Workers floated out the last section of the old Willis Avenue Bridge on Oct. 26. The section will be moved on Nov. 2, decontaminated of asbestos and other harmful materials and transported to New Jersey for recycling. The new bridge section has been actively accepting traffic since Oct. 2, but construction of the $612-million project is scheduled to continue for the next two years, says Bill Nyman, project manager for Hardesty & Hanover LLP. “We’ve done this without affecting traffic,” says Nyman. “The project is on schedule, and there’s been limited impact.” Nyman says the project has caused quite a
Arch dams, classically curved monoliths situated in narrow valleys, are not as common as other types of dams, such as embankment dams and gravity dams. ENR takes a look at some of the biggest arch dams in the world, both completed and under construction.