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

1

REACH: Marble

RS: 86U

CrystalRiver.rep

1

INPLJT
Description:
stationElevationoata. n\lm_ 140
StiI. Elev Sta Elev Sta Elev 5tH. Elev Stil Elev
07822.72 18.987820.13 28.987819.08 38.987817.65 48.987816.54
58.98 7815.3 68.98 7814.7 78.987UL98 &S.9878.11.84 <1$.987813.31
119.137812.38128.987811.72 139.17809.89140.967809.54148.217808.54
149.l37808.41 158.987806.95 168.987805.23 179.047804.21 188.877803.18
189.517803.08190.037802.99190.537802.93 199.137802.35 208.987801.79
218.987801.37228.987800.99238.987800.82 248.987800.08 255.247799.75
268.767799.82277.517799.84286.467799.92 2897798.41289.347798.25
293.977795.98298.857796.06308.987795.79 338.987794.82 349.137794.81
358.987794.42378.987793,77 388.987793.31 398.987792.92 408.987792.34
418.987791.88428.987791.3438.987790.52 458.987789.85 468.987789.21
478.987788.69488.987787.69 497.27788.38499.12 7788508.957786.11
509.467786.01 512.217785.42 518.43 7785.48 528.987785.17 538.987784.95
548.98 7784.7 553.617784.63 567.34 7782.88 578.987783.88 579.667783.95
583.017784.28 588.47784.19 599.13 7784.19 608.987784.44 631.077784.58
638.57 7784.61 644.08 7784.6 654.2 77t4.46 1;';.7.09 7784.44 1;6~.65 1784.42
668.637784.37 669.917784.02 671.78 7783.2 676.22 7781.3 730.237782.01
743.557783.42745.067783.56747.857783.53766.39 7783.4 767.637783.52
774.197784.22776.597784.39777.877n4.537M.617784.81784.147784.93
787.27785.04794.887785.29800.227785.44 812.437785.19 814.287785.13
823.047785.02833.047785.08843.047784.98 854.287784.98 863.047784.86
873.047784.6883.047784.57903.047784.44 913.047784.24 923.047784.16
924.287784.05 925.72 7783.9 936.79 7782.6 942.37784.17 945.53778>'01
946.247785.22 953.047785.23 963.047785.13 973.04778>.191034.287785.19
1043.047785.021074.287785.021083.047784.791093.047784.721103.04-7784.48
1110.587784.561113.24 7784.61123.047788.311124.527788.851128.197790.15
1130.147790.831151.947790.791153.047790.441154.667789.771159.837787.51
1162.437789.061163.047789.481164.287790.321173.047795.711174.287796.45
11.83.1.14 laOZ.3; U84.2\!. 7803.36 1193.04 71110.56 11"14.2& 1&1.1.57 1202.797818.52

I

1

1

I

Mannin9' ~ n value~ num_ S
su nval '" nVal m nval ". n Val m n val
0 .06 508.9, .05 676.22 .03> 730.23 .05 1113.24 .06
BankSta:Left Right Len9th~: left Channel ~i~~~ coeffcontr. Expan.
JilJi.n no.n 602.'35 535.11 ., .3
Ineffective Flaw nUm_ ,
Hal StaR [lev Permanent
0 638.577784.61 ,
800.22 1202.79 7786.9 ,
CROSS SECTION OUTPUT prafilel100-year
~~r' H~~dv (~~p 7786.33 Element Left 08 Channel Rig~~5gB
0.31 .,. n-val. 0.050 0.035
~~~t ~~~~ ~m 7786.02 Reachlen. (ft) 602.05 535.11 226.70
7785.16 Flow Area (sqft) 269.29 235.92 146.71
E.G. Slope (ft/ft) 0.002363 Area ~s~ ft) 269.29 235.92 522.27
0. Total (ds) 11111.00 ~'ow c 5) ~n.46 1300.9';. 346.58
~~~ ~~~~~ ~~~~s) 607.61 Tap wldth ~ft) 166.83 54.01 386.77
3.35 AV9' ve 1. ft/s~ 1.98 5.S! 2.36
MaxchlOpth(ft) 4.72 Hyr.Del'th(ft 1.61 4.37 2.10
Conv.Total Ccfs) 44867.9 Conv. (ds) 10974.5 26763.4 7130.0
Lengthwtd. Cft) 516.32 Wetted Per. (fti 167.69 54.01 70.15
M-;nchEl (ft) 7781.30 Shear (lb/sqft 0.24 0.64 031
A1p\u 1.79 Stream power (l/fts) 0.47 3.55 o.n
FrctnLass(ft) 1.40 Cum volume (acre-ft) 14.11 38.85 10.80
C&ElossCft) 0.07 cum SA (acres) 7.40 8.81 6.85

I

1

1

Warl11ng:

The velocity head ha~ changed by more than 0.5 ft (O.lS m). This may indicate the need for
additiona1cr<lsssect'ions.
The energ'Y lass was greater than 1.0 ft (0.3 m) between the current and previous crass ~ecc;an.
This may ,ndicate the need far additional cros~ sections.

warning:

1

CROSSSECTIONOllTPUT Profile#Floodway
E.G. Elev (ft) 7786.88 Element LeftOB Channel R;g~65~B
\Oelllead(ft) 0.83 .<- n-val. 0.050 0.035
~~~t ~~~~ un 7786.04 Rea.chlen. (ft) 602.05 535.11 226.70
7785.42 FlawArea(sqft) 90.19 236.95 18.03
E.G. Slope (ft/ft) 0.004746 :1~: ~~~srt) 90.19 236.95 18.03
QTatal (cfs) 2181.00 262.09 1817.12 61.79
~~~ ~~~~ m~S) 110.00 Top Width Cft) 51.22 54.01 4.77
6.32 AV9. vel. (ft/s) 2.91 7.84 3.43
loIallChl Dpth (ft) 4.74 Hydr.Dep.tl1(ft) 1.76 4.39 3.78
conv.Total (cfs) 31659.6 Conv. (d's) 3804.5 26958.1 897.0
Length wtd. Cft) 531.48 wetted Per. (ft~ ,LH 54.01 8.32
winChEl (h) 7781.30 Shear (lb/Sllft 0.50 1.30 0.64
A1pha 1.34 Stream power (J/ft s) 1.41> 10.19 2.20
FrCtn Los~ (ft) 1.99 CUm Volume (acre-h) 7.01 41.23 5.24
C&ELassCft) 0.01 Cum SA (acres) 2.3{' 1l.IU 2.11

1

I

~:~~1 ~~; i~; ~~~~~'Y s~~~10:a~a~r~~t~~ ~h~~n1:g ~~rM:~ l~). d~~~~~e~h~h~r~~~~:~t d~~~h p~:~~~~:t~~g~s secti an.
This may ,ndicate the need far ddditional cross section~.

1

CIIOSS :.lCnOHO\J1I'\JT prof))e lID-year
5ef' H~~~v c~~F 7785.65 Element LeftOB Channel ~;g~~5gB
0.47 .L n-val. 0.0,0 0.035
W,S. Elev(ft) 7785.18 Reach Len. (ft) 602.05 535.11 226.70
critw.s. (ft) 7784.80 FlowArea(sqft) 133.JS 190.38 88.87
LG. Sla~e (h/ft) 0.004128 ~~~ ~~~s~t) 1B.35 190.38 200.':\7
o Total Cds) 1657.00 237.16 1202.77 217.07
~~~ ~~~~~ ~mS) 489.43 Tap Width (ft) 147.,7 54.01 287.85
4.02 Avg.Vel. (ft/s) 1.78 6.32 2.44
Maxchl Dpth (ft) l.88 Hydr.oepth(ft) 0.90 3.52 1.45
~~~~thT~i~~ ~~W 25788.6 Conv. Cds) 3691.0 18719.2 3378.4
518.17 wetted Per. (ft~ 148.37 54.01 61.42
M-lnchEl (ft) 7781.30 snear(lb/sqft 0.23 0.91 0.37
1\1pha 1.87 StreamPower(l/fts) 0.41 >.74 0.91
Frctn LO~5 (h) 1.88 Cumvalume(acre-ft) 9.92 32.88 6.56
(& E loss (ft) 0.03 Cum SA (acres) 6.2< 8.81 5.61

1

I

Warning: Oivided flow computed for this cross-section.
warn; ng: i~i s e~:?l n~i~~t;a~h~r~:~~r f~~a~dJ; ~i :~a~Oc~a~~ 5~~~f~~~. the current and previ au~ crass secd on.
CRO$SSECTIONOUTPUT .prafi1e#So-year

1

~er' H~~r C~W 7786.14 Element LeftOB Channel RightOB
O.H 'Nt. n-va'. 0.05G C.035 O.OSO
~~~t ~~~~ m~ 7785.79 Reachlen. (ft) 602.05 535.11 226.70
7785.05 Flaw Area CSll ft) 230.'48 223.32 130.37
LG. Slope (ft/ft) 0.002742 :1~: ~~~~rt) 230.48 223.32 432.07
QToul (cfs) 2031.00 445.38 1278.93 306.69
~~~ ~~~~~ Hns) 605.90 Tap wi dth ~ft) 165.73 54.01 386.15
3.48 AV~. Vel. ftjs) 1.93 5.73 2.35
/11M chl Optn (ft~ 4.49 fiyr.Oepth(ft) 1.39 4.13 1.86
38784.4 conv. (d's) 8505.1 24422.8 5856.5
~~~~th T~~~~ ~~g 516.97 Wetted per. (ft) 166.57 54.01 70.15
Page "

1

I