 From its initial opening in 1961 until 1964 , I @-@ 194 also carried the BL I @-@ 94 and M @-@ 78 designations . BL I @-@ 94 was rerouted in Battle Creek to Martin Luther King Drive and M @-@ 78 in 1964 , and M @-@ 78 was replaced by M @-@ 66 in 1965 . The last change to the I @-@ 194 routing was the extension of the northern end of the freeway from Columbia Avenue to Michigan Avenue in 1966 . At the time , MDOT 's predecessor , the Michigan State Highway Department , called all auxiliary Interstate Highways " Penetrator " when planning the freeway network in the state ; a name which stuck to I @-@ 194 . 
