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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Length wtd. (ft)
..;n ch E1 (ft)
Alpha
Fret" Loss (ft)
c &0 E LosS (ft)

479.14
7937.25
1.13
1.32
0.18

Wetted Per. (ft)
~~~:~ (~~~ m/ft s)
c... Volume (acre-ft)
Cum SA (acres)

7.42
0.14
0.19
80.87
43.62

~r'g~alR;Ver{:~
0.49 0.16
2.44 0.23
84.11 153.53
25.89 59.52

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warn;n9: The ve10dty head has changed by more than 0.5 ft (0.15 m). This may indicate the need for
additional cross sections.
Warning: The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than
0.7 or greater than 1.4. This may indicate the neeCl for additional cross sections.
Warning: The energ~ 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.

CROSS SECTION OUTPUT Prof; 1 e #SO-year

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M'H~~~V(~W 7944. 34 El ement left 08 Channel R; 8~~6~B
0.49 wt. n-VaL 0.060 0.035
W.S. E1ev ~ft~ 7943.85 Reach len. (ft) 467.46 479.73 474.53
Crit w.s. ft Flow Area (sq ft) 15.16 267.47 17.30
E.G. Slope (ft/ft) 0.00157B ;1= ~~1s~t) 15.16 267.47 17.30
Q Total (cfs) 1575.00 22.01 1525.25 27.74
TO~ W; dth ~ ft) 54.88 Tap Wi dth (ft) 5.96 43.00 5.92
Ve Total ft/s) 5.25 AV~. vel. (ft/s~ 1.45 5.70 1.60
..ax ch1 Opth (ft~ 6.60 ~n~: ~~~~~ (ft 2.54 6.22 2.92
Conv. Total ~cfs 39643.2 554.0 38390.9 698.3
length wtd. ft) 478.90 wetted Per. (ft~ 8.46 43.03 8.32
..; n ch E1 (ft) 7937.25 shear (lb/sq ft 0.18 0.61 0.20
Alpha 1.14 Stream Power (11ft s) 0.26 3.49 0.33
Fretn LoSS ~m 1.46 Cum volume (acre-ft) 96.99 95.22 174.46
carE Loss 0.17 Cum SA (acres) 47.61 25.89 64.64

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Warning: The velocity head has changed by more than 0.5 ft (0.15 m). This may indicate the need for
additional cross sections.
warning: The conveyance ratio (upstream conveyance divided by downstream conveyance).;s less than
0.7 or greater than 1.4. This may indicate the neeil for additional cross sections.
warning: i~is e~:~grn~~~:t:a~h~r::;~r f~~a~d~i~i:~afO~~o~~. s~~~:~. the current and previous cross section.

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CROSS SECTI:ON OUTPUT Profile 'SOO-year
~.;~. H~~~V (m) 7945.07 El ement Left 08 channel Ri 8~~6~8
0.62 wt. n-Val. 0.060 0.035
w.s. Elev ~ft~ 7944.45 Reach len. (ft) 467.46 479.73 474.53
crit W.S. ft Flow Area (sq ft) 19.18 293.61 21.16
E.G. Slope (ft/ft) 0.001761 ~~~~ ~~Mt) 19.18 293.61 21.16
Q Total (cfs) 1950.00 30.98 1881.75 37.27
TO~ Wi dth ~ft) 57.27 Tap Wldth (ft) 7.27 43.00 7.00
Ve Total ft/s) 5.84 AV~. vel. (ft/s~ 1.61 6.41 1. 76
..ax ch1 opth (ft~ 7.20 Hy r. oepth (ft 2.64 6.83 3.02
Conv. Total ~cfs 46472.4 Cony. (cfs) 738.4 44845.8 888.3
length wtd. ft) 478.76 wetted Pel'. (ft~ 9.90 43.03 9.59
..;n ch E1 (ft) 7937.25 shear (lb/sq ft 0.21 0.75 0.24
Alpha 1.17 Stream Power (1 1ft s) 0.34 4.81 0.43
Frctn Loss ~m 1.65 Cum volume (acre-ft) 118.85 107.61 201. 08
C & ELoss 0.21 Cum SA (acres) 52.44 25.89 70.75

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The velocity head has changed by more than 0.5 ft (0.15 II). This may indicate the need for
additional cross sections.
The conveyance. ratio (upstream conveyance divided by downstream conveyance) is less than
0.7 or greater than 1.4. This may indicate the need for additional cross sections.
i~~ s e~:~g~ n~~~:t:a~h~r~:~~r f~~a~d3i ~i~~a fO c~o:~ . s~~~~~. the current and previ ous cross secti on.
CROSS SECTION

warni n9:

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warni n9:
warni n9:

RIVER : crystal
REACH: Marble

RS: 22724

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INPUT
oescri ption:
station Elevation Data nulJl:z 261
Sta Elev Sta Elev Sta Elav Sta Elev sta Elev
o 7990.68 12.11 7992.24 13.09 7992.37 14.22 7992.51 26.16 7989.98
27.82 7989.48 38.837986.54 43.53 7984.9 51.8 7982.07 59.247979.59
64.497977.77 65.06 7977.57 70.5 7975.76 90.667969.27 90.88 7969.2
103.677964.97 106.37 7964.1 116.63 7960.85 120.5 7959.63 120.9 7959.5
123.45 7956.83 129.08 7950.55 132.84 7945.69 137.79 7945.19 142.56 7945.08
147.67 7945.14 153.5 7945.33 155.53 7945.4 161.477945.35 168.397945.27
176.29 7945.3 181.45 7945.29 184.487945.27 194.437945.25 199.147945.23
204.36 7945.22 207.397945.22 216.34 7945.2 218.617945.21 222.5 7945.22
232.05 7945.27 240.25 7945.35 246.14 7945.38 259.25 7945.41 261.39 7945.38
263.47 7945.37 272.22 7945.22 277.057945.17 285.197945.02 294.897945.23
298.16 7945.26 310.67945.46 326.31 7945.45 337.05 7945.65 339.477945.68
342.02 7945.76 350.02 7945.87 357.73 7945.94 362.997945.97 373.447946.01
375.95 7946.03 387.83 7945.56 389.027945.51 401.897945.83 409.197945.95
413.487946.16 414.85 7946.35 420.577946.88 429.77947.19 432.387947.29
435.44 7947.38 441. 38 7947.58 450.99 7947.46 466.89 7947.15 473 .17 7947.01
479.65 7946.91 483.49 7946.9 491.547946.86 500.57946.84 506.527946.87
513.847946.87 518.05 7946.94 523.387946.94 524.197946.99 528.567947.37
531.14 7947.2 533.2 7947.07 537 7946.81 544.25 7946 545.447945.93
553.747944.95 554.567944.59 556.77943.72 560.42 7942.18 564.847941.33
567.947940.53 569.517940.72 574.02 7941.38 583.897942.46 592.177942.42
595.62 7942.42 607.57 7942.4 611.92 7942.35 620.247942.21 628.21 7942
632.9 7941.98 649.26 7941.88 658.23 7941.89 660.81 7941.85 670.9 7941.71
677.17941.49 683.577941.15 693.47940.96 696.23 7940.92 706.11 7940.8
708.97940.76 721.567940.83 725.997940.96 734.22 7940.95 744.917940.46
747.367939.97 751.36 7939 754.457938.23 754.77 7938.13 798.327938.13
798.667938.22 805.2 7940.02 807.477940.68 810.22 7941.46 818.55 7943.85
821.72 7943.78 823.77 7943.74 835.55 7943.75 838.67943.76 841.14 7943.4
848.217941.86 856.36 7940.36 860.887940.25 872.65 7941 878.627941.34
881.877940.73 887.71 7940.35 892.73 7939.92 899.12 7939.96 901.227939.96
906.96 7939.98 911.69 7940.14 914.71 7940.17 918.55 7940.33 922.987940.58
930.22 7940.95 932.8 7941.01 934.7 7941.08 938.95 7941.23 944.96 7940.94
954.86 7940.94 957.44' 7941.11 963.017941.01 966.22 7940.94 969.047940.91
974.02 7940.76 981.06 7940.69 988.56 7940.52 993.01 7940.45 996.077940.38
1003.97 7940.25 1011.62' 7940.22 1016.01 7940.27 1018.13 7940.3 1022.23 7940.35
1024.26 7940.37 1026.95 7940.39 1035.09 7940.17 1039.17 7940.03 1040.21 7939.97
1050.747939.941053.797939.911061.927939.86 1068.79 7939.74 1073.07 7939.71
1076.287939.63 1079.3 7939.58 1084.26 7939.35 1085.48 7939.31090.697938.92
1096.35 7938.98 1101.55 7938.96 1107.39 7939.14 1110.49 7939.07 1112.54 7938.98
1116.35 7938.831120.787938.741132.23 7938.34 1136.75 7938.06 1145.87 7938.33
1151.147938.341156.357938.45 1161.14 7938.45 1166.35 7938.57 1171.14 7938.52
1176.35 7938.73 1186.35 7938.621196.35 7938.64 1201.14 7938.66 1206.35 7938.66
1211.14 7938.72 1216.35 7938.75 1221.14 7938.82 1226.35 7938.881241.147938.77
1246.35 7938.751266.35' 7938.61271.147938.631276.35 7938.591286.357938.67
1296.35 7938.441306.35 7938.181311.147938.221316.35 7938.17 1326.35 7938.25
1331.14 7938.13 1341.14 7937.9 1346.35 7937.77 1356.35 7937.79 1361.14 7937.81
1371.147937.77 1376.35 7937.811386.35 7937.77 1401.14 7937.59 1406.35 7937.61
1411.147937.371416.35 7937.28 1426.35 7936.77 1434.44 7936.33 1436.66 7936.32
2539.83 7936.322540.15 7936.392546.35 7937.742552.08 7939.42 2553.56 7939.87
2568.967939.92 2574.47939.922581.14 7941.82586.357943.312589.957944.27
2590.23 7944.33 2596.35 7945.53 2601.14 7946.55 2606.35 7947.612621.147951.22
2626.35 7952.472631.147953.392636.357954.692636.63 7954.812639.067955.62
2642.08 7956.31 2646.35 7957.46 2661.14 7961.96 2666.35 7963.27 2676.35 7966.7
2676.64 7966.83

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