | — | Significant | Satisfactory |
| Sunrise Lake Dam Morris County | 18 | 1930 | Significant | Satisfactory |
| Sunset Lake Dam Cumberland County | 20 | 1927 | High | Fair |
| Sunset Lake Dam Morris County | 8 | 1914 | High | Poor |
| Sunset Lake Dam Gloucester County | 8 | 1950 | Significant | Satisfactory |
| Sunset Lake Dam Sussex County | 13 | 1925 | Low | Satisfactory |
| Sunset Lake Raceway Dam Cumberland County | 11 | 1949 | Low | Satisfactory |
| Sunshine Lake Dam Camden County | 10 | — | Significant | Satisfactory |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.