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Replacing Bridge Decks

by Neal H. Bettigole, (F.ASCE), President; Exodermic Bridge Deck Institute, Westwood, NJ,


Serial Information: Civil Engineering—ASCE, 1990, Vol. 60, Issue 9, Pg. 76-77


Document Type: Feature article

Abstract:

U.S. bridges last an average of 68 years, their decks 35 years. But few bridges have been built with provisions for future deck repair, the only criterion being lowest first cost. During the 1990s, 40% of existing decks will need replacing with construction costs ranging from $70 to $200/sq ft. A checklist of items to be considered in choosing a replacement deck emphasizing life cycle costing is included with a discussion of deck types: cast in place concrete, precast concrete, prestressed concrete, concrete filled steel grids, open grids, exodermic and orthotropic designs.

Subject Headings: Bridge decks | Prestressed concrete | Precast concrete | Steel decks | Grid systems | Rehabilitation | Prestressing

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