San Francisco : Architect and Engineer, Inc · leaf 27
spans, weighing upwards of 400tons, 150 feet in the air in the heavy tides of upperSan Francisco Bay. ?. The aluminum span is covered with a safety net,and the contractors believe that this is by far thesafest method of bridge construction ever devised. Acomplete aluminum falsework span weighs only… … ARCHITECT AND ENGINEER
Architecture · Building
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