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<br />C-1996-083 Bowie No. 2 <br />TR-55 Adequacy Review - mlt <br />14-Aug-2008 <br />Page 3 of 3 <br />Please provide the anticipated width of the French drain, and indicate the size and type <br />of drain pipe, and whether filter fabric will be used around the drain pipe or the <br />washed rock.. <br />Typical Section C <br />8) The cover letter indicates that the soil slope will be reinforced with riprap, but the <br />typical section does not identify the reinforcing material to be used. <br />Please provide the estimated size of riprap to be used to reinforce the IH.I V slope <br />above the portals, and label the Existing Grade (red line) as such. <br />Typical Section D <br />9) In the diagrams for Wall #1 and Wall #2, the colors used are inconsistent with the <br />wall colors used elsewhere in the maps. <br />Please refer to comment 5), above. <br />10) In the Slope diagram, the line colors are reversed from those used in the other <br />Typical Sections. <br />Please change the Existing Grade line color to red, to be consistent with the scheme <br />used elsewhere on the Map. <br />cc: Sandy Brown, DRMS