 Pennsylvania Route 73 ( PA 73 ) is a 62 @.@ 32 @-@ mile ( 100 @.@ 29 km ) long east – west state highway in southeastern Pennsylvania . It runs from PA 61 in Leesport southeast to the New Jersey state line on the Tacony @-@ Palmyra Bridge over the Delaware River in Philadelphia , where it continues as New Jersey Route 73 ( NJ 73 ) . PA 73 is maintained by the Pennsylvania Department of Transportation ( PennDOT ) .
 Hinweis : This article is part of a series about the highways of Pennsylvania. For other highways in Pennsylvania, see List of state highways in Pennsylvania .