Along both banks of the river there are hundreds of wingdams or weirs, running perpendicular to the river. These are an attempt to stop what Mother Nature intends for the river. The weirs underwater, at various depths, and are designed to deflect the river current toward the center of the river, to prevent erosion of the river banks and curtail shoaling of the channel. Because the river level has such variation, mariners cannot be sure of the depth of water – if any – over these weirs. So we stayed close to the middle and on the “sail line” recommended on our charts.
Tuesday, October 27, 2009
October 24, 2009 - Little Diversion River, Missouri
Along both banks of the river there are hundreds of wingdams or weirs, running perpendicular to the river. These are an attempt to stop what Mother Nature intends for the river. The weirs underwater, at various depths, and are designed to deflect the river current toward the center of the river, to prevent erosion of the river banks and curtail shoaling of the channel. Because the river level has such variation, mariners cannot be sure of the depth of water – if any – over these weirs. So we stayed close to the middle and on the “sail line” recommended on our charts.
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