ASM International has designated Brownsville - Route 40 Bridge an historical landmark. This bridge, designed by and built under the supervision of Capt. Richard Delafield in 1839 to improve the "National Road", is the first cast iron bridge to be built west of the Allegheny Mountains.
15417
Society: ASMMain Category: MetalsSub Category: BridgesEra: 1830-1839DateCreated: 1839Market Street east of Bank StreetBrownsvilleState: PAZip: 15417Country: USAWebsite: https://www.hmdb.org/m.asp?m=252Creator: Delafield, Richard
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Image Credit: WikipediaImage Caption: Brownsville bridge
1988
Not only was Dunlap's Creek Bridge the first cast-iron bridge in America, it was the first metal bridge anywhere to use what its builder, Capt. Richard Delafield, U.S. Army Corps of Engineers, described as "standardized, interchangeable, manufactured parts." The bridge was built as part of the federal government's effort to make repairs on the National Road before handing authority over to the states. Dunlap's Creek at Brownsville was an especially troublesome crossing, having destroyed three previous bridges since 1801.
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Image Credit: Public Domain (National Park Service)Image Caption: Dunlap's Creek BridgeEra_date_from: 1939
1978
Innovations
Not only was Dunlap's Creek Bridge the first cast-iron bridge in America, it was the first metal bridge anywhere to use what its builder, Capt. Richard Delafield, U.S. Army Corps of Engineers, described as "standardized, interchangeable, manufactured parts." The bridge was built as part of…
ASM International has designated Brownsville - Route 40 Bridge an historical landmark. This bridge, designed by and built under the supervision of Capt. Richard Delafield in 1839 to improve the "National Road", is the first cast iron bridge to be built west of the Allegheny Mountains.
