Trestles are useful as approaches to bridges over marshes and shallows. A trestle bridge is a bridge composed of a number of short spans supported by closely spaced frames.

Goat Canyon Trestle is a wooden trestle in San Diego County, California. [1] At a length of 597–750 feet (182–229 m), it is the world's largest all-wood trestle. [ 1 ] [ 8 ] [ 10 ] [ 11 ] Goat Canyon Trestle was built in 1933 as part of the San Diego and Arizona Eastern Railway , after one of the many tunnels through the Carrizo Gorge ...

2018年1月1日 · Railroads define their bridges by the types of spans used, such as “through riveted truss swing span with timber pile trestle and concrete box girder approaches” (see photo 1).

2023年3月23日 · A steam train carrying lumber stops on top of a trestle bridge on a tributary branch of the Northern Pacific Railroad. Timber trestles were one of the few railroad bridge forms that did not develop in Europe.

2024年9月10日 · The engine “Firefly” on a trestle of the Orange and Alexandria Railroad, circa 1864. Some timber trestles still stand today, preserved as historical landmarks that pay tribute to the role they played in shaping North America’s railroad network.

A trestle is composed of an open, braced wooden framework that supports the railroad above ground level. It consists of a series of identical (or nearly so) vertical supports holding up a succession of short spans.

2024年9月4日 · Railroad bridges and train trestles can trace their roots back to the industry's beginnings in the mid-19th century. Prior to the development of iron, and later steel, early bridges were built of either stone or wood.

Railroad bridges are built with the goal of carrying the train and the load over an obstruction, which could be a river, canyon, highway or another bridge. The railroad bridges have a long, rich history, dating back to the beginning of the railroad industry, which was the 19th century.

When building railroad tracks across wide and deep valleys, trestles made of wooden timber were built to keep the track solid and safe high above the ground. Most trestles were meant to be temporary, allowing trains to transport materials necessary to create a solid fill beneath the tracks.

2018年2月20日 · The largest of the wood frame trestles, the trestle at Mile 87.9 crossing the West Canyon Creek, was a stupendous structure, 750′ long and 182′ high, and turned the rail line almost 90 degrees over its entire length at the head of the canyon