Marie (excluding the Mackinac Bridge), I-69 from Business Loop 69 in Clinton County to I-94 in St. Clair County (excluding the section in and around Flint, which remains at 70 mph ), US 127 from I-69 in Clinton County to I-75 in Crawford County (excluding the 15-mile stretch between St. Johns and Ithaca, which is not freeway standard), and US 131 from M-57 in Kent County to the end of the freeway north of Manton.