(ˈsnəʊˌʃɛd) n (Railways) a shelter built over an exposed section of railway track to prevent its blockage by snow
snow•shed
(ˈsnoʊˌʃɛd)
n. a structure, as over an extent of railroad track, for protection against snow. [1865–70, Amer.]
snowshed
enUK
snowshed
[′snō‚shed] (civil engineering) A structure to protect an exposed area as a road or rail line from snow. (hydrology) A drainage basin primarily supplied by snowmelt.