was first proposed in May 2009 by US Congressman Spencer Bachus; on May 18, 2012, it was approved by AASHTO. See also References External links Interstate Guide Profile for Interstate 22 X 22 22 Transportation in DeSoto County, Mississippi Transportation in Marshall County, Mississippi Transportation in Benton County, Mississippi Transportation in Union County, Mississippi Transportation in Pontotoc County, Mississippi Transportation in Lee County, Mississippi Transportation in Itawamba County, Mississippi Transportation in Marion County, Alabama Transportation in Walker County, Alabama Transportation in Jefferson County, Alabama