The Ohio Dept. of Transportation completed the state’s first slide-in bridge project on Oct. 17-18, although on a somewhat different schedule following the discovery this summer of excess camber in two precast-concrete beams.
Erection of precast-concrete girders for the aerial guideway of the $2.8-billion Silver Line rail project in northern Virginia has resumed, even as an investigation continues into the cause of longitudinal cracks found in several 96-in.-high units this past summer.
Maybe the restart of the world’s largest tunnel-boring machine will come as a Christmas present to the folks in Seattle, as the scheduled boring by “Bertha,” the 57.5-ft-dia machine currently sitting idle under downtown
Lane Construction Corp. crews, which completed a $56.5-million widening of Interstate 40 near Mt. Juliet, Tenn., in 2014, are back at the site, repairing the highway and adding drainage after repeated hydroplane-related wrecks.
A month after his surprise win as Australia's prime minister, Malcolm Turnbull is reversing his predecessor's policy on transit funding with a $95-million commitment to a 7.3- kilometer light-rail extension in the Gold Coast area of Queensland, which will host the 2018 Commonwealth Games.
The first of many tunnel breakthroughs on the Saudi Arabian capital's new, six-line, 176-kilometer metro recently took place at the Salah Al-Din.A TBM dubbed San'ah completed 1.2 km of tunnel on Line 5 since setting off in late June.
Portland's troubled Morrison Bridge, which spans the Willamette River, will receive its third deck in four years after Multnomah County engineers settled on an open-grid steel deck with a 2.5-in. layer of lightweight concrete to replace a faulty polymer decking system.
A U.S. company working with the Central Japan Railway Co. envisions a magnetically levitated, or maglev, passenger route along the Northeast Corridor between Washington, D.C., and New York City that will reduce travel time to an hour.
Rail officials have procured half the cost of a planned $8.1-billion tunneling project in Melbourne, Australia, but the 9-kilometer-long tunnel-boring plan, which is slated to begin in 2018, still faces political hurdles.