A lattice bridge is a form of truss bridge that uses many small, closely spaced diagonal elements forming a lattice. The lattice Truss Bridge was patented in 1820 by architect Ithiel Town. Originally a design to allow a substantial bridge to be made from planks employing lower–skilled labor, rather than heavy timbers and more expensive carpenters, this type of bridge has also been constructed using many relatively light iron or steel members. The individual elements are more easily handled by the construction workers, but the bridge also requires substantial support during construction. A simple lattice truss will transform the applied loads into a thrust, as the bridge will tend to change length under load. This is resisted by pinning the lattice members to the top and bottom chords, which are more substantial than the lattice members, but which may also be fabricated from relatively small elements rather than large beams.

Belfast truss

The ''Belfast truss'' is a cross between Town's lattice truss and the

bowstring truss A bowstring joins the two ends of the bow stave and launches the arrow. Desirable properties include light weight, strength, resistance to abrasion, and resistance to water. Mass has most effect at the center of the string; of extra mass in th ...

. It was developed in Ireland as a wide-span shallow rise roof truss for industrial structures. McTear & Co of Belfast, Ireland began fabricating these trusses in wood starting around 1866. By 1899, spans of had been achieved, and in the 20th century, shipyards and airplane hangars demanded ever greater clear spans.

Wood lattice truss bridges

Astabula Cty (Root Road) townsend latice1982

* Bartonsville Covered Bridge * Brown Covered Bridge *

Burt Henry Covered Bridge The Burt Henry Covered Bridge, also known as the Henry Covered Bridge or just the Henry Bridge, is a covered bridge that spans the Walloomsac River near Bennington, Vermont. A Town lattice truss bridge, it carries River Road, just south of the vi ...

* Cornish-Windsor Covered Bridge * Euharlee Covered Bridge * Kingsley Covered Bridge
Newton Falls Covered Bridge
Newton Falls, Ohio * Poole's Mill Covered Bridge * Root Road Covered Bridge * Waterford Covered Bridge *Watson Mill Covered Bridge * Windsor Mills Covered Bridge *

Worrall Covered Bridge The Worrall Covered Bridge, also known as the Woralls Bridge is a wooden covered bridge carrying Williams Road across the Williams River in Rockingham, Vermont, United States. Built about 1870, it is the only surviving 19th-century covered br ...

* Frankenfield Covered Bridge * Uhlerstown Covered Bridge, Pennsylvania *

Van Tran Flat Bridge Van Tran Flat Bridge, also known as the The Motts Flats Bridge and The Livingston Manor Covered Bridge, is a wooden covered bridge that crosses Willowemoc Creek in the town of Rockland, in Sullivan County, New York. The bridge was built in 1860 ...

Zehnder's Holz Brucke Frankenmuth is a city in Saginaw County, Michigan, Saginaw County in the U.S. state of Michigan. The population was 4,944 at the United States Census, 2010, 2010 census. The city is surrounded by Frankenmuth Township, Michigan, Frankenmuth Township ...

Iron or steel lattice truss bridges

Howard Carroll built the first completely wrought-iron lattice truss bridge. This was built for the New York Central Railroad in 1859.J. A. L. Waddell
Bridge Engineering Vol. 1
Wiley, New York, 1916; page 23. * Bennerley Viaduct * Bridge in Brown Township *

Dowery Dell Dowery Dell, between Rubery and Halesowen in Worcestershire, was a , nine span lattice steel, single-track railway viaduct that carried the Halesowen to Longbridge railway. A 10 mph speed limit was in operation. The line opened in 1883. Train ...

Viaduct, also known as

Hunnington Hunnington is a village and civil parish in the Bromsgrove District of Worcestershire, England, close to the border with West Midlands, and just south of Halesowen. According to the 2001 census the parish had a population of 552. History It was ...

or Frankley Viaduct *

Kew Railway Bridge Kew Railway Bridge spans the River Thames in London, England, between Kew and Strand-on-the-Green, Chiswick. The bridge was opened in 1869. History The bridge, which was given Grade II listed structure protection in 1983, was designed by ...

Norwottuck Rail Trail Bridge The Norwottuck Rail Trail Bridge (also known as the Northampton Lattice Truss Bridge) is a former crossing of Boston and Maine Railroad over the Connecticut River in western Massachusetts, connecting the towns of Northampton, Massachusetts, Northa ...

* Willow Creek Bridge (1913), in Pierce County, Nebraska *

Upper Slate Run Bridge Upper may refer to: * Shoe#Shoe construction, Shoe upper or ''vamp'', the part of a shoe on the top of the foot * Stimulant, drugs which induce temporary improvements in either mental or physical function or both * ''Upper'', the original film titl ...

(1890), a 'quintangular' lattice truss in Lycoming County, Pennsylvania

References

{{Reflist

External links

Picture and description of Town's lattice trussWatson Mill Bridge, Georgia, US
Truss bridges by type

Belfast truss

Wood lattice truss bridges

Iron or steel lattice truss bridges

See also

References

External links