One of the tallest bridges in the U.S. is about to receive an extensive seismic upgrade, including 2.2 million lb of structural steel. Bids open on Sept. 7 for a $71-million seismic retrofit for the 1970s-era Foresthill Bridge in Auburn, Calif. At 730 ft tall and 2,428 ft long, its retrofit will pose dizzying challenges to the selected contractor. Photo: Courtesy Of Place County Public Works California’s tallest bridge will receive a $71-million seismic upgrade. “We are garnering a lot of interest from contractors,” says Ken Grehm, director of public works for owner Placer County. Grehm has led more than
The growing need to collect, store and analyze the huge volumes of data collected from infrastructure project stakeholders is generating a new growth area for construction-sector firms, IT vendors and professionals.