State highway in Bucks County, Pennsylvania, United States
Pennsylvania Route 413 (PA 413) is a 31-mile-long (50 km), north–south state highway in Bucks County, Pennsylvania. The route runs from the New Jersey state line on the Burlington–Bristol Bridge over the Delaware River outside Bristol, where the road continues as Route 413 into New Jersey, north to PA 611 in Bedminster Township. The route passes through the lower and central portions of Bucks County, serving Bristol, Levittown, Langhorne, Newtown, and Buckingham. The route intersects U.S. Route 13 (US 13) and Interstate 95 (I-95) near Bristol, I-295 near Penndel, US 1 in Langhorne Manor, and US 202 in Buckingham.
The modern-day alignment of PA 413 roughly follows the Durham Road, an 18th-century road that connected Bristol to upper Bucks County. PA 413 was originally designated in 1928 to run from US 309 (Main Street) in Sellersville east to PA 113 in Blooming Glen. The route was extended to US 122 (now US 202) in Buckingham by 1930. In 1946, the northern terminus was moved to US 611 in Pipersville, with portions of the route between Sellersville and Pipersville becoming parts of PA 113 and PA 152. The route was also extended south to US 13 in Bristol by this time, replacing PA 101 between Bristol and Penndel and PA 113 between Penndel and Buckingham. The route was extended south to its current terminus and moved to its current alignment between Bristol and Penndel by 1950. In 1977, PA 413 was rerouted to bypass Newtown.