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<br />sizes of riprap. <br /> <br />159. The table should probably include a column to indicate the channel geometry (trap, <br />triangle, etc.). <br />160. Why was the curve number changed to 86 for the ditch sizing runs for Fills 6 and 7? <br />161. A ditch is required along the disturbed azea perimeter north of Fill 9 to direct flows to a <br />pond. <br />Road Drainaee <br />162. Haul road ditches are assuming a vegetated channel. Is this realistic and will on-the- <br />ground conditions reflect this design? <br />163. Some culverts outfalls will direct flows onto fill outslopes where no defined drainage <br />exists. Permit text should discuss measures to be used to protect these areas from erosion. <br />164. Culvert and ditch calculations were reviewed. I~Iumerous discrepancies were noted. <br />Following is a list of these problems, organized by section of road. <br />Jeff Canyon Haulroad <br />* no calculation or table entry for culvert 65+99 <br />* inflow to culvert 124+79 should be the same as Upper Jeff 10 yr storm inflow. <br />* second and third pages of the table repeat the first three lines from page one of the <br />table <br />* no calculations for 129+55 - 141+18 <br />* culvert shown at 165+38 should be removed <br />* culverts 174+74 and 187+13 aze not on the map <br />* no culvert at 207+63 on the table <br />* calculations for 204+85 to 207+63 should have 9.8 acres minimtun <br />* no calculations for culvert 212+38, acreage should be 26 acres <br />* culvert 219+52 not on the map <br />* table inaccurate, bottom second page, should be 219+52 <br />* 6.2 acres above 232+30 is not included in calculations <br />* 232+30 - 235+62 calculations aze inaccurate <br />* footnote should indicate 260+38 designed for 20 yr storm <br />Cow to P3 Portal <br />* calculations show culvert at 281+51, not on map <br />* table shows culvert at 278+O1, not on map, calculations inaccurate <br />* calculation title page says 192+61, should be 292+61 <br />