U.S. Route 111

U.S. Route 111
US 111 highlighted on a modern map
Route information
Auxiliary route of US 11
Existed	1926–1963
Major junctions
South end	US 1 in Baltimore, MD
Major intersections	I-695 near Timonium, MD US 30 in York, PA
North end	US 11 / US 15 in Lemoyne, PA
Location
Country	United States
States	Maryland, Pennsylvania
Counties	MD: City of Baltimore, Baltimore PA: York, Cumberland
Highway system
United States Numbered Highway System List Special Divided
← MD 110 MD → MD 112 ← PA 110 PA → PA 112

U.S. Route 111 (US 111) was a U.S. Highway that extended from Baltimore, Maryland north to the Harrisburg, Pennsylvania area. It replaced part of the Susquehanna Trail, partially signed as Pennsylvania Route 4, and was in turn replaced by Interstate 83 (I-83). Portions of its pre-freeway alignment are now Maryland Route 45 and I-83 Business (I-83 Bus.). Other old sections in Pennsylvania are now unsigned Quadrant Routes or township-maintained roads. US 111 extended north to the Pennsylvania–New York state line where U.S. Route 15 now crosses it between 1928 and 1937.^[1][2][3]