Interstate 55 in Missouri

Interstate 55
Interstate 55
	I-55 highlighted in red
Route information
	Maintained by MoDOT
Length	210.45 mi (338.69 km)
Existed	1956–present
NHS	Entire route
Major junctions
South end	I-55 at the Arkansas state line
	I-155 / US 412 near Hayti; I-57 / US 60 in Sikeston; US 62 in Sikeston; I-255 / I-270 in Mehlville; US 50 / US 61 / US 67 in Mehlville; I-44 in St. Louis; I-44 / I-64 / US 40 in St. Louis;
North end	I-55 / I-64 / US 40 in St. Louis
Location
Country	United States
State	Missouri
Counties	Pemiscot, New Madrid, Scott, Cape Girardeau, Perry, Ste. Genevieve, Jefferson, St. Louis, City of St. Louis
Highway system
	Interstate Highway System; Main; Auxiliary; Suffixed; Business; Future; Missouri State Highway System; Interstate; US; State; Supplemental;

Interstate 55 (I-55) in the US state of Missouri runs from the Arkansas state line to the Poplar Street Bridge over the Mississippi River in St. Louis.