Business Loop Interstate 70 is a short loop into Downtown St. Charles. It runs along Fifth Street then up First Capital Drive back to Interstate 70. BUSN Loop I-70 passes through the following town in St. Charles County. St. Charles
A BGS on EB I-70. A BGS on WB I-70. A BGS on WB I-70. A guide marker on 5th & 1st Capital in St. Charles. NB BNLP I-70 in St. Charles. NB BNLP I-70 north of I-70. A BGS on WB I-70. A BOS on WB I-70. Another BOS on WB I-70. A BGS on WB I-70. A BGS on WB I-70. A BGS on WB I-70.
