Image: Waste Weir Closed on C and O Canal

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Description: Waste weir (near Lock 20) on Chesapeake and Ohio Canal. Paddle valves are closed, boards are put in, so that the level (canal pound) be full. Boards determine height of water in the level (Canal Pound), since excess water spills over the top of the uppermost board. See image:Waste_Weir_Open_on_C_and_O_Canal.jpg for this same waste weir, open.
Title: Waste Weir Closed on C and O Canal
Credit: Own work
Author: Bonnachoven
Usage Terms: Creative Commons Zero, Public Domain Dedication
License: CC0
License Link: http://creativecommons.org/publicdomain/zero/1.0/deed.en
Attribution Required?: No

Image usage

The following page links to this image:

Chesapeake and Ohio Canal

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