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

STA.. 1520. 1529. 1937. 1958. 1963. 1967. 1980. 19512. 19!18. 2034. 2054.
PE:R Q" .1 .5 3.2 3.7 5.3 18.8 17 .4 8.7 32. ~) 9.9
AREA- 1.1 7.5 12.3 9.5 10.7 36.8 33.9 17.0 76.6 30.5
vn.. .6 .6 2.6 4.0 5.0 5.2 5.2 5.2 4.3 3.3
DE:PTH- .1 .2 .6 1.9 2.7 2.8 2.8 2.8 2.1 1.5
*SECNO 90.000
3280 CROSS SECTION 90.00 EXTENDED .47 FEET

3302 WARNING: CONVEYANCE CHANGE OUTSIDE OF ACCEPTABLE RANGE, KRATI0 ~ 2.22

3470 ENCROACHMENT STATIONS- 1350.0 2025.0 TYPE- 1 TARGET" 675.000
90.000 2.06 5390.46 .00 .00 5390.57 .11 12.72 .02 5389.00
1015.0 65.2 425.6 524.2 28.0 L25.7 283.4 33.3 28.4 5389.40
.34 2.33 3.38 1.85 .060 .060 .060 .000 5388.40 1350.00
.010512 660. 730. 730. 8 0 0 .00 675.00 2025.00
fLOW DISTRIBUTION FOR SECNO- 90.00 CWSEL- 5390.46
190CT92 10:33:16 PAGE 27
SECNO DEPTH CWSEL CRIWS WSELK EG HV HL OLOSS L-BANK ELEV
0 OLOB OCH QROB ALOB ACH AROI) VOL TWA R-BANK ELEV
TIME VLOB VCH VROB XNL X.~CH XNR >lTN ELMIN SSTA
SLOPE XLOBL XLCH XLOBR ITRIAL roc ICONT CORAR TOPWID ENDST

srA- 1350.
PER o~
AREA-
VEL-
DEPTH-

1378.
4.6
21.7
2.2
.8

1383. 1464. 1502. 1537 . 1571. HOg. 1 6 ~;) 1 . 1689. 1725. 1760. 1939.
1.8 41.9 9.1 5.7 4.4 4.9 5.4 4.9 4.6 3.5 3.3
6.3 125.7 36.9 27.0 22.9 25.5 28.2 25.S 24.2 20.0 33.5
3.0 3.4 2.5 2.1 1.9 1.9 1.9 1.9 1.9 1.8 1.0
1.3 1.6 1.0 .8 .7 .7 .7 .7 " .6 .2

BTA- 1939.
PER 0-
AREA-
VEL-
DEPTH-

1990.
3.4
23.0
1.5
.5

2025.
2.5
16.5
1.5
.5

.SECNO 100.000
3265 DIVIDED FLOW

3302 WARNING: CONVEYANCE CHANGE OUTSIDE OF ACCEPTABLE RANGE, KRATIO ... .56
3470 ENCROACHMENT STATIONS- 1000.0 2150.0 TYPE- 1 TARGET- 1150.000
100.000 .97 5394.97 .00 .00 5395.13 .16 4.54 .02 5394.20
965.0 512.8 414.7 37 .5 141.2 150.9 27.2 35.2 31.9 5395.00
.36 3.63 2.75 1.38 .060 .060 .060 .000 5394.00 1062.56
.030738 220. 220. 220. 6 0 0 .00 702.16 2120.74

FLOW DISTRIBUTION FOR SECNO-

100.00

CWSEL-

5394.97

STA'" 1063.
PER Q-
AREA"
VEL"
DEPTH-

1209.
4.6
19.0
2.4
.1

1235.
9.2 10.3
22.5 25.1
3.9 3.9
.9 .9

1264. 1298.
12.0
29.4
3.'
.,

1327.
8.4
22.2
3.6
.8

1357. Hili2.
8.6 43.0
23.0 150.9
3.6 2.7
.8 .5

2112.
3.3
24.5
1.3
.1

2121.
.6
2.7
2.1
.3

.SECNO 110.000
3265 DIVIDEC FLOW
3280 CROSS SECTION

110.00 EXTENDED

.88 FEET

190CT92 10:33:16
SECNO DEPTH CWSEL CRIWS WSELK EG HV ilL OLOSS L-BANK ELEV
Q OLOB QCH QROB ALOB ACH ARoa VOL TWA R-BANK ELEll
TIME VLOB VCH VROB XNL XNCH XNR WTN ELMIN SSTA
SLOPE XLOBL XLCH XLOBR ITRIAL roc ICONT CORAR TOPWID ENDST
3470 ENCROACHMENT STATIONS'" 1400.0 2270.0 TYPE'" TARGET'"" 870.0'JO
110.000 1.88 5407.48 .00 .00 5407.62 .14 12.49 .'JO 100000.00
965.0 .0 229.4 735.6 .0 122.1 228.2 39.2 39.7 5407.20
.41 .00 1.88 3.22 .000 .060 .G60 .000 5405.60 1444.61
.019107 530. 530. 530. 13 0 0 .00 579.27 2270.00

PAGE 28

STA- 2214.
PER Q..
AREA'"'
VEL'"
DEPTH-

9.6
25.8
3.6
1.1

2045.
4.8
23.4
2.0
.4

2238. 2270.
10.7
31.2
3.3
1.0

110.00
2070.
3.5
14.4
2.4
.6

CWSEL-

5407.48

fLOW DISTRIBUTION FOR SECNO-

STA- 1445. 1991.
PER Q'" 23.8
AREA"" 122.1
VEL" 1. 9
DEPTH'" .4

2098.
5.2
18.9
2.6
.7

2125.
6.3
20.9
2.9
.8

2146.
6.0
18.4
3.1
.9

2168.
6.2
19.3
3.1
.9

2185.
3.8
12.7
2.9
.7

2192.
5.9
11.7
4.8
1.7

2197.
'.2
8.4
4.8
1.7

nOlo
3.8
7.9
4.6
lo6

2214.
6.4
15.3
4.0
1.3

*SECNO 120.000
3265 DIVIDED FLOW
3280 CROSS SECTION

120.00 EXTENDED

3.0'1 FEET