Laserfiche WebLink
Figure 11-4.2.19 Sediment Pond Cross Section <br />Crest of <br />Riser pipe <br />emergency spillway 6' Min. width. <br />(principal spillway) <br />open at top with <br />trash rack <br />II'Min. <br />Dewatering device <br />(see riser detail) <br />d�-. <br />Discharge to <br />_- _- ___ _- — d <br />_ _ _ _ _ _ _ = f stabilized <br />1.5' <br />�____r- <br />�. conveyance outlet <br />or level spreader <br />Wire -backed silt fence <br />staked haybales <br />wrapped with filter fabric, <br />or equivalent divider <br />�r <br />DEPARTMENT OF <br />ECOLOGY <br />State of Washington <br />Dewatering J <br />orifice <br />Concrete base <br />(see riser detail) <br />Embankment '' �• <br />compacted 95% <br />pervious materials <br />such as gravel or clean <br />sand shall not be used <br />NOT TO SCALE <br />Figure 11-4.2.19 <br />Sediment Pond Cross Section <br />Revised November 2015 <br />Please see http://www.ecy.wa.gov/copyright.html for copyright notice including permissions, <br />limitation of liability, and disclaimer. <br />2014 Stormwater Management Manual for Westem Washington <br />Volume 11 - Chapter 4 - Page 392 <br />