REV14622

• Permit No: M1980244
• IBM Index Class Name: Revision
• Doc Name: MODEL INPUT FOR CRUSHER SEDIMENTATION POND AREQUA GULCH SEDIMENTATION POND BATEMAN CREEK DETENTION P
• Type & Sequence: TR39
• Media Type: D
• Archive: No

L

CC&V Mine
Model Input for Crusher Sedimentation Pond, Arequa Gulch Sedimentation Pond, Bateman Creek Detention Pond, and BMP Sump
PROJECT NO.; 003-2142.6
CALCULATION TABLE 1B. TIME OF CONCENTRATION DATA.
SI IRWATERSHFIl•
C:\DOCUME-7\jlupoLLOCALS-1\Temp\frables1a1D1c xlslTables 1
DATE: 7/11/2001
TIME: 2:41 PM
SHEETlOVERLAND FLOW SHALLOW CONCENTRATED FLOW CHANNEL FLO TIME

SUBBASIN ID `o
~ o
~ o

LENGTH (ft)
VERT. DROP
(ft)

SLOPE (ft/ft) ESTIMATED
VELOCITY
(fps) o
~ ~
~ o
LENGTH
(ft)
VERT. DROP
(ft)

SLOPE (ft/ft) ESTIMATED
VELOCITY
(fps) o
~ v
~ o

LENGTH (ft) i
VERT. DROP
(ft)

SLOPE (R/ft)
ESTIMATED
VELOCITY (fps) TIME OF
CONCENTRATION''
(min)
Lag Time,
Lo (hour)
P2 3 300 90 0.30 3.83 7 350 100 0.29 10.85 8 780 150 0.192 13.24 2.8 0.028
BT1 3 300 35 0.12 2.39 7 2090 380 0.18 8.66 8 835 1.3 0.002 1.17 16.0 0.180
BT2 3 300 60 0.20 3.13 7 1340 395 0.29 11.02 B 900 162 0.180 12.81 4.8 0.048
BT3 3 300 30 0.10 2.21 1360 540 0.40 12.79 0 - - #N/A 4.0 0.040
BT4 3 300 90 0.30 3.83 7 50 10 0.20 9.06 8 1850 0.005 2.14 15.8 0.158
BTS 3 283 115 0.41 4.46 0 - - #N/A B 790 40 0.050 6.75 3.0 0.030
BT6 3 300 120 0.40 4.43 7 85 10 0.12 6.96 8 760 38 0.050 6.75 3.2 0.032
AO1 3 300 30 0.10 2.21 7 700 280 0.40 12.84 6 535 1.3 ' 0.003 1.51 9.1 0.091
02 3 300 0.6 0.002 0.31 7 955 360 0.38 12.46 8 490 1.2 0.0025 1.51 22.7 0.227
03 3 300 0.6 0.002 0.31 7 1050 350 0.36 12.14 8 745 1.9 0.0025 1.51 25.6 0.256
AO4 3 300 0.6 0.002 0.31 7 985 310 0.32 11.40 8 610 1.5 0.0025 1.51 24.1 0.241
05 3 300 0.6 0.002 0.31 7 1410 460 0.34 11.85 0 - - #NIA 18.0 0.180
06 3 300 0.6 0.002 0.31 7 520 60 0.12 6.92 8 1660 390 0.235 14.64 19.1 0.191
MD1 3 300 40 0.13 2.56 7 730 160 0.22 9.50 8 1560 19.7 0.013 3.39 10.9 0.109
BT9 3 300 120 0.40 4.43 7 630 245 0.39 12.66 8 680 1.7 0.0025 1.51 9.5 0.095
BT10 3 300 70 0.23 3.38 7 1380 550 0.40 12.82 8 460 1.2 0.0025 1.51 8.4 0.084
BT11 3 300 65 0.22 3.26 7 1275 510 0.40 12.84 8 595 1.5 0.0025 1.51 9.8 0.098
BT12 3 300 40 0.13 2.56 7 1415 500 0.35 12.07 8 275 50 0.182 12.88 4.3 0.043
See following attachment for Time of Concentration Calculation Coefficients
"minimum of 5 minute time of concentration used in HEC-1 Model =_> min. lag time = 0.05 hour
CALCULATION TABLE 1C. ROUTING DATA.
SUBWATERSHED:

CHANNEL ID
LENGTH (ft)
SLOPE (ft/ft) ROUGHNESS
(n)
SHAPE
WIDTH (ft) SIDE
SLOPE
R•BT1 1380 0.0015 0.035 TRAP 12 2.5
R-BT2 900 0.180 0.035 TRAP 12 2.5
R-BT4A 465 0.135 0.024 CIRC 5 N/A
R-BT4 1800 0.005 0.030 TRAP 15 2,5
R-BT8 1600 0.005 0.030 TRAP 15 2.5
R-AO2 835 0.050 0.035 TRAP 12 2.5
R-AO3 820 0.050 0.035 TRAP 12 2.5
R-AO4 965 0.050 0.035 TRAP 12 2,5
R-AQS 675 0.050 0.035 TRAP 12 2.5
R-BT9 760 0.0025 0.030 TRAP 12 2.5
R-BT10 455 0.0025 0.030 TRAP 12 2.5
R-BT11 885 0.0025 0.030 TRAP 12 2.5
R-BT12 110 0.0025 0.030 TRAP 12 2.5
R-BT12A 525 0.137 I 0.024 CIRC 5 N!A