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 476–500 of 830
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Kopycinski Pond Dam Warren County | 20 | — | Low | Not Rated |
| Kohout Lake Dam Sussex County | 12 | 1939 | Low | Not Rated |
| Kofferls Pond Dam Sussex County | 20 | — | Low | Not Rated |
| K-L-P Dam Salem County | 20 | 1963 | Significant | Fair |
| Kittatinny Lake Dam Sussex County | 10 | 1923 | Low | Satisfactory |
| Kitchell Lake Dam Passaic County | 14 | 1952 | Significant | Satisfactory |
| Kirkwood Lake Dam Camden County | 13 | 1931 | Low | Poor |
| Kinnelon (Maple) Dam Morris County | 14 | 1928 | Significant | Poor |
| Killdeer Lake Dam Burlington County | 15 | — | Significant | Poor |
| Kettle Run Dam Burlington County | 14 | 1885 | Low | Fair |
| Keswick Grove Lower Dam Ocean County | 8 | 1898 | Low | Satisfactory |
| Kennedy Pond Dam Ocean County | 15 | — | Low | Not Rated |
| Kenilworth Lake Dam Burlington County | 17 | — | Significant | Satisfactory |
| Kenilworth Blvd. Dam Union County | 2 | — | Significant | Poor |
| Kenilworth #2 (Flamingo Road) Dam Burlington County | 8 | — | Low | Poor |
| Kemah Lake Dam Sussex County | 17 | 1928 | High | Satisfactory |
| Kelly Dam Salem County | 20 | 1957 | Low | Not Rated |
| Kandle Lake Dam Gloucester County | 9 | — | Significant | Satisfactory |
| Kampfe Lake Dam Passaic County | 13 | 1897 | High | Satisfactory |
| Kakeout Dike Morris County | 13 | — | High | Satisfactory |
| Kakeout Dam Morris County | 30 | 1938 | High | Satisfactory |
| Jutland Dam Hunterdon County | 24 | 1930 | Significant | Poor |
| Jumping Brook Dam Monmouth County | 10 | 1907 | Low | Satisfactory |
| J. Seward Johnson Dam Hunterdon County | 24 | 1967 | Low | Poor |
| Johnson Pond Dam Cape May County | 10 | 1759 | Significant | Poor |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.