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Oregon Bridge Features Innovative Bell Piers, Floating Falsework

by George Svenson, Svenson & Assocs., Watsonville, Calif.,


Serial Information: Civil Engineering—ASCE, 1981, Vol. 51, Issue 4, Pg. 57-59


Document Type: Feature article

Abstract:

The I-205 bridge, scheduled for completion in 1983, will be a final link in a 40-mile highway east of Portland, Oregon. the substructure and superstructure design featured unusual technology. Piers were constructed using two unique systems: an interlocking H-pile cofferdam, and a system using a bell-shaped steel form and rebar cage. The roadways are being constructed using a floating falsework system in some places which is jacked up on 36-in. diameter piles. Where the roadway is not too high, precast segments are used, but above 134 ft, a cantilevered traveller slip-forming system is used.

Subject Headings: Highway bridges | Piles | Piers | Highways and roads | Highway and road design | Falsework and scaffolds | Bridge design | Oregon | United States

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