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<br />TABLE 13-6-i. Summary of Watershed Pa rame[e rs and Design Sta trs[a cs for Haul Road Di[ches <br />Within the Perml[ Area Including Mine Entrance Road, <br />Seneca II-W Mine, Routt County, Colorado. <br />Watershed Pa rame[e rs H ydraulic Design Parameters <br /> Eleva[ren Pea Y. Discharge Average Flow eo[tom <br />Drainage Area Length Difference 10-Yr., 29-Hr. Slope Depth Velocr[y Witl[h <br />Di CCh No. (ACl iMi) (FL1 CN Stotm ICFS) (FC/Ftl IF[) (FPS) Type (FC) <br />HRD-A1 20. 4 0.79 300 06 19 .2 0. 056 0 .91 5. 75 V --- <br />HRD-A2ME5 6. 9 1.18 305 89 3 .85 0. 05 0 .57 3. 97 v (1) <br />HRD-A3 20. 9 0.40 200 BS 10 .1 0. 06 0 .79 5. 42 v --- <br />HRD-A9 40. 3 0.63 290 80 11 .9 0. 069 0 .00 6. 15 v --- <br />HRD-AS 1. 0 0.15 50 09 .75 0. 076 0 .28 3. 09 V (11 <br />HRD-A6 1. 5 0.21 20 09 1 .0 0. 02 0 .91 2. 02 V (1l <br />HRD-A7 2. 5 0.19 75 86 1 .5 0. 02 0 .48 2. 29 V IL <br />HRD-AB 3. 0 0.50 130 09 2 .0 0. 052 0 .94 3. 94 V (1) <br />HRD-A9 6. 0 0.22 160 BO 2 .2 0. 045 0 .50 3. 57 v --- <br />HRD-A10 39 .6 0.26 95 80 12 .2 0. 054 0 .93 5. 65 v --- <br />HRD-All 30. 4 0.76 250 00 11 .8 0. 092 0 .56 5. 10 V --- <br />HRD-B9 6. 7 0.23 210 00 2 .5 0. 060 0 .55 4. 11 V --- <br />HRD-BS 6 .7 0.11 50 BO 2 .5 0. 060 0 .55 9. 11 v --- <br />HRD-B6 16. 0 0.15 70 80 5 .9 0. 025 0 .90 3. 60 V --- <br />HRD-BO 29. 7 0.61 220 80 0 .8 0. 032 1 .00 4. 95 V --- <br />HRD-B9 8. 0 0.37 125 B6 4 .33 0. 032 0 .76 3. 72 v --- <br />HRD-C1 90 .1 0.03 920 80 25 .6 0. 060 1 .32 7. 34 V --- <br />HRD-F1 35. 1 0.57 560 73 3 .70 0. 080 0 .51 A. 69 V --- <br />HRD-F1R 35. 1 0.57 560 73 3 .70 0. 000 0 .52 4. 59 V (3) <br />HRD-G1 296 .1 0.98 6l0 75 0 .67 0. 10 0 .68 6. 31 V --- <br />HRD-G1R 296 .1 0.98 630 75 8 .67 0. 10 0 .72 7. 60 V 131 <br />NRD-H1 11 .5 (4) (91 (4) 2 .9 0. 032 0 .77 5. 32 V --- <br />HRD-H2 3. 0 l91 (41 (4) 1 .7 O. C63 G . 51 S. U6 V --- <br />HRD-H3 4 .9 191 (4) 19) 2 .0 0. 076 0 .62 !i. 73 V --- <br />MERD-ME1 1 .0 0.09 10 09 0 .7 0. 01 0 .42 1. 94 V (1) <br />MERD-M F,2 113 .0 1.11 620 70 3 .56 0. 039 0 .23 2. 75 Tra pezord ti <br />MERD-ME3 1 .5 0.15 50 B9 1 .1 0. 05 0 .36 2. 92 V (1) <br />MERD-ME9 412 .7 1.25 035 70 32 .0 0. 06 0 .2B 4. 25 Trapezoid 10 <br />Nate: AL1 dreches designed with SEDCA.D and Mannrngs n = 0.03 eacep[ ripcapped <br />(1) Road safely berm di[ch. <br />(2) Sec[ron B d[tch (see Attachment 13-61 <br />(31 Riprap option foc lower dr[ch secn ons <br />13-6-7 Revised 3/99 <br />