can you name other regions where the route is extended?
From Lafayette, Louisiana, to Kansas City, Missouri.
Interstate Highway System
The expansions have both created new designations and extended existing designations. For example, I-49, added to the system in the 1980s as a freeway in Louisiana, was designated as an expansion corridor, and FHWA approved the expanded route north from Lafayette, Louisiana, to Kansas City, Missouri. 
what is interstate 296? A part of the Interstate Highway System in the US state of Michigan. can you name any two states it connects? I-196 near downtown Grand Rapids and I-96 on the north side of Grand Rapids in Walker. when was it opened? In December 1962. under which act was it constructed? Federal Aid Highway Act of 1956. what is the speed limit to be followed while using this highway? UNANSWERABLE what are the other uses of it? Used to facilitate evacuations in the face of hurricanes and other natural disasters.
wiki:11578595
Interstate Highway System [SEP] Expansion
The Interstate Highway System has been expanded numerous times. The expansions have both created new designations and extended existing designations. For example, I-49, added to the system in the 1980s as a freeway in Louisiana, was designated as an expansion corridor, and FHWA approved the expanded route north from Lafayette, Louisiana, to Kansas City, Missouri. The freeway exists today as separate completed segments, with segments under construction or in the planning phase between them. In 1966, the FHWA designated the entire Interstate Highway System as part of the larger Pan-American Highway System, and at least two proposed Interstate expansions were initiated to help trade with Canada and Mexico spurred by the North American Free Trade Agreement (NAFTA).