Pylons
• Each pylon tower rises over 600 feet above the river, with a column that tapers as it ascends . • The lower tower sections include over 4,300 cubic
yards (≈8,600 tons) of reinforced concrete for strength and stability.
• The towers are connected by two concrete cross- beams (each 20' x 20' and 95 feet long ): the lower bean is solid , and the upper beam is hollow with 2-foot-thick walls . • Each pylon tower is constructed in 31 concrete lifts , each 15–20 feet tall.
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