Live Chat I-20 Community Nearby Traffic Hi Roc Lake Dam (Water dam) 2024-09-25 Roadnow Weather | Gas | Restaurants | Hotels | Car Repair | Convenience Stores Cities close to Hi-Roc Lake Dam (Water Dam) Lithonia, GA 9.44 Snellville, GA 14.08 Oxford, GA 14.97 Interstate highway exits close to Hi-Roc Lake Dam (Water Dam) Exit 80, i20 3.73 Exit 75, i20 4.53 Exit 78, i20 4.55 Interstate highways close to Hi-Roc Lake Dam (Water Dam) i20 map 3.73 i285ga map 20.27 i675ga map 27.45 State roads close to Hi-Roc Lake Dam (Water Dam) GA 20 map 1.44 GA 12 map 3.67 GA 138 map 4.36