"Elevation and Sections of the Capstans, Gearing and Spool, New locks of the Louisville & Portland Canal"
"Elevation and Sections of the Capstans, Gearing and Spool, New Locks of the Louisville & Portland Canal"
Delineated by H. Werner, 1872
Ink and wash on paper with margin tape sewn on
28 1/2" x 49 1/4"
National Archives and Records Administration, Records of the Office of the Chief of Engineers

Louisville & Portland Canal
In 1830 the Louisville and Portland Canal, a 50-foot-wide, man-made waterway opened for traffic. It allowed river boats to bypass the falls on the Ohio River at Louisville, Kentucky. After the Civil War, the U.S. Army Corps of Engineers widened the canal to 90 feet and made other improvements. This drawing shows the new lock mechanisms.

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