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
Other nearby markers. At least 8 other markers are within walking distance of this marker. Great Falls Tavern (a few steps from this marker); Boats Passing By (a few steps from this marker); Washington Aqueduct (within shouting distance of this marker); Creating a National Park (about 400 feet away, measured in a direct line); Olmsted Island (approx. 0.3 miles away); People and the Potomac (approx. 0.4 miles away in Virginia); River of Change (approx. 0.4 miles away in Virginia); A Globally Rare Environment (approx. 0.4 miles away in Virginia). Touch for a list and map of all markers in Great Falls.
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, Maryland. This page has been viewed 193 times since then and 16 times this year. Photos: 1, 2, 3, 4, 5, 6. submitted on January 7, 2017, by Don Morfe of Baltimore, Maryland. • Bill Pfingsten was the editor who published this page.