Laserfiche WebLink
Erosion Control — embankment stabilization Supat <br /> and sedimentation control. <br /> The high cost of traditional methods of erosion and burlap have all proven restrictive,unreliable and <br /> control,along with their unpredictable performance, costly. A properly designed embankment may re- <br /> have prompted engineers to select geotextiles, quire numerous layers of aggregate to insure that soil <br /> Efforts to utilize other techniques such as multi- erosion is minimized. By properly using Supac, often <br /> layered aggregate filters beneath riprap, haybales only two layers of aggregate are required. <br /> Riprap <br /> it-•!lam <br /> Water level <br /> Supac Geotextile <br /> Bedding blanket .` '�i.";+ }' <br /> + }? <br /> Supac nonwoven fabrics under revetments effectively reduce Silt fence constructed with Supac effectively retains the majority of <br /> undermining of the embankment due to wave action. the soil particles and prevents their migration into surface streams and <br /> adjoining properties. <br /> Supac installation procedure. <br /> Embankment stabilization — For streambanks Sedimentation control — UV stabilized Supac <br /> and other slopes with light wave action, the revet- geotextile is attached to a support <br /> ment material may be placed direct on to of the duginto <br /> structure <br /> N p (normally wire mesh) and a trench dug into the soil <br /> Supac fabric. For coastal locations where there is so the bottom six inches of the geotextile can be <br /> severe wave action,the geotextile should be covered toed-in. Toe-in prevents silt from seeping under the <br /> with a three- to six-inch bedding layer prior to the sedimentation control fence.Vertical posts to attach <br /> placement of the riprap.Supac fabric should be toed the support structure are usually placed at six-foot <br /> in at the top and bottom for maximum safety. intervals. <br /> i <br /> i <br /> I <br /> i <br /> 7 <br />