Pennsylvania Route 412

Pennsylvania Route 412
Route information
Maintained by PennDOT and City of Bethlehem
Length	17.745 mi[1] (28.558 km)
Existed	1928–present
Major junctions
South end	PA 611 in Nockamixon Township
Major intersections	PA 563 in Nockamixon Township PA 212 in Springfield Township I-78 in Hellertown
North end	PA 378 in Bethlehem
Location
Country	United States
State	Pennsylvania
Counties	Bucks, Northampton
Highway system
Pennsylvania State Route System Interstate US State Scenic Legislative
← PA 410 → PA 413

Pennsylvania Route 412 (PA 412) is a 17.75-mile-long (28.57 km) north–south state route located in Bucks and Northampton counties in southeastern Pennsylvania. Its southern terminus is at PA 611 in the Nockamixon Township community of Harrow. Its northern terminus is at PA 378 in Bethlehem.

The route passes through rural areas in northern Bucks County, forming a concurrency with PA 212 in the Springtown area. From there, PA 412 continues into Northampton County and passes through Hellertown before coming to an interchange with Interstate 78 (I-78) and heading into Bethlehem. In Bethlehem, PA 412 passes the former Bethlehem Steel site and runs through the South Side neighborhood.

PA 412 was originally part of the 18th-century Durham Road that ran through Bucks County and north into the Lehigh Valley. The route was first designated by 1927 between PA 212 in Springtown and PA 12 in Bethlehem. PA 412 was extended south to U.S. Route 611 (US 611) in Harrow by 1930. The route was realigned through the South Side of Bethlehem in the 1980s.