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Rebuilding History

by Vahid Ownjazayeri, P.E., Deputy Dir. of Constr. Contracts; Massachusetts Bay Transportation Authority, Boston, MA,
David A. Peters, P.E., Proj. Mgr.; HDR Engineering Inc., Boston, MA,


Serial Information: Civil Engineering—ASCE, 1998, Vol. 68, Issue 10, Pg. 64-67


Document Type: Feature article

Abstract:

Deterioration of the second-oldest multiple-arch masonry viaduct in the country�in Canton, Mass.�threatened its ability to continue carrying Amtrak's Northeast Corridor trains, and made it impossible to carry the high-speed rail that the railroad company is planning. To rehabilitate the Canton Viaduct, designers widened the tracks to accommodate the high-speed lines, provided noise-dampening features to benefit the surrounding community, and performed a seismic upgrade. They also designed a supplemental deep foundation, a complete replacement of the concrete spandrel arches and a new, independent superstructure using precast, prestressed concrete.

Subject Headings: Railroad trains | Viaducts | Rail transportation | Precast concrete | High-speed rail | Foundation design | Arches

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