A truss bridge is a bridge whose load-bearing superstructure is composed of a truss, a structure of connected elements, usually forming triangular units. The connected elements may be stressed from tension, compression, or sometimes both in response to dynamic loads. The basic types of truss bridges shown in this article have simple designs which could be easily analyzed by 19th and early 20th-century engineers. A truss bridge is economical to construct because it uses materials efficiently.
A lattice truss bridge is a form of truss bridge that uses many small, closely spaced diagonal elements forming a lattice. The design was patented in 1820 by architect Ithiel Town.
The Brown Covered Bridge is a wooden covered bridge in Shrewsbury, Vermont. Located in the northwestern part of the town, it carries Upper Cold River Road over the Cold River. It was closed to vehicular traffic in 2011 due to damage from Hurricane Irene and reopened as a National Historic Site on July 5, 2016. Built in 1880 by noted Vermont bridgewright Nichols M. Powers, it was designated a National Historic Landmark in 2014, cited as one of the finest and least-altered examples of a Town lattice truss covered bridge in the United States.
Beaverkill Bridge, also known as Conklin Bridge, is a wooden covered bridge over the Beaver Kill north of the hamlet of Roscoe in the Town of Rockland, New York, United States, that carries Conklin Road through Beaverkill State Campground. It was erected in 1865, one of the first bridges over the river in what was then still a largely unsettled region of the Catskill Mountains.
The Cogan House Covered Bridge is a Burr arch truss covered bridge over Larrys Creek in Cogan House Township, Lycoming County, in the U.S. state of Pennsylvania. It was built in 1877 and is 94 feet 2 inches (28.7 m) long. The bridge was placed on the National Register of Historic Places in 1980, and had a major restoration in 1998. The Cogan House bridge is named for the township and village of Cogan House, and is also known by at least four other names: Buckhorn, Larrys Creek, Day's, and Plankenhorn.
The Lynchburg Covered Bridge is a historic wooden covered bridge that spans the east fork of the Little Miami River in Lynchburg, Ohio. It, also, has the distinction, following a recent repair and restoration project, of being the only such covered bridge in North America to have been converted to a pseudo-suspension infrastructure. The bridge was built in 1870 as a Long truss.
The West Cornwall Covered Bridge is a wooden covered lattice truss bridge carrying the Sharon-Goshen Turnpike over the Housatonic River in the town of Cornwall, Connecticut. Records indicate that a bridge may have been in place in this location as early as 1762. A previous bridge was destroyed in the flood of 1837 and a new bridge was constructed in 1841. This bridge would also be destroyed and the current bridge would be completed circa 1864. Utilizing the central pier from the previous incarnation, despite the Town lattice being able to withstand the weight and single span, the bridge has two spans. The later addition of queen trusses and supports gives the bridge an unusual appearance. Modernization of the bridge in 1968 and 1973 has continued to let the bridge handle traffic. It was added to the National Register of Historic Places in 1975.
The Coombs Covered Bridge is a wooden covered bridge which carries Coombs Bridge Road over the Ashuelot River in northern Winchester, New Hampshire. It was built in 1837, and is one of the state's small number of surviving 19th-century covered bridges. It was listed on the National Register of Historic Places in 1976.
The Shinn Covered Bridge is a historic wooden covered bridge in the southeastern part of the U.S. state of Ohio. Located in the countryside northeast of Bartlett in Washington County, this single-span truss bridge was built in 1886 by local carpenter Charles T. Shinn. Built of weatherboarded walls with stone abutments and a metal roof, the bridge features vertical siding, and its portals have remained vertical and resisted creeping into another shape. The heart of the bridge's structure employs the Burr Truss design, which mixes the king post truss with a wooden arch designed by Andrea Palladio in the sixteenth century. Shinn built his bridge to span the western branch of Wolf Creek in Palmer Township. Measuring 98 feet (30 m) in length, the bridge was constructed soon after the drowning of one of Shinn's children.
The Root Covered Bridge is a historic wooden covered bridge in the southeastern part of the U.S. state of Ohio. Located off State Route 555 in far northern Decatur Township, Washington County, the bridge was built in 1878 in the Long truss mode of truss bridge construction. Measuring 65 feet (20 m) in its single span, it spans the West Branch of the Little Hocking River.
Quinlan's Covered Bridge, also called the Lower Covered Bridge, and Sherman Covered Bridge is a wooden covered bridge that crosses Lewis Creek in Charlotte, Vermont on Monkton Road. It was listed on the National Register of Historic Places in 1974. It is one of nine 19th-century Burr arch covered bridges in the state.
The Northfield Falls Covered Bridge, also called the Station Covered Bridge, is a wooden covered bridge that carries Cox Brook Road across the Dog River in Northfield, Vermont. Built in 1872, this Town lattice truss bridge is one of five surviving covered bridges in the town, and one of two that are visible from each other. It was listed on the National Register of Historic Places in 1974.
The Hopkins Covered Bridge is a wooden covered bridge that crosses the Trout River in Enosburg, Vermont on Hopkins Bridge Road. Built in 1875 by brothers Sheldon & Savannah Jewett, it is one of a cluster of area covered bridges all attributed to the same builders. It was listed on the National Register of Historic Places in 1974.
The Longley Covered Bridge, also known as the Harnois Covered Bridge, is a wooden covered bridge that crosses the Trout River in Montgomery, Vermont on Longley Bridge Road. Built in 1863, this Town lattice truss bridge is the oldest of a group of area bridges built by brothers Sheldon & Savannah Jewett. It was listed on the National Register of Historic Places in 1974. The bridge is closed to traffic, and has been bypassed by an adjacent temporary bridge.
The Delhi Bridge, also known as the East Delhi Bridge, is a one-lane, wrought iron Pratt through truss bridge that carries East Delhi Road over the Huron River in Washtenaw County, Michigan. The bridge was completed October 12, 1883 to replace a wooden span built in 1851. In 1917, the bridge was severely damaged by a tornado but was rebuilt. After it was closed to traffic in 2005 for being unsafe, the bridge was renovated and reopened in 2009. The bridge is listed on the National Register of Historic Places.
The Eldean Covered Bridge is a historic covered bridge spanning the Great Miami River in Miami County, Ohio north of Troy. Built in 1860, it is one of the nation's finest surviving examples of a Long truss, patented in 1830 by engineer Stephen H. Long. At 224 feet (68 m) in length for its two spans, it is the longest surviving example of its type. It was listed on the National Register of Historic Places in 1975, and was designated a National Historic Landmark in 2016.
The Contoocook Railroad Depot is located in Hopkinton, New Hampshire, United States, in the village of Contoocook. The depot was completed in 1849 as one of the first substantial railroad passenger stations west of Concord on the Concord and Claremont Railroad. The building is one of the best preserved of a small number of gable-roofed railroad stations surviving from the first decade of rail development in New Hampshire. The station exemplifies the pioneering period of rail development in the state.
The Tilton Island Park Bridge is a foot bridge in Tilton, New Hampshire. It spans a portion of the Winnipesaukee River just east of downtown Tilton, providing access to Tilton Island Park, located on an island in the river. Built in 1881, it is a rare surviving example of a bridge with cast iron components, designed by a distinctive patent issued in 1858 to Lucius Truesdell. The bridge was listed on the National Register of Historic Places in 1980.
The bridge is significant locally as the only Pratt through-truss bridge remaining in Kosciusko County, and is important regionally as one of the few surviving spans built by the Bellefontaine Bridge and Iron Company.
The Burrington Covered Bridge is a historic queenpost truss covered bridge in Lyndon, Vermont. Built in the 19th century, it is one of five covered bridges in Lyndon. It formerly carried Burrington Bridge Road across the Passumpsic River; it has been bypassed by a modern bridge. It was listed on the National Register of Historic Places in 1974.
