San Francisco : Architect and Engineer, Inc · leaf 418
ars according to size; powerhad to be supplied and a certain measureof supervision. A corrugated pipethrough the levee with an automaticvalve on the outer end solved the wholeproblem. Water could flow freely fromthe land to the river whenever the latterwas at low or medium stage, but waseffectually… … Automatic Drainaire Gate at the Oliver SaltWorks, Mount Eden. Calif. connection with duck ponds, log pondsand seashore lakes. A pipe installeilwith an automatic gate on the outer endresults in ridding land of surface water and maintaining it in that condition inthe face of later rises of the water…
Architecture · Building
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