San Francisco : Architect and Engineer, Inc · leaf 207
n structures which will adjustthe eye of the motorist to the difference be-tween sunlight and artificial light at bothportals. The tunnels are to be concrete lined.Trucks, known as batch wagons, are em-ployed in transporting batches of dry mixedmaterial from the mixing plant at Emery-ville to the… … t^Ti^f. SPEHD WORK ON HUGE CONTRA COSTA TUNNEL PROJECTHere is a section ot the Broadway low-level tunnel project, near Oakland,California, where a new traffic link between Alameda and Contra CostaCounties is being constructed, with two huge one-way tunnels, each j,108feet long is rolling through…
Architecture · Building
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