Exploring Big Slackwater » DSCN2658

'I have no clue what that is.'  T.A.

‘I have no clue what that is.’ T.A.

2 responses to this post.

  1. Posted by Karen Gray on June 10, 2014 at 1:52 pm

    It does keep excess waters out, but the gate at the river end of a culvert through the guard wall leading to the canal below the Inlet/guard lock, was primarily to allow water into the canal when the lock was being operated or its gates all closed for some reason. Many locks have a bypass flume beside the lock that assures a continuous supply of water to the level below the lock. At an inlet, as is the case here, it is especially important to provide for the continuous passage of water. Most inlet locks are not in the mainstem of the canal, but those behind Dams 4 and 5, do. Provision for a continuous feed of water here, above Dam 4 where the canal begins again below Big Slackwater, this system could continuously provide water. At the Inlet Lock at Dam 5, there was no room for such and when the lock gates were closed to fill the lock for a boat, the water below the lock would have been slowly draining away due to the current and a boat waiting might bottom out if the level could not be kept deep enough.


    • Posted by LevelWalker on June 10, 2014 at 6:07 pm


      Thanks for the information. I’m familiar with your expertise regarding the park, and it’s a pleasure having you stop by. I’ve been stumped more than once, and sometimes even Hahn doesn’t have the answer. Thanks for your contribution to our understanding of the C&O Canal.


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