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Pennsylvania Route 576
Pennsylvania Route 576 (PA 576), the Southern Beltway, is a partially completed tolled highway in the southern suburbs of Pittsburgh, Pennsylvania, United States. Upon completion it will serve as a southern beltway around the metro Pittsburgh area from the Pittsburgh International Airport to the historic Steel Valley of the Monongahela River.
The first section of the highway from Interstate 376 near Pittsburgh International Airport to U.S. Route 22 opened on October 11, 2006 at 3 p.m. Construction on a segment of the beltway that will link US 22 to I-79 near the National Cemetery of the Alleghenies is currently underway and planned for a 2019 opening, while the final segment from I-79 to PA Turnpike 43 is pending.〔(Construction on Southern Beltway set for spring ) ''Beaver County Times'' (January 14, 2014)〕〔(Phase II Of Southern Beltway Underway ) KDKA-TV (January 14, 2014)〕 Federal approval has been given for both segments. Although PA 576 runs north–south between I-376 and US 22, the route is signed as east–west to reflect the routing that the completed beltway will take; PA 576 will begin to have a more general east–west routing when the second leg to I-79 opens in 2019.〔(【引用サイトリンク】title=PA Turnpike News Release )〕
Like the Mon–Fayette Expressway, the Southern Beltway will have no direct connection to the Pennsylvania Turnpike's mainline despite being built and maintained by the Pennsylvania Turnpike Commission (PTC). (Both the tolled section of Interstate 376 and the tolled section of PA 66 as well as the Northeast Extension have direct connections to the Turnpike's mainline.) Both highways, however, will have indirect connections with the Turnpike's mainline via I-376.
==Route description==
PA 576 begins at an interchange with I-376 and the entrance to Pittsburgh International Airport in Findlay Township, Allegheny County. From here, the route heads southwest as a four-lane freeway. The road heads through wooded areas, where it curves south and comes to an interchange with US 30. Past this interchange, PA 576 continues through more rural areas and reaches the Westport Road interchange. Following this, the freeway crosses into Robinson Township in Washington County and heads south to reach its current eastern terminus at an incomplete three-level diamond interchange with US 22.〔 PA 576 is signed as an east-west route even though it currently runs southwest-northeast, with the eastbound direction heading southwest and the westbound direction heading northeast.〔
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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