Traffic just to the west of this interchange used the two-lane Exchange Bridge and Memorial Tunnel. The former Memorial Tunnel was used for storage until the mids, when it became a testing center for tunnel-fire suppression for Boston’s Big Dig project.
There were terrible accidents along this stretch and lengthy delays as trucks negotiated the major grades. Although the exchange terminus was at a large city, it connected to no other interstates or free-flowing roads.
The tunnel is still being used today by the National Response Center for military and other testing uses. Initially, the road used a ticket-based tolling system. The study recommended that the northern terminus bitcoin moved to Fairplain just outside Ripley and that the southern terminus remain in Princeton. Ten million cubic yards of earth were removed turnpike used as fill with drainage tiles for Paint Creek.
Most important of these was that the first portion of the Pennsylvania Turnpike had largely followed and utilized a costly earlier rail project which had never been completed. Originally, Tommy Graley of Standard and his two daughters were picked to be in the last vehicle to pass through the tunnel, but his pickup truck was followed by a car carrying Turnpike officials and the state trooper. Also, a segment from the southern terminus of the Turnpike at milepost 8.
Work on Interstate 79 extended south bitcoin Pennsylvania through Morgantown and Clarksburg to Charleston. A rest area is now provided at milepost 69 for southbound motorists, and a scenic overlook turnpike the Bluestone River also serves southbound motorists..