Turf reinforcement mats (TRM) may be required in swales which are designed to convey higher velocity events. Most TRM are made of synthetic fibres and intended as a permanent part of the construction (unlike a temporary [[Erosion control blankets| erosion control blanket]]).
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Turf reinforcement mats (TRM) may be required in [[swales]] which are designed to convey higher velocity events. Most TRM are made of synthetic fibres and intended as a permanent part of the construction (unlike a temporary [[Erosion control blankets| erosion control blanket]]).
Mats should be applied with soil fill technique:
Mats should be applied with soil fill technique:
#Grade the swale and smooth the top soil, removing any debris and large rocks,
#Grade the swale and smooth the top soil, removing any debris and large rocks,
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#Seed with turf grass mixture,
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#Seed with [[turf]] grass mixture,
#Dig 150 mm anchor trench at the top of the channel,
#Dig 150 mm anchor trench at the top of the channel,
#Secure blanket into the trench with staples every 300 mm. Backfill and compact soil into the trench,
#Secure blanket into the trench with staples every 300 mm. Backfill and compact soil into the trench,