British Engineers Tackle Corroded Cables on Trio

摘要

All three of the U.K.'s major sus-pension bridges have fallen prey to main-cable rusting, and dehumidification is the preferred cure. Work on the oldest struc-ture, the Forth Road Bridge, is now starting. The Severn and Humber bridges are next in line. "All Japanese suspension bridges are now fitted with dry-air injection as a pre-ventative measure," says the Forth's general manager and bridgemaster, Alastair Andrew. But work on the Forth will be the first use of dehumidification "to slow down, or at best stop, corrosion," he says.