Interstate 43 -LRB- I-43 -RRB- is a 191.55 m intrastate Interstate Highway located entirely within the U.S. state of Wisconsin, connecting Interstate 39 and Interstate 90 in Beloit with Milwaukee and U.S. Route 41 and U.S. Route 141 in Green Bay. I-43 is the 5th longate Interstate Highway of the Interstate Highway system.
Interstate 43 est une autoroute inter-États dans l'État du Wisconsin aux États-Unis.