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A Howe truss is a truss bridge consisting of chords, verticals, and diagonals whose vertical members are in tension and whose diagonal members are in compression. The Howe truss was invented by William Howe in 1840, and was widely used as a bridge in the mid to late 1800s.
In 1840, Howe was engaged to build a railroad bridge over the Connecticut River in Springfield, Massachusetts. This famous bridge was of a new, influential design—the Howe truss bridge, which Howe patented in 1840. [6] One of Howe's workmen, Amasa Stone, purchased for $40,000 [8] ($1,220,800 in 2023 dollars) in 1842 the rights to Howe's ...
A Pratt truss Gatton Railway Bridge showing the Pratt truss design Macleay River Railway Bridge, a Pratt truss design at Kempsey in NSW, Australia. A Pratt truss includes vertical members and diagonals that slope down towards the center, the opposite of the Howe truss. [15]
The Braga Bridge is a continuous truss bridge. It was the fourth longest span of this type when it was completed in 1966. This list of continuous bridge spans ranks the world's continuous truss bridges in two listings: The first is ranked by the length of main span (the longest length of unsupported roadway) and the second by the total length of continuous truss spans.
The McConnell's Mill bridge is particularly significant for its usage of the Howe truss design; it is one of only four extant Howe truss bridges statewide. [2]: 2 In 1980, the bridge was recognized for its historical significance by being placed on the National Register of Historic Places, [1] along with the Banks Bridge. [4]
This famous bridge was of a new, influential design—the Howe truss bridge. Howe patented the design in 1840. [7] [a] With the financial support of Azariah Boody, a Springfield businessman, Stone purchased for $40,000 [8] ($1,220,800 in 2023 dollars) the rights to Howe's patented bridge design in 1842.
The Water Avenue Bridge, officially known as the Bill Hartley Fraser-Hope Bridge, is a steel Howe truss bridge spanning the Fraser River in the Fraser Valley region of southwestern British Columbia. Linking Hope with the northwest shore, the two-lane bridge carries BC Highway 1 on an upper deck.
Town and Howe truss designs were patented by Ithiel Town in 1820 and William Howe in 1840, respectively. [2] The Buskirk Bridge a Howe truss design, and was built to replace a previous Burr arch truss. It is perhaps the earliest Howe truss bridge that survives in New York State. [4]