flashboard(redirected from stop log)
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A board or structure of boards extending above a dam to increase its capacity.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
(Civil Engineering) a board or boarding that is placed along the top of a dam to increase its height and capacity. Also called: stop log or stop plank
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014