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Last modified
11/23/2009 1:37:51 PM
Creation date
10/4/2006 9:06:49 PM
Metadata
Fields
Template:
Floodplain Documents
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
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<br />I <br /> <br />I <br /> <br /> CrystalRiver.rep <br />e~r' H~~~v (~W 7907.87 Element LeftOB Channel Rig~~6gB <br />1.54 Wt. n-val. 0.060 0.035 <br />w.~. E1ev ~ft~ 7906.33 HeachLen. (ft) 535.61 475.86 425.77 <br />cr1t w.s. ft 7906.33 Flow Area (sq ft) 50.37 153.08 40.27 <br />E.G. Slope (ft/ft) 0.010829 Area ~s~ ft) 50.37 153.011 ~Q.27 <br />QTotal (cfs) 2031.00 Flow c s) 205.95 1660.96 164.09 <br />Te~ Width ~ft) 84.52 Tep Wldth ~ft) 24.90 39.77 19.85 <br />Ve Total ft/s) 8.33 AV~. Vi'll. ft/S~ 4.09 10.85 4.08 <br />Ma~ ehl Opth (ft~ 3.92 Hyr.oepth(ft 2.02 3.85 2.03 <br />conv. Tetal ~CfS 19517.3 conv.(cfs) 1979.1 15961.4 1576.8 <br />Lengthwtd. ft) 476.n wetted Per. (ft~ 25.21 39.77 20.25 <br />MinchEl (ft) 7902.41 shear(lb/sqft 1.35 2.60 1.34 <br />Alpha 1.43 StreamPower(1/fts) 5.52 28.23 5.48 <br />FrctnLosS gg S.B (<JIll V~'\m\l! (aca-ft) 36.44 65.611 36.!7 <br />C & E LOSS 0.03 cum SA (acres) 21.76 17.93 23.07 <br /> <br />I <br /> <br />I <br /> <br />warning: <br />warning: <br /> <br />The energ~ loss waS greater than 1.0 ft (0.3 m). between the current and previous cross section. <br />This may lndicate the need for additienal crOSS secti~ns. <br />ouring the standard step iterations, when the assumed water surface was set e~ual to critical <br />depth, the calculated water surface came back below craic..l depth. This indlcates that there is <br />not ava1id subcritical answer. The pregram defaulted to critical depth. <br /> <br />I <br /> <br />I <br /> <br />CROSSSECTIOtlOUTPUT Prefile_500-year <br />~~r' H~~~v (~W 7908.55 Element LeftOB Channel Rig~~6gB <br />1.70 wt.n-val. 0.060 0.03, <br />w.s. Elev ~ft~ 7906.86 Reach Len. (ft) 535.61 475.116 425.77 <br />eritw.s. ft 7906.86 Flow Area (sQ ft) 64.17 174.B 51.08 <br />E.G. slo~e (ft/ft) 0.010240 AreaJs1 ft) 64.17 174.B 51.011 <br />QTotal(cFs) 2515.00 FlOW c s) 285.20 2002.04 227.76 <br />TO~ Width ~ft) 117.54 Top dth ~ft) 26.77 39.77 21.00 <br />'Ie Total ft/s) 8.69 AV~. vel. ft/s~ 4.44 11.50 4.46 <br />Max ehl Opth (ft~ 4.45 Hyr.Depth(ft 2.40 4.38 2.43 <br />cenv. Total ~Cfs 24854.0 conv. (cfs) 2818.4 19784.8 2250.8 <br />Length wtd. ft) 476.29 wetted Per. (ft~ 27.17 39.77 21.52 <br />MinchEl (ft) 7902.41 Shear (1b/sq ft 1.51 2.81> 1.52 <br />Alpha 1.45 stream Power (lIft s) 6.71 32.18 6.77 <br />Frctn LOSS ~ft~ 4.98 cWllvolume(acre-ft) 46.38 74.25 48.67 <br />C&ELess ft 0.04 cum SA (acres) 26.31 17.91 27.1& <br /> <br />I <br /> <br />warning: <br />warning: <br /> <br />i~~ s e::?~n1i'~~t:a~h~r~:~~r f~~a~dai~i~~afO c~o~~. s~~~i~~~. the current and previous cross secti on. <br /> <br />~~~~~~ ~~: ~~l~~l~~e~t:~t~~e;e~}~~~' c:::n b~~: ~:~:e~ri~f~~l s~~~~~~ w~~i ~ef n~~~:~e;o t~~~ t~~:~e is <br />not a valid subcritical answer. The pr~gram defaulted to critical depth. <br /> <br />I <br /> <br />CROSS SECTION <br /> <br />RIVER: crystal <br />REACH: Jolarble <br /> <br />RS: 16407 <br /> <br />I <br /> <br />INPUT <br />Description: <br />Station Elevation Datca nUrn_ <br />SU Elev su Elev <br />D7'l1l3.1I11 1.177"'82.34 <br />7.167956.1>1 10.127944.01 <br />21.927921.59 24.767918.02 <br />311.577902.66 45.497898.31 <br />93.87897.64 99.737899.9 <br />120.457914.63121.437915.42 <br />161.14 7922.58 162.427922.64 <br />172.887923.12179.697923.74 <br />195.717924.96201.947925.58 <br />all.737927.59235.637930.43 <br />250.377932.B2250.767932.88 <br /> <br />" <br />Sta Elev <br />2.117979.8& <br />13.097932.71 <br />32.877907.57 <br />48.167896.69 <br />105.957903.42 <br />U7.677920.77 <br />163.687922.79 <br />183.347924.06 <br />203.717925.75 <br />2)Il.09793D.n <br /> <br />Sta Elev <br />2.737978.2 <br />13.637932.13 <br />34.197905.86 <br />B9.917896.69 <br />107.617904.67 <br />134.97921.15 <br />167.797922.89 <br />187.77924.45 <br />211.727926.47 <br />243.157931.67 <br /> <br />Sta Elev <br />4.867964.85 <br />18.937925.25 <br />35.97904.62 <br />91.527897.08 <br />113.877909.41 <br />142.167921.43 <br />171.697923.07 <br />19).87924.79 <br />214.717926.7B <br />246.097931.99 <br /> <br />I <br /> <br />I <br /> <br />Manning'snvalues <br />Sta nval Sta <br />o .06 48.16 <br />BankSta: Left Right <br />48.16 89.91 <br /> <br />num_ <br />nval <br />.03> <br /> <br />, <br />SU nval <br />89.91 .06 <br /> <br />Lengths: Left channel Ri9ht <br />493.09498.06503.19 <br /> <br />coeffcontr. <br />.1 <br /> <br />Expan. <br />., <br /> <br />CROSSSECTIONOUTI'UT profile#100-year <br /> <br />I <br /> <br />~er'H~~~v(m) <br />W.S. Elev(ft) <br />critw.s. (ft) <br />LG......S.1DpUWf~ <br />QTotal (cfs) <br />~~~ ~~~~~ m}S) <br />loIaxchl Dpth (ft) <br />Conv.Total (cfs) <br />Lengthwtd. (ft) <br />NinchEl (ft) <br />Alpha <br />FrctnLOH Cft) <br />C & E LOSS Cft) <br /> <br />7902.77 Elemellt <br />1.92 Wt. n-val. <br />7900.86 RuchLen. Cft) <br />79oo.B6 Flow Area (sq ft) <br />"2~~~~~~: (~1s;~~ <br />59."1"1 1<l1"'lldth(ft) <br />1~: n ~~~~. V~~Pt~f~m <br />20826.2 cony. (cfs) <br />498.43 Wetted Per. (ftl <br />7896.69 shear (lb/sqft <br />1.21 Strearnpower(l/fts) <br />4.9B cum volume (acre-ft) <br />0.02 Cum SA (acres) <br /> <br />Left 06 Channel <br />0.060 0.035 <br />49),09 49B.06 <br />14.14 174.05 <br />t.4-.....--l.~\ lH <br />53.98 2004.51 <br />6.71 4L75 <br />3.82 11.52 <br />2.10 4.17 <br />515.4 19140.8 <br />7.91 41.75 <br />1.22 2.85 <br />4.67 32.87 <br />38.85 66.51 <br />22.37 17.48 <br /> <br />Ri8~~6g6 <br />503.19 <br />27.57 <br />~h$~ <br />122.52 <br />11.51 <br />4.44 <br />2.39 <br />1169.9 <br />12.30 <br />1.54 <br />6.82 <br />40.17 <br />23.90 <br /> <br />I <br /> <br />I <br /> <br />warning: <br />warning: <br />warning: <br /> <br />The energy equation could not be balanced within the specified number of it~rations. The <br />program used critical depth for the water surface and continued en with the calculations. <br />i~~ s e~:?~n~~~:t:a~h~r~:~~r f~~a~d~i~i ~~a to ~~o~~. s~~iV~~~. the current and previ ous cross secti Oil. <br />During the standard step iterations, when the assumed water surface was set e<Jual to critical <br />depth, the calculated wat~r surface came back below critical depth. This indlCates that there is <br />not a valid subcrit1cal anSWl!r. Th~ program defaulted to critical depth. <br /> <br />I <br /> <br />CROSS SECTION OUTPUT profile#Floodway <br />~~r' H~~r (~W 7902.77 Element Left OR Channel Rig~~6g6 <br />1.92 "'. II-val. 0.060 0.035 <br />w. S. Elev ~ft~ 7900.86 Reach Len. (ft) 493.09 498.06 503.19 <br />critW.S. ft 7900.86 FlOW Area (sQ ft) 14.14 174.05 27.57 <br />E.G. slope (ft/ft) 0.010967 ~1~: f~~srt) 14.14 174.05 27.57 <br />QTotal (cfs) 2181.00 Sl.9S 2004.51 122.S2 <br />~~~ *~~~~ m}S) 59.99 TOP Width (ft) 6.72 41.7> 11.51 <br />10.11 ~~~~.V~~Pt~f~m 3.82 11.52 4.44 <br />~;~v:h~e~~fh (&m 4.17 2.10 4.17 2.39 <br />20826.2 cony. (cfs) 515.4 19140.B 1169.9 <br />Length\fltd.(ft) 498.43 wetted Per. (ft) 7.91 41.75 12.30 <br />MinchEl (ft) 7B96.69 ~~~:~ra (~~~~~ n~/ft 5) 1.22 2.85 1.54 <br />Alpha 1.21 4.67 32.87 6.82 <br />FrctnLOSS 'f<l 4.98 cum volume (acre~ft) 18.04 72.94 13.21 <br />C & E LOSS 'f< 0.02 Curn SA (acres) 6.95 17.48 5.70 <br /> <br />I <br /> <br />I <br /> <br />warning: <br />Warning: <br />warning: <br /> <br />The energy equati<ln could not be bala,nced within the specified number of iterations. The <br />program used critical depth for the water surface and continued on with the calculations. <br />The energ)! loss was greater than 1.,0 ft (0.3 m). between the current and previeus cross section. <br />This may lndicate the need for additional cross sections. <br />ouring the standard step iterations, when the assumed water surface was set equal to critical <br />Page 28 <br /> <br />I <br /> <br />I <br />
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