Interstate 579

Interstate 579 (I-579) is a north–south Interstate Highway entirely within Pittsburgh, Pennsylvania. The highway is 2.73 miles (4.39 km) long. I-579 is also known as the Crosstown Boulevard since it crosses the backside of Downtown Pittsburgh.

"Crosstown Boulevard" redirects here. For other uses, see Crosstown Expressway.

Interstate 579

Crosstown Boulevard
I-579 highlighted in red
Route information
Auxiliary route of I-79
Maintained by PennDOT
Length2.73 mi (4.39 km)
Existed1962–present
NHSEntire route
Major junctions
South end PA 885 in Pittsburgh
Major intersections PA 380 in Pittsburgh
North end

  •  I-279 / US 19 Truck / PA 28 in Pittsburgh
Location
CountryUnited States
StatePennsylvania
CountiesAllegheny
Highway system
  • Main
  • Auxiliary
  • Suffixed
  • Business
  • Future
  • Pennsylvania State Route System
  • Interstate
  • US
  • State
  • Scenic
  • Legislative
← PA Turnpike 576I-579→ PA 580
← PA 478I-479→ I-480
← PA 875I-876→ PA 876

The northern terminus of I-579 is at I-279 beyond the north end of the Veterans Bridge; the southern terminus splits to the Liberty Bridge southbound and Boulevard of the Allies eastbound, which leads to I-376 east. The intersection of I-579 and I-279 is in one direction only; northbound traffic on I-579 can proceed only northbound on I-279 while only southbound traffic on I-279 can exit onto I-579.

I-579 allows Liberty Bridge traffic easy access to I-279, and I-279 southbound traffic easier access to PPG Paints Arena, downtown, and eastern regions of the city, while I-279 southbound continues to Acrisure Stadium, PNC Park, and to westbound I-376 which leads to Pittsburgh International Airport.

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