San Francisco : Architect and Engineer, Inc · leaf 174
es to my mind, hesays, are the San Francisco BayBridge and the Mersey Tunnel. Alsotheir road building. There are about3,000,000 miles of roads In Americaand the rapicHy with which the au-thorities tackle their traffic problemsis amazing. For instance, two hugebridges at San Francisco went up… … Copper TuLx-s reduce resistance to flow.Smooth interior surfaces permit 10% to15% greater velocity of circulation withthe same head. fy Smalhr size tubes can be used than are re-quired with rustable pipe. Q Heat losses are less. Usually, the heat i;ivenoff by uninsulated copper lines is no morethan…
Architecture · Building
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