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 232
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Clyde Potts Reservoir Dam Morris County | 80 | 1932 | High | Fair |
| Clove River Dam Sussex County | 28 | 1932 | High | Fair |
| Clinton Reservoir Dam Passaic County | 56 | 1894 | High | Fair |
| Clementon Lake Dam Camden County | 19 | — | High | Satisfactory |
| Clearwater Detention Dam Union County | 22 | 1994 | High | Fair |
| Charlotteburg Dam Morris County | 102 | 1961 | High | Satisfactory |
| Centennial Lake Dam Burlington County | 18 | — | High | Poor |
| Cedar Grove West Res Dam Essex County | 55 | 1903 | High | Fair |
| Cedar Grove South Res Dam Essex County | 51 | 1903 | High | Satisfactory |
| Cedar Grove North Res Dam Passaic County | 51 | 1903 | High | Fair |
| Canoe Brook Reservoir #3 Dike Essex County | 40 | 1956 | High | Satisfactory |
| Canoe Brook Reservoir #3 Dam Essex County | 57 | 1956 | High | Satisfactory |
| Canoe Brook Reservoir #2 Dam Essex County | 29 | 1948 | High | Satisfactory |
| Canoe Brook Reservoir #1 Dam Essex County | 25 | 1929 | High | Satisfactory |
| Canistear Reservoir #2 Dam Sussex County | 44 | 1896 | High | Fair |
| Canistear Reservoir #1 Dam Sussex County | 70 | 1896 | High | Fair |
| Camp Beisler Dam Hunterdon County | 17 | 1971 | High | Poor |
| Btmua Reservoir Dam Ocean County | 20 | — | High | Satisfactory |
| Boonton Dam Morris County | 120 | 1905 | High | Satisfactory |
| Blair Lake Dam Warren County | 18 | 1903 | High | Fair |
| Birchwood Lake Dam Morris County | 20 | — | High | Poor |
| Bass Lake Dam Warren County | 30 | 1911 | High | Satisfactory |
| Barnegat Lake Dam Ocean County | 18 | 1937 | High | Fair |
| Ballinger Lake Dam Burlington County | 11 | — | High | Satisfactory |
| Atsion Lake Dam Burlington County | 19 | 1930 | High | Poor |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.