Laserfiche WebLink
6'-0" MAX.3'-0"10"Flow 1'-6"MIN.Metal, Synthetic, or <br />Wood Post (2"x2") <br />Ground Line <br />Geotextile Fabric <br />8" 1 <br />6'-6" <br /> 1 <br />Roadway <br />Fill Slope <br />Roadway <br />Fill Slope Silt Fence <br />R/W <br />Channel <br />R/W <br />Silt Fence <br />Fabric <br />(Extends into Trench) <br />Grade <br />4"x8" Min. Trench <br />w/Backfill Post (Min. 18" <br />Above Grade) <br />STAKE INSTALLATION <br />ELEVATION JOINING FENCES <br />SILT FENCE PLACEMENT <br />RELATIVE TO R/W LINE <br />SILT FENCE PLACEMENT WITH <br />CHANNEL IN RIGHT-OF-WAY <br />TIEBACK DETAIL <br />Flow <br />Silt FenceTieback Between Fence <br />Post and Anchor <br />Anchor Stake <br />Min. Length 1'-6" <br />Note: <br />The spacing of the tiebacks shall equal the <br />spacing of the posts. Additional post depth <br />or tiebacks may be required in unstable soils. <br />6/26/18 <br />CITY OF SOUTH BENDItemRevision <br />STANDARD <br />EFFECTIVE DATE: <br />REF STD SPEC SEC <br />APPROVED/REVISED BY THE BOARD OF PUBLIC WORKS <br />STANDARDS FOR DESIGN <br />AND CONSTRUCTION <br />Kara M. Boyles, Ph.D., P.E. Date <br />TEMPORARY SILT FENCE 7-4 <br />7-1, 7-2 <br />June 26, 2018 <br />SECTION 7 - EARTHWORK & EROSION AND SEDIMENT CONTROL <br />INSTALLATION: <br />1. Install fencing parallel to slope contour by digging a minimum 8" deep x 4" width <br />trench along proposed fence line. Pound posts in trench 6"-8" or until secure. Be sure <br />to stretch fabric taut when pounding posts. Fabric to be placed on up slope side of <br />posts. Drape loose end of geotextile fabric into trench. Backfill and compact soil on <br />both sides. <br />2. Join fences by placing the end post of the second fence inside the end post of the first <br />fence. Rotate both posts at least 180° in a clockwise direction to create a tight seal <br />with the fabric material. Drive both posts about 10" into the ground and bury flap. <br />3. Turn ends of fence up slope such that point of contact between ground and bottom of <br />fence end terminates at higher elevation than top of fence at lowest point. <br />MAINTENANCE: <br />1. Inspect within 24 hours following each <br />1 2" (Min.) rain event and at least once every <br />seven days. If fence fabric tears, starts to decompose, or in anyway becomes <br />ineffective, replace the affected portion immediately. <br />2. Remove deposited sediment when it is causing the filter fabric to bulge or when it <br />reaches one-half the height of the fence at it's lowest point. When the contributing <br />drainage area has been stabilized, remove the fence and sediment deposits, grade the <br />site to blend with the surrounding area and stabilize. <br />Dimensions will vary based on right-of-way availability. Silt fence shall be placed as close as possible to edge of <br />construction limits. 10' minimum beyond toe of slope is recommended to provide broad, shallow sediment pool. <br /> 1