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Burr, Theodore

The original wooden Union Bridge
Society: ASCEMain Category: Civil9 126th StTroyState: NYWebsite: http://www.asce.org/project/waterford-(union)-bridge-(replaced-in-1909)/Creator: Burr, Theodore

The Union Bridge was built in 1804 by Theodore Burr and was the first to cross the lower section of the Hudson River connecting Waterford and Lansingburg, New York. The wooden bridge's key feature was the arch that started below the deck at the abutments and ran near the top of the top chord at mid span. This was the first time in the United States that anyone had used an arch in combination with a truss in order to provide both stiffness and strength. Burr later patented his truss/arch pattern in 1806 and 1817.

Image Caption: The original wooden Union Bridge before it burned down 1909
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