Live Chat I-70 Community Nearby Traffic Lake Saint Louis Dam (Water dam) 2024-05-08 Roadnow Weather | Gas | Restaurants | Hotels | Car Repair | Convenience Stores Cities close to Lake Saint Louis Dam (Water Dam) O Fallon, MO 5.67 Wentzville, MO 6.56 New Melle, MO 11.86 Interstate highway exits close to Lake Saint Louis Dam (Water Dam) Exit 214, i70 1.49 Exit 212, i70 2.19 Exit 216, i70 4.58 Interstate highways close to Lake Saint Louis Dam (Water Dam) i70 map 1.49 i64 map 16.29 i270mo map 30.45 State roads close to Lake Saint Louis Dam (Water Dam) US 40 MO map 1.88 US 61 MO map 4.88 MO 79 map 9.32