road A road is a linear way for the conveyance of traffic that mostly has an improved surface for use by vehicles (motorized and non-motorized) and pedestrians. Unlike streets, the main function of roads is transportation. There are many types of ...

railway line Rail terminology is a form of technical terminology. The difference between the American term ''railroad'' and the international term ''railway'' (used by the International Union of Railways and English-speaking countries outside the United Sta ...

, or

canal Canals or artificial waterways are waterways or engineered channels built for drainage management (e.g. flood control and irrigation) or for conveyancing water transport vehicles (e.g. water taxi). They carry free, calm surface fl ...

is normally raised onto an embankment made of compacted soil (typically clay or rock-based) to avoid a change in level required by the

terrain Terrain or relief (also topographical relief) involves the vertical and horizontal dimensions of land surface. The term bathymetry is used to describe underwater relief, while hypsometry studies terrain relative to sea level. The Latin w ...

, the alternatives being either to have an unacceptable change in level or detour to follow a contour. A

cutting Cutting is the separation or opening of a physical object, into two or more portions, through the application of an acutely directed force. Implements commonly used for cutting are the knife and saw, or in medicine and science the scalpel and ...

is used for the same purpose where the land is originally higher than required.

Materials

Embankments are often constructed using material obtained from a cutting. Embankments need to be constructed using non-aerated and waterproofed, compacted (or entirely non-porous) material to provide adequate support to the formation and a long-term level surface with stability. An example material for road embankment building is sand-bentonite mixture often used as a protective to protect underground utility cables and pipelines.

Intersection of embankments

To intersect an embankment without a high flyover, a series of tunnels can consist of a section of high

tensile strength Ultimate tensile strength (UTS), often shortened to tensile strength (TS), ultimate strength, or F_\text within equations, is the maximum stress that a material can withstand while being stretched or pulled before breaking. In brittle materials ...

viaduct A viaduct is a specific type of bridge that consists of a series of arches, piers or columns supporting a long elevated railway or road. Typically a viaduct connects two points of roughly equal elevation, allowing direct overpass across a wide va ...

(typically built of brick and/or metal) or pair of facing

abutments An abutment is the substructure at the ends of a bridge span or dam supporting its superstructure. Single-span bridges have abutments at each end which provide vertical and lateral support for the span, as well as acting as retaining walls ...

for a

bridge A bridge is a structure built to span a physical obstacle (such as a body of water, valley, road, or rail) without blocking the way underneath. It is constructed for the purpose of providing passage over the obstacle, which is usually somethi ...

Notable embankments

Burnley Embankment The Burnley Embankment is an Embankment (earthworks), embankment carrying the Leeds and Liverpool Canal across the River Calder, Lancashire, Calder and River Brun, Brun valleys in Burnley, Lancashire. Also known as the Straight Mile, the embankm ...

: The largest canal embankment in Asia. *

Harsimus Stem Embankment The Harsimus Stem Embankment, also called Sixth Street Embankment, is a half-mile-long historic railroad embankment, now abandoned and largely overgrown with foliage, in the heart of the historic downtown of Jersey City, New Jersey in the U ...

: The remains of a railway built by the Pennsylvania Railroad in Jersey City, New Jersey, United States *

Stanley Embankment The Stanley Embankment (known locally as the Cob) is a railway, road and cycleway embankment that crosses the Cymyran Strait in Wales, connecting the Island of Anglesey and Holy Island. It carries both the North Wales Coast Line for trains, wh ...

: A railway, road and cycleway that connects the Island of Anglesey and Holy Island, Wales. It carries the North Wales Coast Line and the

A5 road A5 Road may refer to: ;Africa * A5 highway (Nigeria), a road connecting Lagos and Ibadan * A5 road (Zimbabwe), a road connecting Harare and Francistown ;Americas * Quebec Autoroute 5, a road in Quebec, Canada * County Route A5 (California) or Bo ...

References

External links

Federal Highway Administration Design Manual: Deep Mixing for Embankment and Foundation Support

Federal Highway Administration The Federal Highway Administration (FHWA) is a division of the United States Department of Transportation that specializes in highway transportation. The agency's major activities are grouped into two programs, the Federal-aid Highway Program ...

Works cited