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 332
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Hankins Pond Dam Cumberland County | 9 | — | Significant | Poor |
| Hands Mill Dam Cumberland County | 10 | — | Significant | Fair |
| Hammonton Lake Dam Atlantic County | 13 | 1902 | Significant | Poor |
| Haddon Lake Dam Camden County | 20 | 1917 | Significant | Poor |
| Hackensack Golf Club Dam Bergen County | 12 | 1950 | Significant | Satisfactory |
| Grover'S Mill Dam Mercer County | 15 | 1931 | Significant | Fair |
| Grenloch Lake Dam Gloucester County | 21 | 1907 | Significant | Fair |
| Green Street Dam Middlesex County | 8 | 1988 | Significant | Satisfactory |
| Glen Wild Lake Dam Passaic County | 21 | 1918 | Significant | Fair |
| Gifford'S Mill Dam Ocean County | — | — | Significant | Poor |
| George Lake Dam Morris County | 30 | 1909 | Significant | Poor |
| Franklinville Lake Dam Gloucester County | 8 | — | Significant | Poor |
| Franklin Pond Dam Sussex County | 18 | — | Significant | Fair |
| Fox Hollow Lake Dam Sussex County | 12 | 1925 | Significant | Satisfactory |
| Fox Chase Dam Somerset County | 12 | — | Significant | Poor |
| Fountain House Dam Sussex County | 12 | 1956 | Significant | Poor |
| Forest Hill Park Dam Passaic County | 22 | — | Significant | Satisfactory |
| Forest Drive Dam Ocean County | 10 | — | Significant | Satisfactory |
| Fayson Lakes (West) Dam Morris County | 15 | 1922 | Significant | Satisfactory |
| Fayson Lakes (South) Dam Morris County | 8 | 1938 | Significant | Satisfactory |
| Fayson Lakes (East) Dam Morris County | 17 | 1926 | Significant | Satisfactory |
| Fawn Lake Dam Sussex County | 22 | 1940 | Significant | Poor |
| Ewans Mill Dam Gloucester County | 15 | — | Significant | Poor |
| Evans Pond Dam Camden County | 7 | 1913 | Significant | Poor |
| Englishtown Lake Dam Monmouth County | 13 | 1959 | Significant | Poor |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.