Chicago : Engineering and Contracting Pub. Co. · leaf 617
was blocked up slightlyabove the level of footings and floor, and theconcrete was dumped between the rails ai ispread by shovelers. In this way, the cot -crete sub-base was placed and allowed to siafter which the reinforcement was set athe main footings and floor slabs were pour All the work was… … Fig. 5—Curve and Reducer 12 to 10 ft.Concrete Sewers, Baden No. 1. Fig. 6—Standard Potter Machine on 16-ft.South Harlem Sewer. closed arch sewer, 40 ft. across. As the ex-pense of such a sewer would have been un-warranted, tin- open section shown in I•ik. 1was adopted. Tins sewer consists of two…
Buildings
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