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Appalachian Thruway Multiplexes

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Construction photos

 

I-99(N-S)/US 220(N-S) Duplex

99 220

I-99 and US 220 form a 52 mile duplex from north of Bedford to south of Bald Eagle in Bedford and Blair Counties. The duplex will be extended to Williamsport, ultimately resulting in a 135 mile multiplex, surpassing I-70/I-76's record multiplex length in PA of 89 miles by 50%. The multiplex will include 12 miles of an I-99/US 220/US 322 triplex near State College, 5 miles of an I-99/US 220/PA 26 triplex east of Bellefonte, 17 miles of an I-80/I-99/US 220 triplex, and 2 miles of an I-99/US 220/PA 44 triplex near Jersey Shore.
See also a large photo gallery of I-99/US 220 construction pictures from the State College area.


Timothy Reichard 4/7/02

Interstates technically should remain entire on freeways, but I-99 is still not complete (though there are plans to complete it). At its northern stub end near Bald Eagle, half of the PA 350 interchange was built: one ramp to carry traffic onto the freeway and one ramp to take traffic off the freeway. The I-99 designation follows US 220 off the north end of the freeway, and the first road the duplex meets is PA 350 here. This is the view of the northern end of I-99 along PA 350 northbound. I-99 begins to the left, while the US 220/PA 350 duplex begins to the right.

 


Timothy Reichard 4/7/02

Here is a closer view of the northern terminus of I-99 and southern split of US 220/PA 350.

 

 

 


Timothy Reichard 4/7/02

Just north of the end of I-99, but heading south along US 220/PA 350, one of many I-99 shields is posted, along with signs showing the US 220/PA 350 southern split.

 


Timothy Reichard 4/7/02

Here is the left turn where PA 350 splits from US 220 and I-99 begins straight ahead. The two-lane road becomes an onramp to the I-99/US 220 expressway, which begins at the interchange. The stub end will connect to the I-99/US 220 extension to Port Matilda and points northeast once construction begins in late 2002.

I-99 is also well signed from the intersection of US 220, PA 350, and Business US 220's northern terminus. See the US 220/PA 350 page for photos of this site.

 


Timothy Reichard 4/7/02

Just ahead, the first reassurance shields for I-99/US 220 are posted below a huge-font mileage sign. Here I-99/US 220 is a two-lane road leading to the expressway.

 


Timothy Reichard 4/7/02

Here are the first reassurance shields on the expressway.

 


Timothy Reichard 4/7/02

One of the first I-99 freeway segments to be built bypassed Tyrone to the south. At that time, in the 1970s, the bypass was designated US 220 only, and the old US 220 through Tyrone no longer had a number. In the 1990s when more of the freeway was completed to the south, the whole freeway became I-99/US 220, and Altoona's Business US 220 was extended north through Tyrone on old US 220's previous routing. For more info and pictures, see the Business US 220/PA 453 multiplex page.

 


Timothy Reichard 12/22/02

Far to the south, near Bedford, heading west on I-70/I-76/Pennsylvania Turnpike. This is the Bedford exit, which connects to what used to be US 220, now Business US 220. There is no direct connection now to the new US 220, which is I-99/US 220. The I-99/US 220 & I-70/I-76 interchange markes the southern end of both I-99 and the I-99/US 220 duplex. The south end of the US 220 freeway narrows to a super-2 expressway, bypassing Bedford.

 


Timothy Reichard 12/22/02

Exiting off the Turnpike, you end up here at Business US 220. Follow Busienss US 220 north through the duplex with PA 56 and then you can reach I-99/US 220.

 


Timothy Reichard 12/22/02

Northbound on the US 220 bypass of Bedford. I-99 and the I-99/US 220 duplex begin here at the interchange with the Turnpike. This photo was taken in 2002.

 


Timothy Reichard 11/5/04

In 2004, PennDOT upgraded many of the sign assemblies along the interstate, often converting roadside guide signs into overhead guide signs. These new overhead signs were installed at the same location as the previous photo, at the southern beginning of I-99.

 


Timothy Reichard 11/5/04

I-99 begins at its Exit 1, and the first reassurance shield for I-99 is posted here.

 


Timothy Reichard 11/5/04

Two miles to the north, PA 56 crosses the duplex at Exit 3. Business US 220 should connect to US 220 here, but instead, it does not venture off the old US 220 route.

 


Timothy Reichard 11/5/04

The next exit, Exit 7, serves PA 869, a road connecting Johnstown to the interstate.

 


Timothy Reichard 11/5/04

The next two exits serve Blue Knob State Park to the west. Exit 10 serves Sarah Furnace Road to the west.

 


Timothy Reichard 11/5/04

The Altoona segment of Business US 220 was extended south to Exit 15 in 2004, but by November 2004, no signs had appeared for the route. Exit 15 connects to the paralleling business route and serves Claysburg to the north.

 


Timothy Reichard 11/5/04

The following exit, Exit 23, also connects to the newly extended business route without mention. PA 164 forms a duplex with Business US 220 at this exit, and the trumpet interchange with I-99/US 220 connects directly to its northern split and then to PA 36/PA 164.

 

 

Local Names

North
220

Appalachain Thruway
Tyrone Pike

Duplex
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Appalachain Thruway
Bud Shuster Highway

South
220

Appalachain Thruway

 

Terraserver Imagery

 

Former Designations

220

1970–1976

US 220 was relocated to the freeway near Bedford between Exits 1–3.
220

1976–1980

US 220 was relocated to the freeway near Tyrone between Exits 45–51.
220

1980–1985

US 220 was relocated to the freeway north of Bedford between Exits 3–15.
220

1985–1987

US 220 was relocated to the freeway around Duncansville and Altoona between Exits 28–33.
220

1988–1989

US 220 was relocated to the freeway around Newry between Exits 23–28.
220

1989–1995

US 220 was relocated to the freeway south of Newry between Exits 15–23.
220

1995–1996

US 220 was relocated to the freeway north of Altoona between Exits 33–45.
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1996–2007?

I-99 was added to US 220.
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2007?–

I-99 will be extended northward along US 220 to I-80, including triplexes I-99/US 220/US 322 and I-99/US 220/PA 26..

 

Adjacent Multiplexes

220
350

North to Bald Eagle

220
144

South to Wolfe Mill, MD

 

 

 

 
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