Live Chat I-80 Community Nearby Traffic Jefferson Lake Dam (Water dam) 2024-05-23 Roadnow Weather | Gas | Restaurants | Hotels | Car Repair | Convenience Stores Cities close to Jefferson Lake Dam (Water Dam) Netcong, NJ 2.28 Landing, NJ 4.57 Hopatcong, NJ 4.70 Interstate highway exits close to Jefferson Lake Dam (Water Dam) Exit 25, i80 1.72 Exit 26, i80 2.68 Exit 27, i80 3.14 Interstate highways close to Jefferson Lake Dam (Water Dam) i80 map 1.72 i287nj map 23.96 i78 map 29.86 State roads close to Jefferson Lake Dam (Water Dam) NJ 183 map 0.51 NJ SUSSEX 602 map 0.81 NJ SUSSEX 601 map 1.13