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Avalanche snow bridge: Difference between revisions

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#REDIRECT [[Avalanche control#snow shed]] {{R from merge}}
:''See [[snow bridge]] for another meaning''
An '''avalanche snow bridge''' or simply '''snow bridge''' is a type of rigid [[snow-supporting structure]] for [[avalanche control]] ([[avalanche defense]]). [[Avalanche]] bridges can be made of [[steel]], [[prestressed concrete]] frames, or [[timber]].<ref>[http://www.fao.org/DOCREP/006/AD075E/AD075e09.htm Photographs of avalanche defences], [[FAO]] corporate document repository</ref> <ref>[http://www.fao.org/docrep/x5376e/x5376e04.htm "Avalanche and torrent control in the Spanish Pyrenees"]</ref>

Snow bridges may superficially look similar to [[snow fence]]s, but they act differently. Snow fences are built vertically and accumulate snow on their downwind side, while snow bridges are slanted or horizontal hold snow on their top side.

Snow bridges are fastened to the slope on the upslope side by tension anchors and on the downslope by compression anchors. <ref>[http://www.mairwilfried.it/index.php?id=33&lang=en "Steel snow bridges"]</ref>

==See also==
*[[Avalanche dam]]
*[[Avalanche net]]

==References==
<references/>

[[Category:Bridge]]
[[Category:Avalanche safety]]

Latest revision as of 19:14, 22 September 2020

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