Location: Roosevelt Blvd and Cottman Ave, Philadelphia Shortly after the 13 junction we’ll approach PA 73. Location: Roosevelt Blvd and Cottman Ave, Philadelphia Turn right ahead for Route 73. Location: Roosevelt Blvd and Cottman Ave, Philadelphia Exit for Route 73 in both directions.  N to PA-532, S to PA-232  W to PA-232, E to US-13 … Continue reading U.S. Route 1, US-13 to PA-73