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<br />TABLE 2.05,3-fi
<br />DITCH DESIGN
<br />SUN COAL COMPANY - MEADOMS N0. 1
<br />ROUTT COUNTY, COLORA00
<br /> MINIMUM
<br /> CONSTRUCTION
<br /> MINIMUM SPECIFICATION
<br /> DITCM TRIANGULAR MITH 3 FEET
<br /> 100.Yr,24-Hr(21 DIMENSION 2:1-2:1 FREEBOARD
<br />' DRAINAGEf1) CURVE UNADJUSTED SLOPE SLOPE RO PEAK TOTAL DEPTH CAPACITY(3) (feet
<br />LOCATION GRADE AREA N0. PEAK ~ FACTOR FACTOR FLOM FLOM (feet) (efs) fps ~T
<br />4975-6450 3-6~ 1,fi ae 73 4,0 efs 6 1,07 0,62 2,65 N/A 0,6 2,8 4,2 1,0 4,0
<br />1000-2500 0,65 ee 73 1,9 cfs 5 1.04 0,62 1,23 N/A 0,6 4,3 3,2 1,0 4,0
<br />200-8700 0,24 ac 85 0.2 cfs 9 0,94 1,26 0,24 N/A 0,6 i,4 2,5 I,0 4,0
<br />13,600 to 5,11 ec 7i 10,0 cfs 9 0,94 0,62 5.63 N/A 0,9 7.0 6,7 1.2 4,2
<br />~ 14,200
<br />.-~
<br />A
<br />
<br />(1) Area Includes runoff from the haul road plus the dralnege arse,
<br />(21 Design Storm 10-year, 24-hour = 1,6 Inch
<br />25-year, 24-hour 2,0 Inch
<br />100-year, 24-hour 2,6 Inch
<br />(3) Mater volume cepeclty for V-0Itch conf lguretlon design of surfeee mine haulage roads - A manual Bureau of Mlnes Informetlon Cireu lar, 1977
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