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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~~i~l~~~s~e~~~~.used in design

Number of pi ers = 1
pi er Data
pier station
Upstream
wi dth
2
OOwnst ream
wi dth
2

crystal River. rep

- Broad crested

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upstream=- 702
num- 2
Elev width Elev
o 2 7948.5
num.;. 2
Elev width Elev
o 2 7948.5

Downstream-

720

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Number of Bridge coefficient Sets _

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

High Flow Method
Energy only

Add; ti ona 1 8ri dge Parameters
Add Fri cti on component to MOmentum
Do not add We; ght component 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 Prof; 1 e #100-year

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E.G. US. ~ft~ 7944.78 el ement Ins; de BR US Ins; de 8R OS
W.S. US. ft 7944.10 E.G. Elev rt~ 7944.74 7944.61
Q Total (cfs 1691.00 W.S. Elev ft 7943.99 7944.04
g :~i~gM~js) 1691. 00 crit w..s. ft 7941. 85 7941. 39
Max chl Dpth 1ft) 6.74 6.78
weir Sta Lft (ft) vel Total ~ft s) 6.41 5.69
wei r Sta Rgt (ft) Flow Area sq ft) 263.98 297.32
We; r submerg Froude # ch 1 0.51 0.43
wei r Max Depth (ft) specif Force (cu ft) 1142 . 71 U26.09
Min El weir Flow (ft) 7947.38 Hydr Depth ~ft~ 5.24 5.56
Olin El Prs (ft) 7948.25 W.P. Total ft 67.81 71.60
Delta EG ~ft~ 0.21 Cony. Total (cfs) 27343.6 33318.1
Delta ws ft 0.06 TOp wi dth (ft) 50.39 53.48
:: ~C:~ e~~a (~~Mt) 495.15 Frctn Loss ~ft~ 0.04 0.01
6.41 C&ELOSS ft 0.09 0.02
coef of Q shear Total P Isq ft) 0.93 0.67
Sr 5el Method Energy only Power Total lb/ft s) 5.95 3.80
BRIDGE OUTPUT Prof; 1 e #Floadway
E.G. US. (ft~ 7944.89 element Inside BR US Inside BR OS
W.S. US. (ft 7944.24 E.G. Elev ~ft~ 7944.86 7944.73
Q Total (cfs 1691. 00 w.s. Elev ft 7944.15 7944.19
g :~~~g(c}~rs) . 1691. 00 crit W.S. ft 7941. 85 7941. 39
Max Ch 1 Dpth jft) 6.90 6.94
weir Sta Lft ~ft:~ vel Total ~ft s) 6.23 5.54
wei r Sta Rgt ft Flow Area sq ft) 271.34 305.47
wei r submerg Froude # ch 1 0.48 0.41
wei r Max Depth (ft) spedf Force (cu ft) 1173.88 U64.18
Min El Weir Flow (ft) 7951. 01 Hydr Depth ~ ft~ 5.51 5.79
MinEl prs (ft) 7948.25 W.P. Total ft 66.85 71.00
g:~i: : ~lg 0.19 Cony. Total (cfs) 28575.7 34668.4
0.04 Top width (ft) 49.26 52.72
:: g~:~ O~la (l~'srt) 484.17 Frctn Loss (ft~ 0.04 0.01
6.23 c &. E Loss (ft 0.08 0.02
coef of Q shear Total (1 Isq ft) 0.89 0.64
Or 5el Method Energy only Power Total (1b/ft s) 5.53 3.54
BRIOGE OUTPUT Profi 1 e #10-year
E.G. US. ~ft~ 7943.95 El ement Insi de BR us Insi de BR DS
W.5. US. ft 7943.45 E.G. Elev (ft~ 7943.92 7943.81
Q Total (cfs) 1284.00 W.S. Elev ~ft 7943.37 7943.40
g :~~ ~g(Cl~rs) 1284.00 crit w.s. ft) 7941.15 7940. 76
Max ch 1 Opth jft) 6.12 6.15
Wei r Sta Lft ~ft) vel Total ~ft s) 5.50 4.86
wei r Sta Rgt ft) Flow Area sq ft) 233.42 264.06
wei r submerg Froude # ch 1 0.45 0.38
wei r Max Depth (ft) specif Force (cu ft) 861. 89 936.45
Mi n El We; r Flow (ft) 7947.18 Hydr Depth ~ft~ 4.82 5.13
Min El Prs (ft) 7948.25 W.P. Total ft 64.24 67.92
Delta EG (ft~ 0.16 Cony. Total (cfs) 23226.3 28302.7
Delta ws (ft 0.05 TOp wi dth (ft) 48.43 51. 48
:: g~:~ e~fa (~~'sjt) 495.15 Frctn loss ~ft~ 0.04 0.01
5.50 C&ELoss ft 0.07 0.02
coef of Q shear Total p /sq ft) 0.69 0.50
Br Se 1 Method Energy only Power Total lb/ft s) 3.81 2.43
BRIDGE OUTPUT Profi 1 e #50-year
E.G. US. ~ft) 7944.53 Element Insi de BR us Inside BR DS
W.S. US. ft~ 7943.90 E.G. Elev (ft) 7944.50 7944.37
Q Total (cfs 1575.00 W.s. Elev (ft~ 7943.80 7943.84
g :~l~g(c~~rS) 1575.00 crit w.s. (ft 7941. 66 7941. 21
Max ch 1 Dpth jft) 6.54 6.59
wei r Sta Lft (ft) vel Total ~ft s) 6.19 5.49
We; r Sta Rgt (ft) Flow Area sq ft) 254.42 286.96
wei r Submerg Froude # Chl 0.49 0.42
We; r Max Depth (ft) specif Force (cu ft) 1056.60 1136. 78
Min El Wei.. Flow (ft) 7947.38 Hydr Depth (ft~ 5.12 5.43
Min El Prs (ft) 7948.25 W.P. Total (ft 66.66 70.47
Delta EG (ft~ 0.20 Conv. Total (cfs) 26048.7 31744.2
Delta WS (ft 0.06 TOp width (ft) 49.72 52.86
:: ~~:~ ~~Va (~~'sj~) 495.15 Frctn Loss (ft~ 0.04 0.01
6.19 c &. E Loss (ft 0.09 0.02
coef of Q shear Total P Isq ft) 0.87 0.63
Br sel Method Energy only Power Total lb/ft s) 5.39 3.43
BRIDGE OUTPUT Profi 1 e #500-year
E.G. US. (ft~ 7945.30 El ernent Insi de BR us Insi de BR OS
W.S. US. (ft 7944.52 E.G. Elev (ft) 7945.26 7945.11
Q Total (cfs 1950.00 W.S. Elev (ft~ 7944.39 7944.45
g :~i ~gM~jS) 1950. DO crit w.s. (ft 7942.26 7941. 75
Max ch 1 Dpth jft) 7.14 7.19
weir Sta Lft ~ft) vel Total ~ft s) 6.85 6.10
wei r Sta Rgt ft) Flow Area sq ft) 284.57 319. 59
wei r submerg Froude # Ch 1 0.53 0.45
wei r Max Depth (ft) spedf Force (cu ft) 1338.58 1429.14
Olin El weir Flow (ft) 7947.38 Hydr Depth (ft~ 5.54 5.79
Min El Prs (ft) 7948.25 W.P. Total (ft 69.71 74.37
Delta EG (ft~ 0.23 Conv. Total (cfs) 30213 . 7 36702.5
Delta WS (ft 0.06 TOp width (ft) 51. 33 55.23
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