end of 2022 while construction on the portion of road from Coal Valley Road to Camp Hollow Road in West Mifflin is expected to begin in 2023. Work on the segment to Duquesne was projected to continue through 2027. Exit list Related roads In the 1990s, the Mon–Fayette Expressway project was expanded to include another highway, the Southern Beltway. The Southern Beltway is planned to be a high-speed east–west link between the Mon–Fayette Expressway, Interstate 79, U.S. Route 22, Interstate 376, and Pittsburgh International Airport. A section of the beltway between Pittsburgh International Airport/Interstate 376 and U.S. Route 22 opened to traffic in 2006. The new road has been designated as Pennsylvania Route 576. A section between U.S. 22 and I-79 is expected to be open by 2021, with the third section being between I-79 and a section of the Mon–Fayette Expressway near Finleyville, Pennsylvania just south of the current northern terminus. In order to provide access to certain interchanges within the Uniontown-to-Brownsville project, the PTC had to build several toll-free connectors, the most notable of which extended a four-lane section of U.S. Route 40 near Brownsville, eliminating a forty-year-old freeway stub in the process. Near Uniontown, the PTC constructed a four-lane road, named Northgate Highway, between U.S. Route 40 and Pennsylvania Route 51. In addition, a new connector was added to join Telegraph Road and Bull Run Road in Luzerne Township, potentially opening many acres of land to future development. The aforementioned access roads were necessary to provide access to exits 22, 15, and 26 respectively, but these routes were also designed to improve local connections and accommodate any future economic development in the interchanges' immediate vicinity. See also References External links Pennsylvania Highways: PA 43 Pennsylvania Highways: PA Turnpike 43 Interstate 79 to Mon/Fayette Expressway Pennsylvania Turnpike Commission (May 10, 2006) Mon/Fayette Expressway, Uniontown to Brownsville Project PA Route 51 to I-376 of the Mon Fayette Expressway Toll roads in Pennsylvania Limited-access roads in Pennsylvania Transportation in Allegheny County, Pennsylvania Transportation in Washington County, Pennsylvania Transportation in Fayette County, Pennsylvania Transportation in Monongalia County, West Virginia Pennsylvania Turnpike Commission