The latest in a series of reports about concerns over construction defects in the new San Francisco-Oakland Bay Bridge suspension span involves cracked welds in the girders that form the span’s roadway. Others that have emerged include suspect foundation concrete, rusted tendons in the skyway that connects the suspension span to Oakland, broken anchor rods, and corrosion on the main cable. Many of the issues were first reported by The Sacramento Bee.As a “fracture critical” structure, in which some vital structural elements lack redundancy or backup, the bridge would seem to be a perfect candidate for an installed system for structural
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.