Interstate 579

Interstate 579 marker
Interstate 579
Crosstown Boulevard
Map
I-579 highlighted in red
Route information
Auxiliary route of I-79
Maintained by PennDOT
Length2.73 mi[1] (4.39 km)
Existed1962–present
NHSEntire route
Major junctions
South end PA 885 in Pittsburgh
Major intersections PA 380 in Pittsburgh
North end
Location
CountryUnited States
StatePennsylvania
CountiesAllegheny
Highway system
PA Turnpike 576I-579 PA 580
PA 478I-479 I-480
PA 875I-876 PA 876

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.

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.

  1. ^ "Table 2: Auxiliary Routes of the Dwight D. Eisenhower National System Of Interstate and Defense Highways". FHWA Route Log and Finder List. Federal Highway Administration. December 31, 2021. Retrieved June 7, 2022.