Handbook of construction plant, its cost and efficiency (1914)
Dana, Richard Turner, 1876-1928 · Chicago, The M. C. Clark Publishing Co. · leaf 644
rench averaged about 8 ft. deep.The total number of days work put in on the job was 325%,or an average of 61.8 days per 1,000 ft. of sewer. The trenchingmachine was operated 20 days out of the total 26 put in uponthe work, or an average of 263% ft. per day. The least distancemade in a day was 20… … 0 400 800 WO 1600 1000 1400 WOO 3100 3600 4000 4400 4600 4800 5000 5200LengthsSewer Laid in Feet Fig. 301. Progress Diagram of Sewer Trenching Machine at WestSalem, Wis. The labor upon the work was divided as follows in days per1,000 ft. of sewer: Contractor 1.092 Inspector 4.935 Pipe layer 4.315…
Contractors' operations · Building
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