FLOOD10515

• County: Gunnison
• Community: Marble and Vicinity
• Stream Name: Crystal River
• Basin: Gunnison
• Title: Floodplain Information Report Crystal River - Technical Appendix
• Date: 5/1/2004
• Prepared For: Marble and CWCB
• Prepared By: ICON Engineering, Inc.
• Floodplain - Doc Type: Floodplain Report/Masterplan

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Alpha
Fretn loss
C & E loss

~m

2.15
1.12
0.01

Stream Powe~ (lb/ft s)
Cum volume (acre-ft)
Cum SA (acres)

0.20
104.28
43.29

c~~~alRfvero~;~
97.39 83.49
22.07 41.02

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Warn; ng:
Warn; ng:
Note:

Divided flow computed for this cross-section.
Theenerg~ 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.
Multiple critical depths were found at this location. The critical depth with the lowest. valid, water
surface was used.

CROSS SECTION

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RIVER: Crystal
REACH: Marble

RS: 20771

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INPUT
Oeser; ption:
Station Elevation Data num= 332
Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev
o 7966.81 2.24 7966.53 6.87 7965.86 8.55 7965.35 14.3 7963.78
18.277962.94 21.49 7962.3 26.147961.65 28.687961.35 30.437960.95
42.597958.19 43.05 7958.1 43.737957.88 50.247955.52 54.74 7953.9
57.43 7952.92 64.62 7950.91 66.97950.28 71.817948.75 78.917946.38
79.2 7946.3 88.787943.69 89.87 7943.4 96.57939.81 100.567937.55
103.36 7935.8 104.067935.39 107.35 7933.44 115.927933.33 123.597933.29
127.597931.65 130.567930.39 136.54 7928.2 166.81 7928.2 170.967928.54
176.3 7929 182.96 7929.51 184.65 7929.67 329.11 7929.67 332.56 7930.06
334.25 7930.22 342.75 7931.06 344.957931.27 358.637931.33 373.77931.28
377.937931.31 380.897931.32 382.947931.33 402.467931.32 407.257931.31
409.65 7931.31 413.11 7931.39 416.83 7931.44 419.417931.48 424.02 7931.49
430.69 7931.64 445.59 7931.73 459.96 7931.67 465.87 7931.76 480.19 7932.23
483.46 7932.4 488.71 7932.66 497.697932.52 499.857932.48 502.377931.75
504.73 7931.19 509.497930.11 516.327930.18 518.647930.22 528.17930.36
530.08 7930.48 532.63 7931.06 534.44 7931.55 538.25 7931.47 540.97 7931.42
546.22 7931.49 560.59 7931.58 565.287931.59 567.787931.59 571.41 7931.57
576.64 7931.4 578.15 7931.25 588.57 7929 589 7928.9 591l.45 7928.65
605.82 7928.71 611.92 7928.72 613.29 7928.99 616.71 7930.43 621.72 7930.43
624.6 7930.42 629.09 7930.38 631.12 7930.35 634.62 7930.32 641.78 7928.99
642.42 7928.87 643.68 7928.64 655.31 7928.68 665.917928.67 666.99 7929.18
669.31 7930.27 671.22 7931.16 673.92 7930.89 676.59 7930.65 680.72 7930.26
684.09 7930.25 686.59 7930.33 693.8 7930.5 696.59 7930.63 704.27 7930.83
706.237931.58 707.15 7931.94 713.277934.52 714.077934.33 715.667933.87
720.07 7933 722.12 7932.6 723.797932.05 725.33 7931.64 726.427931.17
732.87 7931.23 743.8 7931.66 746.59 7931.71 749.217931.75 754.34 7931.46
756.59 7931.3 761.42 7930.83 762.3 7930.77 766.637931.25 773.037932.81
774.197933.03 776.597933.66 781.357935.12 783.697935.57 784.367935.44
786.597934.95 793.87933.78 796.597933.31 797.057933.23 798.687933.07
806.747933.08 807.457932.99 813.157931.01 815.86 7931.4 816.597931.52
823.99 7932.59 824.67 7932.68 833.8 7932.75 836.59 7932.78 843.8 7933.03
846.59 7933.1 853.87933.15 856.597933.22 859.397933.28 885.27933.67
893.8 7933.7 896.59 7933.7 903.87933.75 913.87933.75 916.597933.77
923.8 7933.81 926.59 7933.83 933.8 7933.98 936.59 7934.03 943.87934.17
946.59 7934.23 956.59 7934.56 963.8 7934.7 966.59 7934.79 973.8 7934.94
976.59 7934.99 983.8 7935.04 986.59 7935.09 993.8 7935.29 1006.59 7935.62
1020.44 7935.92 1026.72 7936.09 1030.05 7936.31 1032.87 7936.93 1033.82 7937.15
1036.6 7937.61039.967938.22 1041.48 7938.12 1043.72 7938.111048.44 7938
1049.227938.06105$.25 7937.88 1055.74 7938.02 1056.447938.171057.297938.36
1059.417938.781063.82 7939.66 1069.61 7939.91070.937939.961071.347939.84
1076.597938.23 1079.03 7937.49 1079.64 7937.3 1086.59 7937.5 1093.87937.67
1096.59 7937.74 1103.87937.83 1106.59 7937.91108.13 7937.95 1111.52 7937.9
1118.64 7938.19 1130.7 7938.44 1136.59 7938.58 1143.8 7938.9 1146.59 7938.95
1153.87939.381166.597939.88 1170.2 7939.98 1173.87940.071186.597940.75
1193.4 7940.88 1196.59 7940.9 1209.39 7941.07 1216.59 7941.29 1223.8 7941.48
1226.597941.59 1233.87942.111236.597942.181240.477942.641246.457942.85
1252.42 7942.96 1263.8 7942.81266.597942.77 1273.87943.05 1283.87943.12
1286.59 7943.13 1296.59 7943.53 1303.8 7943.67 1306.59 7943.78 1313.8 7943.92
1323.8 7944.06 1326.59 7944.09 1346.59 7944.23 1353.8 7944.37 1366.86 7945.08
1368.85 7944.87 1375.69 7944.31 1383.8 7944.35 1386.59 7944.4 1391.47 7944.68
1392.577944.741403.437944.711404.457944.78 1416.59 7945.64 1420.857945.91
1426.597946.071436.59 7946.54 1443.87946.681456.597947.27 1463.87947.46
1466.597947.59 1473.87947.82 1486.597947.91 1503.87948.141506.597948.17
1513.8 7948.27 1516.59 7948.29 1523.8 7948.33 1526.597948.35 1533.8 7948.69
1536.597948.81 1543.87948.961546.597949.08 1553.87949.46 1563.8 7949.6
1566.59 7949.63 1576.59 7950.23 1583.8 7950.46 1586.59 7950.63 1593.8 7950.92
1596.597950.95 1603.87951.05 1606.59 7951.08 1646.597951.08 1653.87950.99
1656.597950.95 1663.87950.95 1666.59 7950.92 1673.87950.551676.59 7950.5
1681.68 7950.42 1692.79 7950.14 1701.05 7950.03 1705.187950.651706.597950.81
1712.29 7951. 75 1716.59 7951.8 1726.59 7951.95 1733.8 7952.311736.59 7952.38
1743.8 7952.61746.597952.67 1753.87953.041756.597953.291763.72 7953.76
1764.63 7953.92 1766.59 7954.47 1773.87956.391776.597956.981778.77 7957.45
1781.947958.121783.787958.011786.597957.83 1793.87957.681796.597957.59
1798.87957.561803.837957.661806.597957.87 1816.59 7957.94 1823.87957.79
1826.597957.81 1833.87957.621846.59 7957.2 1863.87957.651866.597957.73
1873.87957.951876.597958.061878.867958.12 1882.397958.17 1883.77958.34
1886.59 7958.72 1893.8 7959.741896.597960.22 19113.8 7961.55 1906.59 7962.1
1913.8 79641919.77 7966.65

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Manning's. n values nurn"" 5
Sta n val Sto n val Sto n val Sta n val Sta n val
0 .06 115.92 .05 590.45 .035 611.92 .05 714.07 .06
Bank Sta: Left Right Lengths: Left channel Right coeff Contr. Expan.
590.45 611. 92 739.92 866.01 800.58 .1 .3
Ineffective Flow num= 2
Sta l Sta R Elev Pe rmanent
0 485.01 7935.76 F
714.2 1919.77 7934.67 F
CROSS SECTION OUTPUT Profi 1 e #lOO-year
~~r' H~~~v (m) 7933.05 E1 ement Left 08 channel Rit~5g.
0.22 wt. n-va1. 0.050 0.035
W.S. Elev (ft) 7932.82 Reach Len. (ft) 739.92 866.01 800.58
crit W.s. (ft) 7931. 82 Flow Area (sq ft) 172.85 88.73 277.55
E.G. slo~e (ft/ft) 0.002589 ~~~: ~~Mt) 1082. 59 88.73 362.90
Q Total (cfs) 1691. 00 361.76 493 .62 835.62
TO~ wi dth ~ft) 666.53 TOp wi dth ~ ft) 465.72 21.47 179. 34
Ve Total ft/s) 3.14 AVS' vel. ft/s~ 2.09 5.56 3.01
Max ch 1 opth (ft~ 4.62 Hy r. oepth (ft 1.64 4.13 2.85
Conv. Total (cfs 33234.2 Conv. (cfs) 7109.8 9701.5 16423.0
Length wtd. (ft) 827.08 wetted 'Per. (ft~ 106.16 21.47 98.79
Mfn Ch El (ft) 7928.65 shear (1 b/sq ft 0.26 0.67 0.45
Alpha 1.47 Stream Power (11ft s) 0.55 3.72 1.37
Frctn Loss (ft~ 1.58 Cum volume (acre-ft) 74.03 87.98 58.40
C &0 E LosS (ft 0.01 Cum SA (acres) 33.28 21.81 30.77

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warning: Divided flow computed for this cross-section.
Warni ng: i~f s e~:~gl n~~~:t:a~h~ r~::~r f~~~d~i ~i ~~a ~o ~~o:~ . s~~~:~~. the cu.'"rent and previous cross secti on.
Note: Multiple critical depths were found at this location. The critical depth with the lowest, valid, water
surface was used.
CROSS SECTION OUTPUT Prof;}e #Floodway

~~r' H~~~v (~i~)

7934.10
0.41

Element
Wt. n-val.

left 08
0.050

C~~~~~l Rig~~5g.
Page 14

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