Calculate how long will it take to excavate a ditch 1500 feet long by 8 feet deep with a bottom width of 4 feet at 35 cubic yards per hour. The sides of the ditch above 5 feet are sloped outward at a 45 degree angle.
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windy city oil field, karamay, xinjiang, China
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Laying plastic pipes drainage to drain the water around the house of drainage system
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Concrete cube or construction brick and trowel. Construction concept and mason
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Joyful young man construction worker holding mobile phone and smiling while standing by the table with laptop
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