Practical Applications of Trash Racks and Anti-Vortex Devices: Agenda

October 14, 2025
12:00 PM - 2:00 PM Eastern

  • Problem Overview  
    • Why are Trash Racks Important
    • Why are Vortices a Concern
  • NRCS Trash Rack Development (in tandem with riser development)  
    • Descriptions and figures of various intakes with anti-vortex and trash rack changes  
    • Model study and/or CFD photos of open risers drawing debris and anti-vortex plate not drawing trash into pipe  
  • USBR, USACE and NRCS guidelines  
    • Design guidance. Pass small trash, catch large trash
  • Q&A Session 1  
  • Examples (CFD Results)  
  • Maintenance Considerations  
  • Heat, Ice, Debris, Rodents challenges
  • Other methods to keep trash away from intake  
    • Debris Booms  
    • Riverbank management  
  • Automatic screen cleaners  
    • Waller Creek Tunnel Intake.  
    • San Antonio River.
  • Section 316(B) of the Clean Water Act  
  • Q&A Session 2