Pumped-storage hydroelectricity, a mature technology first developed in the 1890s, is playing an increasingly important role in the current era as wind and solar power advance. ENR takes a look at some of the largest pumped-storage facilities in the world.
The steel sector is so excited about structural engineer Ron Klemencic’s composite steel superstructure, expected to speed office tower construction, that at least three steel fabricators are studying it, many months before erection is set to begin on Seattle’s 850-ft-tall “proof of concept.”
Now that a 2018 spending bill with a $21-billion hike for infrastructure programs is on the books, it looks like further public-works legislating will come in targeted bills, not a wide-ranging one.
More state transportation agencies are using aerial drones, and overall commercial use of the devices is expected to continue to climb, though not as dramatically as predicted in 2017, recent reports say.
Bowing to industry’s push, the U.S. Environmental Protection Agency now proposes changes in Obama-era federal rules for power plant coal-ash disposal enacted in 2015 after several major spills, aiming to let states provide local oversight and enforcement.
A federal judge ruled that the U.S. Army Corps of Engineers management of the Missouri River in four states over recent years caused flooding that deprived landowners and farmers of their property, opening the door to millions of dollars of possible damage awards.
Federal Bureau of Investigation and General Services Administration officials faced sharp questioning on Capitol Hill as they defended a Trump administration proposal to replace the FBI’s aging downtown Washington, D.C., headquarters with a new building at the same spot.
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