
Articles
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2 weeks ago |
enr.com | Scott Lewis
NewsConstruction methods This 1944 cover image shows a crew of Navy Seabees placing steel mats for an airstrip somewhere in the Pacific. Known as Marston mat or pierced planking, and developed by the Corps of Engineers, this product proved invaluable to the war effort. It consisted of steel sheets 1/4 in. thick, 16 in. wide, and 10 ft long, pierced with 3-in.-dia cupped holes and fringed with a series of slots and hooks so they could be interlocked to form a tight, smooth mat.
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1 month ago |
enr.com | Scott Lewis
The structure of the U.S. construction industry in 1960 could be compared to a stone-walled bastion. Union locals had ironclad control over their recruitment process, which was steeped in nepotism and cronyism. Contractors, dependent on unions for their labor supply, were afraid to press them to open their ranks to Black workers.
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2 months ago |
iit.edu | Scott Lewis
Are you interested in working to build strong communities and to improve the lives and opportunities available to the people who live in them? Do you want a career in which your expertise and skills can have a positive impact on solving challenges that are facing society? If so, a master of public administration (M.P.A.) degree could be the right choice for you.
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Nov 21, 2024 |
enr.com | Scott Lewis
This 1967 cover photo depicts construction of the Nagarjunasagar Dam in India. The three-mile long gravity dam, with a central masonry section almost one mile long, flanked by earth and rockfill embankments, was built almost entirely by hand. Tower cranes were used, but workers carried baskets of mortar up ramps supported by bamboo scaffolding and spread it in 2-in. layers. Then other workers placed 2.5-cu-ft stone blocks on the fresh mortar and vibrated them by hand to get a firm fit.
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Nov 21, 2024 |
enr.com | Scott Lewis
The most extensive Cold War construction undertaken by the United States was building an elaborate network of missile bases. The first U.S. intercontinental ballistic missile was the Atlas, a 75-ft-long, 10-ft-dia, 130-ton weapon. An ENR reporter visited the first Atlas missile site during construction at Vandenberg Air Force Base in California in 1958.
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