 MSHD had plans to upgrade the US 16 corridor to freeway standards in the middle of the 20th century . The first planning map in 1947 for what later became the Interstate Highway System showed a highway in the corridor . The General Location of National System of Interstate Highways Including All Additional Routes at Urban Areas <unk> in September 1955 , or Yellow Book after the cover color , showed <unk> plans for the locations of Interstate Highways as designated in 1955 . This also included a highway in the US 16 corridor . The 1957 approval for the Interstate Highway System replaced much of US 16 with a portion of Interstate 94 ( I @-@ 94 ) . MSHD submitted a recommended numbering plan for the <unk> in 1958 that showed I @-@ 96 following the US 16 corridor . 
