I-99/US 220 Construction: Harrison Road Interchange
March 24, 2002 Photos by Timothy Reichard
Harrison Road provides access between PA 26 and PA 144 in Pleasant Gap,
PA 144 in Axemann, and Bellefonte. The Harrison Road interchange is a
half-diamond partial interchange, allowing access from I-99/US 220 northbound
to Harrison Road and from Harrison Road to I-99/US 220 southbound. There
is insufficient room to place two diamond ramps on the northeast side
of the interchange because of the close proximity of the PA 26 interchange
less than a mile to the northeast.
The mainline I-99/US 220 expressway can be seen from atop a hill near
the Harrison Road interchange. In the center and toward the left of the
photo, big green signs advertise the PA 150 interchange to the southwest.
Toward the right, backs of big green Harrison Road and PA 26 signs are
mounted on an overheard gantry and along the side of the road.
The offramp to Harrison Road can also be seen from the hilltop.
Harrison Road westbound descends a hill while crossing I-99/US 220. The
one-way arrows at the left are posted along the end of the offramp from
I-99/US 220 northbound.
Further ahead, past the offramp, the bridge over I-99/US 220 begins.
The bridge is state-maintained because it serves as an overpass to an
interstate highway. The bridge has two little white signs mounted on it,
showing the designation as SR 3047.
On the back of the little white sign is another little white sign, indicating
the end of the state route. A similar pair of co-mounted little white
signs are mounted on the other end of the end of the bridge. The offramp
ends just past the "no right turn" sign.
On the west end of the bridge, Harrison Road ascends a fairly steep but
short hill to reach the overpass.
Back on the east end of the bridge, the offramp curves away from the
mainline and up the hill to meet Harrison Road.
Jumping back to the west end of the bridge, the onramp leaves Harrison
Road and joins the interstate southbound.
Here is a view of the Harrison Road two-span overpass over mainline I-99/US
Facing southwestward from the overpass, one can see the interstate lanes
and median, complete with inner guard rail on the northbound lanes.
Here is another view of the highway from the center of the overpass,
In the distance is the overhead gantry with signs for the Harrison Road
and PA 26 exits over the northbound lanes. Further in the distance, on
the right side of the highway, are big green signs for the PA 150 exit,
the same signs seen in the first photo above.
Turning around and facing northeastward on the overpass, the expressway
curves back to the north to meet PA 26 at the new high-speed interchange.