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Trenching

New Specifications

  • Trencher must be over-backfilled, mechanically compacted, and level full when completed.
  • Smiles and J-hooks must be employed to pond water and sediment.

EVTEC (EPA co-sponsored research)

  • Very poor results from standard trench installation
  • Difficult to obtain compaction when posts installed first
  • Very inefficient when compared to slicing
  • Change specifications for trenching to specific requirements for backfilling and compaction

Click here - to view Evtec research on the installation of silt fence using the tommy static slicing method.

 

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