State highway in Pennsylvania, US
For the intersecting route connecting to Harrisburg, Pennsylvania, see
Interstate 283.
Pennsylvania Route 283 (PA 283), officially State Route 0300 or SR 0300 due to the presence of Interstate 283 (I-283), is a 29-mile-long (47 km) freeway in the U.S. state of Pennsylvania. It connects Harrisburg to Lancaster, paralleling the old U.S. Route 230 (US 230, now partly PA 230). The route follows a generally northwest–southeast direction but is signed east–west. The number was assigned based on the function the route serves as a southeastern extension of I-283, but I-283 and PA 283 are not the same roadway; the two intersect at a partial cloverleaf interchange.
Because it is a distinct route from I-283, it is one of only several state routes in Pennsylvania to use a different Location Referencing System designation from its signed number.