Water Supply Dams in New Jersey
New Jersey has 96 water supply dams, of which 60 carry a high hazard classification. The dam stores water for municipal, industrial, or agricultural use, helping ensure a reliable supply for the surrounding area.
| # | Dam | County | Height (ft) | Hazard | Condition | Year |
|---|---|---|---|---|---|---|
| 1 | Round Valley South Dam | Hunterdon | 178 | High | Poor | 1961 |
| 2 | Monksville Dam | Passaic | 150 | High | Satisfactory | 1986 |
| 3 | Round Valley North Dam | Hunterdon | 135 | High | Poor | 1961 |
| 4 | Boonton Dam | Morris | 120 | High | Satisfactory | 1905 |
| 5 | Raymond Dam | Passaic | 103 | High | Satisfactory | 1928 |
| 6 | Charlotteburg Dam | Morris | 102 | High | Satisfactory | 1961 |
| 7 | Spruce Run Reservoir Dam | Hunterdon | 93 | High | Poor | 1964 |
| 8 | Round Valley Dike | Hunterdon | 80 | High | Poor | 1961 |
| 9 | Clyde Potts Reservoir Dam | Morris | 80 | High | Fair | 1932 |
| 10 | Great Notch Reservoir Dam | Passaic | 74 | High | Satisfactory | 1898 |
| 11 | Canistear Reservoir #1 Dam | Sussex | 70 | High | Fair | 1896 |
| 12 | Round Valley P&f Dike | Hunterdon | 68 | Low | ||
| 13 | Glendola Reservoir Dam | Monmouth | 65 | High | Satisfactory | 1961 |
| 14 | Green Swamp #4 Dam | Passaic | 65 | High | Satisfactory | 1925 |
| 15 | Green Swamp #2 Dam | Passaic | 65 | High | Satisfactory | 1925 |
| 16 | Midvale Dam | Passaic | 61 | High | Satisfactory | 1928 |
| 17 | Oak Ridge Reservoir Dam | Passaic | 60 | High | Poor | 1892 |
| 18 | Canoe Brook Reservoir #3 Dam | Essex | 57 | High | Satisfactory | 1956 |
| 19 | Clinton Reservoir Dam | Passaic | 56 | High | Fair | 1894 |
| 20 | Cedar Grove West Res Dam | Essex | 55 | High | Fair | 1903 |
| 21 | Manasquan Reservoir Dam | Monmouth | 53 | High | Satisfactory | 1990 |
| 22 | Trenton Reservoir Dam | Mercer | 52 | High | Fair | 1899 |
| 23 | Cedar Grove South Res Dam | Essex | 51 | High | Satisfactory | 1903 |
| 24 | Cedar Grove North Res Dam | Passaic | 51 | High | Fair | 1903 |
| 25 | Swimming River Reservoir Dam | Monmouth | 45 | High | Satisfactory | 1901 |
| 26 | Canistear Reservoir #2 Dam | Sussex | 44 | High | Fair | 1896 |
| 27 | Canoe Brook Reservoir #3 Dike | Essex | 40 | High | Satisfactory | 1956 |
| 28 | Split Rock Pond Dam | Morris | 39 | High | Satisfactory | 1948 |
| 29 | Woodcliff Lake Dam | Bergen | 38 | High | Satisfactory | 1906 |
| 30 | Warren Mill Dam | Hunterdon | 38 | High | Poor | 1916 |
| 31 | Hackettstown Res. Dam | Morris | 38 | High | Poor | |
| 32 | Lake Tappan Dam | Bergen | 34 | High | Satisfactory | 1966 |
| 33 | Orange Reservoir Dam | Essex | 34 | High | Fair | 1958 |
| 34 | Farrington Dam | Middlesex | 34 | High | Fair | 1926 |
| 35 | Macopin Reservoir Dam | Morris | 34 | High | Poor | 1892 |
| 36 | Echo Lake Intake Dam | Passaic | 32 | High | Fair | 1926 |
| 37 | Munson Dam | Salem | 32 | Low | Fair | 1934 |
| 38 | Kakeout Dam | Morris | 30 | High | Satisfactory | 1938 |
| 39 | Parsippany Dike | Morris | 30 | High | Satisfactory | 1905 |
| 40 | Mine Hill Reservoir Dam | Morris | 30 | Significant | Poor | 1896 |
| 41 | Overflow Weir Dam | Passaic | 30 | High | Satisfactory | 1928 |
| 42 | Pompton Lakes Dam | Passaic | 30 | High | Satisfactory | 1908 |
| 43 | Canoe Brook Reservoir #2 Dam | Essex | 29 | High | Satisfactory | 1948 |
| 44 | Green Swamp #1 Dam | Passaic | 29 | High | Satisfactory | 1926 |
| 45 | Great Gorge Dam | Sussex | 28 | High | Satisfactory | 1971 |
| 46 | Robinson's Branch Reservoir Dam | Union | 27 | High | Satisfactory | 1907 |
| 47 | Peapack-gladstone Res Dam | Morris | 26 | Low | Poor | |
| 48 | New Street Reservoir Dam | Passaic | 26 | High | Fair | 1925 |
| 49 | Oradell Reservoir Dam | Bergen | 25 | High | Fair | 1922 |
| 50 | Canoe Brook Reservoir #1 Dam | Essex | 25 | High | Satisfactory | 1929 |
| 51 | New Jersey No Name # 14 Dam | Sussex | 25 | Low | ||
| 52 | Campbells Pond Dam | Essex | 22 | Significant | Poor | 1899 |
| 53 | Echo Lake Spillway Dam | Passaic | 22 | High | Fair | 1926 |
| 54 | Branchville Reservoir Dam | Sussex | 22 | Significant | Satisfactory | 1934 |
| 55 | Lake Tappan Dike | Bergen | 20 | Low | ||
| 56 | Bear Brook Dam | Essex | 20 | Significant | Satisfactory | 1979 |
| 57 | Assunpink #8 Dam | Mercer | 20 | High | Poor | |
| 58 | Btmua Reservoir Dam | Ocean | 20 | High | Satisfactory | |
| 59 | Furnace Road Dam | Passaic | 20 | High | Satisfactory | 1928 |
| 60 | Morris Lake Dam | Sussex | 19 | High | Satisfactory | 1895 |
| 61 | Doughty Pond Dam | Atlantic | 18 | Significant | Satisfactory | 1914 |
| 62 | Oldham Pond Dam | Passaic | 18 | High | Satisfactory | 1849 |
| 63 | Green Swamp #3 Dam | Passaic | 18 | High | Satisfactory | 1926 |
| 64 | East Lake Dam | Cumberland | 17 | High | Satisfactory | |
| 65 | Lambertville #2 Dam | Hunterdon | 17 | High | Satisfactory | 1877 |
| 66 | Westons Arch Dam | Middlesex | 17 | Significant | Fair | 1919 |
| 67 | Indian Dam | Monmouth | 17 | Significant | Poor | 1937 |
| 68 | Weston Mill Pond Dam | Middlesex | 16 | Significant | Fair | 1916 |
| 69 | Boonton Reservoir Dam | Morris | 15 | Significant | Satisfactory | 1900 |
| 70 | Picatinny Lake | Morris | 15 | High | Fair | 1904 |
| 71 | Brown Dam | Salem | 15 | Low | Satisfactory | 1934 |
| 72 | Osborn Mills Dam | Somerset | 15 | Significant | Satisfactory | |
| 73 | Colesville Reservoir Dam | Sussex | 15 | Significant | Poor | |
| 74 | Kuehnle Pond Dam | Atlantic | 14 | Significant | Satisfactory | 1935 |
| 75 | Canistear Reservoir Dike | Sussex | 14 | Low | Satisfactory | |
| 76 | Stewart Dam | Sussex | 14 | Significant | Poor | 1965 |
| 77 | Kakeout Dike | Morris | 13 | High | Satisfactory | |
| 78 | Paulina Lake Dam | Warren | 13 | Significant | Poor | 1895 |
| 79 | Eden Mill Dam | Morris | 12 | Significant | Poor | |
| 80 | Lake Denmark | Morris | 12 | High | Poor | 1904 |
| 81 | Lake Rutherford Dam | Sussex | 12 | High | Satisfactory | |
| 82 | Green Branch Dam | Ocean | 11 | Low | ||
| 83 | Deep Run Dam | Middlesex | 10 | Low | Satisfactory | 1988 |
| 84 | Davidsons Mill Pond Dam | Middlesex | 10 | Significant | Fair | 1950 |
| 85 | Jumping Brook Dam | Monmouth | 10 | Low | Satisfactory | 1907 |
| 86 | Stabilization/leveling Pond Dam | Monmouth | 10 | Low | Satisfactory | 1975 |
| 87 | Levine Reservoir Dam | Passaic | 10 | Significant | Fair | |
| 88 | Bellman Br. Bleachery Dam | Bergen | 9 | Low | ||
| 89 | Canoe Brook Dam | Essex | 9 | Low | Poor | 1880 |
| 90 | Quinton Pond Dam | Salem | 9 | Significant | Satisfactory | |
| 91 | Bottom's Lake Dam | Camden | 8 | Significant | Poor | 1938 |
| 92 | Magnolia Lake Dam | Cape May | 8 | Significant | Poor | 1684 |
| 93 | Wildwood Dike | Morris | 8 | Low | Satisfactory | |
| 94 | Cedar Pond Dam | Passaic | 8 | Low | Poor | 1920 |
| 95 | Island Farm Weir Dam | Somerset | 8 | Low | Satisfactory | |
| 96 | Diversion Dam | Sussex | 8 | High | Poor | 1959 |