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Ditching with dynamite is I useful practice under many conditions, says E. B. Hale, Igticultural engineer at Virginia Polytechnic Institute. It may be done wheri water or obstruct •tions make machine operations difficult.
Also, there is' no spoil bank that must be spread later. The ditch is completed quickly and there is no heavy equipment overhead cost. The cost is usually equal to oy less than machine work pn small jobs.
Skills needed for ditching with dynamite are not diffi
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