 Major changes to the routing of M @-@ 47 started in December 1960 when the I @-@ 75 / US 10 / US 23 freeway opened between Saginaw and Bay City . US 10 was rerouted east of Midland to Bay City along the M @-@ 20 freeway . M @-@ 47 was rerouted along the former US 10 from Saginaw to east of Midland using a connector expressway from Freeland north to the US 10 freeway . M @-@ 81 was extended over State Street in Saginaw , and the former routing of M @-@ 47 between Saginaw and Bay City was redesignated as M @-@ 84 . M @-@ 13 also replaced the former US 23 / M @-@ 47 when US 23 was moved to freeways as well . The southern end of M @-@ 47 was changed in 1962 with the completion of I @-@ 96 in the Lansing area . US 16 was replaced by M @-@ 43 , and the southern terminus of M @-@ 47 was moved to exit 122 along I @-@ 96 . This segment of M @-@ 47 south of M @-@ 46 became an extension of M @-@ 52 in 1969 , <unk> M @-@ 47 to Hemlock . The interchange at <unk> Road north of Freeland opened in 1970 , and the expressway segment was upgraded to a full freeway . At the same time , M @-@ 47 was truncated to its current routing , resulting in the elimination of the M @-@ 46 / M @-@ 47 concurrency near Shields . In the end , only about a mile and a half ( 2 @.@ 4 km ) of roadway still bears the M @-@ 47 from before the changes made starting in 1960 , along a section of road that was not originally part of the highway in 1919 . 
