The Allegheny River Turnpike Bridge carries Interstate 76 (Pennsylvania Turnpike) over the Allegheny River. The structure features a pair of twin 2,350’ cast-in-place concrete segmental bridges. This is the first of its type in Pennsylvania. It was constructed between 2007 and 2010 and is the second bridge to stand on this site. The original truss bridge was built between 1949 and 1951 by the engineering firm Modjeski & Masters; the crossing predates the Interstate System by several years.
The replacement bridge was designed by the engineering firm Figg and built by Walsh Construction. The purpose of the new structure was to increase the capacity of traffic from two lanes in each direction to three; this was done to eliminate a bottleneck at the exit with Pennsylvania Route 28, which branches off at the bridge approach on the Harmar side of the river.[1]
The replacement eastbound bridge opened in November 2009. It carried both eastbound and westbound traffic across the Allegheny River until the project was finished one year later.
On Tuesday, July 13, 2010, just after 10 a.m., the old steel structure of the Allegheny River Bridge was imploded with controlled demolition explosives. Roadway traffic was stopped for approximately 15–20 minutes, and river traffic was stopped for 24 hours for cleanup of the debris from the bridge.
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The AlleghenyRiverTurnpikeBridge carries Interstate 76 (Pennsylvania Turnpike) over the AlleghenyRiver. The structure features a pair of twin 2,350’...
Line, the AlleghenyRiver, and the Allegheny Valley Railroad's Allegheny Subdivision line on the six-lane AlleghenyRiverTurnpikeBridge. After crossing...
Pennsylvania Turnpike (Interstate 76) and the Bessemer and Lake Erie Railroad Branch of the Canadian National Railway cross the AlleghenyRiver at the middle...
and original Allegheny Mountain tunnels were bypassed during the original construction of the turnpike. By the late 1950s, the turnpike was so heavily...
Jonathon Hulton Bridge, built in 1908, was the first major bridge designed by Allegheny County, Pennsylvania. Spanning the AlleghenyRiver, it connected...
current bridges and other crossings of the AlleghenyRiver starting from Pittsburgh, Pennsylvania, where it joins the Monongahela to form the Ohio River. Transport...
division. The name is derived from the AlleghenyRiver, which drains only a small portion of the Alleghenies in west-central Pennsylvania. The meaning...
the southeastern part of the state northeast to the Delaware River–Turnpike Toll Bridge at the New Jersey state line near Bristol in Bucks County, closely...
includes what will be the highest bridges on Pennsylvania Turnpike system". paturnpike.com. Pennsylvania Turnpike Commission. Archived from the original...
spans the Monongahela River in Downtown Pittsburgh, Pennsylvania. The only cable suspension bridge that is located in Allegheny County, its 725-foot (221 m)...
located within the Allegheny Plateau. It runs from I-80 near Sharon south and east to a junction with the Pennsylvania Turnpike (I-76, its parent) in...
across the Mississippi River. The road has also been referred to as the Cumberland Turnpike, the Cumberland–Brownsville Turnpike (or Road or Pike), the...
County, arriving in 1841. At Beverly, the turnpike spanned the Tygart Valley River where the Beverly Covered Bridge was constructed in 1845-47 by Lemuel Chenoweth...
Pennsylvania at the confluence of the AlleghenyRiver and the Monongahela River, which combine to form the Ohio River. It developed as a vital link of the...
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...
highway, the turnpike commission began upgrading all of its two-lane tunnels, constructing twin bores for its tunnels through the Allegheny, Tuscarora,...
in Butler County, and has no exits in it. It crosses the AlleghenyRiver on the Emlenton Bridge near Emlenton. Jefferson County at milemarker 73 is known...
About half of this route is concurrent with I-76 on the Pennsylvania Turnpike, which is a toll road. This is the oldest segment of I-70 in Pennsylvania...
Kanawha River, a tributary of the Ohio River. For the most mountainous section between the two points, the James River and Kanawha Turnpike was built...
The Northwestern Turnpike is a historic road in West Virginia (Virginia at the time the road was created), important for being historically one of the...
accessed by a path and a walkway underneath the bridge. Much of the former James River and Kanawha Turnpike portage route through West Virginia is today...
in 1972 due to lack of funding. Fort Duquesne Bridge (built 1963), a road bridge over the AlleghenyRiver in Pittsburgh, Pennsylvania, which ended mid-air...
route is in Allegheny County. Pennsylvania Route 48 Truck (PA 48 Truck) is a truck route of PA 48 that bypasses a weight-restricted bridge over a branch...
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I-76 / Penna Turnpike