A fill trestle or filling trestleOld Rails as Trestle Stringers
''Engineering and Mining Journal'', Vol. 96. no. 20. November 15, 1913 923. print. is a temporary construction trestle that is built to provide a

scaffolding Scaffolding, also called scaffold or staging, is a temporary structure used to support a work crew and materials to aid in the construction, maintenance and repair of buildings, bridges and all other man-made structures. Scaffolds are widely use ...

for the placement of fill or an

earthen dam An embankment dam is a large artificial dam. It is typically created by the placement and compaction of a complex semi-plastic mound of various compositions of soil or rock. It has a semi-pervious waterproof natural covering for its surface an ...

. Typically, the trestle is built across the valley and a

railway Rail transport (also known as train transport) is a means of transport that transfers passengers and goods on wheeled vehicles running on rails, which are incorporated in tracks. In contrast to road transport, where the vehicles run on a pre ...

is laid across the trestle. Specially designed side-dumping railroad cars filled with earth or gravel are pushed onto it and dumped, burying the trestle. Typically, a fill trestle is constructed out of wood which remains buried in the fill and eventually decomposes. Advances in

construction Construction is a general term meaning the art and science to form Physical object, objects, systems, or organizations,"Construction" def. 1.a. 1.b. and 1.c. ''Oxford English Dictionary'' Second Edition on CD-ROM (v. 4.0) Oxford University Pr ...

technology, particularly the development of the

dump truck A dump truck, known also as a dumping truck, dump trailer, dumper trailer, dump lorry or dumper lorry or a dumper for short, is used for transporting materials (such as dirt, gravel, or demolition waste) for construction as well as coal. A t ...

, have rendered the fill trestle technique obsolete.

References

External links

"Toils on Weak Soils: A Photo-essay on the Construction of the Stockwood Fill (1906 - 1909), Part I"
on the Northern Pacific Railway Building engineering Railway bridges {{rail-transport-stub