Bath Pike, Walnut Street, Moorestown Drive, South Broadway, North Broadway, Park Avenue, Lehigh Avenue, Pennsylvania Avenue, East Main Street, Blue Valley Drive, Market Street, South Main Street, West Central Avenue, East Central Avenue, Mount Bethel Highway

Direction:
North/South
Southern Terminus:
Lehigh Valley Thruway (US 22) in Bethlehem
Northern Terminus:
North Delaware Drive (PA 611) in Mount Bethel
Distance:
26.13 miles
Counties:
Northampton
Signed:
Yes

PA 512 is a quarter-circle route in the Lehigh Valley and the Poconos. It begins at the Lehigh Valley Thruway (US 22) in Bethlehem and runs north along Bath Pike to Bath. There, it curves to the northeast to reach Wind Gap, where there is an interchange with the PA 33 expressway. It continues northeast to Mount Bethel, where it ends at North Delaware Drive (PA 611), a little over a mile away from the Delaware River.

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