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The design principle behind the Burr arch truss is that the arch should be capable of bearing the entire load on the bridge while the truss keeps the bridge rigid. Even though the kingpost truss alone is capable of bearing a load, this was done because it is impossible to evenly balance a dynamic load crossing the bridge between the two parts. [5]
Theodore Burr (August 16, 1771 – November 22, 1822) was an inventor from Torrington, Connecticut, who was credited with the Burr Arch Truss bridge design. He designed and built one of the first bridges across the Hudson River and several bridges that crossed the Susquehanna River .
The bridge design used his Burr arch truss. "This ultimate achievement of Burr's on the Susquehanna, having in all eighteen 200-foot trussed arch wooden spans, eight between the west shore and a first island, two between that and a second island, and eight more between that and the east shore, and a total length of 4,170 feet, was to be ...
West Union Bridge: Bypassed Burr truss: 1876 2002 CR 525 W (Tow Path Road) (former) Sugar Creek: Reserve Township: Parke: IN-106: Forsythe Bridge: Extant Burr truss: 1888 2002 CR 650 S Big Flat Rock River: Orange Township: Rush
Morgan Bridge: Extant Queen post truss 1886 2004 Morgan Bridge Road Lamoille River north branch Belvidere: Lamoille: VT-34: Village Bridge: Extant Burr truss: 1833 2004 Bridge Street Mad River: Fayston: Washington
Pages in category "Burr Truss bridges in the United States" The following 200 pages are in this category, out of approximately 235 total. This list may not reflect recent changes .
The majority, 54, are Burr Arch truss designs, while the next most common truss style is a Howe truss with 23. One each of the older style King Post and Queen Post are located in the western part of the state; Philips Bridge , west of Rockville in Parke County and Irishman Bridge , south of Terre Haute in Vigo County, respectively. [ 2 ]
The Bedell Bridge was a Burr truss covered bridge that spanned the Connecticut River between Newbury, Vermont and Haverhill, New Hampshire. Until its most recent destruction in 1979, it was, with a total length of 382 feet (116 m), the second-longest covered bridge in the United States .