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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E.G. US. eft)
1'1.5. us. eft)
QTatal (ds)
g :~~~g(.j~rS)
weir Sta Lft eft)
weir Sta Rgt (ft)
Yle~r submer!l
we'''",ax Depth (ft)
"Ii" El Weir Flow eft)
MlnEl prs(ft)
DeluEG(ft)
DeltawS(ft)
:: g~:g C~~a (~~/sjt)
coef of Q
BrSelMethod

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warning:
Warning:
warning;
warning:

The energy equation could not be bahncedwithin the specified num ber of iterations. The
program used critical depth for the water surface and continued On with the calculations.
The velocity head has chan!led by more thanO.S ft (O.lSm). This may indicate the need for
additional cross sections.
Theenero);'losswaSlIreaterthanl,OftCO.3m).betweenthecurrencandpreviouscrossseccion.
Thismay,ndicatetheneedforaddaionalcrosssections.
~~~~g~ i~: ~~~~~f~~e~t:~t~~e~~~}~~~. c~:n b~~~ ~~j~:e~r~~f~~ 1 sd~~~~~ w~~i ~efn~1~:~e~o t~~~ t~~:~e i 5
not a valid subcritic'll answer. The progranl defaulted to critical depth.
Tnevelocityhead has changed by more than 0.5 ft (0.15m). This may indicate tneneed for
additiGn..l cn~ss sections.

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warning:

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CROSS SECTIO~

RIvER: crystal
REACH: Marble

7931.69
7929.87
2515.00
2515.00

Element
EG.Elev1'"
w S. Elev ft)
ctit w s. ft)
Max chl Opth (ft)
vel Total (ft/s)
Flow Area (sq ft)
Frovde'chl
specifForce(cuft)
~:~~ ~~~~~ ~m
COny. Total (cfs)
Top....idth(ft)
Frctn lOSS (ft!
C&l: lOSS (ft
Shear Total (l/sqft)
power Total (lb/fts)

793S.89
7933.14
1.69
2.75
441.29
11.35
Energy only

RS: 18542

INPUT
Oescription:
stationElevationOata nurn_
Sta l:lev Sta !:lev
07958.47 2.9779,6.9
14.867948.23 15.377947.87
27.517940.31 31.837937.87
45.527935.38 47.837935.38
89.47919.92 101.27920.8
128.347932.37133.717933.01
151.957934.76153.68 7935
215.797934.19 219.047934.22
240.387934.48 257.647934.99
310.957936.5& 114.19 7936.7
344.587937.89392.147941.29
41&.&67943.3& 425.&7943.92
448.857945.74454.217946.13
472.327947.55 476.77947.93

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"
Sta Elev
3.117956.83
16.147947.35
35.087936.75
53.327934.8&
113.37928.&
135.0579B.18
170.637934.92
22>'627934.24
261.677935.03
lZO.037'J16.85
394.87941.47
440.257945.08
458.147946.47
482.727948.)7

Sta Eley
4.2&7955.96
23.437942.93
38.&7935.46
55.47934.8
123.737932.69
136.577933.43
204.237934.22
233.067934.4
289.7279]5.72
127.657937.21
398.97941.8
44).347945.48
463.47946.85
505.747950.36

Manning'snvalues num_ 3
sta n val sta n val Sta n val
o .06 78.2 .035 101.2 .06
Bank 5ta: ~~~~ ~~~~~ Lengthsi6~en ch:n~l 4~1~~~
IneffectiveFlow "um_ 2
Sta l Sta II Elev f'ermanent
o 587936.8 T
113.3510.047935.88 T
CllosssEcnONOUTPUT profile'100-year

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~eY'H:~dv(~g)
~i-~t ~:~~ ~~g
E.G. s1ope(ft/ft)
QTotal (cfs)
~~~ ~~~~~ emS)
MaxChlDpth(ft)
eonv.Total (cfs)
length wtd. (ft)
MinchEl (ft)
Alpha
FrctnLoss(ft)
e&ELOSs(ft)

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7929.21
2.64
7926.57
7926.57
0.009161
2181.00
41.12
11.1&
6.6S
22786.3
476.16
7919.92
1.36
4.53
0.43

Element
wt.n-Val.
Reach Len. (ft)
Flow Area (sq ft)
:1~ ~~1srt)
Top Width eft)
~~a~. V~~Pth f~m
eorw. (cfs)
Wetted per. (ft!
shear (1b/sq ft
Streamf'ower(l/fts)
cum volume (acre-ft)
Cum SA (acres)

crystalRiver.rep
InsideBRUS InsideBRDS
7931.36 7930.33
7928.54 7928.50
7928.54 7927.18
8.62 8.58
11.35 8.97
221.62 280.25
0.93 0.72
1722.48 1&B.S9
5.03 5.94
47.62 51.74
27429.1 37143.0
44.03 47.18
0.15 0.03
0.49 o.n
2.44 1.55
27.72 13.91

sta Elev
8.197953.11
2>.527941.54
39.227935.29
78.27920.8
125.347932.29
147.687934.46
210.387934.3&
236.947934.42
300.377936.13
31&.537917.$4
406.457942.38
448.217945.69
466.917947.16
510.047950.79

coeffcontr. hpan.
.3 .5

leftaR
0.060
466.19
27.11
27.11
117.03
9.40
4.32
2.88
1222.7
11.03
1.41
6.07
40.42
21.18

Channel
0.035
47S.10
142.82
142.82
1956.&1
23.00
13.70
6.21
20444.1
23.07
3.54
48.52
74.40
19.29

Ri8~~6~B
491.64
25.17
25.17
107.16
8.73
4.26
2.88
1119.5
10.46
1.38
5.116
42.06
24.61

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warning:
warning:

warninq:
warning:

The energy equation could not be balanced within the specified nUm berofiteratio"s. The
program used critical depth for the water surface and continued on with the calculations.
The velocity head has changed by mOre than 0.5 ft (0.15m). This may indicate the need for
additional cross sections.
The energr 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.
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 ind1Cates that there is
not a valid subcritical answer. The programdefau1tedto critical depth.

CROSS SECTION OUTPUT profile'Floodway
~eY' H~~~V (~g) 7929.21 Element leftOB Channel Ri8~~6~a
2.64 "'. n-val. 0.060 0.035
W.S. EleY(ft5 7926.57 Reachlen. (ft) 466.19 475.10 491.64
cdt W.S. (Ft 7926.57 FlowArea(sqft) 27.11 142.82 25.17
E.G. slope (ft/ft) 0.009161 :1~: {~1srt) 27.11 142.82 25.17
QTotal (cfs) 2181.00 117.03 1956.81 107.16
~~~ ~~~~~ (ft) 41.12 Top Width ~ft) 9.40 23.00 8.73
(ft/s) 11.18 Avg. vel. ft/s~ 4.32 13.70 4.26
loIaxchlopth(ft) 6.65 Hydr. oelnh (ft 2.88 6.21 2.88
~~~~th T~~~~ ~~W 22786.3 Conv. (cfs) 1222.7 20444.1 1119.5
476.16 wetted f'er. (ft~ 11.03 23.07 10.46
MinchEl (ft) 7919.92 shear (lb/sqft 1.41 3.54 1.38
Alpha 1.36 Stream power (l/ft s) 6.07 4&.52 5.86
Frctnloss ~f<' 4.53 Cum volume (acre-ft) 19.61 80.84 15.10
e&ELoss f<' 0.43 cum SA (acres) 7.75 19.29 6.41

The energy eqllation could not be balanced within the specifiednum ber of iterations. The
program used critical depth for the water surface and continued on with the calculations.
The velocity head has changed by more thanO.S ft (0.15 m). This may indicate the need for
additional crOSS sections.
i~i s e~:?r n~~~:t:a~h~r~:~dr f~~a~d~i ~i ~~a fO c~o~~. s~~~~~~. the current and previous cr05S secti on.
~~~~~~ ~~~ ~~f~~f~~e~t:~t~~e~~~}~~~, c:~~n b~~~ g~j~:e~rV~l~~l s~~~~~~ w~~i ~ef nd1~:~e~0 t~~~ t~~:~e is
not a valid subcritical answer. The program defaulted to critical depth.
CROSS SECTION OUTf'UT f'rofile #lO-year

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warning:

warning:

warning:

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Warning:

~eY'H:~dv(~g)

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7927.87
2.29

Element
wt.n-val.

leftOB
0.060

Channel
0.035

lIi8~~6g8

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