Coffer Dam and Aqueduct Connection

They didn’t actually stop the river, of course, but they did divert the flow to a side bank to permit the deep excavation that would be required to expose the bedrock some sixty feet below the riverbed.

 The River in the Box

A wooden flume would carry the river for nearly the nearly five years it would take for the masonry to rise high enough to permit the river to be released.

Dam Site: Coffer Dam and Conduit to the Aqueduct

Engineer’s Corner…How They Stopped the River

Before There Was A Dam

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