Keywords: Lock 23 Violettes Lock and Guard Lock no 2 C and O Canal.jpg en Violette's Lock No 23 on right with Guard Lock 2 on left on Chesapeake and Ohio Canal The NPS site http //www hscl cr nps gov/insidenps/report asp STATE PARK CHOH STRUCTURE SORT RECORDNO 183 says Built in 1830 Lock 23 has an 8'6 lift and is 90' -11 long It had a masonry bypass on either side of the upper lock pocket with 3 outlets into the lock below It is constructed of smoothly cut and evenly coursed Seneca red sandstone unlike the Inlet Lock ™s rough cut and coursed stone At some point Lock 23 was raised 40 ™ at the upper end to protect the canal below from high water as was Inlet Lock 2 The lower lock gates were replaced by NPS with modern replicas; there are no upper gates A modern vehicular bridge is located at mid-lock own Bonnachoven Chesapeake Ohio Canal National Historical Park Locks water transport Cc-zero |