Dunlap's Creek Bridge
An integral part of the National Road, this was the first metal arch bridge in the United States, built 1836-39. Replacing several earlier bridges on this site, including an 1809 Finley suspension bridge, this 80-foot span was built of cast iron by the U.S. Army Corps of Engineers. Capt. Richard Delafield and Lieutenant George W. Cass oversaw construction.
David Rumsey Map Collection, Stanford LibrariesDavid Rumsey Map Collection, Stanford LibrariesDavid Rumsey Map Collection, Stanford LibrariesDavid Rumsey Map Collection, Stanford LibrariesDavid Rumsey Map Collection, Stanford Libraries
Marker data: Pennsylvania Historical and Museum Commission via data.pa.gov
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