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 373
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Lake Morski Oko Dam Morris County | 12 | 1953 | Low | Satisfactory |
| Lake Musconetcong Dam Morris County | 14 | 1933 | High | Satisfactory |
| Lake Neepaulin Dam Sussex County | 22 | 1927 | Significant | Satisfactory |
| Lake Parsippany Dam Morris County | 13 | 1933 | High | Satisfactory |
| Lake Parsippany East Dike No. 2 Morris County | 5 | 1933 | High | Satisfactory |
| Lake Parsippany West Dike #1 Morris County | 8 | 1933 | High | Satisfactory |
| Lake Riconda Dam Passaic County | 14 | 1937 | Low | Satisfactory |
| Lake Riviera Dam Ocean County | 11 | — | Significant | Satisfactory |
| Lake Rutherford Dam Sussex County | 12 | — | High | Satisfactory |
| Lake Solitude Dam Hunterdon County | 42 | — | High | Satisfactory |
| Lake Stockholm Dam Sussex County | 16 | 1920 | Significant | Satisfactory |
| Lake Stockwell Dam Burlington County | 12 | 1926 | Significant | Satisfactory |
| Lake Tamarack Dam Sussex County | 10 | 1940 | High | Satisfactory |
| Lake Tappan Dam Bergen County | 34 | 1966 | High | Satisfactory |
| Lake Telemark Dam Morris County | 11 | 1924 | Significant | Satisfactory |
| Lake Tranquility Dam Sussex County | 14 | 1932 | High | Satisfactory |
| Lake Wasigan Dam Warren County | 10 | — | Low | Satisfactory |
| Lake Windsor Dam Sussex County | 32 | 1959 | Low | Satisfactory |
| Lambertville #2 Dam Hunterdon County | 17 | 1877 | High | Satisfactory |
| Laurel Springs Dam Camden County | 30 | — | Low | Satisfactory |
| Layton'S Lake Dam Salem County | 19 | 1972 | Significant | Satisfactory |
| Lebanon Forest #1 Dam Burlington County | 10 | — | Significant | Satisfactory |
| Leddell'S Pond Dam Morris County | 12 | — | Significant | Satisfactory |
| Ledgewood Pond Dam Morris County | 7 | — | Significant | Satisfactory |
| Lindy'S Lake Dam Passaic County | 24 | — | High | Satisfactory |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.