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Lift Locks

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  • July 04, 2014

Lock 20 is one of 74 such structures along the C&O Canal that were designed to lift and lower canal boats as the elevation changed. After a boat is loaded and all gates closed, the chamber can be either flooded or drained via butterfly valves at the bottom of the gates.

Milepost 14.4

Lift Locks
Photo Credit: C&O Canal Trust