An underground sewer or open canal for channeling surface runoff (as from a rain storm); distinct from a sanitary sewer
a sewer that carries only surface runoff, street wash, and snow melt from the land In a separate sewer system, storm sewers are completely separate from those that carry domestic and commercial wastewater (sanitary sewers)
A sewer that carries only surface runoff, street wash and snow melt from the land In a separate sewer system, storm sewers are completely separate from those that carry domestic and commercial wastewater (sanitary sewers)