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Erosion controls include -ANSWER--diversion
-project sequencing
-slope drains
-vegetative cover
-rolled erosion-control products
-rock ditch checks
Diversion is -ANSWER-at type of erosion control which removes or diverts flow
from going across the earth disturbed area
project sequencing is -ANSWER-a type of erosion control that delays clearing and
grubbing operations until absolutely necessary (which means the existing
vegetation holds everything in place longer)
slope drains are -ANSWER-a type of erosion control where water is channeled to a
pipe. Effective for raindrop, rill and gully erosion
rolled erosion-control products are -ANSWER-a type of erosion control where
water is dissipated. keeps rill and raindrop erosion from getting worse
rock ditch check is -ANSWER-used in ditches and channels to slow the velocity of
concentrated flows (at type of erosion control)
, Sediment controls include -ANSWER-- perimeter sheet flow controls
- sediment traps
- inlet protections
- ditch checks
perimeter sheet flows -ANSWER-hold water and release it slowly
perimeter sheet flows include -ANSWER-hay, filter fabric fence, compost filter
socks
sediment traps are used to -ANSWER-intercept flows and hold water
inlet protections include -ANSWER-filter fabric fencing around the catch basin or
inlet to pound water and allow for settlement
ditch checks are -ANSWER-installed using filter fabric fence to allow for ponding
and settlement to occur in low-flow ditch lines
permanent controls include -ANSWER-final seeding
rock protection
concrete caps
rentention or detention basins
In clay, the angle of internal friction is -ANSWER-ZERO