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

TIME VLOB VCH VROB XNL XNCH XNR WTN f~LMIN SSTA
SLOPE XLOBL XLCH XLOBR ITRIAL me ICONr CORM. TOPli'm ENDST
STA" 1262. 1280. 1404. 1425.
PER Q'* .1 42.3 57.5
AREA- 2.1 152.7 85.6
VEL'" .5 2.5 6.0
DEPTH- .1 1.2 4.1
*SECNO 157.000
3280 CROSS SECTION 157.00 EXTENDED 1. 75 FEET
3470 ENCROACHMENT STATIONS- 400.0 1425.0 TYPE- 1 TARGET<<; lO25.00Q
157.000 3.95 5464.25 .00 .00 5464.62 .38 .03 . :>0 5462.00
895.0 46B.1 426.9 .0 158.0 66.6 .0 52.9 54.5 100000.00
.55 2.96 6.41 .00 .100 .080 .000 .000 5460.30 1260.32
.030150 1. 1. 1. 1 0 0 .00 164.GB 1425.00

FLOW DISTRIBUTION FOR steNo-

157.00

CWSEL-

5464.25

STA- 1260.
PER Q-
AREA-
VEl,'"
DEPTH'"

1280.
.2 52.1
2.5 155.5
.7 3.0
.1 1.3

1404. 1425.
47.7
66.6
6.4
3.2

'"SEeNO 158.000
3280 CROSS SECTION

158.00 EXTENDED

.75 FEET

3470 ENCROACHMENT STATIONS'" 359.0 2082.0 TYPE- 1 TARGET= 1723.000
158.000 6.35 5469.55 5468.16 .00 5470.28 .74 5.55 .11 5469.10
895.0 30.9 864.1 .0 30.5 123.3 .0 53.8 55.2 100000.00
.56 1.01 7.01 .00 .100 .080 .000 .000 5463.20 19111.75
.023540 210. 210. 240. 6 11 0 .00 140.25 2082.00
?LOW DISTRIBUTION FOR SECNO- 158.00 CWSEL=- 5469.55
STA" 1942. 1946. 2000. 2001. 2050. 2054. 2082.
PER Q= .0 1.0 .0 2.2 .3 96.5
AREA - .3 10.9 .3 17 .2 loB 123.3
VEL= .4 .B .9 1.1 1.3 7.0
DEI?TIl- .1 .2 .3 .4 .5 4.4
190C'I92 10:33:16 PAGE 36
SECNO DEPTH CWSEL CRIWS WSELK EG HV HL 010SS I.-BANK 1:LEV
0 QLOB QCH QROB ALOB ACH AROS VOL TWA R-BANK ELEV
TIME VI.OB VCH VROB XNL XNCH XNR \iTN ELMIN SSTA
SLOPE XLOBL XLCH XLOBR ITRIAL IOC ICONT CORAR TOPW ID ENOST
*SECNO 159.000
3280 CROSS SECTION 159.00 EXTENDED 1. 40 FEET
3685 20 TRIALS ATTEMPTED WSEL,CWSEI.
3693 PROBABLE MINIMUM SPECIFIC ENERGY
3720 CRITICAL DEPTH ASSUMED
3470 ENCROACHMENT STATIONS~ 359.0 2082.0 TYPE- TARGET- 1723.000
159.000 4.20 5470.20 5470.20 .00 5470.75 .55 .03 .01 5469.10
895.0 272.1 622.9 .0 109.5 89.7 .0 53.8 55.2 100000.00
.56 2.49 6.94 .00 .100 .080 .;)00 .000 5466.QO 1923.54
.032873 1. 1. 1. 20 1B 0 .00 158.46 2082.00
FLOW DISTRIBUTION FOR SECNO" 159.00 CWSEL= 5470.20
STA- 1924. 1946. 2000. 2001. 2050. 2054. 2082.
PER Q- 1.5 12.5 .3 14.8 1.4 69.6
AREA- 9.0 46.0 .9 49.1 4.4 89.7
VEL- 1.5 2.4 2.5 2.7 2.9 6.9
DEPTH- .4 .9 .9 1.0 1.1 3.2
*SECNO 160.COO
3302 WARNING: CONVEYANCE CHANGE OUTSIDE OF ACCEPTABLE RANGE, KRATIO ~ l.89
160.COO 5.29 5472.39 .00 .00 5472.47 .08 1.67 .35 5470.00
895.0 239.3 250.3 405.4 176.9 70.1 299.3 54.7 55.9 5472.10
.58 1.35 3.57 1.35 .130 .080 .130 .000 5467.10 1122.09
.009228 BO. 130. 130. 3 0 0 .00 397.81 1519.90
FLOW DISTRIBUTION FOR SECNO" 160.00 CWSEL"" 5472.39
STA" 1122. 1140. 1264. 1285. 1290. 1360. 1500. 1520.
PER Q'" .1 26.6 28.0 .1 15.0 30.0 .2
AREA~ 3.6 173.3 70.1 1.7 97.9 195.7 4.0
VE:L~' .4 1.4 3.6 .5 1.4 1.4 .4
DEPTH~ .2 1.4 3.3 .1 1.4 1.4 .2
190CT92 10:33:16 PAGE 37
SECNO DEPTH CWSEL CRUiS WSELK EG HV HL OI.OSS L..BANK ELEV
0 QLOB OCH QROB ALOB ACH AROB VOL TWA R-BANK EJ.EV
TIME VLOB VCH VROB XNL XNCH XNR \iTN EIJHN SSTA
SLOPE XLOBL XLCH XLOBR ITRIAL IDC ICONT CORAR TOPl'11O ENDST
*SECNO 161.000
161.000 3.71 5472.41 .00 .00 5472.48 .06 .01 .00 5470.00
895.0 265.7 179.1 450.1 179.0 52.4 302.7 54.7 55.9 5472.10