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tenebrous
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Reged: 09/11/02
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Posts: 413
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Loc: Geneseo, New York
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Need to build a bridge
07/08/04 09:05 AM
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I need help in the design of a 20 to 25 foot bridge to cross a small stream. There is a culvert there now but the pipe is too small and the road way washes out in heavy rain run off.
The search for a plan for a truss bridge made from possibly white oak has not yielded a plan. The general design can be a king truss, warren truss or other but what I need is the specs of the beam sizes if I use the oak or pressure treated pine to build up beams. Steel is always a fall back but my son and I would like to build it out of wood.
A three ton capacity would do the trick for tractor and attachments. Does anyone have sources for a plan or any suggestions that might help?
Thanks,
Tim
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mysticokra
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Silver Member
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Reged: 03/14/03
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Posts: 168
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Loc: Jackson County, Al
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Re: Need to build a bridge
[re: tenebrous]
07/08/04 09:15 AM
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Look at http://www.buildeazy.com/plan_links_bridges.html
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tenebrous
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Gold Member
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Reged: 09/11/02
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Loc: Geneseo, New York
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Re: Need to build a bridge
[re: mysticokra]
07/08/04 02:20 PM
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Thank you,
Found these too, but need one that is more than a footbridge and flat.
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beenthere
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Reged: 09/30/02
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Loc: midwest
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Re: Need to build a bridge
[re: tenebrous]
07/08/04 10:38 PM
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Do a search on "timber bridge". There are a number of resources.
One is
http://www.tfhrc.gov/structur/struc98/ch4set.htm
There has been a large timber bridge program ongoing for the last several years in the Forest Service and other private agencies.
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slapshot
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Reged: 07/21/04
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Posts: 54
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Loc: Troy, Missouri
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Re: Need to build a bridge
[re: beenthere]
07/29/04 11:28 AM
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The University of Minnesota Extension has a decent artilce on how to construct a Log Stringer Bridge.
http://www.extension.umn.edu/distribution/naturalresources/DD7005.html
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tenebrous
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Loc: Geneseo, New York
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Re: Need to build a bridge
[re: slapshot]
09/20/04 09:06 AM
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Sorry that I am so late responding to your post. The bridge site was a big help planning our bridge. Our problem now is all the rain this summer has held up construction.
Thank you,
Tim
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