Laserfiche WebLink
Curb and Gutter Sediment Barrier <br /> Curb and gutter sediment barrier is a sandbag or rock berm(riprap and aggregate)3 feet high and 3 <br /> feet wide in a horseshoe shape. See Figure 11-3.19: Curb and Gutter Barrier. Design and installation <br /> specifications for curb and gutter sediment barrier include: <br /> • Construct a horseshoe shaped berm,faced with coarse aggregate if using riprap,3 feet high <br /> and 3 feet wide, at least 2 feet from the inlet. <br /> • Construct a horseshoe shaped sedimentation trap on the upstream side of the berm.Size the <br /> trap to sediment trap standards for protecting a culvert inlet. <br /> 2019 Storm water Management Manual for Western Washington <br /> Volume II-Chapter 3-Page 363 <br />