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

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I

wejrstaLft(ft)
we1rStaRgt(ft)
We1rsubmerg
Welr Mall Depth (ft)
Mjll E1 Weir Flow (ft)
MlnEl Prs (ft)
Delta EG (ft)
Oe1taWS(ft)
:: g~;~ e~~a (~~/srt)
coefofQ
BrselMethod

I

7935.89
7933.14
1.68
2.62
441.29
11.17
Energy only

~~~ T~~:l ~:~/~~)
Froude'ehl
specifForce(cuft)
Hydroepth(ft)
\fl.p.Total eft)
conv. Total (cfs)
Tcpwidth(ft)
FrctnLOSS(fC!
C&ELoss(ft
Sh"arTotal (l/sQft)
power Total (lb/fcs)

CrystalRiver,rep
11.17 8.79
195.29 248.19
0.94 (/.72
1433.7> 1508.87
4.69 5.52
44.96 49.15
23276.6 31573.7
41.68 45.00
0.16 0.03
0.41 0.28
2.38 1.50
26.59 IJ.21

warning: The energy equation could not be balanced within the specified number of iterations. The
prograllused critica1 depth for the water surface and continued on with the calculations.
warning: The velocity head has changed by more than 0.5 ft (0.15 rn). This may indicate the need for
additional cross sections.
warn; ng: ~~~s e~:~grn~i~~t:a~h~r~:~~r f~~a~d~; ~i~~a~O c~o~~. s~~~~~~. the current and previ ous cross sectiorl.
warning: During the standard step iterations, when the assurned water surface was set equal to tritical
depth, the calculated water surface came back below critical depth. This indlcates that there is
not aval1d subcrithal answer. ,he program defaulted to critical depth.
warning: The velocity head has changed by more than 0.5 ft (0.15 Ill). Th15 may indicate the need for
additional cross sections.

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BRIDGE OUTPUT profilellFloodway

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E.G. US. (ft;
W.S.US. (ft
QTotal (cfs
g ~~1~g(Jgs)
we~ r sea Lft (ft)
we,rStaRgt(ft)
Weirsubmerg
weirMaxDepthCft)
Jolin El Weir Flow (ft)
MinE1Prs(ft)
Delta EG (ftl
DeluWS(ft
:: g~;~ ~~~a (~~/srt)
CoefofQ
BrselMethod

I

I

warning:
warning:
warnifl9:
warning;

The energy equation could not be ba1ar.cedwithin the specified numb er of iterations. The
?r<>9r~ used cridc'" dellth for tM _ter surfac"- and col\tinu,,-d (In with dw_ ca'cu'lotions.
The velocity head has changed by more than 0.5 ft (0.15 aI). This may indicate the need for
additional cross sections.
The en"rgr loss was greater than 1.0 ft (0.3 m). between the current and previous cross section.
This may lndicacethe need for additional cross sections.
During the standard step herations, when the assumed water surface was set equal to critical
depth, the calculated water surface carne back below critical depth. This indlcates that there is
notavalidsubcriticalanswer. The program defaulted to critical depth.
The velocity head ,has changed by more than O.S f1: (0.15 Ill). This may indicate the need for
additional cross sections.

I

warning:

BRIDGE OUTPUT profile#10_year

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f.G.US. (ftl
w.s.us. (ft
QTotal (cfs
g ~~1~g(c~~js)
weir sea Lft (ft)
weir Sea Rgt (ft
weir submHIl
weir Max Depth (ft)
MinE1WeirFlow(Ft)
MinEl prs(ft)
DeltaEG(ft)
Oelt~ VIS (ft)
~~ ~~:~ e~i" (gjs~t)
coefofQ
BrSelMethod

I

7930.89
7929.19
2181.00
2181.00

7935.89
7933.14
1.68
2.62
441.29
11.17

Energy only

7929.50
7928.03
1657.00
16S7.00

793S.89
7933.14
1.63
2.46
441.29
10.73

Energy only

Element
E.G. Elevf"l
w.s.Elev Ft
cdt w.s. ft
~:~ ~~~a ~Pt~t5~P
Flow Area ~Sq ft)
Froude'Chl
specifForCe(cuft)
~~~~ ~6~~~ gg
Canv. Total (cf!i)
TOp width (ft)
FrctnLoss(ftl
C &. E Loss (ft
Shear Toeal (1/sqft)
power Toeal (lb/fts)

Element
E.G. Elev1";
W.S. Elev ft
crit VI.S. Ft
MaxchlOpthCft).
~i~w'~~:~ g~Jfh
Froude#chl
specifForce(cuft)
~:~~ ~6~~~ ~m
conv.Total (cfs)
TopWldth(ft)
~rit~ t~~~ gg
~~;:~ i~~:1 m~f~ ~j'

Inside8RUS
7930.S7 .
7921.93
7927.93
8.01
11.17
Ig5.29
0.94
1433.75
4.69
44.96
2H76.6
41.68
0.16
0.47
2.38
26.S9

Inside BR OS
7929.52
7927.80
7926.58
7.88
8.79
248.19
0.72
1508.87
5.S2
49.1S
31573.7
4,_00
0.03
0.28
LSD
13.22

InsideBRUS
7929.21
7926.90
7926.90
6.98
10.n
154.36
0.94
1006.70
4.09
40.52
17075.7
37.74
0.17
0.42
2.24
24.04

InsideBRDS
7928.14
7926.68
7925.61
6.75
B.)l
199.4S
0.72
1053.34
4.81
44.95
23484.3
41.45
0.03
o.n
1.38
11.46

warning: The energy equation could not be balanced within the specified number of iterations. The
I programusedcriticaldepthforthew~tersurfaceandcontinuedonwith the calcu1ations.
warnin9: ThevelocityheadhaschangedbymorethanO.Sft (O.lSm). This may indicate the need for
additional cross sections.
_war.nin~~t~:~nrn~~~"'t~:;r~~~i"c;o;l s~~~rr<lnr-and-jH'eYi-otM-~---':ri<m.
warning: During the standard step iterations, when the assul1led ~ater surface was set e~ual to critical
depth,thecalcu1atedwatersurfacecamebackbelol'lcrlticaldellth. This indlcates that there is
not ava1id subcritical answer. The program defaulted to critical depth.
I Warning: ThevelocityheadhaschangedbymorethanO.Sft (O.Hm). This may indicate the need for
additional cross sections.
Warning: The conveyance ratio (upstre~ conveyance divided by downstream conveyance) is less than
0,7 or greater than 1.4. ThlS may indicate the need for additional cross sections.
BRIDGE OUTPUT profile#SO-year

Eo G. US. (ft~ 7930.50 Element InsidellRuS InsideBROS
I 101.5. us. (ft 7928.85 E. G. Elev ~ft~ 7930.20 7929.15
QTotal (ds 2031.00 1'1.5. Elev ft 7927.67 7921.S2
g :~~~g(A~fS) 2031.00 crit w.s. (ft 7927.67 7926.33
~;~ ~~~SP~~t~~F 7.7S 7.60
w..i,. StB Lft (ft~ 11.00 1!..62
weir Sta Rgt (Ft FlowArea sqft) 184.6S 23S.S0
weir Submerg Froud..IIChl 0.93 0.72
WeirMaxOepth(ft) Specif Force (cuft) 1308.83 1377.77
Min El w..ir Flow (ft) 793S.89 ~:~~ ~6~~~ ~m 4.54 5.34
MinEl prs(ft) 7933.14 43.8S 48.09
OeltaEG(ft1 1.66 Conv.Total (cfs) 21632.9 2g422.S
D..1ta WS (ft 2.S4 TOP Width (ft) 40.69 44.l0
:~ g~~~ ~~~a (~~~s~t) 441.29 ~rit~ t~~~ Hg 0.16 0.03
H.OO 0.4~ 0.27
coefofQ shear Total ~'b/sq ft) 2.32 1.46
BrselM..thod En..rgyonly powerToullb/fts) 25.49 12.S6

Warning:
warning:
Warning:
warning:

The enHgy equation could not be ba1ancedwithin the specified number of iterations. The
program used critical depth for the water surface and continued on with the calo::ulations.
The velocity head has changed by more than 0.5 ft (O.1Sm). This may indicatet:he need for
additio"alcrosssections.
~~~ s e~?r n~~~:t:a~h~r~:~~r f~~a~d~;~i :~a tOc~o~~' s~~~~~~~. the current and previous cross secti on.
During the standard step iterations, when the assumed water surface was set e~u..l to critical
depth, the calculated water surface came back below critical depth. This indlcates that there is
not avalidsubcritical answer. The prollram defaulted tocritico.l depth.
The velocity head has changed by more than 0.5 ft (O.1Sm). This may indicate the need for
additional cross sectiQM.

warning:

Ii!.UDGE OUTPUT profi1e #500~ye.a.r

page 22