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Materials used for the Gateway Project. 165,000 cubic yards of concrete. 586,000 cubic yards of earth excavated. 200,000 square yards of lime sub grade aggregate. 63.25 miles of steel pilings. 3 miles of concrete and mechanically stabilized retaining walls. 20 miles of high voltage electrical cable. 7.6 million pounds of reinforcing steel. 9 million pounds of structural steel. 750 trees. 17,600 shrubs, plants and flowers. 46 acres of mulch, topsoil and seeding. |