Sheet pile cofferdams to solid rock were used for constructing the foundations. [Please select]
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These dump boxes were hinged longitudinally and discharged directly into the cofferdams. [Please select]
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The cost of this marsh excavation including cofferdams, underdraining, pumping, etc. [Please select]
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The grade of the temporary track carried the push cars by gravity to the cofferdams and they were returned by teams, for which purpose a straw and brush road had been built paralleling the track. [Please select]
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