Until 1987, there were but two major four-lane highways in Mississippi, not counting the Interstates, which were built during the 1960s and 1970s: U.S. Highway 49 (US 49) from Yazoo City to Gulfport and US 82 between Greenville and Winona. Things changed when the state legislature launched the $1.3 billion Four-Lane Highway Program of 1987.
Prior to 1987, Mississippi had only two major four-lane highways, excluding Interstate routes, which were built in the 1960s and 1970s: U.S. Highway 49 (US 49) from Yazoo City to Gulfport and US 82 between Greenville and Winona. The state's highway network expanded with the launch of the $1.3 billion Four-Lane Highway Program in 1987.