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Catchment-Basin Cleanout

catchment basin cleanout post fire
catchment basin clean out equipment example

 

What – Mechanical equipment is used to clean out organic debris and sediment deposits in stream channels, above culverts, and in catchment basins ahead of anticipated runoff events.

Purpose – To prevent organic debris and sediment deposits from becoming mobilized in debris flows and flood events.  Intended to protect transportation and facility infrastructure. 

Effectiveness – No quantitative effectiveness monitoring data is available on catchment basin cleanout.  However, anecdotal information suggested the treatment is effective.

Where

  • Locations where cleanout can be done prior to the first damaging rain.
  • Road crossings where existing sediment reduces culvert capacity.
  • Areas with high values-at-risk.

Cost – $200–2000 for each basin.  Additional factors include:

  • Amount of material that is removed
  • Location and access

How to Link – See USDA BAER Catalog page 145 (PDF page 153).