For eight hours, a flotilla of mixer trucks will unload 750 cubic yards (573.4cu meters) of concrete into a channel 25-feet (7.62 meters) wide, 86-feet long and 10-feet deep at a reconditioned warehouse on a former US Navy base in North Charleston.

“You only get one shot to get such a massive pour right,” says Matt Hartig, senior project manager at Choate Construction, which is building the $98m facility at what is now part of the Clemson University Restoration Institute.

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