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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=: gg:~ e~ia (~Mt)
coef of Q
Br Se 1 Method

495.15
6.B5
Energy only

Fretn Loss (ft!
C " E Loss eft
shear Total (1 /sq ft)
power Total (lb/ft 5)

crystal River-. rep
0.05 0.02
0.10 0.02
1.06 0.76
7.27 4.62

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CROSS SECTION

RIVER : crystal
REACH: Marble

R5: 23204

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INPUT
Description:
Stat; on E1 evati on Data Ol.tm-
staElev Sta Elev
o 7967.08 .48 7966.93
20.04 7964.89 28.37 7964.04
45.33 7962.07 46.54 7961.99
74.23 7960.58 79.93 7960.39
103.887958.81 117.72 7957.92
137.387956.82 139.067956.72
163.77 7955.53 173.72 7955.01
186.64 7954.19 192. 76 7953.94
217.35 7952.98 220.46 7952.B
238.75 7950.95 247 7950.33
273.21 7949.49 288.9 7949.18
301.357947.72 303.527947.59
322.867946.95 327.45 7947
346.33 7946.62 348.99 7946.66
372.057947.45 376.397947.72
387.41 7948.47 393.24 7948.88
407.32 7947.0B 408.247946.98
450.19 7945.95 455.85 7946.25
476.23 7948.04 479.78 7947.8
491.067947.28 499.31 7946.91
524.317947.02 528.667947.25
542.76 7948.1 544.947948.27
565.59 7948.86 570.89 794B.99
606.7 7949.84 608.06 7949.89
628.47 7950.3 632.11 7950.2
659.68 7950.56 662.89 7950.65
685.787950.71 696.547945.57
727 7937.25 749 7938
764.06 7948.51 767.16 7949.71
777.36 7951.15 780.29 7951.6B
800.05 7951.95 805.3 7952.07
821.96 7952.89 825.31 7953.07
845.31 7953.46 849.12 7953.52
875.32 7954.11 888.38 7954.19
912.16 7954.44 914.07 7954.78
935.33 7960.4 942 7961.75
948.06 7963.11 954.17 7963.17

182
Sta Elev
7.71 7966.36
32.02 7963.63
55.97 7961.35
82.87 7960.19
119.21 7957.85
146.44 7956.25
174.97 7954.95
197.067953.93
226.2 7952.53
258.31 7950.03
293.91 7949.07
306.87 7947.18
331.69 7947.07
354.61 7946.83
380.86 7948.02
395.6 7948.5
410.4 7946.81
458.47 7946.52
4B2.63 7947.62
505.41 7946.72
531.21 7947.42
551.63 7948.6
588.08 7949,36
617.9 7950.17
640.19 7950.29
672.28 7951.13
697.43 7945.06
755.27 7944.19
769.7 7949.97
785.87 7951.67
809.87 7952.19
829.49 7953.2
855.31 7953.75
895.32 7954.31
916.95 7955.54
944.11 7962.2

Sta Elev
8.43 7966.24
36.94 7963.14
58. 72 7961.17
91.91 7959.69
127.84 7957.42
153.77 7955.76
175.75 7954.9
199.8 7953.79
233.6 7951.56
266.35 7949.73
295.64 7948.67
312.98 7947.13
334.15 7947
362.95 7947.13
381. 7 7948.08
399.32 7948.15
413. 39 7946.54
463.93 7946.95
484.67 7947.53
513.45 7946.5
535.587947.72
554.85 7948.66
589.747949.41
619.36 7950.24
647.38 7950.32
675.95 7951.31
701.517943.16
755.8 7944.36
771. 88 7950.11
791.32 7951.6
815.317952.25
835.31 7953.56
858.94 7953.85
898.19 7954.34
922.93 7957.18
946. 58 7962.69

sta Elev
10.2 7966.16
43.77 7962.18
67.95 7960.75
101.04 7959.01
131.31 7957.17
155.55 7955.7
181.84 7954.57
211.18 7953.29
236.32 7951.14
269.07 7949.62
298.14 7948.42
316.87 7946.81
339.22 7946.87
367. 36 7947.27
386.17 7948. 38
400.8 7947.9
420.49 7945.95
472. 56 7948.27
487.86 7947.37
515.99 7946.63
537.24 7947.81
560.83 7948.71
596.88 7949.55
623.98 7950.44
651.54 7950.29
683.95 7951.72
706 7938
758.33 7945.54
775.3 7950.72
794.65 7951.76
817.48 7952.37
839.31 7953.46
868.75 7954.14
905.32 7954.4
925.53 7957.88
947.48 7962.93

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Manning' 5 n values num= 3
Sta n val Sta n val Sta n val
0 .06 706 .035 749 .06
Bank Sta: Left Rim Lengths: Left Channel Right: coeff Contr. Expan.
706 467.46 479.73 474.53 .3 .5
Ineffective Flow num= 2
Sta L sta R Elev Permanent
0 694 7945.95 T
762 954.17 7951 T
CROSS SECTION OUTPUT Profile #lOO-year
~;,r' H:~~v (m) 7944.57 El ement Left OB Channel Ri8~~~B
0.53 wt. n-val. 0.060 0.035
w.s. Elev ~ft~ 7944.04 Reach Len. (ft) 467.46 479.73 474.53
Crit W.S. ft Flow Area (sq ft) 16.37 275.87 18.48
E.G. slo~e (ft/ft) 0.001637 Area ~s, ft) 16.37 275.87 18.48
Q Total (cfs) 1691. 00 Flow C 5) 24.58 1635.58 30.84
TOV width ~ft) 55.50 Top wi dth (ft) 6.38 43.00 6.12
ve Total ft/s) 5.44 AV~. vel. (ft/sl 1.50 5.93 1.67
Max chI Dpth (ft~ 6.79 Hy r. Depth (ft 2.57 6.42 3.02
conv. Total (cfs 41790.6 Conv. (cfs) 607.4 40421.0 762.2
Length wtd. (ft) 478.85 wetted Per. (ft~ 8.93 43.03 8.60
Mi n ch El (ft) 7937.25 shear (lb/sq ft 0.19 0.66 0.22
Alpha 1.15 Stream Power (11ft 5) 0.28 3.89 0.37
Fretn Loss ~ft~ 1. 52 Cum volume (acre-ft) 103.82 99.28 182.73
C & E Loss ft 0.19 Cum SA (acres) 48.86 25.89 66.38

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warning:
Warn; og:
Warn; og:

The velocity head has changed by more than 0.5 ft (0.15 m). This may indicate the need for
additional cross sections.
The conveyance ratio (upstream conveyance divided by downstreaJI conveyance) is less than
0.7 or greater than 1.4. This may indicate the neeCl for additional cross sections.
The energy loss was greater than 1.0 ft (0.3 m). between the current and previous cr055 section.
This may lndicate the need for additional cross sections.

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CROSS SECTION OUTPUT Prof; 1 e NFl Gadway
~;, r' H:~~v (~iP 7944.70 El ement Left 08 Channel Ri 8~~6gB
0.\0 Wt. n-Val. 0.060 0.035
W.~. Elev ~ft~ 7944.20 Reach Len. (ft) 467.46 479.73 474.53
Crlt W.S. ft Flow Area (sq ft) 17.21 282.52 19.36
E.G. slo~e (ft/ft) 0.001508 :{~: ~~Mt) 17.21 282.52 19.36
Q Total (cfs) 1691.00 25.99 1633.15 31.85
TOV wi dth ~ ft) 54,72 TOp width ~ft) 5.85 43.00 5.87
Ve Total ft/s) 5.30 AV~. vel. ft/s~ 1.51 5.78 1.65
Max chl Dpth (ft) 6.95 Hy r. Depth (ft 2.94 6.57 3.30
Conv. Total (cfs) 43549.1 Conv. (cfs) 669.4 42059.4 820.3
Length wtd. (ft) 478.92 Wetted Per. (ft~ 8.74 43.03 8.65
Min Ch El (ft) 7937.25 shear (lb/sq ft 0.19 0.62 0.21
Alpha 1.15 Stream Power (l /ft s) 0.28 3.57 0.35
Fretn LoSS ~fts 1.47 Cum volume (acre-ft) 30.31 109. 38 22.59
C&tELa55 ft 0.23 Cum SA (acres) 12.16 25.89 8.22

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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) is less than
0.7 or greater than 1.4. This may indicate the neei:l for additional cross sections.
warning: The energy loss was greater than 1.0 ft (0.3 m). be1:Ween the current and previous cross section.
This may lndicatethe need for additional cross sections.

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CROSS SECTION OUTPUT Prof; 1 e IlD-year
~;,r' H:~~v (~g> 7943.79 El ement Left OB channel Ri 8~~6gB
0.38 wt. n-val. 0.060 0.035
w.s. Elev ~ft~ 7943.40 Reach Len. (ft) 467.46 479.73 474.53
crit W.S. ft Flow Area (sq ft) 12.74 248.51 14.79
E.G. Slope (ft/ft) 0.001347 Area ~s, ft) 12.74 248.51 14.79
Q Total (cfs) 1284.00 Flow C 5) 16.62 1246.59 20.79
TOV wi dth ~ft) 53.49 TOp wi dth (ft) 5.01 43.00 5.47
ve Total ft/s) 4.65 AVS' vel. (ft/S~ 1.30 5.02 1.41
Max chI Dpth (ft~ 6.15 Ny r. Depth (ft 2.54 5.78 2.70
Conv. Total (cfs 34982.6 Conv. (cfs) 452.7 33963.4 566.5
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