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

I

I

Crysta1River~rep
CROSS SECTION OUTPUT Profile #Floodway
~;,r' H~~~\m) 7931.32 El ement left 08 Channel Ri 8~~5gB
0.21 wt. n-val. 0.050 0.035
w.s. elev ~ft~ 7931.11 Reach Len. (ft) 216.69 205.74 150.30
crit W.S. ft Flow Area (sq ft) 382.38 256.91 47.85
e.G. slope (ft/ft) 0.000635 Area ~s? ft) 382 . 38 256.91 47.85
Q Total (cfs) 2181.00 Flow c s) 956.99 1143.68 80.33
TO~ Wi dth ~ ft) 95.00 TOp Width ~ft) 55.61 30.28 9.11
Ve Total ft/s) 3.17 AVS' vel. ft:/s~ 2.50 4.45 1.68
Max chl Dpth (ft~ 8.48 My r. Depth (ft 6.88 8.48 5.25
Conv. Total ~CfS 86523.2 Conv. (cfs) 37965.1 45371.5 3186.7
Length wtd. ft) 206.01 wetted Per. (ft~ 62.62 30.28 14.27
Mi n ch el (ft) 7922.63 shear (lb/sq ft 0.24 0.34 0.13
Alpha 1.31 Stream Power (1 /ft s) 0.61 1.50 0.22
Fretn loss ~m 0.28 Cum volume (acre-h) 20.70 81.98 15.27
C&ELoSS 0.15 Cum SA (acres) 7.93 19.43 6.46

I

I

I

warning: The velocity head has changed by more than 0.5 ft (0.15 m). TMs may indicate the need for
add; t; ona 1 cross sect; ons.
Warning; The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than
0.7 or greater than 1.4. This may indicate the nee(J for additional cross sections.

I

CROSS SECTION OUTPUT Prof; 1 e #lO-year
~;,r' H~~~v (m) 7929.78 El ement left 08 Channel Ri8~~5gB
0.05 wt. n-val. 0.051 0.035
w.s. elev (ft~ 7929.73 Reach Len. (ft) 216.69 205.74 150.30 '
crit w.s. (ft Flow Area (sq ft) 662.68 214.90 194.69
e.G. Slope (ft/ft) 0.000244 Area ~s? ft) 662.68 214.90 194.69
Q Total (cfs) 1657.00 Flow C 5) 951.43 526.60 178. 97
TO~ Width ~ft) 219.00 TOp Wi dth ~ft) 120.49 30.28 68.23
Ve Total ft/s) 1.55 AVS' vel. ft/s~ 1.44 2.45 0.92
Max chl Dpth (ft~ 7.10 My r. Depth (ft 5.50 7.10 2.85
Conv. Total ~cfs 106022.2 Conv. (cfs) 60876. 7 33694.4 11451.1
Length wtd. ft) 205 .02 wetted Per. (ft~ 121.76 30.28 71.40
Min ch el (ft) 7922.63 shear (lb/sq ft 0.08 0.11 0.04
Alpha 1.33 Stream Power (1 /ft s) 0.12 0.27 0.04
Frctn Loss ~ft) 0.13 Cum volume (acre-ft) 32.36 64.83 30.07
c & e Loss ft) 0.14 Cum SA (acres) 20.50 19.43 20.34
warni ng: The ve loci ty head has changed by more than O. S. ft (0.15 m). This may indicate the need for
additional cross sections.
warni ng: The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than
0.7 or greater than 1.4. This may indicate the neeil for additional cross sections.
CROSS SECTION OUTPUT Profile #SO-year
~;,r' H~~~v (m) 7930.78 El ement Left 08 channel Ri8~~5gB
0.05 wt. n-val. 0.051 0.035
w.s. Elev ~ft~ 7930.73 Reach Len. (ft) 216.69 205.74 150.30
crit W.S. ft Flow Area (sq ft) 784.49 245.23 263. 70
e.G. slope (ft/ft) 0.000209 Area ~s? ft) 784.49 245.23 263.70
Q Total (cfs) 2031.00 Flo\'( c 5) 1152.07 607.40 271.53
~~~ ~~~~ ~m5) 222.61 TOp Wi dth ~ft) 122.74 30.28 69.59
1.57 AVS' Vel. ft/s) 1.47 2.48 1.03
Max chl Dpth (ft~ 8.10 ~~n~: ~~~~~ (ft:) 6.39 8.10 3.79
Conv. Total (cfs 140389.5 79634.6 41985.8 18769.2
Length wtd. (ft) 204.10 Wetted Per. (ft~ 124.22 30.28 73.09
Min ch el (ft) 7922.63 shear (lb/sq ft 0.08 0.11 0.05
Alpha 1.30 Stream Power (l /ft s) 0.12 0.26 0.05
Frctn Loss ~ft~ 0.12 Cum Volume (acre-ft) 39.55 72.60 38.83
C&ELoss ft 0.16 Cum SA (acres) 22.59 19.43 23.76

I

I

I

I

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 need for additional cross sections.

I

CROSS SECTION OUTPUT Profi 1 e #SOO-year
~;,r'H~~~v(m) 7931. 97 Element Left 08 Channel Ri8~~5gB
0.05 Wt. n-val. 0.051 0.035
W.S. elev (ft) 7931. 92 Reach Len. (ft) 216.69 205.74 150. 30
Crit w.s. (ft) Flow Area (sq ft) 931. 75 281.21 347.37
E.G. slope (ft/ft) 0.000181 Area ~S? ft) 931.75 281.21 347.37
Q Total (cfs) 2515.00 Flow C 5) 1409.91 710.41 394.68
~~~ ~~~~~ m~5) 226.30 TOp Wi dth (ft) 124.81 30.28 71.20
1.61 AVS' Vel. (ft/s~ 1.51 2.53 1.14
Max ch 1 Dpth (ft~ 9.29 Hy r. Depth (ft 7.47 9.29 4.88
Cony. Total ~cfs 186742.8 Conv. (cfs) 104688.1 52749.4 29305.3
length wtd. ft) 203.17 wetted Per. (ft~ 126.63 30.28 74.98
Min Ch el (ft) 7922.63 shear (lb/sq ft: 0.08 0.11 0.05
Alpha 1.27 Stream Power (11ft s) 0.13 0.27 0.06
Fretn Loss ~m 0.10 Cum volume (acre-ft) 50.29 82.08 51.14
C&ELOSS 0.18 Cum SA (acres) 27.42 19.43 27.92

I

I

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.

CROSS SECTION

I

RIVER: crystal
REACH: Marble

RS: 18578

I

INPUT
Description:
station Elevation Data nUlll=
Sta Elev Sta Elev
o 7980.61 6.36 7972.61
15.59 7961.98 16.03 7961.39
25.75 7947.87 26.34 7947.01
42.58 7938.22 57.97 7937.87
95.11 7935.77 100.25 7935.4
121.88 7934.1 125.5 7933.83
163.8 7919.92 175.8 7922.8
198.77 7935.71 200.387935.92
210.38 7933.91 213.2 7933.81
246.08 7933.02 249.24 7933.04
277.92 7932.81 285.67 7932.94
299.75 7933.34 304.967933.46
318.96 7934.64 324.38 7934.83
330.14 7933.64 332.98 7933.37
349.74 7934.8 357.927934.89
377.92 7935.21 387.92 7936.01
417.92 7938.35 425.677938.61
445.67 7939.99 447.92 7940.13
475.677942.15 477.927942.32
497.92,7943.62 505.677944.23
525.677945.66 527.927945.79
555.677948.26 557.92 7948.44

119
Sta Elev
7.67 7970.89
18.2 7957.89
27.577945.19
61.69 7937.81
107.51 7934.48
130.32 7933.81
193 7932.8
206.68 7934.75
218.82 7933.73
256.96 7932.85
287.92 7932.97
308.76 7933.75
324.58 7934.77
337.92 7933.33
365.67 7934.96
395.67 7936.57
427.92 7938.68
455.67 7940.65
485.67 7942.88
507.92 7944.41
535.67 7946.36
565.67 7949.04

Sta Elev
7.837970.71
20.54 7954.78
28.1 7944.77
83.13 7937.4
114.8 7934.37
132.7 7932.8
195.67 7934.27
207.92 7934.55
226.3 7933.51
259.01 7932.84
289.85 7933.03
309.35 7933.81
326.7 7934.12
347.11 7934.69
367.92 7935
397.92 7936.75
435.67 7939.25
457.927940.79
487.92 7943.05
515.67 7945.02
537.92 7946.49
567.92 7949.22

Sta El ev
14.73 7963.34
23.65 7950.58
36.17 7938.35
89.83 7936.21
121.07 7934
153.7 7922.8
197.92 7935.42
208.13 7934. 49
235.65 7933.18
267.17932.81
297.49 7933.23
316.72 7934.53
327.92 7933.75
347.6 7934.75
375.67 7935.17
405.67 7937.31
437.92 7939.32
465.67 7941.35
495.67 7943.46
517.92 7945.2
547.92 7947.29
575.67 7949.73

Page 19

I

I

I

I