A February report from a 16-person bridge review panel calls for a new design in the proposed 10-lane Interstate 5 Columbia River Crossing connecting Portland, Ore., and Vancouver, Wash. Technical and engineering issues “could not be overcome” with the current open-web box design, the report says. The panel was formed in November after an independent review confirmed suspicions relating to high construction costs and unknown risks associated with an unorthodox design. The February report proposes scrapping the $440-million open-web design in favor of a cable-stay ($400 million), tied-arch ($430 million) or composite-deck truss option ($340 million) as part of the
The market is generally healthy and steadily growing, and margins are up for large specialty contractors. Further, advances in design tools and owner demand for collaboration are giving subcontractors a seat at the table early on in projects.