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As seen in the mine plan map and reclamation map, the total distance of the diverted channel is 1962 <br />feet. The initial segment (Segment 1) starts at the tributary channel that is a side canyon to the <br />Carbon Junction Canyon. Shortly downstream from this side canyon, the flows from the diversion <br />will enter the main canyon. Also, the side canyon is sufficiently large and rock-lined so that no <br />armoring of this channel is needed. <br />The fotlowing table shows the design sections of the diversion channel. The Carbon Junction Canyon <br />Map contains the existing and design cross-sections as well as culvert details and concreted section <br />details. <br />Segment Length (feet) Grade (%) Comments <br />#1 333 7.3 Lined Section <br />#2 436 2.19 Lined Section <br />#3 277 5.31 Lined Section <br />#4 84 16.14 Section in Culvert <br />#5 184 9.78 Lined Section <br />#6 648 2.15 Lined Section <br />Total 1962 <br />All segments (except for the culvert) utilize a 14' wide channel and meet the required flow by varying <br />the flow depth and the riprap lining size. All segments use riprap of D50 = 1.00 feet, 1.75 feet or 2.5 <br />feet. Segment 4 is a steep corrugated steel pipe azch culvert under the main access road. Segment 6 <br />is a very mild grade long section around the old fill storage azea. The top of Segment 6 joins with the <br />original Carbon Junction Canyon drainage. All segments will have 0.3 freeboard in addition to the <br />flow depths shown in the design. <br />TR09, TRl l 5-9 Revised 3/9S, S/02 <br />