Interstate 30 (abbreviated I-30), an Interstate Highway in the southern United States
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Interstate 345 (I-345 or IH-345) is the 1.4-mile freeway connecting Interstate 45 (which ends at the intersection with Interstate 30) with U.S. 75 (North Central Expressway) at the Woodall Rodgers Freeway (Spur 366) in Dallas.
Interstate 30 east of downtown (E R. L. Thornton Freeway) and Interstate 35E south of downtown (S R. L. Thornton Freeway) are named for him, as is the headquarters building of the Dallas County Community College District in downtown Dallas.