Editing Interstate 579 (section)

{{short description|Highway in Pennsylvania}}
{{Redirect|Crosstown Boulevard|other uses|Crosstown Expressway (disambiguation){{!}}Crosstown Expressway}}
{{Use mdy dates|date=June 2022}}
{{Use American English|date=June 2022}}
{{Infobox road
| state = PA
| type = I
| route = 579
| alternate_name = Crosstown Boulevard
| map = {{maplink-road}}
| map_custom = yes
| map_notes = I-579 highlighted in red
| length_mi = 2.73
| length_ref = <ref>{{cite web |date=December 31, 2021 |title=Table 2: Auxiliary Routes of the Dwight D. Eisenhower National System Of Interstate and Defense Highways |url=https://www.fhwa.dot.gov/planning/national_highway_system/interstate_highway_system/routefinder/table02.cfm |access-date=June 7, 2022 |work=FHWA Route Log and Finder List |publisher=[[Federal Highway Administration]]}}</ref>
| established = 1962
| direction_a = South
| terminus_a = {{jct|state=PA|PA|885}} / [[Liberty Bridge (Pittsburgh)|Liberty Bridge]] in [[Pittsburgh]]
| junction = {{Jct|state=PA|PA|380}} in Pittsburgh
| direction_b = North
| terminus_b = {{plainlist|*{{jct|state=PA|I|279|US-Truck|19|dab2=Pittsburgh|PA|28}} in Pittsburgh}}
| counties = [[Allegheny County, Pennsylvania|Allegheny]]
| previous_type = Toll
| previous_route = 576
| next_type = PA
| next_route = 580
| browse = {{pa browse|previous_type=PA|previous_route=478|route=I-479|next_type=I 1957|next_route=480}}
{{pa browse|previous_type=PA 1926|previous_route=875|route=I-876|next_type=PA 1926|next_route=876}}
| spur_type = I
| spur_of = 79
| browse_route = I-579
}}
'''Interstate 579''' ('''I-579''') is a north–south [[Interstate Highway]] entirely within [[Pittsburgh]], [[Pennsylvania]]. The highway is {{convert|2.73|mi|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 [[Interstate 279|I-279]] beyond the north end of the [[Veterans Bridge (Pittsburgh)|Veterans Bridge]]; the southern terminus splits to the [[Liberty Bridge (Pittsburgh)|Liberty Bridge]] southbound and [[Boulevard of the Allies]] eastbound, which leads to [[Interstate 376|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]].