Interstate 579 - Route Description

Route Description

I-579 begins at an interchange with PA 885 (Boulevard of the Allies) and the approach to the Liberty Bridge over the Monongahela River in Downtown Pittsburgh, heading to the north-northeast as a four-lane freeway. At the southern terminus, the highway has a northbound exit and southbound entrance providing access to 6th Avenue and Forbes Avenue near Duquesne University. The road passes several skyscrapers as it comes to an interchange at Centre Avenue with a northbound exit and southbound entrance that provides access to the Consol Energy Center. Immediately following is a left exit in the northbound direction and a southbound entrance that connects to 7th Avenue that serves the David L. Lawrence Convention Center. At this point, I-579 runs to the west of the former site of the Civic Arena and comes to the PA 380 interchange, a northbound exit and southbound entrance, in addition to a southbound exit and northbound entrance accessing 6th Avenue and 7th Avenue. The freeway turns north as it passes over railroad tracks to the east of Union Station, the Amtrak station serving Pittsburgh. Here, it is seven lanes total with three travel lanes in each direction and two reversible high-occupancy vehicle lanes in the center. The HOV lanes connect to Bedford Avenue near the Civic Arena at the south end. The highway turns northwest as it crosses the Allegheny River on the Veterans Bridge. A short distance after the bridge, I-579 ends at an interchange with I-279/US 19 Truck and PA 28, at which point the route merges into northbound I-279 with ramps to and from northbound PA 28.

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