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• TABLE 2 Page 1 of 2 <br />CULVERT DRAINAGE CHARACTERISTICS <br />• <br />• <br />Culvert Approx. Drainage Required <br />Number Location Diameter Length Area Capacity <br />* inches feet acres cfs <br />4-1 At Grassy Creek crossing Two (2) 70 each 2550.0 160 Total <br /> near existing main haul 42" <br /> road. <br />4-2 Under haul road. 12 75 21.0 5 <br />4-3 At un-named tributary 27 90 323.0 35 <br /> to Grassy Creek at <br /> switchback. <br />4-4 Under haul road. 12 15 10.4 5 <br />4-5 Under haul road near 12 75 9.8 5 <br /> bend. <br />4-6 Under haul road. 12 75 31.0 5 <br />4-7 Under haul road. 12 75 24.4 5 <br />4-8 Under haul road. 12 15 14.9 5 <br />4-9 At collection ditch to 42 100 78.0 60 <br /> sediment pond at Pit #4. <br />5-1 Around Sediment Pond 27 150 78.1 12 <br /> between Pits #5 and #6. <br />5-2 At collection ditch to 24 80 17.3 19 <br /> sediment pond from Pit #6. <br /> c~pyn <br />5-3 For diversion ditch, under 27 70 71.1 12 <br /> access road to shop area <br /> between Pits #5 and #6. <br /> dirh.~ <br />5-4 For collection ditches from 27 85 29.4 28 <br /> Pit #5 under haul road near <br /> shop area. <br />5-5 For collection ditches, 24 10 16.1 18 <br /> under haul road within <br /> Pit #5. <br />8-81 <br />III-16 <br />