Future I-49 South: Official Louisiana Department of Transportation and Development website for the extension from Lafayette to New Orleans.
Future I-49, Lafayette to New Orleans: Unofficial page on this extension. Photos included.
I49 South: Promotes the planned southern extension of Interstate 49 from Lafayette to New Orleans.
Lafayette Metropolitan Expressway Commission: Official website regarding plans to build an expressway in the vicinity of the city. Includes meeting information.
Louisiana Department of Transportation and Development: Official site.
Louisiana Interstates: History and some future plans.