Street gutter
From Wikipedia, the free encyclopedia
A street gutter is a depression running parallel to a road designed to collect rainwater flowing along the street and divert it into a storm drain. Where a curbstone is present, a gutter may simply be formed by the convergence of the road surface and the vertical face of the sidewalk; otherwise, a dedicated gutter surface made of concrete may be present. A gutter alleviates water buildup on a street, allowing pedestrians to pass without walking through puddles and reducing the risk of hydroplaning by road vehicles.
Not all streets have gutters, and they are most often found in areas of a city which experience high pedestrian traffic. In past centuries when urban streets did not necessarily have sanitary sewers, gutters were made deep enough to serve.
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