Indiana State Road 550
State Road 550 exists in two portions. The western section is completely within Knox [County, Indiana|Knox County] and has a western terminus east of Emison at U.S. [Route 41 in Indiana|U.S. Route 41]/U.S. [Route 150 in Indiana|U.S. Route 150] and runs southeasterly to the U.S. [Route 50 in Indiana|U.S. Route 50]/US 150 concurrency in Wheatland. The eastern section terminates at both ends at US 150 in Martin County between Loogootee and Lacy.