Four US - 71 business routes that connected to the affected section of US - 71 were redesignated as I - 49 business routes :
On December 12 , 2012 , a portion of US - 71 in Missouri was designated as Interstate 49 .
Four US - 71 business routes that connected to the affected section of US - 71 were redesignated as Interstate 49     business routes :
On December 12 , 2012 , a portion of US - 71 in Missouri was designated as Interstate 49 .