Interstate 376
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Interstate 376 (abbreviated I-376) is an east-west U.S. interstate highway spur route that lies entirely within Allegheny County, Pennsylvania. It is the primary access route between Pittsburgh and its eastern suburbs, and is locally known as "Parkway East".
Contents |
Length
| miles | km | state | |
| 15 | 20 | Pennsylvania | |
| 15 | 20 | Total | |
The highway is about 14 miles long, terminating in downtown Pittsburgh at Interstate 279 and at Monroeville, Pennsylvania at Interstate 76 (the Pennsylvania Turnpike) and U.S. Highway 22. I-376 is connected to the southern end of Interstate 579 by the Boulevard of Allies.
I-376 is a total of six lanes for most of its length. However, it is only four lanes through the Squirrel Hill Tunnel, a major cause of congestion. A planned extension of the Pennsylvania Turnpike, the James J. Manderino Highway (PA Turnpike 43), is being designed with an east and west northern terminus that will allow traffic to bypass the tunnel once the highway is completed.
Prior to 1974, the highway was signed as Interstate 76, but was relocated onto the Pennsylvania Turnpike when the Federal Highway Administration dropped the so-called "suffixed" Interstate Highway routes (it was numbered between 1960 and 1974 as "I-80S") in the mid-1970's.
Expansion
Recently the U.S. Congress has designated an expansion of I-376 past the Downtown Pittsburgh area and along present day I-279 past the I-79 intersection and westward along Pennsylvania State Route 60 through the Pittsburgh International Airport and north to Interstate 80 in Sharon, Pennsylvania [1]. This would make I-376 the first highway to depart its parent highway east of Pittsburgh, cross over (like the proposed I-95/I-195 crossover on the New Jersey Turnpike near Trenton when the I-95/Pennsylvania Turnpike interchange is completed in 2009) its parent highway at the New Castle exit, where PA Route 60 is part of the Pennsylvania Turnpike system, and ending at another major Interstate. This routing requires some major infrasturcture work on U.S. Highway 22 west of Downtown Pittsburgh and on PA Route 60, though both are presently limited access highways they are not up to national "interstate standards".
Cities and towns along the route (from west to east)
- Pittsburgh, Pennsylvania
- Swissvale, Pennsylvania
- Edgewood, Pennsylvania
- Wilkinsburg, Pennsylvania
- Forest Hills, Pennsylvania
- Churchill, Pennsylvania
- Wilkins, Pennsylvania
- Penn Hills, Pennsylvania
- Monroeville, Pennsylvania
Interchanges from West to East
Pennsylvania
| County | Municipality | Exit | |
|---|---|---|---|
| Allegheny | Pittsburgh | 0 | Interstate 279/US 19/US 22/US 30 |
| Allegheny | Pittsburgh | 1A | Interstate 279 North/US 19 |
| Allegheny | Pittsburgh | 1B | Stanwix Street |
| Allegheny | Pittsburgh | 1C | Grant Street |
| Allegheny | Pittsburgh | 1D | Second Avenue |
| Allegheny | Pittsburgh | 2A | Forbes Avenue (eastbound only) |
| Allegheny | Pittsburgh | PA 43 Mon Faye Expressway (Proposed) | |
| Allegheny | Pittsburgh | 2B | Boulevard of the Allies |
| Allegheny | Pittsburgh | 3A | PA 885 SOUTH |
| Allegheny | Pittsburgh | 3B | PA 885 NORTH |
| Allegheny | Pittsburgh | 5 | Beechwood Blvd. |
| Allegheny | Swissvale | 7 | Braddock Avenue |
| Allegheny | Wilkinsburg | 8A | US 30 |
| Allegheny | Wilkinsburg | 8B | PA 8 |
| Allegheny | Churchill | 9 | Greensburg Pike |
| Allegheny | Churchill | 10A | PA 130 |
| Allegheny | Churchill | 10B | US 22 |
| Allegheny | Wilkins Twp. | 11 | Penn Hills |
| Allegheny | Penn Hills | I-576 Proposed | |
| Allegheny | Monroeville | 14A | PA 48 |
| Allegheny | Monroeville | 14B | Haymaker Road |
| Allegheny | Monroeville | 14C | US 22 |
| Allegheny | Monroeville | 15 | Pennsylvania Turnpike I-76 |