Unmanaged sidewalk runoff can cause substantial local erosion, overwhelm curbside gutters, and lead to standing water on private property. NYC properties are designed to channel runoff directly into municipal street gutters and catch basins. Property owners can optimize runoff management by ensuring their sidewalks are graded properly and by integrating porous materials, well-sized tree pits, or green spaces that capture and slow down water flow before it hits the street.
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