Drain Inserts

Drain insert BMPs help protect our local waterways by capturing trash and debris before they enter the storm drain system.

As water flows through the insert filter, larger debris is captured and stored until it is removed during maintenance. These inserts are commonly installed within storm drain inlets throughout the County.
 

Benefits

Drain Inserts may offer the following benefits:

  • Capture sediment, trash, and debris
  • Can be easily accessed for inspection and maintenance

 

What does your BMP look like?

Typical drain inserts include manufactured filters, fabrics, or screens that are placed in inlets to capture trash and debris. 

The shape and configuration of drain inserts vary based on inlet type and configuration.
 

Target Pollutants

 
  • Sediment (soils particles, road dust, gravel, sand, etc.)
  • Debris
  • Trash
     

Inspection & Maintenance Activities

Activity Suggested frequency/schedule
Remove captured sediment, trash, and debris As needed and after significant rain events and as necessary
Inspect and replace (if needed) all filter components, including housing unit, filter screens, and/or filter media) Prior to the rainy season, and after significant rain events
Verify that stormwater enters the unit and does not leak around the perimeter After significant rain events


BMP Fact Sheets in PDF format

Structural BMP Outreach Flyers (Educational Resources Page)
 

Contact

  (858) 495-5323

  BMP.Program@sdcounty.ca.gov

 

 

Maintaining My Structural BMP Home Page