The Architect & engineer of California and the Pacific Coast (1905)
San Francisco, Calif. : Architect and Engineer Co · leaf 421
he tunnel excavation amounted to 5,224 feet,conduit 3,829 feet, canal 1,009 feet. In the second period the excavationwas: Tunnel, 5,038 feet, conduit 3,615 feet, and canal 561 feet. These aretypical records of the last three months. During October. 1908. the UnitedStates 31-day 3-shift record for… … /(■. Los .lugrlcs .UlUC.hlcl—F-r,,:;,::::- I
Architecture · Building
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