Handbook of mechanical and electrical cost data, giving shipping weights, capacities, outputs, and net prices of machines and apparatus, and detailed costs of installation, maintenance, depreciation and operation, together with many principles and data relating to engineering economics (1918)
Gillette, Halbert Powers, 1869-, Dana, Richard Turner, 1876-1928, joint author · New York, McGraw-Hill · leaf 996
to permit convenient laying and of sufficient depth to makethe completed lateral with its protecting plank at least 18 ins. belowthe grade of the street. Joints of lateral shall be well protectedwith cement mortar or concrete. Over the lateral, when laid inseparate trench, shall be placed about 3… … Fig. 4. The dimensions are usually as follows: inside diam. 3 ins.; shell0.5 in. : length 2 ft. Manholes must also be taken into consideration. If the man-holes are to be brick-lined, the cost will vary from 40 cents to $1per cubic foot of brickwork. Such miscellaneous items as the costof labor for…
