San Francisco : Architect and Engineer, Inc · leaf 189
LOADING large casing bombs with 60 per cent dynamite. The bombsare S in diameter and IV long. They hold from 100 to 350 poundsof dynamite. Featuring Rock Excavation of the San FranciscoPier, Golden Gate Bridge -^ 43 ► … ROCK EXCAVATION FOR SAN FRANCISCOPIER, GOLDEN GATE BRIDGE G\ T„ HE site of the SanFrancisco pier of the Golden Gate Bridgeis a rock ledge. 1125 feet off shore, thedepth of water varying from 52 to 87 feetbelow mean lower low water. The excava-tion is in the shape of a rectangle, 130 by190 feet,…
Architecture · Building
Internet Archive · Public Domain Mark 1.0. Free to use for anything.
