Pennsylvania Route 999

Pennsylvania Route 999
Route information
Maintained by PennDOT
Length	9.445 mi[1] (15.200 km)
Existed	1928–present
Major junctions
West end	PA 441 in Washington Boro
Major intersections	PA 741 in Millersville
East end	PA 462 in Lancaster
Location
Country	United States
State	Pennsylvania
Counties	Lancaster
Highway system
Pennsylvania State Route System Interstate US State Scenic Legislative
← PA 998 → US 1

Pennsylvania Route 999 (PA 999) is a 9.44-mile-long (15.19 km), east–west state highway located in western Lancaster County, Pennsylvania. The western terminus is at PA 441, which has its southern terminus at this intersection, in Washington Boro. The eastern terminus is at PA 462 in Lancaster. PA 999 heads east from Washington Boro to rural areas to Millersville. Upon reaching Millersville, the route heads into developed areas and turns northeast, crossing PA 741. PA 999 continues northeast to its eastern terminus. The route is a two-lane undivided road its entire length. Between Millersville and Lancaster, the route follows a 19th-century private turnpike that runs along the Manor Road that was created in 1742. PA 999 was designated in 1928 between Millersville and U.S. Route 30 (US 30)/PA 1 (now PA 462) in Lancaster. The route was extended west to its current terminus at PA 441 in the 1950s.