Indiana State Road 13

State Road 13
SR 13 highlighted in red
Route information
Maintained by INDOT
Length	138.632 mi[1] (223.107 km)
Existed	1931[2]–present
Major junctions
South end	US 36 / SR 67 at Fortville
Major intersections	I-69 north of Fortville US 35 near Swayzee US 24 at Wabash US 30 at Pierceton US 6 at Syracuse US 33 near Syracuse US 20 near Middlebury I-80 / I-90 / Indiana Toll Road / US 131 near Middlebury
North end	US 131 near Middlebury
Location
Country	United States
State	Indiana
Counties	Hancock, Madison, Grant, Wabash, Kosciusko, Elkhart
Highway system
Indiana State Highway System Interstate US State Scenic
← US 12 → SR 14

State Road 13 (SR 13) is a north–south state road in the US state of Indiana. The southern terminus is at an intersection with U.S. Highway 36 (US 36) and SR 67, in the town of Fortville, and its northern terminus is at the Michigan state line. At its northern end, signage for SR 13 ends at the interchange with the Indiana Toll Road; the highway continues unsigned for an additional 0.6 miles (0.97 km) running concurrently with US 131 to the state line. The state road runs through six counties in central and north-central Indiana mostly through rural farm fields and small towns.

Dating back to the early days of the state road system, SR 13 was first signed in the eastern and northeastern part of the state. It was moved to its modern routing in 1931, running in two segments with the southern end in Indianapolis and the northern end at the Michigan state line. During the late 1930s, SR 13 was moved onto its modern routing in far southern Elkhart County. The southern end was moved from Indianapolis to Greenfield in the late 1930s or early 1940s. The north–south concurrency with US 33 was added in the early 1970s and the southern terminus was moved to Fortville in the mid-to-late 1970s.