page_title: Interstate 376
section_title: 2009 extensions
hierarchical_section_title: Interstate 376 / History / 2009 extensions
caption_attribution_description: One of many signs stating that PA 60 will soon become part of I-376. Took the image myself. Jgera5 19:36, 12 May 2006 (UTC)
context_page_description: Interstate 376 is a major auxiliary route of the Interstate Highway System in the U.S. state of Pennsylvania, located within the Allegheny Plateau. It runs from I-80 near Sharon south and east to a junction with the Pennsylvania Turnpike in Monroeville, after having crossed the Turnpike at an interchange earlier in its route. The route serves Pittsburgh, Pennsylvania and its surrounding areas, and is the main access road to Pittsburgh International Airport. Portions of the route are known as the Beaver Valley Expressway, Southern Expressway, and Airport Parkway. Within Allegheny County, the route runs along the majority of the Penn-Lincoln Parkway, known locally as Parkway West and Parkway East. It is currently the ninth-longest auxiliary Interstate route in the system, and second only to I-476 within Pennsylvania.
  I-376 is signed east–west despite running north–south for nearly three-quarters of its length; however, it does run east–west through the majority of Allegheny County. This is because until 2009, the route's western terminus was at Interstate 279 in Downtown Pittsburgh; it was extended west and north to I-80 to give the corridor a single route designation.
context_section_description: As part of the Safe, Accountable, Flexible, Efficient Transportation Equity Act: A Legacy for Users in 2005, the U.S. Congress had designated an expansion of I-376 past I-79 and along present day US 22/US 30 and PA 60 through the Pittsburgh International Airport and north to I-80 near Sharon, Pennsylvania.  This was done because the airport was one of the few major airports in the United States without direct access to an Interstate highway.
  This routing required some major infrastructure work on US 22 west of Downtown Pittsburgh (particularly at the US 22/US 30 cloverleaf in Robinson Township) and safety improvements to PA 60; though both were limited access freeways before the extension, they were not up to Interstate Highway standards in all areas. The improvements to both the US 22/US 30 cloverleaf in Robinson Township and the Lawrence County leg of the route, as well as replacing all of the signs with the I-376 shield, were funded by the American Recovery and Reinvestment Act of 2009.
  The designation of I-279 from Downtown west through the Fort Pitt Tunnel to I-79 was officially dropped and replaced by that of I-376 on June 10, 2009. I-279 still exists between I-376 in the Golden Triangle and I-79 in Franklin Park.  On November 6, 2009, officials announced the initial transition was complete.
  On January 21, 2010, the remainder of the route except for the Beaver Valley Expressway started receiving the I-376 signs. The stretch of PA 60 from I-80 in Shenango Township of Mercer County north past PA 18 (where the freeway terminates and the highway reverts to being a two lane arterial) to the former northern terminus of PA 60 in Sharon became PA 760.
  On August 1, 2010, signage along Turnpike 60 was officially changed to I-376, and unlike other tolled highways with Interstate designation it is not grandfathered from Interstate standards. Having been built in the early 1990s, this section was already up to Interstate standards. This section of I-376 is signed as "Toll I-376", with a black-on-yellow "Toll" sign above the I-376 trailblazer.  This makes I-376 one of the first tolled Interstates with such a marker, which was a new addition to the 2009 edition of the Manual on Uniform Traffic Control Devices.
  Despite PennDOT giving motorists over four years of advance notice on the I-376 extension, some local drivers were confused after the transition was complete, thinking that the I-376 extension was going to be an all-new highway instead of a renaming of PA 60.
  As part of the ongoing upgrades to I-376 to bring the legacy portion of the former PA 60 up to Interstate standards, the interchange with PA 318 at exit 1C was upgraded to a full service interchange in October 2014. Previously, the exit only had a westbound entrance and eastbound exit, mainly to serve as access to I-80 to West Middlesex residents. It marked the third partial interchange on the legacy PA 60/Parkway West to be upgraded to a full-service interchange in a decade, after I-79 at exit 64A and access to US 30 at exit 52 were upgraded from a partial to full-service interchanges.
caption: Signs reading "Future I-376 Corridor" were posted along PA 60 from late April 2006 until 2010. This one was located on the New Castle Bypass.
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