Handbook of construction plant, its cost and efficiency (1914)
Dana, Richard Turner, 1876-1928 · Chicago, The M. C. Clark Publishing Co. · leaf 640
TRENCHING MACHINES 635 and jointed inside the shield, which meanwhile acts as a tempo-rary cofferdam. Only general figures are available on the cost of this work.Mr. Hall states that for depths of 10 ft. and less the cost has … Fig. 299B. Sketch Showing Ejector and Method of Pumping Waterfrom Sewer Trench. varied so much owing to local conditions, differences in materialetc., that it is impossible to get at average costs. He statesthat the cost of excavating 42-in. sewer from 17 to 20 ft. deepiias been 53 cts. per cu. yd.…
Contractors' operations · Building
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