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Last modified
1/26/2010 10:24:01 AM
Creation date
6/17/2008 2:35:59 PM
Metadata
Fields
Template:
Floodplain Documents
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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<br />I <br /> <br />I <br /> <br /> crystal River. rep <br />~;,~. H~~~v (m) 7907.87 el ement Left: 08 channel Ri8~~~8 <br />1.54 wt. n-val. 0.060 0.035 <br />w.~. Elev ~ft~ 7906.33 Reach len. (ft:) 535.61 475.86 425.77 <br />Crlt W.S. ft 7906. 33 Flow Area (sq ft) 50.37 153.08 40.27 <br />E.G. Slope (ft/ft) 0.010829 Area ~s1 ft) 50.37 153.08 40.21 <br />Q Total (cfs) 2031.00 Flow c s) 205.95 1660.96 164.09 <br />TOV wi dth ~ ft) 84.52 Top width ~ft) 24.90 39.77 19.85 <br />Ve Total ft/s) 8.33 AVS' vel. ft/s~ 4.09 10.85 4.08 <br />Max chl opth (ft~ 3.92 Hy r. Depth (ft 2.02 3.85 2.03 <br />Conv. Tota 1 ~cfs 19511.3 Conv. (cfs) 1979.1 15961.4 1516.8 <br />length wtd. ft) 416.21 Wetted Per. <ftl 25.21 39.77 20.25 <br />Min ch El (ft) 1902.41 shear (lb/sq ft 1.35 2.60 1.34 <br />Alpha 1.43 stream Power (l 1ft: s) 5.52 28.23 5.48 <br />Fret" Loss fft~ 5.23 cum vol urne (acre-ft) 36.44 65.68 36.81 <br />C&ELoss ft 0.03 Cum SA (acres) 21.16 17.93 23.01 <br /> <br />I <br /> <br />I <br /> <br />warning: :::~is e~:~grn~r~:t:a:h~r~:~~r f~~a~dai~i~afOc~o:~' s~~~::. the current and previous cross section. <br />Warning: ~~~~h~ i~: ~if~~f~~e~t:~t~~e~~~}:~:, c=:nb~~~ ~f=~r~f~~lS~~:~h~ w;hi:efn~~:~e;Ot~~~t~~:~e ;s <br />not a valid subcritical answer. The program defaulted to critical depth. <br />CROSS SECTION OUTPUT Prof; 1 e #SOD-year <br /> <br />I <br /> <br />~;,~. H~~~v (lg) 1908.55 Element left OB chan"e 1 Ri8~~6g8 <br />1.10 Wt. n-val. 0.060 0.035 <br />w.s. Elev ~ft~ 1906.86 Reach Len. (ft) 535.61 415.86 425.77 <br />Crit w.s. ft 1906.86 Flow Area (sq ft) 64.17 ' 114.13 51.08 <br />E.G. Slope (ft/ft) 0.010240 Area ~s1 ft) 64.11 114.13 51.08 <br />Q Total (cfs) 2515.00 Flow c s) 285.20 2002.04 221.16 <br />TOV width ~ft) 81.54 TOp wi dth ~ft) 26.11 39.11 21.00 <br />Ve Total ft/s) 8.69 AVS' vel. ft:/s~ 4.44 11.50 4.46 <br />Max Ch 1 opth (ft~ 4.45 Hy r. Depth (ft 2.40 4.38 2.43 <br />Conv. Tota 1 ~ cfs 24854.0 Conv. (cfs) 2818. 4 19184.8 2250.8 <br />length wtd. ft) 416.29 Wetted Per. (ft~ 27.11 39.11 21.52 <br />Min ch El (ft) 1902.41 shear (lb/sq ft 1.51 2.80 1.52 <br />Alpha 1.45 Stream Power (11ft 5) 6.71 32.18 6.11 <br />Fret" Loss ~ft~ 4.98 Cum volume (acre-ft) 46.38 14.25 48.67 <br />C&ELOSS ft 0.04 Cum SA (acres) 26.31 17.93 21.18 <br /> <br />I <br /> <br />I <br /> <br />Warning: <br />warni ng: <br /> <br />The energ~ loss was greater than 1.0 ft (0.3 11). between the current and previous cross section. <br />This may lndicate the need for additional cross sections. <br /> <br />~~~~~~ ~~: ~~~~~~~~e~ t:~t~~e~~~l:~: I c::" b~~~ ~f:e~r~f~~ 1 s~~:~~~ w~i :ef n~~:~e~o t~~~ t~~:~e is <br />not a valid subcritical answer. The program defaulted to critical depth. <br />CROSS SECT.ION <br /> <br />I <br /> <br />RIVER: crystal <br />REACH: Marble <br /> <br />RS: 16401 <br /> <br />I <br /> <br />INPUT <br />Oescri pti on: . <br />station Elevation Data num... <br />Sta Elev Sta Elev <br />o 1983.88 1.11 1982.34 <br />1.16 1956.01 10.12 1944.01 <br />21.921921.59 24.761918.02 <br />38.51 7902.66 45.491898.31 <br />93.81891.64 99.73 1899.9 <br />120.45 1914.63 121.43 7915.42 <br />161.14 1922.58 162.42 1922.64 <br />112.881923.12 119.697923.14 <br />195.111924.96 201.947925.58 <br />219.13 1921.59 235.637930.43 <br />250.31 1932.82 250.76 7932.88 <br /> <br />52 <br />Sta Elev <br />2.11 1979.86 <br />13.09 7932.71 <br />32.81 7901.51 <br />48.16 7896.69 <br />105.95 1903.42 <br />121.67 1920.11 <br />163.68 7922.79 <br />183.34 1924.06 <br />203.111925.75 <br />236.09 1930.51 <br /> <br />Sta Elev <br />2.13 1978.2 <br />13.63 1932.13 <br />34.19 1905.86 <br />89.911896.69 <br />107.611904.61 <br />134.9 1921.15 <br />167.79 1922.89 <br />181.1 1924.45 <br />211.72 1926.41 <br />243.15 1931.61 <br /> <br />Sta Elev <br />4.86 1964.85 <br />18.93 1925.25 <br />35.9 1904.62 <br />91. 52 1891.08 <br />113.81 1909.41 <br />142.16 1921.43 <br />111.69 1923.01 <br />193.8 1924.19 <br />214.11 1926.18 <br />246.09 1931.99 <br /> <br />I <br /> <br />I <br /> <br />Manning's n values <br />Sta. n val Sta <br />o .06 48.16 <br /> <br />num- <br />n val <br />.035 <br /> <br />3 <br />Sta <br />89.91 <br /> <br />n val <br />.06 <br /> <br />I <br /> <br />Bank Sta: Left- Right Lengths: Left Channel Right coeff Contr. Expan. <br />48.16 89.91 493.09 498.06 503.19 .1 .3 <br />CROSS. SECTION OUTPUT Profi 1 e #lOO-year <br />~;,~. H~~~v (lW 7902.71 Element Left 08 channel R;g~~6g8 <br /> 1.92 wt. n-val. 0.060 0.035 <br />w.s. Elev ~ft~ 1900.86 Reach Len. (ft) 493.09 498.06 503.19 <br />crit W.5. ft 1900. 86 Flow Area (sq ft) 14.14 174.05 21.51 <br />E.G. slope (ft/ft) 0.010967 ~f~: ~~'sjt) 14.14 174.05 27.57 <br />Q Total (cfs) 2181. 00 53.98 2004.51 122 . 52 <br />TOV wi dth ~ft) 59.99 TOp wi dth ~ft) 6.12 41.15 11.51 <br />Ve Total ft/s) 10.11 AVS' vel. ft/s) 3.82 11.52 4.44 <br />Max chl opth (ft~ 4.11 ~~n~: (~~~~ (ft) 2.10 4.11 2.39 <br />Conv. Tota 1 ~ cfs 20826. 2 515.4 19140.8 1169.9 <br />length wtd. ft) 498.43 wetted Per. (ft) 7.91 41.15 12.30 <br />Min ch El (ft) 1896.69 ~~~:~ (~~,:~ m/ft s) 1.22 2.85 1.54 <br />Alpha 1.21 4.61 32.87 6.82 <br />Frctn Loss ~ft~ 4.98 Cum volume (acre-ft) 38.85 66.51 40.11 <br />C & E Loss ft 0.02 Cum SA (acres) ?2.31 11.48 23.90 <br /> <br />I <br /> <br />I <br /> <br />Warning: The energy equation could not be balanced within the specified number of iterat.ions. The <br />program used critical depth for the water surface and continued on with the calculations. <br />warning: The energv loss was greater than 1.0 ft (0.3 m). between the current and previous cross section. <br />This may lndicate the need for additional cross sections. <br /> <br />warning: ~~~~~~ ~~:~~f~~f~~e~t:~t~~e~~~}~~:. c::nb~~~ ~:f:e~r~f~~ls~~~~~~ w~i~efn~1~:~e;o t~~~t~~:~e is <br />not a valid .subcritical answer. The program defaulted to critical depth. <br />CROSS SECTION OUTPUT Profile #Floodway <br /> <br />I <br /> <br />~e~. H~~~v (lW 1902 . 71 Element left OB channel Ri g~~6g8 <br />1.92 Wt. n-val. 0.060 0.035 <br />W.S. Elev ~ft) 1900.86 Reach Len. (ft) 493.09 498.06 503.19 <br />crit w.s. ft) 1900.86 Flow Area (sq ft) 14.14 114.05 21.51 <br />E.G. slope (ft/ft) 0.010961 ~1: ~~Mt) 14.14 174.05 21.51 <br />Q Total (cfs) 2181.00 53.98 2004.51 122.52 <br />~:V ~~~~ ~mS) 59.99 TOp Wi dth (ft) 6.12 41.15 11.51 <br />10.11 AVS' vel. (ft/S~ 3.82 11.52 4.44 <br />Max ch 1 opth (ft~ 4.11 Hy r. Depth (ft: 2.10 4.11 2.39 <br />Conv. Total (cfs 20826.2 Conv. (cfs) 515.4 19140.8 1169.9 <br />length wtd. (ft) 498.43 Wetted Per. (ft~ 1.91 41.15 12.30 <br />Min ch El (ft) 1896.69 shear (lb/sq ft 1.22 2.85 1.54 <br />Alpha 1.21 Stream Power (1 1ft s) 4.61 32.81 6.82 <br />Frctn Loss ~ft~ 4.98 Cum volume (acre-ft.) 18.04 12.94 13.21 <br />C &, E LOSS ft 0.02 Cum SA (acres) 6.95 11.48 5.10 <br /> <br />I <br /> <br />I <br /> <br />warning: <br />warni ng: <br />Warning: <br /> <br />The energy equation could not be balanced within the specified number of iterations. The <br />program used critical depth for the water surface and continued on with the calculations. <br />i~~s e~:~gln~i~:t:~h~r~:;:r f~~a~d~i~i~~afOc~o=~' s=~il:~. the current and previous cross section. <br />During the standard step iterations. when the assumed water surface was set equal to critical <br />Page 28 <br /> <br />I <br /> <br />I <br /> <br /> <br />
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