Interstate 376

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Interstate 376 Auxiliary route of the Interstate Highway System
Maintained by PennDOT
Length:	80.6 mi[1] (129.71 km)
Formed:	1972, extended 2009
West end:	I-80 near Hermitage
Major junctions:	US 422 in New Castle, PA I-76 / Penna. Tpk. in Big Beaver PA 576 near Pittsburgh International Airport I-79 near Pittsburgh US 30 in Wilkinsburg I-579 in Pittsburgh I-279 in Pittsburgh
East end:	I-76/PA Turnpike/US 22/BUS US 22 in Monroeville
Pennsylvania State Routes < PA 374 PA 378 > Minor - Legislative

I-376 westbound from the Smithfield bridge, downtown Pittsburgh.

Interstate 376 (I-376) is an auxiliary route of the Interstate Highway System in the U.S. state of Pennsylvania. As of November 6, 2009, it runs from Interstate 80 near Sharon southeast to a junction with the Pennsylvania Turnpike (Interstate 76) in Monroeville. The route is signed east-west despite running north-south a good portion of its length, though it does run east-west through Allegheny County, as a remnant of when I-376 only ran from Downtown Pittsburgh to Monroeville.

I-376 forms the both halves of the Penn-Lincoln Parkway, known as the Parkway East and the Parkway West. The Parkway West runs west from downtown Pittsburgh to Imperial; it is part of the recent extension of I-376. (The Parkway — and US 22/US 30 - actually takes an exit from the highway near Pittsburgh International Airport, while I-376 continues straight.) The Parkway is named Penn-Lincoln as it was built as a bypass for the William Penn Highway (U.S. Route 22) and Lincoln Highway (U.S. Route 30). It now carries both routes from Imperial east to Wilkinsburg, where US 30 splits to the southeast while US 22 stays on the Parkway to its end in Monroeville.

I-376, within Allegheny County, varies from four to eight lanes for much of its length. However, it is only four lanes (two in each direction) through both the Squirrel Hill Tunnel and Fort Pitt Tunnel, which is a major cause of congestion. The four lanes of westbound traffic on the Fort Pitt Bridge must quickly converge into the left two lanes in order to continue through the Tunnel, leading to daily traffic jams on both the Parkway itself and connecting downtown surface streets. A planned extension of the Pennsylvania Turnpike, the Mon/Fayette Expressway (Turnpike 43), is being designed with an east and west northern terminus that will allow traffic to bypass the Squirrel Hill Tunnel once the highway is completed.

A 16-mile stretch, from Exit 31 in Chippewa Township where I-376 intersects with Pennsylvania Route 51 to Exit 15 in Taylor Township just outside of New Castle where I-376 merges onto U.S. Route 422, is tolled & maintained by the Pennsylvania Turnpike Commission, while the remainder of the highway is maintained by PennDOT.

Route description

I-376 branches from I-76 near Monroeville; this view is looking westbound along Pennsylvania Turnpike/I-76.

This section requires expansion.

History

Parkway East

The Parkway East opened June 5, 1953 from PA Route 885 (Bates Street) near the Hot Metal Bridge east through the Squirrel Hill Tunnel to U.S. Route 22 Business (then US 22) at Churchill. In late 1956, it opened from the Boulevard of the Allies (then US 22/US 30) near the Birmingham Bridge east to Bates Street, with the eastbound lanes opening September 10 and westbound opening September 29. The other downtown sections opened in 1958 and 1959, and the extension east to the Pennsylvania Turnpike in Monroeville opened October 27, 1962.^[2]

The Parkway East has had the following numbers:

• 1950s-present: US 22 (whole route) and US 30 (west of Wilkinsburg)
• 1950s-1961: PA Route 80 (east of Wilkinsburg)
• 1959-1964: I-70
• 1964-1972: I-76
• 1972-present: I-376

I-376 eastbound in downtown Pittsburgh.

Parkway West

The first section of the Parkway West opened October 15, 1953, running from PA Route 60 (Steubenville Pike, then US 22/US 30) near Pittsburgh International Airport east to Saw Mill Run Boulevard (PA Route 51 and US 19). At Steubenville Pike, it connected to PA Route 60 - the Airport Parkway - which had been built ca. 1950^[3] as a high-speed surface road to provide access to the airport. The Fort Pitt Bridge opened June 19, 1959, and the Fort Pitt Tunnels completed the route on September 1, 1960. The final piece, from PA 60 west to the US 22/US 30 split at Imperial, opened in 1964.^[4][5] Early plans for that section would have instead taken it from PA 60 where it splits with PA Route 60 Business northwest to US 30 near Campmeeting Road at Clinton.^[6] The best-known landmark on 376 is the Fort Pitt Tunnel and Bridge due to its "surprising" view of the Pittsburgh skyline.

The Parkway West has had the following numbers:

• 1950s-present: US 22 and US 30 (whole route; used the West End Bypass (PA Route 51) and Carson Street (PA Route 837) until the tunnels opened)
• 1959-1964: I-70 (east of PA Route 50 in Carnegie^[7])
• 1963-1970: I-79 (east of Carnegie)
• 1970-1972: I-76 (east of Carnegie)
• 1972-2009: I-279 (east of Carnegie)
• 2009-Present: I-376

2009 extensions

Signs reading "Future I-376 Corridor" were posted along PA Route 60 in late April 2006. This one is posted along PA 60 southbound/U.S. 422 eastbound in New Castle, Pennsylvania, just before 60 leaves 422 to become Toll 60.

Recently the U.S. Congress has designated an expansion of I-376 past I-79 and along present day US 22/30 and Pennsylvania Route 60 through the Pittsburgh International Airport and north to Interstate 80 in Sharon, Pennsylvania [1]. This would make I-376 depart its parent highway east of Pittsburgh, cross over its parent highway at the Ellwood City exit, where PA Route 60 is part of the Pennsylvania Turnpike system, and end at another major Interstate. This routing requires some major infrastructure work on U.S. Highway 22 west of Downtown Pittsburgh (particularly at the U.S. 22/U.S. 30 cloverleaf in Robinson Township) and safety improvements to PA Route 60; though both are limited access expressways for the entire proposed extension, they are not up to Interstate Highway standards in all areas.

Although work continues, Congress had legislated Interstate signage marking the I-80 to I-79 section as "I-376" by January 1, 2009, whether the route is up to standards or not. Despite this, as of April 2009 no signs have been posted along the extension as being part of I-376, the lone exception being the local street signs in Beaver, Pennsylvania that were put up in 2005 after the extension became official after the downtown area was rebuilt pointing towards "To I-376" traveling westbound on Pennsylvania Route 68. Interstate trailblazers have been put up in all of Beaver County and points southward but are covered up with the current Route 60 signs. The former I-279 from Downtown to I-79 was officially changed on June 10, 2009.^[8][9] PennDOT expects the designation of the remainder of the route to occur by the end of Summer 2009.^[10]

On November 6, 2009, officials announced the transition was complete.^[11] The improvements to both the U.S. 22/U.S. 30 cloverleaf in Robinson Township and the Lawrence County leg of the route are being funded by the American Recovery and Reinvestment Act of 2009.^[11] The Pennsylvania Route 60 signs currently remain from Exit 31, where the route becomes tolled, up through Interstate 80, and will be replaced with I-376 signs once the improvements north of the PTC-maintained section are done.

Exit list

County	Location	#[12]		Destinations	Notes
		Old	New
Mercer	Shenango Township		1	I-80 – Youngstown, Mercer	Signed as exits 1A (west) and 1B (east)
			1C	PA 318 – West Middlesex	Eastbound exit and westbound entrance
			2	PA 18 (Sharon Road) – West Middlesex
Lawrence	Pulaski Township	25	5	PA 208 – New Wilmington, Pulaski
	Neshannock Township	24	9	To PA 18 / Mitchell Road
			12	US 422 west / Sampson Street (US 422 Bus. east) – Youngstown	West end of US 422 overlap; signed as exits 12A (west) and 12B (east) eastbound
	Union Township
			13	US 224 (State Street) – Poland	Signed as exits 13A (west) and 13B (east) westbound
		45	15	US 422 east – Butler	East end of US 422 overlap; former exit 20
	North Beaver Township	43	17	PA 108 – Mt. Jackson	Former exit 19
		40	20	PA 168 – Moravia	Former exit 18
Beaver	Big Beaver	33	26	I-76 / Penna. Tpk. / PA 351 – Ohio, Harrisburg	Former exit 17
		31	29	PA 551 to PA 18 – Beaver Falls	Former exit 16
	Chippewa Township	29/15	31	PA 51 – Chippewa
	Brighton Township	14	36	Brighton
	Vanport Township	13	38	PA 68 – Beaver, Midland	Signed as exits 38A (west) and 38B (east) westbound
	Potter Township	12	39	PA 18 – Monaca, Shippingport
	Center Township	11	42	Center
	Hopewell Township	10	45	Aliquippa
		9	48	PA 151 – Hopewell
Allegheny	Findlay Township	8	50	I-376 Bus. east – Moon	Eastbound exit and westbound entrance
		8	51	I-376 Bus. east / Flaugherty Run Road – Moon	Westbound exit and eastbound entrance
		7	52	To US 30 – Clinton
		6	53	PA 576 east to US 22 – Pittsburgh International Airport
		4	56	McClaren Road
	Moon Township	3	57	I-376 Bus. west (Orange Belt ) – Moon	West end of Orange Belt overlap
		2	58	Montour Run Road
	North Fayette Township	1	59	Robinson Town Centre Boulevard
	Robinson Township		60A	US 22 west / US 30 west (Orange Belt ) – Weirton	West end of US 22/US 30 Overlap. East end of Orange Belt overlap
			60B	PA 60 south – Crafton
			61	Ridge Road
			62	Campbells Run Road	Westbound exit and eastbound entrance
	Collier Township
		1A	64A	I-79 – Erie, Washington
	Rosslyn Farms	1B	64B	Rosslyn Farms	Westbound exit and eastbound entrance
	Carnegie			Buses only (West Busway)	Eastbound exit and westbound entrance
		2	65	PA 50 west – Carnegie, Heidelberg
	Green Tree	4A	67	PA 121 – Green Tree, Mount Lebanon, Crafton
	Pittsburgh	4B	68	Parkway Center Drive	Westbound exit and eastbound entrance
		5A	69A	US 19 south (Banksville Road)	West end of US 19/US 19 Truck overlap; eastbound exit is via exit 69C
		5B	69B	US 19 Truck south / PA 51 south – Uniontown	Westbound exit is via exit 69A
		5C	69C	US 19 north / PA 51 north – West End	East end of US 19 overlap; eastbound exit and westbound entrance
		Fort Pitt Tunnel under Mount Washington
		5C	69C	PA 837 to PA 51 – West End	Westbound exit and eastbound entrance
		Fort Pitt Bridge over the Monongahela River
		6B	70A	Boulevard of the Allies, Liberty Avenue – Mellon Arena	Eastbound exit and westbound entrance
		6C	70B	Fort Duquesne Boulevard – Convention Center, Strip District	Eastbound exit and westbound entrance
		1A	70C	I-279 north (US 19 Truck north) – Fort Duquesne Bridge, North Shore	East end of US 19 Truck overlap
		1B	70D	Stanwix Street	No exit number eastbound (access from I-279 south only); originally exit 1[13]
		1C	71A	Grant Street
		1D	71B	Second Avenue	Westbound exit only
		2A	72A	Forbes Avenue – Oakland	Eastbound exit and westbound entrance
		2B	72B	To I-579 / Boulevard of the Allies (PA 885 north) – Liberty Bridge	Westbound exit and eastbound entrance
		3	73	PA 885 – Oakland, Glenwood	Westbound exit and eastbound entrance; signed as exits 73A (south) and 73B (north)
		5	74	Squirrel Hill, Homestead (Blue Belt )
		Squirrel Hill Tunnel under Squirrel Hill
	Swissvale Edgewood	7	77	Edgewood, Swissvale
	Wilkinsburg	8A	78A	US 30 east – Forest Hills	East end of US 30 overlap; no westbound exit
		8B	78B	PA 8 north – Wilkinsburg
	Churchill	9	79A	Greensburg Pike	Eastbound exit and westbound entrance
		10A	79B	PA 130 – Churchill
		10B	80	US 22 Bus. east – Monroeville	Eastbound exit and westbound entrance
	Penn Hills	11	81	PA 791 north (Yellow Belt ) – Penn Hills	Eastbound exit and westbound entrance
	Monroeville	14A	84A	PA 48 south (Orange Belt ) – Monroeville	Eastbound exit and westbound entrance
		14B	84B	Plum (Orange Belt )	Eastbound exit and westbound entrance
		16		US 22 Bus. west – Monroeville	Westbound exit and eastbound entrance
		17[13]		US 22 east – Murrysville
		15	85	I-76 / Penna. Tpk.	Eastbound exit and westbound entrance

Interstate 376 Business

Interstate 376 Business Loop
Location	Moon Township, Pennsylvania
Commissioned	2009-present

Interstate 376 Business is a short Interstate business loop in Moon Township, Pennsylvania. Its western terminus is at I-376 and Flaugherty Run Road (Exits 50 and 51) north of Pittsburgh International Airport. Its eastern terminus is at I-376 at Exit 57, south of the airport. The road was formerly known as Pennsylvania Route 60 Business.

References

External links

Wikimedia Commons has media related to: Interstate 376

• http://www.pahighways.com/interstates/I376.html
• http://www.kurumi.com/roads/3di/ix76.html#376pa

v • d • e Auxiliary routes of Interstate 76 Pennsylvania: 176 • 276 • 376 • 476 • 576 (future) • 676 • 876 (former) — New Jersey: 676

v • d • e Pennsylvania Turnpike Commission Completed highways Mainline Turnpike • Northeast Extension • James E. Ross Highway • Amos K. Hutchinson Bypass (Turnpike 66) Partially-completed highways Mon/Fayette Expressway (Turnpike 43) • Southern Beltway (Turnpike 576) Tunnels Allegheny Mountain Tunnel • Blue Mountain Tunnel • Kittatinny Mountain Tunnel • Lehigh Tunnel • Tuscarora Mountain Tunnel Aborted expansion plans Chester Extension • Erie Extension • Gettysburg Extension • Keystone Shortway • Northwest & Southwest Extension • Philadelphia Loop Extension • Scranton Extension Historical Abandoned Pennsylvania Turnpike • Laurel Hill Tunnel • Negro Mountain Tunnel • Quemahoning Tunnel • Rays Hill Tunnel • Sideling Hill Tunnel • South Pennsylvania Railroad Tolling systems E-ZPass

v • d • e Road transportation infrastructure of the metro Pittsburgh area Interstates I-76 · I-376 · I-579 · I-279 · I-79  · I-70 U.S. Routes US 19 · US 19 Truck · US 22 · US 30 Pennsylvania State Routes PA 8 · PA 18 · PA 28 · PA 43 · PA 48 · PA 50 · PA 51 · PA 60 · PA 65 · PA 66 · PA 68 · PA 88 · PA 121 · PA 130 · PA 136 · PA 148 · PA 151 · PA 201 · PA 286 · PA 366 · PA 380 · PA 481 · PA 576 · PA 780 · PA 791 · PA 837 · PA 885 · PA 910 · PA 980 · PA 981 Named roads/streets Becks Run Road · Boulevard of the Allies · Brownsville Road · Canton Avenue · Carson Street · Centre Avenue · Curry Hollow Road · Fifth Avenue · Forbes Avenue · Fort Pitt Boulevard · Lebanon Church Road · Liberty Avenue · Penn Avenue · Pennsylvania Turnpike · Saw Mill Run Boulevard · Stanwix Street · Walnut Street Bridges 16th Street Bridge · 30th Street Bridge · 31st Street Bridge · 40th Street Bridge · 62nd Street Bridge · Birmingham Bridge · Fort Duquesne Bridge · Fort Pitt Bridge · George Westinghouse Bridge · Glenwood Bridge · Highland Park Bridge · Homestead Grays Bridge · Hot Metal Bridge · Liberty Bridge · McKees Rocks Bridge · Panther Hollow Bridge · Schenley Bridge · Smithfield Street Bridge · South Tenth Street Bridge · Three Sisters (Roberto Clemente Bridge, Andy Warhol Bridge, Rachel Carson Bridge) · Veterans Bridge · West End Bridge Tunnels Armstrong Tunnel · Fort Pitt Tunnel · Liberty Tunnel · Squirrel Hill Tunnel · Wabash Tunnel Belt System     Blue Belt ·     Green Belt ·     Orange Belt ·     Purple Belt ·     Red Belt ·     Yellow Belt