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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语言 英语 ● 格式 PDF ● 网页 32 ● ISBN 9781502629715 ● 出版者 Cavendish Square Publishing, LLC ● 发布时间 2017 ● 下载 3 时 ● 货币 EUR ● ID 8672714 ● 复制保护 Adobe DRM
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