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As seen in the mine plan map and reclamation map, the total distance of the diverted channel is <br />1962 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 following table shows the design sections of the diversion channel. The Cazbon Junction <br />Canyon Map contains the existing and design cross-sections as well as culvert details and concreted <br />section 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 <br />varying the flow depth and the riprap lining size. All segments use riprap of D50 = 1.00 feet, 1.75 <br />feet or 2.5 feet. Segment 4 is a steep corrugated steel pipe arch culvert under the main access road. <br />Segment 6 is a very mild grade long section azound the old fill storage area. The top of Segment 6 <br />joins with the original Cazbon Junction Canyon drainage. All segments will have 0.3 freeboazd in <br />addition to the flow depths shown in the design. <br />TR09, TRl1 5-9 Revised 3/98, 8/02 <br />