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.