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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
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by waiving all of their rights to the work worldwide under copyright law, including all related and neighboring rights, to the extent allowed by law. You can copy, modify, distribute and perform the work, even for commercial purposes, all without asking permission.
548:{{Information |Description ={{en|1=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.}} |Source ={{own}} |Author =[[User:Bonnachoven|Bonnachov...
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The following pages on the
English Knowledge (XXG) use this file (pages on other projects are not listed):
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I, the copyright holder of this work, hereby publish it under the following license:
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The person who associated a work with this deed has dedicated the work to the
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Click on a date/time to view the file as it appeared at that time.
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copyrighted, dedicated to the public domain by copyright holder
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http://creativecommons.org/publicdomain/zero/1.0/deed.en
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Add a one-line explanation of what this file represents
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Commons is a freely licensed media file repository.
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182:image:Waste_Weir_Open_on_C_and_O_Canal.jpg
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Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
