| Address: | Clear Spring, MD 21722, USA |
|---|---|
| Postal code: | 21722 |
| Phone: | (301) 739-4200 |
The dry-dock at Lock 47 was constructed about 1852 by Thomas J. Hassett (Mastrangelo1987:10). It was used to repair canal boats. Located on the berm side of the bypass flume, the dry-dock ran parallel to both the lock and the flume. It had battered dry-laid stone sidewalls, with stop-plank slots at the lower end. The width of the dock at the top was 26 feet and 21 feet at the bottom. It was 103 feet long with an upper wall of a roughly-coursed limestone.
Current Condition
The dry-dock is now little more than a wide ditch. Little evidence of the side walls exist and it is filled with vegetation and silted in. There remains some stonework at the lower end. National Park Service, Cultural Landscapes Inventory, Four Locks Chesapeake and Ohio Canal National Historical Park, 2008
The Four Locks Community. ... after which the gate would be closed and a sluice gate opened at the downstream end to drain the dry dock. The boat would settle down on ...
drain the dry dock. The boat would settle down on raised beams as the water level dropped, allowing workmen to crawl under as well as around the boat to make the necessary repairs. Located over the flume next to lock 47, this dry dock was kept busy with minor and major repairs. Done quickly and efficiently, canallers were able to continue their
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