Baltimore Beltway in 1961. In 1969, Moravia Road was extended east to US 40 using the connector between US 40 and the thruway and several ramps were added to that road's interchanges with US 40 and the thruway. In addition, flyover ramps were constructed at the city limits for I-95 to diverge from the John F. Kennedy Memorial Highway onto its own path through east Baltimore in 1970. The Harbor Tunnel Thruway was extended at its south end in 1973 to connect with I-95 shortly after that Interstate was completed between the Capital Beltway and the Baltimore Beltway in 1971. Since I-95 had not yet been completed through Baltimore, the Harbor Tunnel Thruway, which was designated I-895 in 1979, was the main route for traffic passing through Baltimore. As a result, the highway was very congested, and travel through Baltimore had once again become a bottleneck. Relief came with the completion of the eight-lane Fort McHenry Tunnel on I-95 on November 23, 1985. With most traffic diverted to the new tunnel, major reconstruction work began on the Baltimore Harbor Tunnel. Traffic was reduced to one lane in each direction through the tunnel as each of the two tubes was renovated between 1987 and 1989. More recent changes include the elimination of the entrance ramp from Ponca Street at exit 10, the expansion of exit 12 to a full interchange to provide access to Johns Hopkins Bayview Medical Center in both directions (thus shortening the toll portion of I-895), and the reconstruction of the northern interchange with I-95 in 2009 so I-895 enters and exits I-95 on the right side of the roadway; previously, I-95 exited itself southbound by forcing traffic to weave to the right and access a flyover ramp, and northbound I-895 merged with I-95 from the left. The Canton Viaduct, a elevated structure carrying I-895 over a railroad yard, Ponca Street and the ramps connecting I-95 to Keith Avenue, was replaced in the late 2010s and early 2020s. The project was announced in 2014. The viaduct, next to the toll plaza for the Fort McHenry Tunnel, was one of the oldest Interstate bridges in Maryland. Similar to what was done in the late 1980s rehabilitation of the tunnel, one side of the viaduct was closed while the other operated with one lane in each direction. Construction started in 2018 and was expected to be completed in 2021. Tolls