300 Series - Storm Drain Standards

Drawings in this series include:

  • Catch basins
  • Flared end section pipe
  • Grading at drop inlets
  • Minimum drainage easements
  • NCDOT standards approved for use
  • Overlapping of easements
  • Paved ditches
  • Rip rap aprons
  • Rip rap plunge pools
  • Subdrains
  • Trench drains
  • Wingwalls