FLOOD00150

• Designation Number: 579
• County: Gunnison
• Community: Marble and Vicinity
• Stream Name: Crystal River
• Title: Floodplain Information Report - Crystal River Technical Appendix
• Date: 8/1/2004
• Prepared For: CWCB
• Prepared By: Icon Engineering, Inc.
• Floodplain - Doc Type: Floodplain Report/Masterplan

I

I

~anl'li~g'$ ~ value$
Sta ~ val Sta
o .06 1B.7

577.927949.91585.677950.47
605.677952.18607.927952.41

""-
nval
.035

587.927950.63
610.167952.61
3
Sh nval
175.8 .06

ery$talRiverrep
595.677951.3597.927951.46
614.167952.88

aanl<;s.ta.:l<!ft ~}~~i l<!ngtns: left chann<!l Right Co<!ff Contr. Expan.
153.7 34.24 35.06 34.99 .3 .S
I~effettiv<! Flow num_ ,
Stal StllR Elev I'<!rmanent
0 132.1 7936.2 ,
187.4 614.1679]5.88 ,
eROSS SECTION oUTPlJT I'rofilenoo-year
~~~. H~~av (tg) 7930.89 Eleme~t leftOB channel Ri8~~6gB
1.70 IoIt.n-val. 0.060 0.035
w.~. Elev ~ft~ 7929.19 Reathlen. (ft) 5.25 5.25 5.25
crlt W.S. ft 7927.89 Flow Area ($q ft) 42.89 173.07 35.13
E.G, Slopeeft/ft) 0.004585 Area ~$1 ft) 42.89 173.07 35.13
Q Total eth) 2181.00 Flow t$) 145.77 1919.25 115,98
~~~ ~~~~~ m}$) 46.51 TOp wi dth ~ft) 13.42 22,10 10,99
8.69 AV~. vel. ftl$~ 3,40 11.09 3,30
Max Chl Dpth Cft~ 9.27 Hyr.Depth(ft 3.20 7.83 3.20
Conv. Total ~th 32208.2 Conv. (th) 2152,6 28342.8 1712,8
length wtd. ft) 5.25 wetted Per. (ft~ 14,87 22.84 12.72
\olin eh El (ft) 7919.92 shear (lbj$qft 0.83 2.17 0.79
Alpha 1.45 StreamPower(ljfts) 2.81 24.05 2.61
Frttn lOS$ ~ft~ 0,03 cum volume (atre-ft) 40.45 74.53 42.09
C & E lO$S ft 0.28 Cum SA (atre$) 23.19 19.31 24,62

I

I

I

I

Warn;~q: The velocity head has changed by more than 0.5 ft (0.15 m). Thh may indicate the ~eed for
additional tross settio~$,

CROSS SECTION OUTPuT Profile#Floodway
~~r' H~~av (~W 7930.89 Element Left 08 Channel Rig~~6gl1
1.70 WL n-val. 0,060 0.035
w.~. Elev ~ft~ 7929.19 ReathLen. (ft) 5.25 5.25 5,25
Cnt W.S. ft 7927,89 Flow Area ($qft) 42.89 173,07 35.13
E.G. Slope (ftjft) 0.004585 :~~: ~~1srt) 42.89 113.07 35.13
QTotal (th) 2181.00 145.77 1919,25 115,98
~~~ ~~;~ f~U$) 46.51 TOp width fft) 13,42 22.10 10.99
8.69 AV9' vel. ft/s~ 3.40 11.09 3.30
Max chl Opth (ft~ 9.27 Hyr,Oepth(ft 3,20 7.83 3.20
COIW. 10tal ~tfs 122011.2 coov, (tfs) 2151.6 211342.8 1712.8
Lengthloltd. ft) 5,25 wetted Per, (ftl 14,87 22.114 12.72
MinChEl (ft) 7919.92 Shear(lbj$qft 0.83 2.17 0,79
Alpha 1.45 stream Power (1 jft $) 2.81 24,05 2.61
FrttnLoss ~m 0.03 Cum volume (atre-ft) 19.64 110.96 15,1]
C &. E Loss 0.28 Cum SA (atrn) 7.76 19.31 6.42

I

I

I

Warning: The velotity head has tha~ged by more than 0.5 ft (0.15 m). This may indit..te the ~eed for
additio~al cross settions.

CROSS SECTIO~ OUTPUT Profile #lO-year

I

~~~. H~~dv (~g)
~~~t ~~~~ f~n
E,G, Slope (ftjft)
QTotal(th)
~~~ ~~~~~ H~}s)
~~~v ~h~o~~fh (~~~~
Lengthwtd. (ft)
lolinehEl (ft)
Alpha
FrctnLO$$(ft)
C &. E Loss (ft)

I

7929,50
1.47
7928.03
7926.87
0.004774
1657.00
42.09
8.Z9
8,11
23981.1
5.25
7919.92
1.37
0.03
0.25

Eleme~t
wt. ~-val,
Reach Le". (ft)
Flow Area (sq ft)
~~~~ ~~1srt)
1opwidth(ft)
Avg. ve', (ft{s)
Hydr,DepthCft)
Conv. (th)
~~~~~d (j~/sq (m
Stream power (lbjft $)
Cum volume (acre-ft)
cum SA (at res)

left 08
0.060
5.25
28.76
28.76
87,31
10,99
3.04
2.62
1263.6
12.17
0.70
2.14
30.64
20.17

Channel
0,035
5.25
147,49
147.49
1500.21
22.10
10.1.7
6.67
21712,0
22.84
1,92
19.57
63,911
19.31

Rig~56gB
5.25
23.56
23.56
69.47
9.00
2.95
2.62
1005.5
10.41
0.67
1.99
29.69
20,21

war~i"g: The velocity head ha$ tha~ged by more tha~ 0.5 ft (0.15 m). This may i~ditate the ~eed for
additio~al tross $ect;o~s.
warni~g: The co~vey..nce ratio (upstream to~veya,:,ce divided by dow~$tream tonveyante) is less than
0.7 or greater than 1.4. This may indlcate the need for additio~al cross settions.
CROSSSECTlONOUTPUT profilelf50-year

I

~h:~d"(~:;'
~~~i: ;~~~ ~m
E.G. slope (ftjft)
QTotal(cfs)
~~f ~~~;~ m}S)
Maxchlopth(ft)
Conv, Total (th)
LengthWtd. (ft)
MinchEl (ft)
Alpha
~r2~ t~~~ ~m

I

79.10....s.o-Uemer+
1.65 Wt. ~-val.
7928.85 ReathLen. (ft)
7927,61 Flow Area ($1< ft)
oig~1~gJ :~~~ ~~1srt)
45.21 Top width (ft)
8.63 Avg, vel. (ftjs)
8.93 Hydr.Depth(ft)
29646.0 Conv. Ctfs)
5,25 Wetted Per. (ftl
7919.92 shear (lbjsq ft
1.43 StreamPower(ljfts)
0.03 cum volume (acre-ft)
0.26 Cum SA (at res)

~f'-"&
0.060
5.25
311.42
38.42
127.34
U.70
3.31
3,02
1858.7
14.07
0.80
2.6S
37.51
22.25

CIa 1
0.035
5.25
165.50
165.50
11102,]4
22.10
10,89
7.49
26308.3
22.84
2.12
23.12
71.63
19,31

~gB
5.25
31.47
31.47
101.32
10,40
3.22
3.02
1479,0
12.03
0.77
2.47
38.32
23,62

warning: The velocity head has thanged by more tha~ Q.5 ft (0 15 m). This may indicat<' the ~eed for
additional cross sections.

CROSS SECTION OUTPUT Profilelf500-year
~~~. H~~dv (~~F 7931.69 Eleme~t LeftOB Channel Jl.i8~~6gB
1.B2 Wt.n-val. 0.060 0.035
101, s, Elev ~ft~ 7929.87 ReathLen. eft) 5.25 5.25 5.25
CritW.S. ft 7928.49 Flow Area (sqft) 52.53 188,13 42.93
E.G. slope (ftjftJ 0.004450 :~~: ~~1srt) 52.B 1811.13 43.02
QTotal (ch) 2515.00 188.15 2172.87 1B.98
~~f *~~;~ m}s) 49.12 Top wi dth ~ft) 14.85 22.10 12.17
11.87 AV~. vel. ft!s) 3.58 11.55 3.59
Max elll Dpth (ft~ 9.95 Hyr. Depth (ft) 3.54 8.51 3.70
tonv. Tota 1 ~tfs 37701.5 Co~v, (th) 2820.5 32572.7 2308.3
LengthWtd. ft) 5.25 Wetted Per, (ftl 16.45 22,84 13.42
lolinchEl (ft) 7919.92 shear (lb/$q ft 0,89 2.29 0.89
Alpha 1.49 Stream power (11ft s) 3.18 26.43 3.19
FrttnLOSS ~m 0.03 Cum volume (atre-ft) 47.84 80.97 50.47
C & E LOSS 0.30 Cum SA (Iltres) 27.011 19.31 27.77

I

I

I

BRIDGE

Warning: The velocity head has thanged by more th..nO.5 ft (0.15m) . This may indicate the need for
additionalcros$sett;ons.

I

I

Page 20