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 373
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Lake Lenape Dam Sussex County | 27 | 1931 | High | Satisfactory |
| Lake Kathryn Dam Sussex County | 12 | 1926 | Low | Satisfactory |
| Lake Gilman Dam Gloucester County | 14 | 1928 | High | Satisfactory |
| Lake Gerard Dike C Sussex County | 12 | — | High | Satisfactory |
| Lake Gerard Dike B Sussex County | 15 | — | High | Satisfactory |
| Lake Gerard Dam A Sussex County | 16 | 1930 | High | Satisfactory |
| Lake Gerard Dam Sussex County | 10 | 1930 | High | Satisfactory |
| Lake Erskine Dam Passaic County | 10 | 1930 | Significant | Satisfactory |
| Lake Ashroe Dam Sussex County | 19 | 1972 | Significant | Satisfactory |
| Lake Arrowhead Dam Morris County | 8 | 1925 | Significant | Satisfactory |
| Lake Anne Dam Sussex County | 10 | 1950 | Low | Satisfactory |
| Laidlaws Pond Dam Sussex County | 20 | 1998 | Low | Satisfactory |
| Kuehnle Pond Dam Atlantic County | 14 | 1935 | Significant | Satisfactory |
| Kittatinny Lake Dam Sussex County | 10 | 1923 | Low | Satisfactory |
| Kitchell Lake Dam Passaic County | 14 | 1952 | Significant | Satisfactory |
| Keswick Grove Lower Dam Ocean County | 8 | 1898 | Low | Satisfactory |
| Kenilworth Lake Dam Burlington County | 17 | — | Significant | Satisfactory |
| Kemah Lake Dam Sussex County | 17 | 1928 | High | Satisfactory |
| 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 |
| Jumping Brook Dam Monmouth County | 10 | 1907 | Low | Satisfactory |
| Johnson Lake Dam Sussex County | 11 | — | Low | Satisfactory |
| John'S Lake Dam Sussex County | 11 | — | Low | Satisfactory |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.