FLOOD01578

• County: Boulder
• Community: Boulder
• Stream Name: Two Mile Canyon Creek
• Title: FEMA Letter of Map Revision
• Date: 10/15/1992
• Prepared For: Boulder
• Prepared By: Love & Associates, Inc.
• Floodplain - Doc Type: Floodplain Report/Masterplan

DEPTH- 1.2 .. .0 .0 '.3
tSECNO 218.000
3280 CROSS SECTION 218.00 EXTENDED .15 FEET
3370 NORMAL BRIDGE, NRD- . MIN ELTRD- 5523.70 MAX ELLC" 5522.60
3470 ENCROACHMENT STATIONS- 525.0 985.0 TYPE- 1 TARGET- 460.000
218.000 5.26 5524.16 .00 .00 5524.26 .10 .03 .0' 5523.70
845.0 628.3 191.3 25.4 267.7 57.4 39.5 68.1 68.5 5523.70
,71 2.35 3.33 .6' .130 .080 .130 .000 5518.90 525.00
.028874 1. 1. 1. 3 0 0 -17 .49 460.00 985.00
FLOW DISTRIBUTION FOR SECNO- 218.00 CWSEL- 5524.16
STA" 525. 580. 700. 140. 746. 762. 800. 9135.
PER 0" 28.8 42.8 2.' .. 22.6 1.2 1.8
AREA- 90.8 156.2 18.0 2.7 57.4 11.4 28.0
VEL- 2.7 2.3 1.1 1.1 3.3 .9 .6
DEPTH- 1.7 1.3 .5 .5 3.6 .3 .2
*SECNO 219.000
3280 CROSS SECTION 219.00 EXTENDED .3' FEET
3370 NORMAL BRIDGE, NRD- . MIN ELTRD- 5523.70 MAX ELLC" 5522.60
3470 ENCROACHMENT STATIONS" 525.0 985.0 TYPE= 1 TARGET= '60.030
219.000 5.43 5524.33 .00 .00 5524.40 .07 .13 .30 5523.70
845.0 617 .3 164.0 63.7 308.7 60.4 80.8 68.1 68.6 5523.70
.72 2.00 2.72 .79 .130 .080 .130 .000 5518.90 525.00
.017940 6. 6. 6. 1 0 0 -17 .49 460.00 985.00
190CT92 10:33:16 PAGE 57
SECNO DEPTH CWSEL CRIWS WSELK 8G HV HL OLOSS L-BANK ELEV
Q OLOB QCH OROB AL08 ACH ARaB VOL TWA R-BANK ELEV
TIME VLOa VCH VROB XNL XNCH XNR WTN ELMIN SSTA
SLOPE XLOBL XLCH XLOBR ITRIAL roc ICONT CORAR TOP~ ID ENDST
FLOW DISTRIBUTION FOR SECNO- 219.00 CWSEL- 5524.33
STA" 525. 580. 700. 740. 746. 762. 800. 985.
PER Q" 27.0 42.1 3.' .5 19.4 2.1 5.5
AREA- 101.0 178.4 25.5 3.8 60.4 18.5 62.3
VEL" 2.3 2.0 1.1 1.1 2.7 .9 .7
DEPTH'" 1.8 1.5 .6 .6 3.8 .5 .3
*SECNO 220.000
3280 CROSS SECTION 220.00 EXTENDED .29 FEET
3470 ENCROACHMENT STATIONS.. 525.0 985.0 TYPE" 1 TARGET.. 460.000
220.000 5.39 5524.29 .00 .00 5524.43 .14 .01 .02 5523.70
845.0 465.9 338.7 40.5 298.5 77 .1 70.5 68.1 68.6 5523.70
.72 1.56 4.39 .57 .130 .080 .130 .000 5518.90 525.00
.011351 1. 1. 1. 2 0 0 .00 460.00 985.00
FLOW DISTRIBUTION FOR SECNO- 220.00 CWSEL- 5524.29
STA" 525. 580. 700. 740. 746. 762. 800. 985.
PER Q- 20.6 31.8 2.' .. 40.1 1.. 3.4
AREA- 98.5 172.9 23.6 3.5 77 .1 16.7 53.7
VEL'" 1.8 1.6 .9 .9 4.. .7 .5
DEPTH~ 1.8 1.4 .6 .6 4.8 .. .3
*SECNO 221.000
3265 DIVIDED FLOW
3280 CROSS SECTION 221.00 EXTENDED .90 FEET
221.000 5.20 5524.90 .00 .00 5525.10 .19 .65 .01 5524.00
845.0 445.0 366.6 33.4 312.8 72.1 41.1 68.6 69.1 5524.00
.72 1.42 5.08 .81 .130 .080 .130 .000 5519.70 400.00
.014610 50. 50. 50. 2 0 0 .00 436.09 904.14
FLOW DISTRIBUTION FOR SECNO- 221.00 CWSEL'" 5524.90
190CT92 10:33:16 PAGE 58
SECNO DEPTH CWSEL CRIWS WSELK 8G HV lIL OI.OSS L-BANK I::LE'I
Q OLOB QeH OROB AL08 ACH AROB VOL T~lA R-BANK ELE'I
TIME VLOB VCH VROB XNL XNCH XNR W'l'N EI.MIN SSTA
SLOPE XLOBL XLCH XLOBR ITRIAL roc ICONT CORAR TOP~'ID ENDST

STA- 400. 460. 550. 650. 708. 795. 813. 904.
PER Q... 14.1 21.4 13.8 2.5 .8 43.4 '.0
AREA- 75.1 112.7 90.2 26.3 8.' 72.1 41.1
VEL=- 1.6 1.6 1.3 .8 .8 5.1 .8
DEPTH" 1.3 1.3 .9 .5 .1 '.0 .5
*SECNO 222.000
3301 HV CHANGED MORE THAN HVINS
3302 WARNING: CONVEYANCE CHANGE OUTSIDE OF ACCEPTABLE RANGE, KRATIO .. .:17