Chicago : Engineering and Contracting Pub. Co. · leaf 116
led together with 60d wire nails and shallbe made practically water-tight. Payment forwooden box sewers will include all excavation. SUB-DRAINS UNDER SEWER. A sub-drain of size indicated shall be con-structed of sewer pipe laid with open joints,and surrounded with gravel. At suitable in-tervals… … Section A-A Section BB Fig. 38—Standard Catch Basin. parts of sand. The cement and sand andmortar shall conform to the foregoing specifi-cations for pipe laying. All joints shall beas nearly as possible of a uniform thicknessand not exceeding -}i in. On the inside ofthe invert the joints shall not…
Buildings
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