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Preppers' Corner
Prepper engineering: card #2 - The Bridge
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<blockquote data-quote="Johnjosiah" data-source="post: 2698148" data-attributes="member: 8177"><p>seems like you would have to move several yards of dirt for a 6 foot drop to make a decent slope. like 125cubic feet for 6 foot wide 60 degree slope???... been awhile since trig. I would want to use at least 16 foot long post to span 12 feet. this is hairy to...seems it would sag a lot in the middle. might try to lash some post together that would cross but not sure I could lift anything heavy duty enough to hold atv and 2 people. Next would be dig a partial slope then use post to angle to the bottom then repeat the other side. Lash the bottom ends and use side of dug hole to hold post in place at top. Nothing seems too good so far. I'll have to keep thinking. Center support to span the whole thing would help but engineering might be tougher.</p></blockquote><p></p>
[QUOTE="Johnjosiah, post: 2698148, member: 8177"] seems like you would have to move several yards of dirt for a 6 foot drop to make a decent slope. like 125cubic feet for 6 foot wide 60 degree slope???... been awhile since trig. I would want to use at least 16 foot long post to span 12 feet. this is hairy to...seems it would sag a lot in the middle. might try to lash some post together that would cross but not sure I could lift anything heavy duty enough to hold atv and 2 people. Next would be dig a partial slope then use post to angle to the bottom then repeat the other side. Lash the bottom ends and use side of dug hole to hold post in place at top. Nothing seems too good so far. I'll have to keep thinking. Center support to span the whole thing would help but engineering might be tougher. [/QUOTE]
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