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Bridge

Bridge construction and inspection terminologies.

Contributors in Bridge

Bridge

Environmental impact statement (EIS)

Construction; Bridge

A comprehensive study of potential social, economic and environmental impacts related to a federally-assisted project. Projects for which an EIS is required are defined in the National Environmental ...

Rigid frame bridge

Construction; Bridge

A type of girder bridge in which the piers and deck girder are fastened to form a single unit. Unlike typical girder bridges that are constructed so that the deck rests on bearings atop the piers, a ...

Spandrell

Construction; Bridge

The roughly triangular area above an arch and below a horizontal bridge deck. A closed spandrell encloses fill material. An open spandrel carries its load using interior walls or columns.

Wheel guard

Construction; Bridge

A raised curb along the outside edge of traffic lanes to safeguard constructions outside the roadway limit from collision with vehicles.

Timber freespan

Construction; Bridge

Timber freespan bridges can freespan up to 26 feet. A timber freespan is generally used to span a creek or other relatively small crossings.

Load

Construction; Bridge

Weight distribution throughout a structure; loads caused by wind, earthquakes and gravity affect how weight is distributed throughout a structure.

Impost

Construction; Bridge

The surface that receives the vertical weight at the bottom of an arch.

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