 Pennsylvania Route 143 ( PA 143 ) is a 20 @-@ mile @-@ long ( 32 km ) state highway in Pennsylvania . It runs from PA 662 in Richmond Township , Berks County northeast to PA 309 near New Tripoli in Lehigh County . The route passes through rural areas , intersecting Interstate 78 ( I @-@ 78 ) / U.S. Route 22 ( US 22 ) in Heidelberg Township and Jackson Township in Lehigh County . PA 143 was designated in 1953 to run from PA 662 to PA 309. The route was extended to its current length in 1955. The route is