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DRAINAGE CRITERIA MANUAL (V. 3) CONSTRUCTION BEST MANAGEMENT PRACTICES <br />SR <br />SURFACE ROUGHENING <br />Definition <br />Provide a rough soil surface with horizontal depressions created by operating a tillage or <br />other suitable lmpk ment on the contour, or by leaving slopes in a roughened condition by no <br />fine-grading them. <br />1. To aid in seed bed preparation and establishment of vegetative cover. <br />2 To reduce runoff velocity and increase infiltration. <br />3. To reduce runoff and wind erosion and provide for sediment trapping. <br />•r :::•: ...: :v •::::.:1:•;. .v. ... •?:i•. ::Y:;:}j.<•r:::?:;?;':''i},:iii'{:5;:•.'::::::•:•r•: .ii:#,v,: •:;.Yr:}:-r:: i7?,?:. <br />S.'?.fxgr.r..v{i?.•i??.`:?.•:•$:4i:•7:i:;:Z;;:S:':i.:' ':<• • .iii; r:{v;. <br />.... }..v :. '':':::,;:: v - •.: [tiff:'} ?}'?^:•::: •.. <br />r.".•.?i?(jYyL ::: r.:: -'; ? r???r.:rM1': }i:•?SiL{L:J:.? ....... : rht;:r...r :. .. . ........ • <br /> <br />............................................................ ... <br />UgllBrdng.i:.ii::ii:'::: .:::::.... ............ rook as an:; <br />energy <br />CIISSI tQr.. <br />. <br />Haul road ^ iy.?, ` {mcr_v +j!? aft <br />•rr irt7:: <br />Tracking :Scarification;: <br />? . .Rods-lined.. _ <br />:channel <br />Perimeter dike +?- ,•, <br />Vegetative buffer <br />From: Environmental Protection Agency, 1976 <br />Figure C4-Surface Roughening <br /> <br />C-22 9-1-99 <br />Urban Drainage and Flood Control District