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Holding Up Bridges

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Bridges and other marine infrastructure raise an important question: just how do engineers build a foundation that's entirely underwater?

This illustration shows an array of driven piles (bottom) beneath a cap and pylon. Both vertical and horizontal forces from the bridge get transmitted down into the piles.

This tabletop model demonstrates a drilled piles, where concrete gets pumped into a casing.

←French Drains

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Celebrating the physics of all that flows

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