Many of the National Road's original stone arch bridges also remain on former alignments. Notable among these is the Casselman River Bridge near Grantsville, Maryland; built in 1813-1814, it was the longest single-span stone arch bridge in the world at the time.
The Wheeling Suspension Bridge across the Ohio River, opened in 1849, is the oldest vehicular suspension bridge in the United States still in use. A newer bridge carries I-70 and the realigned U.S. 40 across the river nearby. The original bridge is listed as both a National Historic Landmark and Historic Civil Engineering Landmark.
One of the road's original toll houses is preserved in La Vale, Maryland, and two others are located in Addison, Pennsylvania, and near Uniontown, Pennsylvania.
Various sections of brick pavement, built in the early twentieth century, are still in use on little-traveled alignments, particularly in eastern Ohio.
Other articles related to "historical structures, structures":
... Along the Lester River, in the Lakeside–Lester Park neighborhood, are two structures listed on the National Register of Historic Places ...
... Among structures considered historically significant are Sacred Heart Parish Church (built 1837-1843 in neo-Baroque style) Active Cemetery (chapel, gate, and wrought-iron crosses ...
Famous quotes containing the words structures and/or historical:
“It is clear that all verbal structures with meaning are verbal imitations of that elusive psychological and physiological process known as thought, a process stumbling through emotional entanglements, sudden irrational convictions, involuntary gleams of insight, rationalized prejudices, and blocks of panic and inertia, finally to reach a completely incommunicable intuition.”
—Northrop Frye (b. 1912)
“The analogy between the mind and a computer fails for many reasons. The brain is constructed by principles that assure diversity and degeneracy. Unlike a computer, it has no replicative memory. It is historical and value driven. It forms categories by internal criteria and by constraints acting at many scales, not by means of a syntactically constructed program. The world with which the brain interacts is not unequivocally made up of classical categories.”
—Gerald M. Edelman (b. 1928)