Pennsylvania Route 576

Pennsylvania Route 576 marker
Pennsylvania Route 576
Southern Beltway
Map
Open segment highlighted in red, proposed segment highlighted in blue
Route information
Maintained by PTC
Length19.2 mi (30.9 km)
ExistedOctober 11, 2006–present
Major junctions
West end I-376 and Pittsburgh International Airport in Findlay Township
Major intersections US 30 in Findlay Township
US 22 in Robinson Township, Washington County
East end I-79 in Cecil Township
Location
CountryUnited States
StatePennsylvania
CountiesAllegheny, Washington
Highway system
PA 572 I-579

Pennsylvania Route 576 (PA Turnpike 576), also known as the Southern Beltway, is a controlled-access toll road in the southern and western suburbs of Pittsburgh, Pennsylvania, United States. It is envisioned to serve as a southern beltway around the Greater Pittsburgh area between Pittsburgh International Airport and the historic Steel Valley of the Monongahela River.

The first segment of the highway between PA 60 (now I-376) and Pittsburgh International Airport in Findlay Township and US 22 in Robinson Township opened to traffic on October 11, 2006. The second segment of the highway between US 22 and I-79 in Cecil Township near the National Cemetery of the Alleghenies opened to traffic on October 15, 2021. The status of the final segment of the highway between I-79 and PA Turnpike 43 (the Mon–Fayette Expressway) is still pending,[1][2] with federal approval already given.

Like the Mon–Fayette Expressway, the Southern Beltway has no direct connection to the Pennsylvania Turnpike mainline despite being built and maintained by the Pennsylvania Turnpike Commission (PTC). Both highways, however, will have indirect connections with the turnpike's mainline via I-376.