104 resultados para Road construction safety


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"Supersedes TM5-9500, Principles of modern excavation and equipment, 11 August 1942."

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Mode of access: Internet.

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Cover title varies slightly.

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Research authority: National Academy of Sciences, Highway Research Board.

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Description based on: Adopted Jan. 2, 1971.

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Sequel: Report upon the locomotive engines, and the police and management of several of the principal rail roads in the northern and middle states.

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Includes index.

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Federal Highway Administration, Office of Research and Development, Washington, D.C.