Drainage Maintenance

Press Enter to show all options, press Tab go to next option

To report a drainage, maintenance, or flooding issue, call 910.341.4646

In Wilmington, stormwater runoff is channeled through a complex system of storm drains, pipes, ditches, ponds, culverts, creeks and wetlands which flow straight into our waterways. Stormwater Services field crews perform maintenance of the storm drainage system within the public right-of-way or in accepted easements.

Stormwater Services Field Crews maintain:

  • 41 miles of ditches manually
  • 200 miles of open drainage (ditches, creeks, channels)
  •  220 miles of pipe
  • 12 miles of culverts under roads
  • 9000 catch basins and manholes
  • Greenfield Lake, Love Grove Tidegates
  • 70+ city-owned Stormwater BMPs (Kerr Avenue Wetland, Park Avenue Bioretention Area, Wade Wetland, etc) 
  • 145 acres of retention ponds
  • 336 bi-annual inspections of private retention ponds

Maintenance Field Crews

Street Sweeping Crew

Sweep 430 miles of curbed City streets and 120 miles of North Carolina DOT streets,public parking lots and when required, non-curbed streets. Private streets are the responsibility of the Homeowner's Association or Developer. This crew also inspects and removes blockages from the stormwater drainage system.


BMP Maintenance Crew

Maintain70+ stormwater BMPs (Best Management Practices) including constructed wetlands, bioretention areas, retention ponds, and stabilizing stream banks.  



Open Drainage Crew

Perform routine mowing, ditch cleaning and erosion control activities of drainage ditches, creeks, lakes and ponds, as well as sediment removal and control of nuisance aquatic weed growth. 


Closed Drainage Crew

Perform inspection, maintenance, repair and construction of underground pipes, manholes, catch basins, junction boxes and headwalls, as well as deep excavations requiring the use of trench boxes. Crews inspect stormwater pipes using cameras and perform internal pipe repairs using confined space entry protocols.



Free viewers are required for some of the attached documents.
They can be downloaded by clicking on the icons below.

Acrobat Reader Flash Player QuickTime Windows Media Player Microsoft Silverlight Word Viewer Excel Viewer PowerPoint Viewer