Bridges by type
What it is
Structures that carry a road, railway or path over a gap such as a river or valley.
How it works
Beam bridges bend, arches compress, trusses share load between members, and cable-stayed and suspension bridges hang the deck from cables.
Diagram: Indiacon original, not to scale.
Main components
Deck, girders, bearings, expansion joints, piers, abutments and foundations.
Key codes
IRC 6, IRC 112, IRS Concrete Bridge Code. Cited by number only; get the text from BIS or the issuing body.
Notable projects
Bhupen Hazarika Setu, New Pamban Bridge, Millau Viaduct (France), Øresund Bridge (Denmark–Sweden).