The basic components of a bridge are superstructure (supports load), substructure (transfers load to foundation soil) and deck (transfers surface load to other components). Some other differences between bridges and culverts are given below:Ī bridge is a passage of transportation (for people or vehicles) over a large body of water or physical obstruction.Ī culvert is generally a tunnel-like structure that allows water to pass under a roadway or railway. Other factors also set culverts and bridges apart from each other, like terrain and design. The purpose of both bridges and culvert is providing a transportation route over obstructions, which is why they may seem the same, but the span length chiefly differentiates between the two structures. Culvert is also useful for water drainage or bridging the gap over a physical obstruction. ![]() Source: Ī culvert is a tunnel structure that allows running water to pass under a roadway or railway. BridgeĪ bridge is a structure that carries a roadway or railway over a physical obstruction, such as a river, lake, or even another road or railway. ![]() But various factors, such as length, purpose, the complexity of design, building components, and structure, are the distinguishing elements among bridges and culverts. Both provide passage for transportation, usually over running water, and so it is common to confuse them with each other. ![]() Bridges and culverts are important parts of the infrastructure of our civilization.
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