The Hoover Dam is called one of American’s seven modern civil engineering wonders. Hurdles to clear included building access roads, diverting the Colorado River, and creating a way to cure massive amounts of concrete quickly enough to complete the project on time. Readers will learn how what was then the world’s tallest dam was built in a region that presented challenges in geography and weather.
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Limba Engleză ● Format PDF ● Pagini 32 ● ISBN 9781502629715 ● Editura Cavendish Square Publishing, LLC ● Publicat 2017 ● Descărcabil 3 ori ● Valută EUR ● ID 8672714 ● Protecție împotriva copiilor Adobe DRM
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