An update has been published to District 11 News on the PennDOT website. Please see below for details. Northbound I-579 Ramp to Route 28 Inspection Next Week in Pittsburgh. Pittsburgh, PA – PennDOT District 11 is announcing inspection activities on the ramp that carries traffic from northbound I-579 to northbound Route 28 in the City of Pittsburgh, Allegheny County will occur Monday, September 30 and Tuesday, October 1 weather permitting.