FLOOD00150

• Designation Number: 579
• County: Gunnison
• Community: Marble and Vicinity
• Stream Name: Crystal River
• Title: Floodplain Information Report - Crystal River Technical Appendix
• Date: 8/1/2004
• Prepared For: CWCB
• Prepared By: Icon Engineering, Inc.
• Floodplain - Doc Type: Floodplain Report/Masterplan

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C&ELOSS(ft)

0.05

cum SA (acres)

22.28

i?HalRive23~~~

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warning: The energy equati,?n could not be balanced within the spe cified number of iterations. The
. program used critlCal depth for the water surface and continued on with the calculations.
Warnlllg: The energ'l' loss was greater than 1.0 ft (0.3 m). between the current and previous cross section.
This may lndicate the need for additional cross sections.
Warning: During the standard step iterations, when the assumed water surface wu set equal to critical
depth, the calculated water surface came back below critical depth. This indlCates that there is
not a valid subcritical answer. The progra.mdefaulted to critical dep<::h.
CROSS SECTIOI'l OUTPUT profile IFloodway

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~er'H;~dV(~W 7895.10 Element Left 08 Channel Ri8~~6g8
2.10 Wt. n-val. 0.060 0.035
W.~. Elev ~ft~ 7893.00 Reach Len. (ft) 479.98 486.68 492.59
Crltw.s. ft 7893.00 Flow Area (sq ft) 30.32 128.90 78.25
E.G. Slope (ft/ft) 0.009127 Area ~s~ ft) 30.32 128.90 78.25
QTotal (cfs) 2181.00 Flow cs) 132.26 1676.97 371.77
TO~ width tft) 59.45 Top width ~ft) 10.68 22.44 26.31
'Ie Total hIs) 9.18 Avg. vel. ft/s~ 4.36 13.01 4.75
Max Chl Opth (ft~ 5.76 Hyr.Oepth(ft 2.84 5.74 2.97
Conv. Total ~CfS 22828.9 Conv. (cfs) 1384.4 17553.2 3891.4
Lengthwtd. ft) 487.15 Wetted per. (ft~ 12.12 22.H 27.50
loIinchEl (ft) 7887.24 shear (1b/sqft 1.43 3.27 1.62
Alpha 1.60 streampower(l/fts) 6.22 42.58 7.70
~rit~ t~~~ ~m 4.87 Cum volume (acre-ft) 17.79 71.21 12.60
0.05 Cum5A(acres) 6.85 17.12 5.48

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warning:
warning:
Warning:

The en~r!lY ~quation could not be balanced within the sp~cified number of iterations. The
proqram used critical depth for the water surface and continued on with the calcull.<::ions.
The ener9'l' loss was greater than 1.0 ft (0.3 m). between the current and previous cross section.
This rnay lndicate the need for additional cross sections.
During the standard step iterations, when the assumed water surface was set equal to critical
depth, the calculated water surface came back belOW critical depth. This indlcates that there is
notavalidsubcriticalanswer. The program defaulted to critical depth.

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CROSS SECTIO"l OUTPUT profile#10-year
~er' H~~dv (~g> 7894.04 Element Left DB Channel Rit~6gB
1.80 ". n-val. 0.060 0.035
w.s.Elev(ftf 7892.24 Reach un. (ft) 479.98 486.68 492.59
crit \1/.5. (ft 7892.24 Flow Area (sq ft) 22.71 111.75 58.73
E.G. slope (ft/ft) 0.00U7S ~j~: ~~~srt) 22.71 111.75 58.73
QTotal (cfs) 1657.00 90.25 1325.14 241.62
TO~ Width ~ft) 56.39 Top width (ft) 9.23 22.44 24.72
ve Total ft/s) 8.58 AV~. vel. (ft/S~ 3.97 11.86 4.11
loin chl Dpth (ft~ 5.00 Hyr.Depth(ft 2.46 4.98 2.38
Conv.Total (cfs 17299.0 Conv. (cfs) 942.2 13834.4 2522.5
Length wtd. (ft) 487.11 Wetted Per. (ft~ 10.48 22.44 25.72
"linchEl (ft) 7887.24 shear (1b/sqft 1.24 2.85 1.31
Alpl\a 1.57 stream Power (lIft s) 4.93 33.82 5.38
~r~t~ t~~~ m~ 4.99 Cum volume (acr~-ft) 29.31 55.68 27.78
0.04 cum SA (acres) 19.48 17.12 19.34

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warning:
warning:
warning:

The energy equation could not b~ balanced within the sp~cified number of iterations. "The
program used critical depth for the wat~r surface and continued on with the calculations.
~~r s e~:~gl' n~1~~t:1I~h~r~:~dr f~~a~d~i ~i~~afO~~o~~' s~~~1~~~. the current and previous cross secti on.
During the standard step iterations, when the assumed water surface was set e9ual to critical
depth, the calculated water surface came back belOW critical d~pth. This indlcates that there is
not a valid subcritical answer. The program defaulted to critical depth.

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CROsSsECTlONOUTPUT profile ISO-year
~e~' H~~dv (~~F 7894.81 E1~ment L~ft DB Channel Ri8~~6gB
2.03 ". n-val. 0.060 0.035
~r~t ~~~; mS 7892.79 Reach Len. (ft) 479.98 486.68 492.59
7892.79 Flow Area (sq ft) 28.02 123.97 72.52
E.G. Slope (ft/ft) 0.009208 ~j~: f~~St) 28.02 123.97 72.52
QTotal (cfs) 2031.00 119.59 1578.34 333.07
~~~ *~~~~ HUs) 58.57 TOP Width (ft) 10.26 22.44 25.87
9.05 ~~~r. V~~PtAf~m 4.27 12.73 4.59
"laxChl Opth (ft) .1.54 2.73 5.52 2.80
coo'i.1tltl.l {ch) 2116~.B CQnv. (ch) 1146. ~ 16448. ~ 3471.0
LengthWtd. (ft) 487.14 ~~~~~d (n:/sq (m 11.64 22.44 26.99
loIinchEl(ft) 7887.24 1.38 3.18 1.54
Alpha 1.59 stream Power (lb/ft s) 5.90 40.43 7.09
~T~ t~~~ Hg 4.90 Cum volume (acr~-ft) 35.82 62.28 35.98
0.06 cum SA (acres) 21.48 17.12 22.70

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warning:

;~~I/~~~r~~~:Q~;~~~~a ~o~~~t~O~o~e t~~) ~:~:~ j~?l~~~~~~H~~~~~~~~~:
~~r s e~=?~ n~~~~t:a~h~r~:~dr f~~a~d~; ~i~~afO c~o~~. s~~~1;~~. the current and pr~vious cross secti on.
During the standard step itera.t:ions, when the assumed water surface was set equal to critical
depth, the calculated water surface came back below critical depth. This indlcans that there is
not a V'alid ~ubcritical answer. The program defaulted to critical depth.
CROsSSECTtO"lOUTPUT profi1e#500-year

warning:

Warning:

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~er' H~~dv C~g>
W.5.E1eV(ft)
critw.S. (ft)
CG, Slope (fe/h)
QTotal (ds)
~~~ ~~~~~ HU.)
loIaxchl Opth (ft)
conv.Total (ds)
Length wtd. (ft)
"linchEl (ft)
Alpha
FrctnLoss(ft)
C&ELoss(ft)

7895.72
2.27
7893.45
7893.45
0.009090
<515.00
61.21
9.51
6.21
16379.0
487.16
7887.24
1.62
4.84
0.05

Element
Wt.n-val.
Reach L~n. (ft)
F)owArea(sqft)
~~~~ ~~'Mt)
r~g.W~~f~ m3s)
Hydr. oepth (ft)
cony. Cds)
wetted per. (ftl
Shear(lb/sqft
str~am Power (11ft s)
cum volume Cacre~ft)
Cum SA (acres)

LeftOB
0.060
479.98
35.26
15.26
161.49
11.50
4.58
3.07
1693.8
13.05
1.53
7.02
45.59
25.99

chann~l
0.035
486.68
138.89
131>.89
1895.05
22.44
13.64
6.19
19876.6
22.44
3.51
47.92
70.J8
17.12

Rig~a6gB
492.59
90.18
90.1S
458.46
27.27
5.08
3.31
4808.6
28.54
1.79
9.12
47.56
26.79

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Warning:
warning:
warninl/:

The energy ~quation could not be balanced within the specified number of iterations. The
program used critical depth for the water surface "nd continued on with the calculations.
The energy loss was greater than 1.0 ft (0.3 m). between the current and previous cross section.
ThismaYlndicate the need for additional cross se"ions.
Dud ng the standard step i teration~, when the assumed water surface was set equal to cri ti ca 1
depth, the calcuht~d water surface came back below critical depth. This indlcates that there is
not a o.a'~d sllbcritiul answer. Tne progr"", ~efau1ted to critical depth.

CRO~S SECTION

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RIVER: crystal
REACH: Marble RS: 15423
INPUT
Description:
stationElevationOaea nurn- 6?
sea Elev Sta Elev Sta

Elev

m

Elev

m

Elev
page 30

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