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.
Fallasburg Bridge is a 100-foot (30 m) span Brown truss covered bridge, erected in 1871 in Vergennes Township, Michigan, United States, 5 miles (8.0 km) north of Lowell on the Flat River. Carrying Covered Bridge Road across the Flat, it is located in the Fallasburg Historical District south of Whites Bridge and Smyrna. It is listed on the National Register of Historic Places, and along with Whites Bridge, Langley Covered Bridge, and Zehnder's Holz Brucke, is one of only four Michigan covered bridges open to vehicle traffic.
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.
A king post is a central vertical post used in architectural or bridge designs, working in tension to support a beam below from a truss apex above.
A queen post is a tension member in a truss that can span longer openings than a king post truss. A king post uses one central supporting post, whereas the queen post truss uses two. Even though it is a tension member, rather than a compression member, they are commonly still called a post. A queen post is often confused with a queen strut, one of two compression members in roof framing which do not form a truss in the engineering sense.
The Hares Hill Road Bridge is a single-span, wrought iron, bowstring-shaped lattice girder bridge. It was built in 1869 by Moseley Iron Bridge and Roof Company and is the only known surviving example of this kind. The bridge spans French Creek, a Pennsylvania Scenic River.
A timber roof truss is a structural framework of timbers designed to bridge the space above a room and to provide support for a roof. Trusses usually occur at regular intervals, linked by longitudinal timbers such as purlins. The space between each truss is known as a bay.
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 Stony Brook Covered Bridge, also called the Moseley Covered Bridge, is a wooden covered bridge that crosses Stony Brook in Northfield, Vermont on Stony Brook Road. Built in 1899, it is one of two surviving 19th-century King post truss bridges in the state. It was listed on the National Register of Historic Places in 1974.
The Parker Road–Charlotte River Bridge, also known as the 10 Mile Road–Charlotte River Bridge, is a bridge building located on Parker Road over the Charlotte River in Bruce Township, Michigan. It was listed on the National Register of Historic Places in 2000.
The Waterman Covered Bridge was an historic covered bridge in Johnson, Vermont that carried Waterman Road across Waterman Creek. Built in 1868, it was one of three surviving 19th-century bridges in the town. It was listed on the National Register of Historic Places in 1974, and collapsed in January 1982.
The Grist Mill Bridge, Dam and Mill Site consists of three structures located along Upton Road between Island Road and the Maple River, one-half mile west of Elsie, Michigan in Duplain Township. The three structures are:
Morpeth Bridge is a heritage-listed road bridge over the Hunter River at Morpeth, New South Wales, Australia. It was designed by Percy Allan and built from 1896 to 1898 by Samuel McGill. It is also known as Morpeth Bridge over the Hunter River. The property is owned by Transport for NSW.
The Jeddo Road–South Branch Mill Creek Drain Bridge is a bridge carrying Jeddo Road over the south branch of the Mill Creek Drain in Brockway Township, Michigan. It was listed on the National Register of Historic Places in 2000.
The Glennies Creek Bridge is a heritage-listed road bridge that carries the Rixs Creek-Falbrook Road across the Glennies Creek, located at Middle Falbrook, New South Wales, Australia. The bridge was designed by Ernest de Burgh and built in 1902-03 by William Murphy and James Taylor. The property is owned by Transport for NSW. The bridge was added to the New South Wales State Heritage Register on 20 June 2000.
The Morseville Bridge is a bridge which formerly carried Burt Road over the Flint River in Taymouth Township, Michigan. It was listed on the National Register of Historic Places in 1990. It is the oldest surviving highway bridge in Saginaw County.
The State Street Bridge, also known as the Fort Road Bridge or the Bridgeport Bridge, is a bridge carrying State Street over the Cass River in Bridgeport, Michigan, United States. It was listed on the National Register of Historic Places in 1995.
The Gugel Bridge, also known as the Beyer Road – Cass River Bridge, is a bridge carrying Beyer Road over the Cass River in Frankenmuth Township, Michigan. It was listed on the National Register of Historic Places in 2000. It is the only remaining example in Michigan of a bridge with both a pony truss span and a main through truss span.
The Perrine Road Bridge is a bridge carrying North Saginaw Road over Sturgeon Creek in Larkin Township, Michigan. It was listed on the National Register of Historic Places in 1999. The bridge was moved in 2001 from its location at the time of nomination to the present location, carrying Perrine Road over Sturgeon Creek.
The Ball Road-Little Salt Creek Bridge, also known as simply the Ball Road Bridge, was a bridge carrying Ball Road over Little Salt Creek in Jasper Township, Michigan. It was listed on the National Register of Historic Places in 1999. The bridge was later demolished.
