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Rehabbing Bridges Under Traffic

by Rita Robison, Contributing Editor; Aztec Village, 3000 Aztec Rd. NE, 6, Albuquerque, NM 87107,


Serial Information: Civil Engineering—ASCE, 1994, Vol. 64, Issue 4, Pg. 44-47


Document Type: Feature article

Abstract:

Four urban examples demonstrate how an owner's decision to keep it open during rehabilitation construction forces the designers to contend with an extra set of problems. Reanchoring both cables in the south anchorage vault of Pittsburgh's South Tenth Street Bridge continued despite bitter cold weather because reanchoring the cables was done in the south anchorage vault. In Baltimore, rehabilitation of the Hanover Street Bridge included an 80-year-old RAll bascule and reconstruction of two arcades under a three-phase contract that required only two weekends of complete closure. Traffic over the Providence (Rhode Island) Viaduct, twin structures carrying I-95, was eased by a successful public relations campaign promoting buses and ride pools. In New York City, only the annual Marathon can halt a $45 million renovation of the approaches to the Verrazano Narrows Bridge. Otherwise only two lanes out of six can be closed at any one time for work that will repair and replace some 800,000 sq ft of reinforced concrete decks.

Subject Headings: Rehabilitation | Cables | Cable stayed bridges | Traffic management | Streets | Reinforced concrete | Maintenance and operation

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