A Lift Lock
Chesapeake and Ohio Canal National Historical Park
Water was permitted to flow into, or out of, the lock by opening or closing a paddle at the bottom of each lock gate.
(Inscriptions on the left)
1. A boat heading downstream enters the lock. The mules are unhitched and let downstream.
2. The lock gates are closed.
3. The downstream paddles are opened, water flows out, and the boat is lowered.
4. With water levels equal, mules are hitched, and the lock gates are opened, the boat continues downstream.
Erected by National Park Service US Department of Interior.
Marker series. This marker is included in the Chesapeake and Ohio Canal marker series.
Location. 39° 0.013′ N, 77° 14.905′ W. Marker is in Great Falls, Maryland, in Montgomery County. Marker is on MacArthur Blvd.. Touch for map. The marker is near the Great Falls Tavern Visitor Center. Marker is in this post office area: Potomac MD 20854, United States of America.
Other nearby markers. At least 8 other markers are within
Categories. • Waterways & Vessels •
Credits. This page was last revised on January 9, 2017. This page originally submitted on January 7, 2017, by Don Morfe of Baltimore, Md 21234. This page has been viewed 154 times since then. Photos: 1, 2, 3, 4, 5, 6. submitted on January 7, 2017, by Don Morfe of Baltimore, Md 21234. • Bill Pfingsten was the editor who published this page.