Pennsylvania Route 873 is a north-south, two-lane road in the Lehigh Valley region of Pennsylvania, mainly located in northern Lehigh County with a small section in Northampton County. Its southern terminus is at PA 309 in Schnecksville. Its northern terminus is at PA 248 in the Lehigh Township hamlet of Weiders Crossing. The route runs through rural areas in northern Lehigh County, intersecting the western terminus of PA 329 in Neffs. PA 873 passes through Slatington as Main Street before it crosses the Lehigh River into Northampton County and immediately reaches its northern terminus south of Lehigh Gap in Blue Mountain.
PA 873 northbound past its southern terminus at PA 309 in Schnecksville
PA 873 northbound in Slatington
Pennsylvania Route 309 is a state highway that runs for 134 miles (216 km) through eastern Pennsylvania. The route runs from an interchange between PA 611 and Cheltenham Avenue on the border of Philadelphia and Cheltenham Township north to an intersection with PA 29 in Bowman Creek, a village in Monroe Township in Wyoming County. The highway connects Philadelphia and its northern suburbs to Allentown and the Lehigh Valley, and Hazleton and Wilkes-Barre in Wyoming Valley.
PA 309 southbound along Cheltenham Avenue on the border of Philadelphia and Cheltenham Township
PA 309 northbound concurrent with US 202 Bus. in Montgomeryville
PA 309 northbound in Quakertown
PA 309 northbound at the interchange with I-78 and PA 145 in Lanark
