1. a protective structure built over a road or railway to prevent snow from accumulating on the tracks or roadway

Examples

• The mountain railway required several snowsheds to keep the tracks clear during winter storms.
• Engineers designed the snowshed to withstand heavy snow loads from avalanches.
• The old wooden snowshed was replaced with a modern concrete structure.
• Drivers passed through the snowshed tunnel without realizing the blizzard raging above.
• The snowshed protected the highway from drifting snow in the mountain pass.
• Maintenance crews inspected the snowshed for damage after the severe winter.