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 176–200 of 229
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| East Lake Dam Salem County | 11 | — | Significant | Poor |
| Durham Pond Dam Morris County | 11 | — | Low | Poor |
| Duhernal Dam Middlesex County | 13 | 1939 | Significant | Poor |
| Dixons Pond Dam Morris County | 10 | — | Low | Poor |
| Diversion Dam Sussex County | 8 | 1959 | High | Poor |
| Delaware Lake Dam Warren County | 21 | — | Low | Poor |
| Davis Mill Dam Cumberland County | 18 | 1938 | Significant | Poor |
| Cushman Lake Dam Atlantic County | 17 | — | Low | Poor |
| Cupsaw Lake Dam Passaic County | 35 | 1930 | High | Poor |
| Cumberland Pond Dam Cumberland County | 12 | 1929 | Significant | Poor |
| Crystal Lake Dam Bergen County | 10 | 1939 | Low | Poor |
| Cranes Lake Dam Gloucester County | 10 | 1972 | Significant | Poor |
| Cranberry Lake Dam Sussex County | 18 | — | High | Poor |
| Core Wall Dam Passaic County | 7 | — | High | Poor |
| Cooper River Parkway (Kaighn Ave) Dam Camden County | 15 | 1940 | Significant | Poor |
| Collier Mills Dam Ocean County | 9 | 1942 | Low | Poor |
| Colesville Reservoir Dam Sussex County | 15 | — | Significant | Poor |
| Cobbs Mill Dam Salem County | 10 | 1940 | Significant | Poor |
| Centerton Lake Dam Salem County | 12 | 1942 | Significant | Poor |
| Centennial Lake Dam Burlington County | 18 | — | High | Poor |
| Cedar Pond Dam Passaic County | 8 | 1920 | Low | Poor |
| Cedar Lake Dam Gloucester County | 9 | — | Low | Poor |
| Cedar Lake Dam Cumberland County | 12 | — | Significant | Poor |
| Canoe Brook Dam Essex County | 9 | 1880 | Low | Poor |
| Camp Karney Dam Salem County | 13 | 1953 | Low | Poor |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.