Live Chat I-55 Community Nearby Traffic Porter Lake Dam (Water dam) 2024-09-26 Roadnow Weather | Gas | Restaurants | Hotels | Car Repair | Convenience Stores Cities close to Porter Lake Dam (Water Dam) Crystal City, MO 4.90 Hematite, MO 5.71 Herculaneum, MO 8.39 Interstate highway exits close to Porter Lake Dam (Water Dam) Exit 174b a, i55 1.25 Exit 175, i55 2.87 Exit 170, i55 5.46 Interstate highways close to Porter Lake Dam (Water Dam) i55 map 1.25 i255il map 35.22 i270mo map 35.65 State roads close to Porter Lake Dam (Water Dam) US 67 MO map 0.67 US 61 MO map 1.02 MO 110 map 7.96