A street gutter is the shallow channel along the edge of a road, designed to collect and direct surface water runoff (such as rainwater or melted snow) toward storm drains. Cyclists and pedestrians should avoid traveling too close to the gutter due to debris or slippery surfaces.
Person pressure washes a storm drain during routine maintenance. (South Dakota, United States) © Wikimedia.org/Airman 1st Class Alystria Maurer, CC0