The contract includes a tunnel under the Nile river, five elevated stations and two at-grade stations. When complete, the project will increase Cairo's network to 100 km.
A 300-meter-tall timber skyscraper would be more sustainable and faster to construct than conventional buildings, says the Centre for Natural Material Innovation.
Rusty cables, cut-up steel and column remnants lie in heaps along Interstate 95 as crews prepare for construction of the southbound half of the new Whittier Bridge.
Rebuilding after the Feb. 2011 magnitude-6.3 earthquake in Christchurch, a city of 382,000 people, offers a cautionary tale for future disaster recovery.
The U.S. Interior Dept. has approved construction of a 287-MW solar-photovoltaic project on 1,767 acres of federal land in the Mojave Desert, near Baker, Calif.
The final portion of Water Tunnel No. 3 will be ready by 2020, Mayor Bill De Blasio (D) said one day after reports that the mayor himself had delayed the project.
Using powerful nanotechnology tools, a research team led by the Massachusetts Institute of Technology has successfully modeled the complex structure of calcium silica hydrate (CSH), the main binding material in cement and concrete.
South Carolina has the nation’s fourth-largest state-owned transportation network, but a labyrinthine project-upgrade priority system has hampered the state Dept. of Transportation’s ability to keep roads and bridges from worsening over the past decade, state auditors and Transportation Secretary Christy Hall testified on April 7.
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