US 1 (SC) Intersections with interstate highways 2024-10-08 Roadnow US 1 (SC) Intersections with interstate highways MAP I-20, near Lexington, South Dakota map nearbyMAP I-77, near Elgin, South Dakota map nearbyMAP I-77, near Elgin, South Dakota map nearbyMAP I-20 map nearbyMAP I-20, near Aiken, South Dakota map nearbyMAP I-26, near Lexington, South Dakota map nearbyMAP I-20, near Columbia, South Dakota map nearby