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Ideas for creek crossing
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<blockquote data-quote="greybeard" data-source="post: 1499058" data-attributes="member: 18945"><p>He didn't say how deep the channel is but I suspect if it's fairly deep, It will need more than a couple. Most RR tank cars are 10.8" wide. The total opening area of the installed culverts will need to equal whatever the 60' wide opening flows now, otherwise, water will just back up until it reaches a significant enough level to overtop the new roadway and the flow over the top will just wash out whatever he covered the tank car culverts with.</p><p>A couple of those culverts might work for a moderate flow, but even if the channel is only 4' deep, a full channel flow 60' wide can carry a heck of a lot more water than two 10' 8" diameter culverts can.</p></blockquote><p></p>
[QUOTE="greybeard, post: 1499058, member: 18945"] He didn't say how deep the channel is but I suspect if it's fairly deep, It will need more than a couple. Most RR tank cars are 10.8" wide. The total opening area of the installed culverts will need to equal whatever the 60' wide opening flows now, otherwise, water will just back up until it reaches a significant enough level to overtop the new roadway and the flow over the top will just wash out whatever he covered the tank car culverts with. A couple of those culverts might work for a moderate flow, but even if the channel is only 4' deep, a full channel flow 60' wide can carry a heck of a lot more water than two 10' 8" diameter culverts can. [/QUOTE]
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