Changes

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]]).   

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,

#Seed with turf grass mixture,

#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,