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 801–825 of 830
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| White Meadow Lake Dam Morris County | 15 | — | High | Satisfactory |
| Whites Pond Dam Bergen County | 11 | 1938 | Low | Fair |
| Wickapecko Dam Monmouth County | 13 | 1915 | Low | Not Rated |
| Wildcat Ridge Wma Dam Morris County | 10 | — | Low | Not Rated |
| Wildlife Drive Dike Atlantic County | 12 | 1959 | Low | Poor |
| Wildwood Dike Morris County | 8 | — | Low | Satisfactory |
| Wildwood Lake Dam Morris County | 13 | — | High | Satisfactory |
| Wildwood Lake Dam Sussex County | 7 | — | Low | Not Rated |
| Williams Dam Hunterdon County | 22 | — | Low | Not Rated |
| Willow Crest Dam Sussex County | 17 | 1965 | High | Satisfactory |
| Willow Grove Dam Salem County | 10 | — | Significant | Fair |
| Willow Pond Dam Burlington County | 8 | 1968 | Low | Not Available |
| Wilson Lake Dam Gloucester County | 6 | 1933 | Significant | Satisfactory |
| Wolf Den Dam Passaic County | 42 | 1927 | High | Satisfactory |
| Woodbury Creek Dam Gloucester County | 6 | 1961 | Significant | Satisfactory |
| Woodcliff Lake Dam Bergen County | 38 | 1906 | High | Satisfactory |
| Woodmere Dam Salem County | 13 | 1900 | Low | Not Rated |
| Woolman Lake Dam Burlington County | 5 | — | Significant | Satisfactory |
| Wreck Pond Dam Monmouth County | 20 | — | Low | Not Rated |
| Wrights Dam Ocean County | 12 | — | Low | Not Rated |
| Yantacaw Brook Dam Essex County | 8 | — | Significant | Poor |
| Yardley Road Lake Dam Morris County | 30 | — | High | Fair |
| Yards Creek Auxiliary Reservoir Dam Warren County | 22 | 1965 | Low | Satisfactory |
| Yards Creek Lower - Auxiliary Dike Warren County | 35 | 1965 | High | Satisfactory |
| Yards Creek Lower - Main Dam Warren County | 55 | 1965 | High | Satisfactory |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.