Place

C&O Canal Lock 63

Quick Facts

Scenic View/Photo Spot

Along the 184.5 miles of the canal are 74 lift locks. These locks were put into place to help boats overcome the 605-foot elevation change between Georgetown and Cumberland. The C&O Canal is like a staircase, canal boats traveled along the flat sections and used the locks to take a “step up or down” about eight feet. The locks typically had hand-operated miter gates that were simple and followed Leonardo da Vinci’s original 1485 design. Entering the lock was the most demanding part of canalling.  

Lock 63 1/3 is the 6th of the upper 13 locks that was constructed as a “composite lock”, or a lock made with more than one material. It is made of kyanized (treated) wood and uncut stone. Some of the lock was eventually replaced with concrete. 

On the other side of the lock is a bypass flume that allowed water to bypass the lock to water the level below.

The odd numbering of this lock is a result of Lock 65 never being built. The Canal Company eliminated Lock 65 to reduce costs and used the fractions as documentation of the gap in the lift lock numbering system, while still allowing the upstream lock numbers to remain. Locks 62, 63 1/3, 64 2/3, and 66 have a 10’ lift to make up for the elimination.

There are no lockhouse remains at this location.

Chesapeake & Ohio Canal National Historical Park, Potomac Heritage National Scenic Trail

Last updated: October 10, 2024