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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cryst<l.lRiver.rep

....arning: Th... energ:t loss was greater than 1.0 ft (O.3m). betweenth e current and previous cross section.
ThislllaY1ndicate the need for additional croS$sections
CROSSSECTIONOl/TPUT profile#10-year

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~~r' H~~~v (~W 7936.01 Element Lefton Channel Ri8~~5gB
0.25 wt.n-val. 0.050 a.OlS
w.~. Elev ~ft~ 7935.77 Reachlen. (ft) 552.36 570.84 551.05
ern '10'.5. Ft Flow Area (sqft) 43.71 295.58 3.92
E.G,slope(ft/ft) 0.004466 Area ~s~ ft) 122.23 295.58 5.02
QTotal(cfs) 1284.00 Flow cs) 68.86 1208.32 6.8]
TO~ Width ~ft) 368.85 TOP Width ~ft) 1al.n 170.89 15.69
ve Total ftls) 3.74 AV~. vel. ft/S~ 1.58 4.09 1.74
"'ax ehl Dpth (ft~ 1.76 Hyr.Oepth(ft 0.71 1.73 0.88
Cony. Total ~CfS 19214.1 COIW. Cds) 1030.4 18081.5 102.1
Uf\gth'rltd. ft) >63.5':1 'iletted Per. (h~ f.>l.IH 170.89 4.78
Min eh El eft) 7934.00 Shear {lb/sq ft 0.20 0.48 0,23
Alpha 1.13 Stream power (l/fts) 0.31 1.97 0.40
Frctll Loss ~ft) 1.66 cumvCllume(acre-ft) 78.79 77.76 61.13
C&Eloss Ft) 0.03 cum SA (acres) 40.44 23.32 35.92

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Warning:
Warllillg:
warning:

Oivided flow computed for this cross-section.
ThecClIIVeyallce ratiCl {upstream conveyance divided by downstream con veyance) is less than
0.7 or greater than 1.4. This may inr/icate thf' neer/for additional cross sections.
The energ~ loss was greater than 1.0 ft (0.3 m). between the current and previous cross section.
ThismaYlndicatetheneedforadditionalcrosssections.

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CROSS SECTIO~ OUTPUT profile.il50_year
~ef' H~l~v (~g> 7936.33 Element LeftOB Channel Rig~~5gB
0.25 "" n-val. 0.050 O.OlS
w.s. Elev ~ft~ 7936.08 Reach Len. (ft) 552.36 570.84 551.05
cdt W.S. ft Flow Area {sq ft) 65.64 348.71 5.46
E.G. Slope (ft/ft) 0.003748 :j~: f~~srt) 188.75 348.73 12.29
Q Total (cfs) 1>75.00 107.21 1458.30 9.48
TOf Width ~ft) 469.83 TOP width ~ft) 263.81 170.89 35.13
ve Total ft/s) 3.75 AVa' vel. ft/S~ 1.63 4.18 1.74
Max Chl Dpth {ft~ 2.08 Hyr. Depth (ft 0.85 2.04 1.00
conv. Total (cfs 25725.5 COIlV. (cfs) 1751.2 23819.4 154.9
Lengthwtd. (ft) 563.45 wetted Per. (ft~ 77.16 170.89 5.86
Min Ch E1 (ft) 7934.00 shear (lb/sqft 0.20 0.48 0.22
Alpha 1.16 StreamPower(l/fts) O.B 2.00 0.38
Frctll LOSS ~ft~ 1.93 cllIIlvolume{acre-ft) 93.73 88.02 71.84
c & E Loss ft 0.02 Cum SA (acres) 43.]9 23.32 40.81

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warning: Divided flow computed for this cross-section.
warni ng: :::~~s e~:?~ n~~~~t:a~h~r~:~~r f~~a~d~;~i ~~afO~~o~~' s~~~7~~~. the current and previous cross secti on.

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CROSS SECTION OllTPUT Profile'500-year
~ef' H~ldv (~g> 7936.44 Element LeftoB Channel Rig~~5gB
0.41 "" n-val. 0.050 O.OlS
~~~t ~~~~ ~m 7936.03 Reach Len. (ft) 552.36 570.84 551.05
Flow Area (sq ft) 61.85 340.30 5.20
E.G. slope (ft/ft) 0.006282 :j~: ~~~srt) 176.63 340.30 10.60
Q Total (cfs) 1950.00 125.98 1812.49 11.53
~~f ~~~~~ m~S) 4B.67 TOPwidthfft) 231.44 170.89 11.34
4.79 AVa' Vel. ft/S5 2.04 5.33 2.22
Max chl Optn (ft) 2.03 Hyr. Depth(ft 0.81 1.99 0.98
~~~~th T~~~ ~ ~~W 24602.7 conv. (cfs) 1589.5 22867.8 145.4
562.70 Wetted per. (ft~ 76.92 170.89 5.69
Min ch El (ft) 7934.00 sh~ar (lb/sq ft 0.32 0.78 0.36
Alpha 1.16 streampower(l/fts) 0.64 4.16 0.80
~T~ ~~~~ ~m 1.85 Cum Volume (acre-ft) 115.30 100.18 94.68
0.09 Cum SA (acr~s) 48.20 23.32 46.90

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Warnin'1:
warl'l1n9:
warning:

oivided flow computed for this cross-section.
The cClnveyance rat;CI (upstream conveya~ce divided by downstream conveyance) is less than
0.7 or greater than 1.4. ThismayindicatetheneedforadditionalcrosssectiClns.
The energ:( loss was greater than 1.0 ft (0.3 m). between the current and pr~vious cross section.
This may lndicate the need for additio~al cross sectiClnl.

CROSSSECTlON

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RIVER: Crystal
REACH: Marble

RS: 21304

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T~PJlT
DescriptiCln:
station Elevationoau 180
Sta Elev sta Elev su Elev Sta Elev Sta Elev
08015.76 1.098014.18 5.128009.26 8.9711004.58 14.397998.12
19.697991.7 28.447981.48 29.867979.83 30.417979.19 32.277977.02
]9.8679611.15 40.297967.65 41.967965.99 49.947958.11 51.847956.22
51.067955.02 56.21 7951.9 60.87947.39 62.567945.78 66.787941.93
73.257935.89 74.627934.66 78.447934.65 81.57934.65 847933.87
91.73 79B.93 94.72 7931.21 99,467930.37 105.447930.22 111.75 79]0.23
114.947930.24 123.37930.2\ 130.34 7930.39 132.87930.43 116.547930.54
393.937930.54 ]95.257931.12399.127932.81400.197933.27 405.587933.06
408.827932.92 416.37932.9] 426.697933.15 4]2.927933.23 437.747933.28
439.757933.36 449.23 7933.5 452.247933.57 456.927931.52 459.1 7930.5
459.987930.65465.067931.16 473.737912.11 477.367931.93481.427931.66
488.417930.78497.247931.04499.747931.45 501.547931.88 503.\179J2.36
505.567932.89 506.017932.95 508.827933.15 524.26 7933.5 526.297933.54
528.177933.64 \32.567933.78 534.217933.89 \37.017934.03 541.797934.12
544.937934.] 548.67934.15,55.587932.97 557.679]2.6561.9479]2.55
566.]77932.62570.937932.58575.977932.94 577.097911.0] 578.957933.27
579.987933.43 584.387933.41 587.27933.39 589.847933.77 594.77 7933.52
597.837932.75599.047932.36609.247932.72 617.027932.74 618.067932.39
619.967931.73 623.677930.48 624.637930.15 645.277930.38 647.427932.31
649.827934.16652.127934.15 656.37934.16664.0]7934.16667.117934.18
671.767934.16 679.57934.05 687.23 7933.92 6957933.92 702.77933.87
716.44 7933.9 758.14 7933.89 766.567933.43 778.147932.98 789.287932.41
792.87932.08798.687931.85 7997931.8819.23 79]1.8 823.147931.88
826.7 7931.81298.14 7931.81306.567931.811412.097931.811424.\37933.49
1426.\67933.791428.147934.021436.567935.151437.327935.271439.237935.54
1448.037933.971449.087933.791556.567934.47 1558.67934.311566.37 7933.79
1574.587934.&31576.567934.851616.5&7935.39163&.5&7936.161656.567936.7
1666.5679]6.831676.56 79371698.147937.831718.147918.471728.767938.9
1730.927938.971736.637938.891744.847939.041748.147939.031756.567939.18
1776.567939.321779.917940.09 17827940.81784.87940.541786.777940.35
1795.097939.581796.567939,451798.147939.361836.567939.621846.567939.71
1876.567939.921886.567940.211888.147940.271896.567940.541906.567940.81
1916.567941.051932.887940.911935.657941.2]1938.397941.561946.627942.54
1947.447942.631958.94 7942.91963.447942.961964.327943.551966.567945.08
1968.147946.181976.567951.811976.867952.061979.737953.991985.247956.21
1986.56 7956.7 U88.14 7957.31996.567960.691998.147961.37 2005.47964.67
Manning's 1'1 values nurn- \
su nval Sta nVal Sta 1'1 vaT Sta nVal su 1'1 val
o .06 99.46 .05 614.6] .035 645.27 .051412.09 .06

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~age 12

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