is a 10-mile (16 km) business route of US 202 in Montgomery and Bucks counties in the U.S. state of Pennsylvania, running between Montgomeryville and Doylestown.

The route heads northeast from US 202 in Upper Gwynedd Township along five-lane Dekalb Pike through residential and commercial areas.

The road between Montgomeryville and Doylestown was originally designated as US 122 in 1926, with PA 52 running concurrent for a short time in the late 1920s.

In 2012, US 202 was moved to a newly built parkway running between Montgomeryville and Doylestown, leaving the former alignment without a signed route designation.

begins at an intersection with US 202 in Upper Gwynedd Township, Montgomery County, heading north on Dekalb Pike, a five-lane road with a center left-turn lane.

Upon crossing PA 63, the route enters Montgomery Township in the North Penn Valley region and continues past commercial development before curving northeast and becoming a four-lane undivided road that passes residential subdivisions.

[2][3][4] The route passes businesses as a two-lane divided road before gaining a center turn lane and running through wooded residential areas, heading to the southeast of a golf course and housing development.

Here, the route becomes West Butler Avenue, heading past businesses before running through a mix of residential and commercial development.

The road crosses into the borough of Chalfont and passes through wooded areas of homes prior to reaching an intersection with PA 152.

At this point, PA 152 joins US 202 Bus., with the road crossing the West Branch Neshaminy Creek and heading into a business district.

becomes East Butler Avenue, running past residences before crossing the North Branch Neshaminy Creek in a wooded area.

The road enters Doylestown Township and becomes West State Street, curving northeast and widening to a four-lane divided highway.