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Delaware Department of Transportation

Stormwater Management

Streets and Highways

DelDOT uses street sweeping as a tool to decrease litter, debris, and sediment that can clog storm drains and be carried into a nearby waterbodies. DelDOT conducts a targeted street sweeping approach that includes the following:

  • Interstates, expressways, and principal arterials are swept at a minimum of four times per year.
  • Major and minor collector roads are swept at a minimum of twice per year.
  • Local roads are swept at a minimum of once per year.

Sweeper vehicles are equipped with automatic vehicle location (AVL) devices to help verify that the required sweeping frequency has been met.

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