PA 313) in Quakertown. The route followed its current alignment between PA 73 and Pennsburg before it followed Quakertown Road and Sleepy Hollow Road to Spinnerstown, where it turned east and followed Spinnerstown Road and Milford Square Pike to Quakertown. By 1967, the southern terminus of PA 663 was rerouted to PA 100 in Pottstown, heading west on King Street. In the 1960s, PA 663 was shifted from Milford Square Pike to a new alignment to the north between the Pennsylvania Turnpike Northeast Extension and Quakertown. After construction began in 1973, a new alignment of PA 663 to the south from Pennsburg to the Pennsylvania Turnpike Northeast Extension opened a year later, with the route moved off Quakertown Road, Sleepy Hollow Road, and Spinnerstown Road. Major intersections PA 663 Alternate Truck Pottstown Pennsylvania Route 663 Alternate Truck is a truck route around a weight-restricted bridge over the Manatawny Creek in Pottstown, on which trucks over 15 tons are prohibited. It follows PA 100, North State Street, and Manatawny Street and was signed in 2013. In October 2020, work began to replace the bridge, and traffic was diverted along local streets. Construction is expected to be completed in Spring 2022. Upper Hanover Township Pennsylvania Route 663 Alternate Truck was a truck route around a weight-restricted bridge over a branch of the Perkiomen Creek in Upper Hanover Township, on which trucks over 36 tons and combination loads over 40 tons are prohibited. It followed PA 73, PA 100, and Kutztown Road; it was signed in 2013 but decommissioned in 2018 following a bridge repair. See also References External links Pennsylvania Highways: PA 663 663 Transportation in Montgomery County, Pennsylvania Transportation in Bucks County, Pennsylvania