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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warning;
warning:
Note:

Divided flowcompllted for this cross-section.
i~~s e~:~g~ n~~~~t~a~h~r~:~~r f~~a~d~; ~i~~a~O~~o~~' 5~~ii6~~. the current and previous crQSS secti<lll.
Multiple critical depths were found at this location. The critical depth with the lowest, valid,
surh.cewasused.

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CROSS SECTION OUTPUT
~e~'I!;~~V (~g>
w.s.e1ev(ft)
Crit 1'1.5. eft)
E.G,Slope(ftjft)
QTotal (cfs)
TOp Width (ft)
Vel Toul (ftjs)
MaxchlDpth(ft)
Cony,Total (cfs)
Length wed. (ft)
MinchEl(ft)
Alpha
Frctnloss(ft)
C &. E LOSS (ft)

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warning:
warning:
warning:
Note:

oividedflowcomputedforthiscross-settion.
The conveyance ratio (upstream conveyance divided ily downstream conveyance) is leH than
0.7 or greater than 1.4. This m;o,y indicate the need for additional cross sections.
The ",nerg\, less 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.
Multiple critical depths Were found at this location. The critical depth with the lowest, valid,
surface was used.

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CROSS SECTION OUTPUT
~~~'II~~~v (~W
~;'~t ~:~~ l:g
E.G. Slope (ft/ft)
QTotal (cfs)
~~~ *1~~~ m~S)
11...1< C\\l D~,,-h (f'L)
conv.Total (cfs)
lengthwtd. (ft)
MinchEl (ft)
Alpha
~r~t~ ~~~~ ~m

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warning;
warning;
warning;
warning:
Note:

Divided flow computed for this cross-section.
The velocity head has changed by more than 0.5 ft (0 15m). This may indicate the need for
additional cross sections.
The conveyance ratio (upstream conveyance divided by downstrei\lllco nveyance) is less than
0.7ar,greater than 1.4. Thismayindicatetheneedforadditionalcrosssectiens.
~~~/~~~gln~~~~t:a~hr~:~dr f~~a:dJ;~i~~atOc~o~~' s~~~~~~. the current -ami previous cro-ss section.
Multiple critical depths were found at this location. The critical depth with the lowest, valid,
surface was used.

INPUT
Description;
Station Elevatlon aata ""- 235
<" Elev <" Elev ". Elev ". Elev "" E1",v
07822.49 8.,6 7821.>1 11.14 7821.19 17.59 7820.4 21.27819.94
35.65 7818.46 41.33 7817.87 61.47 7815.15 62.74 7815.02 80.878ll.29
81.67813.21 89.83 781<.42 91.66 7812.25 98.86 7811.56 101.717811.16
107.887810.54 111.79 7810.1 121.86 7809.07 125.94 7808.5 131.937807.96
134.977807.55 141.997806.59 152.06 7805.43 151.037805.12 161.527804.14
162.067804.27 171.09 7803.4 171.19 7803.3 182.257802.H 189.157801.27
192.32 7800.88 199.587799.54 200.66 7799.11 207.547799.62 210.167799.72
214.727799.77 223.>17799.83 227.92 7799.n 212.767798.62 241.397797.88
242.657797.81 249.21 7797.5 252.35 7797.16 262.787796.84 270.417796.17
272.85 7795.9 277.947795.04 218.9 7794.89 280.2 7793.65 283.487790.65
283.887790.83 287.297790.35 293.34 7789.99 29;'72 7789.77 295.93 7788.5
101.997787.25 304.85 7787 308.04 7786.7 112.91 7786.91 315.567786.96
323.17 7787.2 333.627787.21 342.64 7787.29 351.677787.64 360.77787.56
163.447787.57 365.82 7787.7 370.41 7787.55 373.5 7787.44 378.257787.12
3m.BI77S6.93 38:'.66 7786.6 411.7 7786.6 413.23 7787.14 418.887789.15
421.18 7790.07 423.567789.42 423.8J 7789.13 424.487789.17 432.597786.94
441.977786.54 4517786.32 454.03 7786.25 460.02 7786.1 464.097786.12
468.627786.32 472.1l 7786.35 473.35 7786.62 474.16 7786.78 480.457788.19
483.25 7788.5 487.87788.44 494.29 7788.22 496.13 7788.33 497.19 7788.4
50,.387787.51 504.367787.34 505.72 7786.98 508.237787.15 514.277787.84
517.617788.23 524.497787.83 526.317787.74 534.347787.25 544.627787.82
549.3> 7788.18 5>1.987788.34 :'52.97788.27 554.687788.15 559.35 7787.92
5667787.71 S69.H 7786.15 57J.747783.72 574.33 7783.82 574.82 7783.91
577.47784.37 580.237784.89 583.847785.43 585.05 7785.6 588.917786.24
589.25 7786.3 598.97786.43 605.47 7786.7 611.67 7787 6167787.08
620.717786.98 628.567787.03 630.74 7787.09 633.2 7786.35 637.15 7785.15
638.817784.75 680.92 7784.8 681.71 7784.91 688.297785.05 690.47 7785.38
696.47785,19 700.47 7785.4 706.117785.44 712.477785.17 714.22 7785.04
/20.&6:17M.06 /24.47 77113.62 /29./177113.62 736.587787.28 739.477787.29
744.637787.34 752.147787.43 760.717787.63 763.05 7787.69 770.177787.77
776.797787.83 780.71 7787.9 788.4 7787.97 794.29 7788.13 798.497788.19
808.577788.46 818.65 7788.54 821.17788.55 828.73 7788.55 838.517788.81
847.917788.99 856.857789.1] 858.97 7789.16 865.79 7789.21 869.067789.25
874.73 7789.3 879.147789.33 883.66 7789.4 889.22 7789.44 892.6 7789.47
899.37789.52 901.547789.53 909.387789.59 937.297789.63 939.637789.55
"'49".717789.52 9,9.79 7789.l 9"64.17788.93 969.877788.69 973,047788.62
979.957788.62 990.047788.42 1010.2 7788.42 1017.73 7788.38 1030.367788.38
1040.447788.241044.547788.231050.537788 " 1053.117788.12 1054.647788.41
1060.617790.221062.427790.711070.697793.36 1074 7794.45 1075.45 7794.95
1096.927795.231099.897794.081100.937793.66 1110.33 7790.18 1110.93 7789.95
1124.987790.141131.187790.161141.267789.941151.347789 92 1160.737789.56
1172.317789.521174.747789.51177.597789.461178.477789 SO 1181.597789.98
11B7.54 77<:lO.711l91.6J 7791.15 119"6.411 779"2.J6 1201.7) 779:' 08 1206.67797.56
1206.887797.711211.837797.71221.917797.541224.717797 " 1231.827800.55
1231.997800.63 1232.37800.761237.757803.12 1237.97803 " 1242.087803.42
1249.727803.75"1251.337804.491252.167804.861259.047808.47 1262.247810.01
1267.987812.991212.327815.911276.927819.751282.47824.4 1289.147828.62
Manning'S n v~lues ""~ 5
!OU n\l"l Sta n\/al m n Val ". n Val m n Val
o .06301.99 .05 538.81 .035 729.71 .05 1075.45 .06
Banksta; left Right lengths: Left channel Right Coeffcontr. Expan.
638.81 729.71 246,51 473.8 5n.5S .1 .3
Ineffective Flow num_ 3
Still sn R Elev Permanent
'" 421.U77<)O.OJ ,
page49

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CROSSSECTlON

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RIvER: Crystal
REACH; Marble

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crystalRiver.rep

profile'50-year
7790.20 Element
0.38 Wt. n-val.
7789.81 Reach Lefl. (ft)
7788.65 Flow Area (sq ft)
oig~~~~g ~~~: ~~1srt)
527.24 Topwidth(ft)
~:~g ~;~;'.V~1Pt~fl~g
34232.4 Con\/. (cfs)
395.76 wetted Per. (ftl
7785.61 shear (lb/sqft
1.82 Stream power (lIft s)
2.01 cum volume (acre-ft)
0.03 Cum SA (ac:res)

dlalll\el
0.035
4,0.16
154.98
154.98
1011.12
37.18
&.52
4.17
17042.3
37.18
0.92
5.98
41.78
10.25

Ri~~~5~B
2B.Ol
360.38
366.88
976.30
224.95
2.71
1.92
16455.4
189.22
0.42
1.13
13.30
9.7&

left 08
0.050
442.60
35.04
379.61
43.59
265.11
1.24
0.61
734.7
59.12
0.13
0.16
16.92
1O.7Q

Profi1eISO(}-year
1790.37 Element
0.21 Wt. n-val.
7790.15 Reachlen. (ft)
7790.13 Flow Area (sq ft)
02~~Fij~ :~~: ~~f!srt)
599.52 TOp Wldth ~ft)
t~~ ~~;..\I~1Pthfhg
52486.7 conv. (cfsJ
417.35 wetted per. UtI
7785.61 shear(lb/sqft
2.08 Stream power (1 1ft sJ
1.77 CumVoJume(acre-ft)
0.08 Cum SA (acres)

Left 08
a.o:.a
442.60
478.68
478.68
909.88
305.73
1.90
1.51
18988.8
310.39
0.22
0.42
22.96
14.41

Channel
0.035
450.16
167.56
167.56
930.06
37.18
5.55
4.'il
19409.9
37.18
0.65
3.59
47.4a
10.25

Ri%~&5~B
233.01
328.94
448.38
675.06
256.61
2.05
1.74
14088.1
190.13
0.25
0.51
19.61
11.25

RS; 9086

water

water

water