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road alignment. While the haul road was never completed, it is included for <br />completeness purposes since the alignment is referenced on both Exhibit 12-1 <br />(Revision 9, dated 6/99) and Exhibit 12-2 (Revision 5, dated 8/99). <br />Sediment and Water Control Facilities Plan <br />There are no proposed changes to either existing sediment pond design or <br />configuration. <br />Small Area Exemptions <br />There are not proposed changes to any of the approved small area exemptions. <br />Diversion Ditches <br />The only existing diversion ditch that will be modified is Ditch 5. The <br />location of Ditch 5 is shown on Exhibit 12-2 (Revision 5, dated 8/99). <br />SEDCAD+ was used to design the ditch. The design is summarized in Table 12- <br />1.1 Ditch and Culvert Summary, the design demonstration is found in <br />Attachment 12-1A, Ditch and Culvert Design. <br />TABLE 12-1.1 <br />Ditch and Culvert Summary <br />DITCHES <br />Ditch Flow slope Bottom Side Velocity Flow Freeboard Total Liner <br /> (cfs) (~) Width Slope (fps) Depth (ft) Ditch Type <br /> (ft) (H:1V) (ft) Depth <br /> (ft) <br />Ditch 5 0.82 9.0 v 2 9.06 0.32 0.3 0.62 gravel <br />There only is one change to the existing culverts. 'Culvert LFC-9 will be <br />replaced with a longer pipe. The existing pipe is 28 feet long while the <br />replacement pipe will be 72 feet long. The diameter will remain 36 inches. <br />Culvert LFC-5, which is show on Exhibit 12-2 (Revision 5, dated 8/99) is <br />proposed. Because this culvert is proposed, and has not been constructed, <br />the design is not included in Attachment 12-1A. <br />TR-07 2 Revised 06/06 <br />