Bay Bridge Joint Venture Responds to Allegations of Ventilation Hazards

In our July 2 edition (p. 8235), we reported about inspections of the new Eastern Span project of the San Francisco-Oakland Bay Bridge. In June, several welders who had been laid off from the project alleged that they had been exposed to dangerous levels of manganese and other welding fumes while working within the caissons for the bridge's supports. They also alleged that the joint venture in charge of the proje