Back Cove Combined Sewer Overflows
Owner: City of Portland Partner: Sargent Corporation Type: Excavation Support Location: Portland, Maine Project Description: Drove 1.8 million pounds of sheet pile up to 98 feet deep; installed 1.3 million pounds of internal framework. Challenge: The combined sewer overflow storage tank required excavating 36 feet below grade in soft soils next to an existing highway…
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