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 501–525 of 830
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Mohegan Trail Dam Bergen County | 10 | — | Low | Poor |
| Monksville Dam Passaic County | 150 | 1986 | High | Satisfactory |
| Moorestown Dam Burlington County | 8 | 1939 | Low | Fair |
| Moose Pac Lake Dam Morris County | 10 | 1918 | Significant | Poor |
| Morris County Ymca Dam Morris County | 18 | 1928 | Significant | Satisfactory |
| Morris Lake Dam Sussex County | 19 | 1895 | High | Satisfactory |
| Morse Lake Dam Passaic County | 14 | — | Low | Satisfactory |
| Moss Mill Lake Dam Atlantic County | 7 | 1939 | Low | Not Rated |
| Mountain Creek Lake Dam Sussex County | 12 | 1984 | High | Poor |
| Mountain Lake Dam Morris County | 15 | — | High | Satisfactory |
| Mountain Valley Park Dam Morris County | 10 | 1950 | Significant | Satisfactory |
| Mount Hope Lake Dam Morris County | 18 | 1944 | High | Satisfactory |
| Mount Laurel Lake Dam Passaic County | 15 | 1930 | Low | Not Rated |
| Mount Paul Dam Morris County | 26 | 1918 | High | Satisfactory |
| Mt. Hope Pond Dam Morris County | 15 | 1930 | Significant | Poor |
| Mt. Kemble Lake Dam Morris County | 36 | 1928 | Significant | Satisfactory |
| Mt. Misery Dam Burlington County | 10 | 1950 | Low | Not Rated |
| Mullica Hill Pond Dam Gloucester County | 19 | 1922 | Significant | Satisfactory |
| Munson Dam Salem County | 32 | 1934 | Low | Fair |
| Narraticon Lake Dam Gloucester County | 20 | 1934 | Significant | Satisfactory |
| Navesink River Road Dam Monmouth County | — | — | Significant | Poor |
| Neptune Basin Dam Ocean County | 18 | — | Significant | Poor |
| New Brooklyn Dam Camden County | 9 | 1936 | Significant | Poor |
| New Camp Site Dam Camden County | 15 | 1946 | Low | Fair |
| New Jersey No Name # 101 Dam Ocean County | 8 | — | Low | Poor |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.