Pasadena Goldline

PB&A spent most of 2001 working with Kiewit/Washington on the design for this mile long underground tunnel. Over 250,000 square feet of shoring was installed in this congested urban area, the engineering complicated by the difficult accessibility issues. A complex mixed design of soldier beams, underpinning and internal struts support the surcharge of a six-story building and 250-ton crane.

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