A'
B'
B
T.6S.
R. 1 E.
TOPSOIL REMOVAL BOUNDARY
BLOCKING DIKE
TOPSOIL STOCKPILE
OVERBURDEN STOCKPILE
E. 1022000
E. 1022000
E. 1022200
E. 1022200
N. 4
4480
0
N. 4
4480
0
N. 4
4500
0
N. 4
4500
0
N. 4
4520
0
N. 4
4520
0
N. 4
4540
0
N. 4
4540
0
N. 4
4560
0
N. 4
4560
0
3650
3650
3660
3650
3670
36603670
3650
3650
3650
2+00
3+00
4+00
5+00
6+00
7+00
7+42
0+000+00
1+00
3660
36503650
3660
DIVERSION
EXISTING GROUND
SECTION A-A' DIVERSION PROFILESCALE: HORZ. 1" = 50', VERT. 1" = 10'
0+00 0+50 1+00 1+50 2+00 2+50 3+00 3+50 4+00 4+50 5+00 5+50 6+00 6+50 7+00 7+503640
3650
3660
3670
3640
3650
3660
3670
S = 0.0066 ft/ft
AR Sn1.49 2/3
Q =
2-yr, 6-hr
1.66 ft4.79 fps1.30 ft25.49 ftWP =
Yn =V =R =
n =
b =S =
15 ft
0.0300.0066 ft/ft
33.13 ftQ = 158.8 cfs A =
1/2
DIVERSION CROSS SECTION
100-yr, 24-hr
4.20 ft7.98 fps2.79 ft41.59 ftWP =
Yn =V =R =
n =
b =S =
15 ft
0.0300.0066 ft/ft
116.08 ftQ = 926.4 cfs A =2 2
NOTE: RUNOFF VOLUMES AND PEAK INFLOWS WERE COMPUTED BY THE HEC-HMS COMPUTER PROGRAM USING THE SCS TYPE II RAINFALL DISTRIBUTION.
HYDROLOGIC DESIGN STORM CALCULATIONS100-YR, 24-HR STORM
RUNOFFVOLUME
(ac-ft)(cfs)INFLOW
PEAK100-YR, 24-HRPRECIP.
(in)
2-YR, 6-HRVOLUME
DRAINAGEAREA
(sq-mi)
CURVENO.(CN)
PRECIP.(in)
PEAKINFLOW
(cfs)
RUNOFF
(ac-ft)
WATERSHEDLAG TIME
(Min)
2-YR, 6-HR STORMDRAINAGE BASIN PARAMETERS
86.60.537 78 37.14 117.0 14.11.45 4.8 534.9
23.30.172 78 19.00 21.0 1.91.45 4.8 228.1
39.80.285 79 27.37 31.4 3.61.45 4.8 314.6
SWSNO.
3-1
3-2
3-3
0.30.002 78 5.75 0.5 0.01.45 4.8 4.4
TOTAL
0.40.003 78 6.63 0.7 0.01.45 4.8 6.33-4
3-5
150.40.715 - - 158.8 19.71.45 4.8 926.4
CROSS SECTION B-B'SCALE: HORZ. 1" = 50', VERT. 1" = 10'
DIVERSION
EXISTING GROUND
15.0'
2-YR 1.66 ft
100-YR 4.20 ft
0+00 0+50 1+00 1+50 2+003640
3650
3660
3670
3640
3650
3660
3670
BLOCKING DIKE CROSS SECTIONNOT TO SCALE
EXISTING GROUND
FINISHED GROUND15.0'
1
3 3
1
R. 1 E.
T.6S.
3630
3640
3940
3930
3930
3920
3920
3910
3910
3910
3900
3900
3900
3890
3890
3890
3880
3880
3870
3870
3860
3860
3850
3850
3850
3840
3840
3840
3830
3830
3830
3820
3820
3820
3810
3810
3810
3800
3800
3800
3800
3790
3790
3790
3790
3780
3780
3780
3780
3770
3770
3770
3760
3760
3760
3750
3750
3750
3650
3660
3670
3670
3680
3680
3690
3690
3690 3690
3700
3700
3700
3710
3710
3710
3710
3720
3720
3720
3720
3720
3730
3730
3730
3730
3730
3730
3740
3740
3740
3740
3740
SWS 3-5
SWS 3-1
SWS 3-2
SWS 3-4
T.6S.
R. 1 E.
OREBODY
E. 1020000
E. 1020000
E. 1022000
E. 1022000
E. 1024000
E. 1024000
E. 1026000
E. 1026000N
. 446
000
N. 4
4600
0
N. 4
4800
0
N. 4
4800
0
N. 4
5000
0
N. 4
5000
0
SWS 3-3
DIVERSION NO. 3
RAILROAD
ORE BODY
COUNTY ROAD
LEGEND
SITE PLANSCALE: 1" = 50'
N
DRAINAGE AREASCALE: 1" = 500'
Diversion No. 3
PREPARER
SIGNATURE OF PREPARER
DRAWN
CAD FILE
PDF FILE
PLOT DATE DATEIf this bar does notmeasure 1 inch this mapis not at its original scale
CHECK SCALES
REVISIONSDATECHECKEDDRAWN# APPROVED
CONSULTANT
REF
COORDS
Dewey-Burdock Project
DALE E. BROWN
DAVE C. JOHNSON
K:\Powertech\11270\DWGS\DIV_3_EXHIBIT.dwg
27 September 201227 September 2012
NAD 27, South Dakota State Plane South (feet)
K:\Powertech\11270\DWGS\DIV_3_EXHIBIT.dwg 9/27/2012 11:06:01 AM dcjoh
Plate 5.3-11
This plate is provided to fulfill the requirements of ARSD 74:29:02:11(9).