The normal clutter of braced shoring is absent on a U.K. job to replace viaduct bearings near London because the shoring firm has created a cheaper and simpler megaprop system by bolting together standard stock. “We’ve never made these composite props before,” says Ian Fryer, engineering director for supplier RMD Kwikform Ltd., Walsall. “We hadn’t thought of it.” Photo: RMD Kwikform Ltd. A propping system to support a bridge under reconstruction can handle varying heights and pier configurations. Related Links: Agile Robots Can Climb High Places Replacing the 108 bearings is part of a $9.2-million project to refurbish Country Way
The 2016 Summer Olympics boating and swimming events have put an international spotlight on what has been a long-running problem in Rio de Janeiro—untreated sewage and trash are clogging up major bays and waterways.