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McArdle Viaduct Number 1 (Pittsburgh, PA)

McArdle Viaduct Number 1 (Pittsburgh, PA)

CDR Maguire provided design management services to the City of Pittsburgh for the rehabilitation of the McArdle Viaduct No. 1. This 215-foot through truss bridge spans a total of 548 feet and carries traffic on the McArdle Roadway from Mount Washington to the South Side over the CSX railroad.

The project included complete replacement of the approach spans along with preservation of the existing abutments, pier foundations, and historic truss span.

Vintage cast iron railing along the outer edge of the sidewalk was retained, while a new PA Type 10M bridge barrier was installed along both curbs of the roadway.