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4� <br /> L <br /> R , <br /> Schedule and perform clearing and grubbing so that grading operations can follow <br /> immediately thereafter . Schedule and perform grading operations so that permanent erosion <br /> control features can follow immediately thereafter if conditions on the project permit . <br /> 104-6 .4 Details for Temporary Erosion and Sediment Control Features : <br /> 104-6.4 . 1 General : Use temporary erosion, sediment and water pollution control <br /> features found in the E& SC Manual . These features consist of, but are not limited to , temporary <br /> turf, rolled erosion control products , sediment containment systems , runoff control structures , <br /> sediment barriers , inlet protection systems , silt fences , turbidity barriers , and chemical treatment . <br /> For design details for some of these items, refer to the Design Standards and E&SC Manual . <br /> 104-6 .4 . 2 Temporary Turf: The Engineer may designate certain areas of turf or <br /> sod constructed in accordance with Section 570 as temporary erosion control features . For areas <br /> not defined as sod, constructing temporary turf by seeding only is not an option for temporary <br /> erosion control under this Section . The Engineer may waive the turf establishment requirements <br /> of Section 570 for areas with temporary turf that will not be a part of the permanent construction . <br /> 104-6 .4 .3 Runoff Control Structures : Construct runoff control <br /> structures in accordance with the details shown in the plans , the E& SC Manual , or as may be <br /> approved as suitable to adequately perform the intended function . <br /> 104-6 .4 .4 Sediment Containment Systems : Construct sediment containment <br /> systems in accordance with the details shown in the plans , the E & SC Manual , or as may be <br /> approved as suitable to adequately perform the intended function . Clean out sediment <br /> containment systems as necessary in accordance with the plans or as directed . <br /> 104-6 .4 . 5 Sediment Barriers : Provide and install sediment <br /> barriers according to details shown in the plans , as directed by the Engineer, or as shown in the <br /> E& SC Manual to protect against downstream accumulation of sediment. Sediment Barriers <br /> include , but are not limited to synthetic bales , silt fence , fiber logs and geosynthetic barriers . <br /> Reusable barriers that have had sediment deposits removed may be reinstalled on the project as <br /> approved by the Engineer. <br /> 104-6 .4 . 6 Silt Fence : <br /> 104-6 .4 . 6. 1 General : Furnish, install , maintain, and remove silt fences , in <br /> accordance with the manufacturer ' s directions , these Specifications , the details as shown on the <br /> plans, the Design Standards , and the E&SC Manual . <br /> 104-6 .4. 6. 2 Materials and Installation : Use a geotextile fabric made <br /> from woven or nonwoven fabric , meeting the physical requirements of Section 985 according to <br /> those applications for erosion control . <br /> Choose the type and size of posts , wire mesh reinforcement (if <br /> required) , and method of installation . Do not use products which have a separate layer of plastic <br /> mesh or netting . Provide a durable and effective silt fence that controls sediment comparable to <br /> the Design Standards and the E& SC Manual . <br /> Erect silt fence at upland locations , across ditchlines and at <br /> temporary locations shown on the plans or approved by the Engineer where continuous <br /> construction activities change the natural contour and drainage runoff. Do not attach silt fence to <br /> existing trees unless approved by the Engineer . <br /> 104-6 .4 . 6.3 Inspection and Maintenance : Inspect all silt fences <br /> immediately after each rainfall and at least daily during prolonged rainfall . Immediately correct <br /> any deficiencies . In addition, make a daily review of the location of silt fences in areas where <br /> rr <br /> construction activities have changed the natural contour and drainage runoff to ensure that the <br /> - 39 - <br /> FPID (S ) : 423186 - 1 - 58 -01 <br />