Business routes of Interstate 70

Business routes of Interstate 70 (I-70) exist in three states, though historically they have existed in five. Utah and Missouri each have three existing I-70 business routes. Business routes in Kansas have either been proposed and rejected or decommissioned. Another 13 I-70 business routes also exist in Colorado and four others have also existed in the past, leading to a grand total of 17 within the Centennial State.