138Total Dams
41High Hazard
38Significant
Dam Safety in Sussex County, New Jersey
Sussex County has 138 dams tracked in the National Inventory of Dams. Of these, 41 are classified as high hazard — meaning failure would probably cause loss of human life. Another 38 carry a significant hazard classification. Currently, 29 dams have a condition assessment of poor or unsatisfactory.
The average dam in Sussex County is 86 years old. The most common purpose is recreation. The tallest dam is Canistear Reservoir #1 Dam at 70 ft.
Explore more: Oldest dams in New Jersey · Tallest dams · High risk dams · Largest reservoirs
| Dam | Hazard | Condition | Height (ft) | Purpose | Year |
|---|---|---|---|---|---|
| Canistear Reservoir #1 Dam | High | Fair | 70 | Water Supply | 1896 |
| Canistear Reservoir #2 Dam | High | Fair | 44 | Water Supply | 1896 |
| Pleasant Valley Lake Dam | High | Poor | 31 | Recreation | |
| Paulinskill Water Shed #2 Dam | High | Satisfactory | 29 | Flood Risk Reduction | 1959 |
| Clove River Dam | High | Fair | 28 | Recreation | 1932 |
| Great Gorge Dam | High | Satisfactory | 28 | Water Supply | 1971 |
| Lake Lenape Dam | High | Satisfactory | 27 | Recreation | 1931 |
| Steenykill Lake Dam | High | Fair | 25 | Recreation | 1938 |
| Stump Pond Dam | High | Poor | 25 | Recreation | |
| Paulins Kill Site 4 Dam | High | Satisfactory | 24 | Flood Risk Reduction | 1961 |
| Robert Rooke Dam | High | Satisfactory | 23 | Recreation | 1963 |
| Highland Lakes Dam | High | Satisfactory | 22 | Recreation | 1937 |
| Lake Conway Dam | High | Poor | 21 | Recreation | 1958 |
| Forest Lake Dam | High | Satisfactory | 20 | Recreation | 1951 |
| Crandon Lake Dam | High | Satisfactory | 20 | Recreation | 1959 |
| Lake Mohawk Dam | High | Satisfactory | 20 | Recreation | 1927 |
| Morris Lake Dam | High | Satisfactory | 19 | Water Supply | 1895 |
| Cranberry Lake Dam | High | Poor | 18 | Recreation | |
| Upper Highland Lake Dam | High | Fair | 18 | Recreation | 1940 |
| Willow Crest Dam | High | Satisfactory | 17 | Recreation | 1965 |
| Kemah Lake Dam | High | Satisfactory | 17 | Recreation | 1928 |
| Lake Gerard Dam a | High | Satisfactory | 16 | Recreation | 1930 |
| Upper Mohawk Lake Dam | High | Satisfactory | 16 | Recreation | 1927 |
| East Cove Dam | High | Fair | 15 | Recreation | |
| Lake Gerard Dike B | High | Satisfactory | 15 | Recreation | |
| Lake Panorama Dike | High | Poor | 15 | Recreation | 1987 |
| Lake Tranquility Dam | High | Satisfactory | 14 | Recreation | 1932 |
| Wawayanda Lake Dam | High | Fair | 14 | Recreation | |
| Frenches Pond Dam | High | Satisfactory | 13 | Recreation | 1850 |
| Upper West Highland Lake Dam | High | Satisfactory | 13 | Recreation | 1958 |
| Reservoir Lake Dam | High | Satisfactory | 12 | Recreation | |
| Lake Rutherford Dam | High | Satisfactory | 12 | Water Supply | |
| Glen Lake Dam | High | Satisfactory | 12 | Recreation | 1922 |
| Lake Gerard Dike C | High | Satisfactory | 12 | Recreation | |
| Mountain Creek Lake Dam | High | Poor | 12 | Recreation | 1984 |
| Hidden Valley Lake Dam | High | Satisfactory | 10 | ||
| Lake Gerard Dam | High | Satisfactory | 10 | Recreation | 1930 |
| Lake Tamarack Dam | High | Satisfactory | 10 | Recreation | 1940 |
| Diversion Dam | High | Poor | 8 | Water Supply | 1959 |
| Heaters Pond Dam | High | Satisfactory | 8 | Recreation | 1910 |
| West Shore Trail Dam | High | Poor | 0 | ||
| Paulinskill Lake Dam | Significant | Satisfactory | 29 | Recreation | 1927 |
| Deer Trail Lake Dam | Significant | Satisfactory | 28 | Recreation | |
| Hidden Valley Lake Dam | Significant | Satisfactory | 25 | Recreation | 1967 |
| Tall Pines Farm Dam | Significant | Satisfactory | 23 | Recreation | 1957 |
| Branchville Reservoir Dam | Significant | Satisfactory | 22 | Water Supply | 1934 |
| Lake Neepaulin Dam | Significant | Satisfactory | 22 | Recreation | 1927 |
| Fawn Lake Dam | Significant | Poor | 22 | Recreation | 1940 |
| Hemlock Lake Dam | Significant | Poor | 20 | Recreation | 1951 |
| Cub Lake Dam | Significant | Satisfactory | 20 | Recreation | |
| Lake Panorama Dam | Significant | Poor | 20 | Recreation | 1957 |
| Lake Ashroe Dam | Significant | Satisfactory | 19 | Recreation | 1972 |
| Rock Island Lake Dam | Significant | Poor | 19 | Recreation | 1940 |
| Franklin Pond Dam | Significant | Fair | 18 | Recreation | |
| Skellinger Lake Dam | Significant | Poor | 16 | Other | |
| Lake Stockholm Dam | Significant | Satisfactory | 16 | Recreation | 1920 |
| Bear Pond Dam a | Significant | Satisfactory | 16 | Recreation | 1905 |
| Colesville Reservoir Dam | Significant | Poor | 15 | Water Supply | |
| Lake Lackawanna Dam | Significant | Fair | 15 | Recreation | 1910 |
| Rock Lodge Pond Dam | Significant | Satisfactory | 15 | 1907 | |
| Mcafee Glenwood Road Dam No. 2 | Significant | Satisfactory | 15 | Flood Risk Reduction | 2000 |
| Upper East Highland Lake Dam | Significant | Satisfactory | 15 | Recreation | 1957 |
| East Highland Lake Dam | Significant | Satisfactory | 15 | Recreation | 1947 |
| Lake Plymouth Dam | Significant | Unsatisfactory | 14 | Recreation | 1951 |
| Stewart Dam | Significant | Poor | 14 | Water Supply | 1965 |
| Sleepy Valley Dam | Significant | Satisfactory | 13 | Recreation | 1937 |
| Fountain House Dam | Significant | Poor | 12 | Recreation | 1956 |
| Lake Valentine Dam | Significant | Poor | 12 | Recreation | |
| Lake Grinnell Dam | Significant | Poor | 12 | Recreation | 1900 |
| New Jersey No Name # 11 Dam | Significant | Poor | 12 | Recreation | 1957 |
| Fox Hollow Lake Dam | Significant | Satisfactory | 12 | Recreation | 1925 |
| Seneca Lake Dam | Significant | Satisfactory | 11 | Recreation | |
| Clearview Lake Dam | Significant | Satisfactory | 10 | Recreation | 1960 |
| Bear Pond Dam B | Significant | Satisfactory | 10 | Recreation | 1900 |
| Camp Ryker Lake Dam | Significant | Satisfactory | 10 | Recreation | |
| Vernon Valley Lake Dam | Significant | Satisfactory | 9 | Recreation | |
| Mcafee Glenwood Road Dam No. 1 | Significant | Satisfactory | 8 | Flood Risk Reduction | 2000 |
| South Barry Lake Dike | Significant | Satisfactory | 6 | Recreation | |
| Summit Lake Dam | Significant | Satisfactory | 5 | Recreation | |
| Scenic Lake Dam | Low | Poor | 35 | Recreation | |
| Bear Pond Dam D | Low | Satisfactory | 33 | Recreation | 1905 |
| Lake Windsor Dam | Low | Satisfactory | 32 | Recreation | 1959 |
| New Jersey No Name # 14 Dam | Low | Not assessed | 25 | Water Supply | |
| Don Bosco Dam | Low | Satisfactory | 25 | Recreation | 1962 |
| Blue Mt Lake Dam | Low | Not assessed | 25 | Recreation | 1963 |
| Shay Lake Dam | Low | Satisfactory | 24 | Recreation | |
| Emilio Perona Dam | Low | Not assessed | 23 | Recreation | |
| Kofferls Pond Dam | Low | Not assessed | 20 | Recreation | |
| Cliffwood Lake Dike | Low | Fair | 20 | Recreation | |
| Cliffwood Lake Dam | Low | Satisfactory | 20 | Recreation | 1962 |
| Laidlaws Pond Dam | Low | Satisfactory | 20 | Recreation | 1998 |
| New Jersey No Name # 58 Dam | Low | Not assessed | 18 | Recreation | |
| Stony Lake Dam | Low | Fair | 17 | Recreation | 1926 |
| Perona Lake #1 Dam | Low | Not assessed | 17 | Recreation | 1929 |
| Swartswood Lake Dam | Low | Fair | 16 | Recreation | 1903 |
| Herzenberg Dam | Low | Not assessed | 16 | Recreation | 1960 |
| Lake Saginaw Dam | Low | Poor | 16 | Recreation | 1925 |
| Hemlock Pond Dam | Low | Not assessed | 15 | Recreation | |
| Lake Marcia Dam | Low | Not assessed | 15 | Recreation | |
| Sawmill Pond Dam | Low | Poor | 15 | Recreation | |
| Jefferson Lake Dam | Low | Poor | 15 | Recreation | |
| Lake Aeroflex Dam | Low | Poor | 15 | Recreation | |
| Wallkill Lake Dam | Low | Fair | 15 | Recreation | 1930 |
| Quick Pond Dam | Low | Not assessed | 15 | Recreation | |
| Long Pine Pond Dam | Low | Not assessed | 15 | Recreation | 1995 |
| Tomahawk Lake Dam | Low | Not assessed | 14 | Recreation | |
| Jefferson Lake Dike | Low | Not assessed | 14 | Recreation | |
| Deer Lake Dam | Low | Satisfactory | 14 | Recreation | |
| New Jersey No Name # 15 Dam | Low | Not assessed | 14 | Recreation | 1955 |
| Canistear Reservoir Dike | Low | Satisfactory | 14 | Water Supply | |
| Glauberman Lake Dam | Low | Not assessed | 13 | Recreation | 1933 |
| Thomas Rich Dam | Low | Not assessed | 13 | Recreation | 1926 |
| Sunset Lake Dam | Low | Satisfactory | 13 | Recreation | 1925 |
| New Jersey No Name # 64 Dam | Low | Not assessed | 13 | Recreation | |
| Mashipacong Pond Dam | Low | Not assessed | 12 | Recreation | |
| Kohout Lake Dam | Low | Not assessed | 12 | Recreation | 1939 |
| Lake Kathryn Dam | Low | Satisfactory | 12 | Recreation | 1926 |
| Beaver Lake Dam | Low | Satisfactory | 12 | Recreation | 1770 |
| Barry Lakes #2 Dam | Low | Satisfactory | 12 | Recreation | 1955 |
| Johnson Lake Dam | Low | Satisfactory | 11 | Recreation | |
| Clove Lake Dam | Low | Fair | 11 | Recreation | |
| John's Lake Dam | Low | Satisfactory | 11 | Recreation | |
| Silver Lake Dam | Low | Poor | 11 | Recreation | |
| Lake Owassa Dam | Low | Not assessed | 10 | Recreation | |
| Lake Kathryn South Dam | Low | Not assessed | 10 | Recreation | |
| Kittatinny Lake Dam | Low | Satisfactory | 10 | Recreation | 1923 |
| Lake Anne Dam | Low | Satisfactory | 10 | Recreation | 1950 |
| Perona Lake #2 Dam | Low | Not assessed | 10 | Recreation | |
| Balesville Dam | Low | Not assessed | 9 | Recreation | |
| Upper Waterloo Lake Dam | Low | Poor | 9 | Recreation | |
| Culvers Lake Dam | Low | Satisfactory | 8 | Recreation | 1965 |
| Hawthorne Lake Dam | Low | Satisfactory | 8 | Recreation | 1900 |
| Stag Pond Dam | Low | Satisfactory | 8 | Recreation | |
| Lower Crandon Lake Dam | Low | Poor | 8 | Recreation | |
| Barry Lakes #1 Dam | Low | Fair | 8 | Recreation | 1955 |
| Wildwood Lake Dam | Low | Not assessed | 7 | Recreation | |
| Blue Heron Lake Dam | Low | Not assessed | 7 | Recreation | |
| Lake Wanda Dam | Low | Poor | 7 | Recreation |