Interstate 376

Interstate 376 (I-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 (I-76, its parent) 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 (PIT).[3] Portions of the route are known as the Beaver Valley Expressway, Southern Expressway, and Airport Parkway.[4] 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.

"Penn-Lincoln Parkway" redirects here. For Parkway North, see Interstate 279. For the westernmost 3.9 miles (6.3 km) of Parkway West, see U.S. Route 22 in Pennsylvania and U.S. Route 30 in Pennsylvania.
"Beaver Valley Expressway" redirects here. For the easternmost 3.5 miles (5.6 km) of the road, see Interstate 376 Business.

Interstate 376
I-376 highlighted in red
Route information
Auxiliary route of I-76
Maintained by PennDOT and PTC
Length84.43 mi[1] (135.87 km)
ExistedOctober 2, 1972[2]–present
HistoryExtended 2009
Component
highways
Major junctions
West end I-80 / PA 760 near Hermitage
 
East end
I-76 / Penna Turnpike / US 22 in Monroeville
Location
CountiesMercer, Lawrence, Beaver, Allegheny
Highway system
← PA 374PA 376 →

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. Despite the route's direction, it serves as a major artery through Pittsburgh's West End, with I-79 being the primary route through Pittsburgh's North Hills. Since its 2009 extension, the route has also served as a major way to access Northeast Ohio.[5]

A 16-mile (26 km) stretch of the Beaver Valley Expressway, officially named the James E. Ross Highway, from exit 15 where I-376 ends its brief concurrency with U.S. Route 422 (US 422) to exit 31 where I-376 has its first interchange with Pennsylvania Route 51 (PA 51), is tolled and is maintained by the Pennsylvania Turnpike Commission, while the remainder of the highway is maintained by PennDOT. Near the airport, I-376 also has a business loop.

Route description

Beaver Valley Expressway and Airport Parkway
Eastward along the toll section of I-376 (then PA 60) in Lawrence County's North Beaver Township.

I-376 begins at a cloverleaf interchange with I-80 and Pennsylvania Route 760 located four miles east of Ohio within the Glaciated Allegheny Plateau. From there, it travels in a southerly direction on the Beaver Valley Expressway, a four-lane freeway with a wide grass median. Paralleling PA 18, I-376 has its first interchange with that state highway in West Middlesex.

I-376 soon meets US 422 and forms an overlap with that highway along the west side of New Castle. After an interchange with US 224 in Union Township, I-376 eastbound splits from US 422 at a trumpet interchange southwest of the city in Taylor Township. At this point, I-376 becomes a tolled freeway officially named the James E. Ross Highway.

I-376 continues southward, still paralleled by PA 18 and the Beaver River to the east. Shortly after entering Beaver County near Koppel, the route connects to its parent (I-76 on the Pennsylvania Turnpike) for the first time at an interchange which also provides access to PA 351. Around this area, I-376 crosses into the Unglaciated Allegheny Plateau, where it remains for the remainder of its length.

I-376 then passes to the east of West Mayfield and becomes a non-tolled highway again at its first interchange with PA 51 in Chippewa Township, just west of Beaver Falls. The freeway then weaves through mountainous terrain, interchanging with PA 68 in Vanport just before crossing the Vanport Bridge over the Ohio River. It then has its second interchange with PA 18 near Kobuta and continues south from there. I-376 passes to the west of Aliquippa before leaving Beaver County and entering Allegheny County.

Approaching Pittsburgh International Airport (PIT), I-376 bends south-southwest and becomes the Southern Expressway, while the Beaver Valley Expressway diverges to the southeast along Business Loop 376. I-376 circles around the southern edge of the airport, intersecting the western terminus of the Southern Beltway (PA Turnpike 576) at the main entrance to PIT before recombining with Business Loop 376 and becoming the Airport Parkway, still four lanes and with a narrow median.

Parkway West
I-376 Greentree exit
For the westernmost 3.9 miles (6.3 km) of the Penn-Lincoln Parkway, see U.S. Route 22 in Pennsylvania and U.S. Route 30 in Pennsylvania.

Now traveling southeast, the route comes to a partial cloverleaf interchange with the Penn-Lincoln Parkway (US 22 and US 30) and Steubenville Pike (PA 60) in Robinson Township. The two U.S. Highways join I-376 here in a partially-unsigned concurrency (indicated only on reassurance markers), continuing east-southeastward bearing the Penn-Lincoln Parkway name, and soon reach an interchange with I-79. From that point eastward, along what was known for many years as I-279, I-376 runs east-southeast through Rosslyn Farms and Carnegie before turning northeast and passing through Green Tree.

Entering the city of Pittsburgh, I-376 winds its way northeast to its second interchange with PA 51 at Saw Mill Run Boulevard, which is also part of a spread-out series of ramps linking Banksville Road (US 19) and US 19 Truck. This junction, located just before the freeway passes under Mount Washington in the Fort Pitt Tunnel, features the infamous wrong-way concurrency of the northbound and southbound directions of US 19 Truck.

I-376 between the Fort Pitt Bridge and Fort Pitt Tunnel

After passing through the Fort Pitt Tunnel, I-376 emerges onto the four-lane double-deck Fort Pitt Bridge, crossing over the Monongahela River. There are single-lane westbound exit and eastbound entrance ramps connecting Carson Street to the freeway between the tunnel's portal and the bridge. Once across the river, the route touches down in Downtown Pittsburgh at Point State Park. An interchange at the Point connects I-376 to I-279 (Parkway North), which leads to the Fort Duquesne Bridge, as well as Liberty Avenue.

Parkway East

I-376 continues east from the Point, still carrying the partially-unsigned US 22 and US 30, following the north shore of the Monongahela River through the south side of the downtown area (the westbound area by Downtown from Grant Street to the Fort Pitt Bridge is locally known as the Bathtub).[4] The road then continues to the adjacent neighborhoods of Soho and Oakland. The Parkway East eventually turns away from the river near the southwestern corner of Schenley Park and runs along that park's southern border before passing through the Squirrel Hill Tunnel under Squirrel Hill.

I-376 approaching Downtown Pittsburgh

Parkway East exits the city of Pittsburgh near the southeastern corner of Frick Park, and US 30 leaves the freeway shortly thereafter at PA 8 in the suburb of Wilkinsburg. I-376 and US 22 (now fully signed) continue in a generally easterly direction through Churchill, Wilkins Township, Penn Hills, and finally Monroeville, where I-376 ends at an interchange with the Pennsylvania Turnpike and US 22 Business. US 22 continues east from this interchange on the William Penn Highway towards Murrysville.

I-376 at the Squirrel Hill Tunnel

Tolls

The James E. Ross Highway portion of I-376 between US 422 and PA 51 uses all-electronic tolling, with tolls payable by toll-by-plate (which uses automatic license plate recognition to take a photo of the vehicle's license plate and mail a bill to the vehicle owner) or E-ZPass. The tolled section of I-376 has two mainline toll plazas: the West Mainline Toll Plaza near milepost 18 and the East Mainline Toll Plaza near milepost 30. As of 2020, the West Mainline Toll Plaza costs $4.30 using toll-by-plate and $2.10 using E-ZPass for passenger vehicles while the East Mainline Toll Plaza costs $2.70 using toll-by-plate and $1.10 using E-ZPass for passenger vehicles. There are also ramp tolls at the eastbound exit and westbound entrance at exit 17, the westbound exit and eastbound entrance at exit 20, and the eastbound exit and westbound entrance at exit 29, which charge $2.70 using toll-by-plate and $1.10 using E-ZPass for passenger vehicles.[6] As part of Act 44, tolls are to be increased every year in January.[7][8]

The tolled portion of I-376 is the most expensive portion of the Pennsylvania Turnpike system per mile, charging toll-by-plate users an average of 44 cents/mile and E-ZPass users 20 cents/mile. This is in stark contrast to the mainline Turnpike, which charges less than 12 cents/mile for E-ZPass users and more than 17 cents/mile for cash users. This is due to the bonds on newer sections of the Turnpike system (such as the James E. Ross Highway, Amos K. Hutchinson Bypass, Mon–Fayette Expressway, and the Southern Beltway) having not been paid for yet (in the case of the latter two, are only partially completed), whereas the mainline Turnpike and the Northeastern Extension had their bonds paid for decades ago. Even with the newer sections factored in—most of which except for a portion of the Mon–Fayette Expressway from I-70 near Bentleyville to US 40 near Brownsville opened after the James E. Ross Highway opened—it is the most expensive portion of the Turnpike system per mile.[9]

Along with the Delaware River–Turnpike Toll Bridge (which is affected by the ongoing Pennsylvania Turnpike/Interstate 95 Interchange Project), the Beaver Valley Expressway became one of the first sections of the Pennsylvania Turnpike system to implement all-electronic tolling, which began along the Beaver Valley Expressway on April 30, 2017.[10][11] The Beaver Valley Expressway was selected as a test area so that the PTC could work out any bugs with mailing non-E-ZPass users bills with their unpaid tolls.[11]

History
I-376 westbound from the Smithfield Street Bridge in Downtown Pittsburgh.

The first section of what would eventually become I-376 opened June 5, 1953, from PA 885 (Bates Street) near the Hot Metal Bridge east through the Squirrel Hill Tunnel to US 22 Business (then US 22) at Churchill. Construction commenced on this stretch on July 25, 1946 near Wilkinsburg.[12] The next section to open, running from PA 60 (Steubenville Pike, then US 22/US 30) near Pittsburgh International Airport east to Saw Mill Run Boulevard (PA 51 and US 19), opened October 15, 1953. At Steubenville Pike, it connected to PA 60—the Airport Parkway—which had been built c. 1950[13] as a high-speed surface road to provide access to the airport.

In 1955, the Baltimore and Ohio Station was demolished to make way for construction of the new freeway. 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 segments from January 17, 1958 to 1959, the total cost of the parkway at this time came to $112.107 million (1959 terms).[12] The $6.305 million Fort Pitt Bridge opened June 19, 1959, followed by the $16 million Fort Pitt Tunnel on September 1, 1960, using the West End Bypass (Pennsylvania Route 51) and Carson Street (Pennsylvania Route 837) as detours until the Fort Pitt Tunnel opened. The Parkway East ended in Churchill, with eastbound traffic continuing ahead on the William Penn Highway, until the $11,124,763 extension east to the Pennsylvania Turnpike in Monroeville opened October 27, 1962.[4] The final piece of Parkway West (the part which has never had an Interstate route number), from PA 60 west to the US 22/US 30 split at Imperial, opened in 1964.[14][15] 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.[16]

The next section that opened was in 1968 from the present-day exit 2 with PA 18 to where PA 18 intersects with the present-day PA 760 just north of I-80 and the western terminus of I-376.[17][18]

Work began on the Beaver County sections of I-376 (in between Chippewa Township and the Airport Parkway) in 1971 and would finish by 1976.[17][19] The following year, the northern section finished construction, which would leave a gap between New Castle and Chippewa Township for the next 15 years. Until the middle section was completed, in order to continue on the highway, travelers had to use US 422, PA 168, PA 18, PA 251, and PA 51 before returning to the highway. Until that section opened, the present-day exit 12A marked the southern terminus of the northern section of PA 60 as an "END 60" sign was located near the exit.

In the early to mid 1980s the entire section from downtown to Monroeville was refurbished.[20]

I-376 at the former terminus with I-279

The next leg of the route opened to PA 108 in 1991 and to PA 51 in Chippewa on November 30, 1992 as the 16.5 mile $260 million "missing link" between two sections of PA 60, when that route's designation was on the highway.[21] The aforementioned "END 60" sign was removed when the first leg of the middle section opened in 1991, and a "No re-entry this exit" sign has sat on the site since, due to exit 12A being an indirect connection to US 422 westbound without a direct re-entry ramp.

The Southern Expressway, a southern bypass of Pittsburgh International Airport, opened on September 9, 1992 and is the newest portion of I-376.[22][23]

The PTC retrofitted E-ZPass lanes on the tolled section of I-376 in 2006 at both the two mainline toll plazas as well as the exits that collect tolls.[24]

A bridge crossing I-376 from Oakland to Greenfield, the Greenfield Bridge, gained some national notoriety on an episode of Last Week Tonight with John Oliver concerning infrastructure. The state could not immediately afford to replace the crumbling bridge, so instead a cover was built under the bridge to protect the vehicles on I-376. The Greenfield Bridge was finally demolished in December 2015, and a replacement was built over the following two years, officially opening on October 14, 2017.[25]

Route designations prior to 2009
The western end of I-376 in 2003.

From PA 60 to I-376's eastern terminus, I-376 has had the US 22 and US 30 designations for its entire history (US 30 exiting at Wilkinsburg). Until 1961, it also carried the PA 80 designation until that route was decommissioned due to Pennsylvania needing the designation for I-80 to the north. In 1956, Pennsylvania Route 60 was commissioned to have the Airport Parkway and the former alignment of U.S. 22 & U.S. 30 to Pittsburgh's West End.

From 1959 to 1964, I-70 occupied the highway east of PA 50 in Carnegie.[18] When I-70 moved to its current alignment (replacing I-70S) in 1964, the route received the Interstate 76 designation into Pittsburgh.[26] West of Pittsburgh, from 1963 to 1970, I-79 occupied the route. In West Middlesex, the route would receive the PA 18 designation while the former alignment would receive a business route designation as PA 18 Business, since it served as a bypass of West Middlesex.[27]

In 1970, I-79 swapped positions with I-279, necessitating that I-76 be extended to I-79. With commencement on the Beaver Valley Expressway in 1971, PA 60 was extended to its future northern terminus in Chippewa. Finally, on October 2, 1972, after I-76 west of Monroeville moved to the Pennsylvania Turnpike and replaced I-80S, the western part of the highway took the I-279 designation while the section from Pittsburgh east to Monroeville would become the first section with the I-376 designation.[2] When I-376 was extended onto the Parkway West in 2009, I-279 was truncated to its current southern terminus at the former western terminus of I-376.[28]

PA 18 Business was decommissioned in 1978 when PA 18 returned to its former alignment (where it has remained to this day) and PA 60 was extended all the way to Hermitage.[29][30]

PA Toll 60
LocationChippewa Township – New Castle
Existed1991–2009

On November 30, 1992 the 16.2 mile gap in Beaver County was completed with a toll highway.[31]

When the Beaver Valley Expressway started opening in 1991, it would receive the "PA Toll 60" designation, because it was operated by the Pennsylvania Turnpike Commission. With the opening of the Southern Expressway in 1992, PA 60 moved to that highway, while the Airport Parkway received the PA 60 Business designation. PA 60 was eventually extended to Sharon in 1997, ending at US 62 Business.[32]

2009 extensions
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.

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.[3]

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.[33]

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.[28][34] 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.[33]

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.[35]

A "Toll I-376" trailblazer on the tolled section of I-376.

On August 1, 2010, signage along Turnpike 60 was officially changed to I-376,[36] 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.[37]

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.[5]

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.[38]

Exit list
CountyLocation[39]mi[40][41]kmOld exitNew exit
[42]		DestinationsNotes
MercerShenango Township0.0000.000– PA 760 north – SharonContinuation beyond I-80
1A I-80 west – YoungstownExit 4 on I-80, western terminus of I-376, southern terminus of PA 760
1B I-80 east – Mercer
0.5460.8791C PA 318 – Mercer, West MiddlesexBecame a full interchange in October 2014.[38]
1.7342.7912 PA 18 – West Middlesex
LawrencePulaski Township5.1038.21225[lower-alpha 1]5 PA 208 – New Wilmington, Pulaski Township
Neshannock Township9.43915.19124[lower-alpha 1]9 To PA 18 / Mitchell Road
Neshannock–Union
township line		12.19919.63212
US 422 west / US 422 Bus. east (Sampson Street) – Youngstown		Western end of US 422 concurrency; signed as exits 12A (US ) and 12B (east) eastbound
Union Township13.48421.70013 US 224 (State Street) – PolandFormerly signed as Exits 13A (west) and 13B (east) westbound. After I-376 designation, Exit 13B ramp was removed and Exit 13A ramp was reconfigured for both directions.
14.60423.503
15 US 422 east – ButlerLeft exit eastbound; eastern terminus of US 422 concurrency; western terminus of Toll section
North Beaver Township16.2826.20
17 PA 108 – Mt. JacksonTolls collected at eastbound exit and westbound entrance
18.129.1Mainline West Toll Plaza 18[44]
19.9632.12
20 PA 168 – MoraviaTolls collected at eastbound entrance and westbound exit
BeaverBig Beaver25.7141.38
26 I-76 / Penna Turnpike / PA 351 – Ohio, HarrisburgExit 10 (New Castle) on Penna Turnpike
28.7946.33
29 PA 551 to PA 18 – Beaver FallsTolls collected at eastbound exit and westbound entrance
Chippewa Township30.549.1Mainline East Toll Plaza 30[44]
31.0349.94
31 PA 51 – ChippewaEastern terminus of Toll section
Brighton Township35.98257.90714[lower-alpha 1]36Brighton
Vanport Township38.20361.48213[lower-alpha 1]38 PA 68 – Beaver, MidlandSigned as Exits 38A (west) and 38B (east) westbound
Ohio River38.343–
38.677		61.707–
62.245		Vanport Bridge
Potter Township39.32863.29212[lower-alpha 1]39 PA 18 – Monaca, ShippingportAccess to Penn State Beaver Campus and Beaver Valley Mall Boulevard
Center Township41.59766.94411[lower-alpha 1]42Center
Hopewell Township44.72371.97510[lower-alpha 1]45Aliquippa
47.87777.0519[lower-alpha 1]48 PA 151 – Hopewell
AlleghenyFindlay Township50.13980.6918[lower-alpha 1]50 I‑376 Bus. east – MoonEastbound exit and westbound entrance
51.40582.7288[lower-alpha 1]51 To I‑376 Bus. east / Flaugherty Run Road – MoonWestbound exit and eastbound entrance
52.20984.0227[lower-alpha 1]52 To US 30 – Clinton
52.867–
53.627		85.081–
86.304		6[lower-alpha 1]53 PA Turnpike 576 east to US 22 – Pittsburgh International AirportExits 0 westbound/1A-B on PA 576.
56.36390.7074[lower-alpha 1]56McClaren Road
Moon Township57.185–
57.895		92.030–
93.173		3[lower-alpha 1]57 I‑376 Bus. west / Orange Belt west – MoonWestern end of Orange Belt concurrency
58.48794.1262[lower-alpha 1]58Montour Run Road
North Fayette Township59.47195.7091[lower-alpha 1]59Robinson Town Centre Boulevard
Robinson Township59.970–
60.527		96.512–
97.409		60A US 22 west / US 30 west / Orange Belt east – WeirtonEastern end of Orange Belt concurrency; western end of US 22/US 30 concurrency
60B PA 60 south / Yellow Belt – CraftonNorthern terminus of PA 60
60.86497.95161Ridge Road
Robinson–Collier
township line		61.99899.77662 Yellow Belt (Campbells Run Road)Westbound exit and eastbound entrance
Robinson Township63.268–
64.177		101.820–
103.283
64A I-79 – Washington, ErieFormer southern terminus of I-279, exit 59 on I-79
Rosslyn Farms64.481103.772
64BRosslyn FarmsWestbound exit and eastbound entrance
Carnegie64.915104.471Buses only (West Busway)Eastbound exit and westbound entrance
65.323105.127
65 PA 50 – Carnegie, HeidelbergUntil 2017, Heidelberg only appeared on westbound signs
Green Tree67.225108.188
67 PA 121 / Blue Belt – Green Tree, Mount Lebanon, CraftonEastbound signs shown as Green Tree/Mt. Lebanon, westbound signs shown as Green Tree/Crafton
Pittsburgh67.699108.951
68Parkway Center DriveWestbound exit and eastbound entrance
68.372110.034
69A US 19 south (Banksville Road) – Mt. Lebanon, UniontownWestern end of US 19 concurrency; westbound exit and eastbound entrance
68.808110.736
69B
US 19 Truck south / PA 51 south – Uniontown		Western end of US 19 Truck concurrency; eastbound exit and westbound entrance
68.883110.856
69C US 19 north / PA 51 north – West EndEastern end of US 19 concurrency; eastbound exit and westbound entrance
68.952–
69.644		110.967–
112.081		Fort Pitt Tunnel under Mount Washington
69.708112.184
69C PA 837 north to PA 51 – West EndWestbound exit and eastbound left entrance
69.644–
69.873		112.081–
112.450		Fort Pitt Bridge over the Monongahela River
69.873–
70.029		112.450–
112.701
70ABoulevard of the Allies, Liberty Avenue – PPG Paints ArenaEastbound left exit and westbound entrance
70BFort Duquesne Boulevard – Convention Center, Strip DistrictEastbound left exit and westbound entrance
70C
I-279 north / US 19 Truck north – Fort Duquesne Bridge, North Shore		Southern terminus of I-279, eastern end of US 19 Truck concurrency; left exit eastbound
70.108112.828
70DStanwix StreetNo eastbound exit; left exit and entrance westbound; left entrance eastbound
70.508113.472
71AGrant StreetLeft exit and entrance
71.036114.321
71BSecond AvenueWestbound exit only
71.962115.812
72AForbes Avenue – OaklandEastbound exit and westbound entrance
72.088116.014
72B To I-579 (Crosstown Blvd) / PA 885 north (Boulevard of the Allies) / Liberty BridgeWestbound exit and eastbound left entrance
72.742117.067
73 PA 885 (Bates Street) – Glenwood, OaklandWestbound exit and eastbound entrance; signed as Exits 73A (south) and 73B (north). Exit originally signed as Oakland/Hazelwood, changed to Oakland/Glenwood in 1981 to identify the Glenwood Bridge on PA 885 South (There is no Pittsburgh neighborhood called Glenwood)
74.371119.689
74 Blue Belt – Squirrel Hill, Homestead
74.618–
75.622		120.086–
121.702		Squirrel Hill Tunnel under Squirrel Hill
Pittsburgh–Swissvale–
Edgewood tripoint		76.554123.202
77Edgewood, Swissvale
Wilkinsburg77.868125.316
78A US 30 east – Forest HillsEastern end of US 30 concurrency; no westbound exit
77.920125.400
78B PA 8 north – WilkinsburgSouthern terminus of PA 8
Churchill78.732126.707
79AGreensburg PikeEastbound exit and westbound entrance
79.503127.948
79B PA 130 – ChurchillLeft exit westbound
79.934128.641
80
US 22 Bus. east – Monroeville		Eastbound exit and westbound entrance, western terminus of Business US 22, southern terminus of PA 791
Churchill–Wilkins Township line80.407129.403
81 PA 791 north / Yellow Belt – Penn HillsExit originally signed as Rodi Road, changed to Penn Hills in 1981.
Monroeville84.117135.373
84A PA 48 south / Orange Belt – MonroevilleEastbound exit and westbound entrance, northern terminus of PA 48
84B Orange Belt – PlumEastbound exit and westbound entrance. PA 48 North was designated on these signs until 1998 when its northern terminus was truncated to Business US 22
84.427135.87217[lower-alpha 8]– US 22 east – MurrysvilleEastern terminus of I-376 and its concurrency with US 22, eastern terminus of Business US 22
85 I-76 / Penna Turnpike – Ohio, Harrisburg
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

Business loop
Main article: Interstate 376 Business

Interstate 376 Business
LocationAllegheny County
Length6.26 mi (10.07 km)
Existed2009–present
I-376 Business shield in Moon Township, Pennsylvania

Business Loop 376 (BL-376), known locally as the Airport Parkway, is a six-mile (9.7 km) Interstate Highway business loop in Moon Township and Findlay Township, Pennsylvania. Its western terminus is at I-376 and Flaugherty Run Road (exits 50 and 51) north of Pittsburgh International Airport (PIT). Its eastern terminus is at I-376's exit 57, southeast of PIT.

Before November 6, 2009, and after the Southern Expressway was completed in 1992, this road was known as Pennsylvania Route 60 Business.[23] Prior to that, it had the regular PA 60 designation; this was also originally the last leg of the Parkway West which ended at the intersection with then-Beers School Road (now University Boulevard) and began as the Beaver Valley Expressway past the intersection.[18][45] Much of the road is up to freeway standards, but several signaled at-grade intersections remain, making this multi-lane divided road a true expressway (unlike many of Pennsylvania's freeways, which are often misleadingly named using the suffix expressway, since they are often called such in the northeast). BL-376 is one of only two business Interstate routes found in the Commonwealth of Pennsylvania, the other being the business loop of Interstate 83 in York.

gollark: Haven't we all?
gollark: Hi populace, be quelled.
gollark: No, they promised to heavpoot.
gollark: > what changes will there be now Gibson is in charge?I mean, we were going to have an election, I think?
gollark: * 10

See also

Notes
  1. Sequential exit number for PA 60 before redesignation to I-376[42]
  2. Sequential exit number for PA 60 before replacement with milepost-based exit number[43]
  3. Milepost-based exit number for PA 60 before redesignation to I-376[42]
  4. Sequential exit number for I-279 before replacement with milepost-based exit number[43]
  5. Milepost-based exit number for I-279 before redesignation to I-376[42]
  6. Sequential exit number before replacement with milepost-based exit number[43]
  7. Milepost-based exit number from former western terminus in Downtown Pittsburgh[43]
  8. Sequential exit number for I-76 before redesignation to I-376[17]

References
  1. "Interstate Highway System". May 23, 2017. Retrieved August 18, 2017.
  2. "Interstates Renumbered". The Pittsburgh Press. February 24, 1972. p. 8. Retrieved November 30, 2017 – via Newspapers.com.
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