Interstate 83

Interstate 83
I-83 highlighted in red; I-83 Bus. in blue
Route information
Maintained by Baltimore DOT, MDSHA, PennDOT
Length	85.03 mi[1] (136.84 km)
Existed	1959[2]–present
NHS	Entire route
Major junctions
South end	President Street / Fayette Street in Baltimore, MD
Major intersections	US 1 in Baltimore, MD I-695 / MD 25A near Timonium, MD US 30 in York, PA I-76 / Penna Turnpike near Camp Hill, PA PA 581 in Lemoyne, PA I-283 / US 322 near Paxtang, PA US 22 near Progress, PA
North end	I-81 / US 322 near Progress, PA
Location
Country	United States
States	Maryland, Pennsylvania
Counties	MD: City of Baltimore, Baltimore PA: York, Cumberland, Dauphin
Highway system
Interstate Highway System Main Auxiliary Suffixed Business Future
← I-81 MD → MD 84 ← PA 82 PA → PA 83

Interstate 83 (I-83) is an Interstate Highway located in the states of Maryland and Pennsylvania in the Eastern United States. Its southern terminus is at a signalized intersection with Fayette Street in Baltimore, Maryland; its northern terminus is at I-81 near Harrisburg, Pennsylvania. I-83 runs from Downtown Baltimore north to I-695 near the northern suburb of Timonium on the Jones Falls Expressway before forming a concurrency with I-695. After splitting from I-695, the route follows the Baltimore–Harrisburg Expressway north to the border between Maryland and Pennsylvania. Upon crossing the state line, I-83 becomes the Veterans of Foreign Wars of the United States Memorial Highway and continues north through York toward the Harrisburg area. The route runs along the southern and eastern portion of the Capital Beltway that encircles Harrisburg before reaching its northern terminus.

Most of the route south of Lemoyne, Pennsylvania, is a direct replacement of U.S. Route 111 (US 111), a former spur of US 11.