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

~g:~~:~~m~:g~~~~~n:i~~d:l~V~pe _ g ~~~l~: ~~ l:g ::~~l~:l
:~t:~~o~1~~w:C1~hs~~T~r~f~;eb:~rn:eir flow: 7935::~
~~~f~~a~e~~; u~~d u~~dsf~ 1 ~::rg~eSi gn :

wei r crest seape = Broad crested

Number of aridgecoefficient Sets - 1

Low Flow Methods and Data
Energy
selected Low Flow Methods... Highest Energy Answer

Hi gh Flow Method
Energy only

Additional Bri dge Parameters
Add Fri cti on component to Momentum
Do not add weight comlKl'nent to Momentum
class B flow critical depth computations use critical depth
inside the bridge at the upstream end
Criteria to check for pressure flow - Upstream energy grade line

BRIDGE OUTPUT Profi le #100-year

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RIVER: crystal
REACH: Marble

RS: 18573

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INPUT
Description: BRIDGE NO. 3 - TOWN OF MARBLE
D1 stance froll upstream xs - 5.25
Deck/Roadway Wi dth 25
wei r coeffi ci ent = 2.6
upstream Deck/Roadway coord; nates
nurn- 20
Sta Hi cord La cord Sta Hi cord Lo cord
36.2 79J8.2 109 7936.2
132.1 7939.14 7933.14 187.4 79J8.7 79J2.7
211 7936.52 241 7936.26
304 7935.88 326 7936.24
387 7938.29 413 7939.82
474 7944.11 505 7946.57
559 7951.02 600 7951.02

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Upstream Bridge Cross section Data
Station Elevation Data nulJl=lo
Sta Elev Sta elev
o 7980.61 6.36 7972.61
15.597961.98 16.03 7961.39
25.757947.87 26.347947.01
42.587938.22 57.977937.87
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 793J.02 249.247933.04
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 7934.8 357.92 7934.89
377.92 7935.21 387.92 7936.01
417.92 7938.35 425.67 7938.61
445.67 7939.99 447.92 7940.13
475.67 7942.15 477.92 7942.32
497.92 7943.62 505.67 7944.23
525.677945.66 527.92 7945.79
555.67 7948.26 557.92 7948.44
577.92 7949.91 585.677950.47
605.67 7952.18 607.92 7952.41

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119
Sta Elev
7.67 7970.89
18.2 7957.89
27.57 7945.19
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
587.92 7950.63
610.16 7952.61

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Manning's n values num- 3
Sta n val Sta n val Sta
o .06 153.7 .OJ5 175.8

Bank Sta: 1~;~~ ~~~~i coeff con~~.
Ineffec,tive Flow num- 2
Sta L Sta R Elev Permanent
o 132.1 7936.2 T
187.4 614.167935.88 T

Expan.
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Downstream oeck/Roadway Coordi nates
nurn- 19
Sta Hi cord Lo Cord Sta Hi cord Lo cord
35 7936.8 58 7937.14
113.3 7938.7 7932.7 113.3 7936.7
168 7936.26 193 7935.9
266 7936.24 299 7937.03
355 7939.82 381 7941.63
4417946.57 4687948.72
510 7951.02

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Downstream Bridge Cross section Data
Station Elevation Data num- 70
Sta elev sta Elev Sta Elev
o 7958.47 2.97 7956.9 3.11 7956.83
14.867948.23 15.377947.87 16.14 7947.35
27.517940.31 31.83 7937.87 35.087936.75
45.52 7935.38 47.83 7935.38 53.32 7934.88
89.4 7919.92 101.2 7920.8 113.3 7928.8
128.347932.37 133.71 7933.01 135.05 7933.18
151.95 7934.76 153.68 7935 170.637934.92
215.79 7934.19 219.04 7934.22 225.62 7934.24
240.387934.48 257.647934.99 261.67 7935.03
310.95 7936.58 314.19 7936.7 320.03 7936.85
344.587937.89 392.147941.29 394.87941.47
418.867943.38 425.87943.92 440.257945.08
448.857945.74 454.21 7946.13 458.147946.47
472.327947.55 476.77947.93 482.72 7948.37

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Manni ng' s n values num- 3
sta n val Sta n val Sta
o .06 78.2 .035 101.2

Bank Sta: ~;~~ ~~t~~ coeff con~~.
tneffecti ve Flow nurn- 2
Sta L Sta R Elev Permanent
o 58 7936.8 T
113.3 510.04 7935.88 T

Expan.
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E.G. US. (ft~
W.S. US. (ft
Q Total (cfs
~ ~~~gM~~s)

Sta Hi cord Lo cord
132.17937.14
187.4 7936.7
270 7935.9
358 7937.03
438 7941.63
532 7948.72

Sta Elev
7.83 7970.71
20.54 7954.78
28.17944.77
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
457.92 7940.79
487.92 7943.05
515.67 7945.02
537.92 7946.49
567.92 7949.22
595.67 7951.3
614.16 7952.88

n val
.06

Sta Hi cord Lo cord
58 7939.14 7933.14
137.8 7936.52
236 7935.88
326 7938.29
41J 7944.11
497 7951. 02

Sta Elev
4.28 7955.96
23.43 7942.93
38.8 7935.46
55.4 7934.8
123.73 7932.69
136.57 7933.43
204.23 7934.22
233.06 7934.4
289.72 7935.72
327.65 7937.27
398.9 7941.8
445.34 7945.48
463.4 7946.85
505.74 7950.36

n val
.06

7930.89
7929.19
2181.00
2181.00

El ement
E.G. Eley ~ft~
w.~. Eley ft
Crlt w.s. ft
Max chl Dpth (ft)

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crystalR;yer,rep

Sta E1 ev
14.73 7963.34
23.65 7950.58
36.17 7938.35
89.83 7936.21
121.07 7934
153.7 7922.8
197.927935.42
208.13 7934.49
235.65 7933.18
267.1 7932.81
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
597.92 7951.46

sta Elev
8.19 7953.11
25.52 7941.54
39.22 7935.29
78.2 7920.8
125.347932.29
147.68 7934.46
210.38 7934.38
236.94 7934.42
300.37 7936.13
338.53 7937.54
406.45 7942.38
448.21 7945.69
466.91 7947.16
510.04 7950.79

Inside BR US
7930.57
7927.93
7927.93
8.01

Inside 8R OS
7929.52
7927; 80
7926.58
7.88

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