FLOOD02442

• County: Rio Grande
• Community: South Fork
• Stream Name: South Fork Rio Grande River
• Basin: Rio Grande
• Title: Flood Hazard Study
• Date: 10/1/1980
• Prepared For: South Fork
• Prepared By: USDA Soil Conservation Service
• Floodplain - Doc Type: Floodplain Report/Masterplan

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TABLE!

FLOOD FREQUEliCY-ELEVATIOUAHDlIISCHAR.GE DATA I!
scum FORK RIO CAANO~ REACH 1 -

CrOH : Stationing
Sectlo~: from Moutt>
Oe.19~
nation : Feet (l1etres)

Identl(Jcatlon

StreamBed
Elevation

Feet (Metres)
H.G.V.D.
SWl.S (2499.8)

,

P S2i/oO (1597.2)

ereH-Elevatlon Feet (H'tr".) Natlon.,1 GeodetIc Vertical
Daturn,andPeakOlscharqec.f.s. t<:.m.s.l

mi.'
."'

IO-Year
nood

(2501.6)
(84.7)

,

50-Year
"'""

,

I DO-Year
flood

SOD-Year
"'""

~(}J.2 (2SU2.2) &!OO.6 (2502.3) 6210.6 (ZS02.6)
5COO (l4J..9) 6240 (176.7) %00 (V'"I)

Q

"'"

82(lI),) (Z501.3)

(169'<.7)

&W..
."'

(:1.502.7)
(SO.?)

8212.4 (2503.1)
SOOO (14::.9)

8112.8 (2503.J)
6240 (176.7)

81:13.6 (2503.5)
9b8'1 (274.1)

,

"'10

(1804.4)

8207.0 (2501.5)

&U.,
."'

(2503.4)
(84.7)

&14.1 (25(3.8)
SOOO (14c.9)

a:m.2 (~O)
&24(1 (176.7)

€2l6.l (2504.3)
%9J (V4.:)

,

'""',

8210.4 (2502.5)

(I'102.0)

8m.?
."'

(ZSOoI.i)
(84.7)

8211.2 (25(4.6)
509J (14".9)

8211.1 (250'0.6)
624:l (176.7)

<218.7 (250'>.1)
968:1 (114.\)

,

"""

8213.2 (250M)

1!22Z,3 (25lli2)
%80 (274.1)

(2069.6)

8218.9
."'

(2505. I)
(80\.1)

Il2:inS (25(5.6)
5080 (1"".9)

8221.1 (2505.8)
&24') (I76.7)

u

(2182.4)

8213.8 (2503.6)

"..,

,,"",
"'"

(2.5lX>,.I)
(80\.7)

&23.3 (25C6.S)
5080 (143.9)

8223.8 (25C6.6)
fr.?31 (176./.)

ens. 1 (2'iOl.0)
%70 (273.8)

,

"''0

(2359.2)

8217.9 (2504.a)

8225.3
."'

(2507.1)
(84.7)

8227.0 (25C7.6)
5080 (143.9)

8211.6 (2507.8)
62J.:1 (116.4)

112:i'Jl.1 (2500.2)
~)'o (213.8)

!!

flood elellatlon. pertain to the prlfl\<lry channel and usually remalnc<l<l.tant In
plain. However, floodelellatlon.lntlleouterportlon.ofaero...eetlonmay
roadcronlng., upotrea...dlllerslons, etc.

a laten,l dlrectlonaeron the flood
differ frOlll the prl"",ry channel due to

Table p"'Je 3

TABLE 1

rLOODFREQ.UEHCY.ELEVATtDN AND DISCHARGE QATA I!
SOl1Ill FORK RIO GRANDE Rl!^.CIi 2 -

Identification

Stre3/PIBed
Elevation

Cro.s : Statlonln9
S"Clion, frOnlHouth
Deslg-
natjon :fe.;>! (Metre.)

feet (Hetres)
H.G.V.D.
8217.9 (2504.8)

,

77+40 (23:;9.2)

8225.3
."'

Cre.t~Elev"tlon feet (lIetres) Nulonal Geodetic: Vrrtlc:al
Datllm, "nd PukDls<;harqe e.f.s. (e......)

10-Y"ar
"'""

(2507.1)
(84.7)

,

50-Year
flood

lCD-Year
"'""

500-Ye...
Flood

,

8211.0 (~.07.6)
SCl';C (lt3.9)

8211.6 (2501.S) 8228.9 (25Cll.2)
6230 (176.4) %10 (m.S}

"

82+15 (2503.9)

8222.2 (~.I)

=,
.00

(2507.9)
(84.4)

8229.9 (2.:l;6.;)
5010 (1.3.6)

1l2:!O.7 (2500.7) 821:l.2 (2500.2)
62;eQ (176.1) w.o (271.5)

M

&lH5 (~.8)

8211.8 (2507.8)

"no
.00

(~.4)
(8<.4)

8234.3 (25W.$)
5I)i(I (143.3)

82:14.9 (25IO.Q) :1236.4 (251(~~)
6210 (l7S.8) '~() (21).0)

oc

It!29.4 (25re.3)

~5 (2887.8)

"'"
."

(2510.2)
(84.1)

8237.4 (2510.8)
~ (143.0)

ll23a.2 (251l.0) ~40.i (251l.1>)
6l')J (115.3) %lC on_i)

~

9i'f.70 (2977.9)

8232.2 (ZS09.2)

It!37.1
""'

(2510.9}
(81.8)

&?:J'J.6 (2m.~)
S040 (14'-7)

It!40.~ (2511.]) ,!242.~ (25!2.3)
&180 (ll~.O) 959:.1 (2n.~)

~

8236.9 (2510.6)

101i9S (3107.4)

8241.5
"'"

{2S12.0}
(83.5)

8243.2 (25:2.5)
5030 (l4:~.4)

82.4,0 (2512.S) 821.6,,'J (2513.4)
6170 (174.1) ~S711 (211.0)

u

8242.3 (2512.3)

10WlS (322M)

8247.1
"'"

(2513.1)
(11.3)

It!46.6 (2514.2)
4650 (131.7)

8249.5 (2514.4) 82SI.! (2515.0
5700 (16I.~) &350 (2.5o.f)

y Flood ele..."tlons pertain totheprlmary<;t"'nn"i.ndusu"llyre.....inc:onstant lna l"ter.1 dlre<;tlona<;ross tho flOOd
phln. Ho..ever. flood elev.tlons In the outer portions of a t;ros. settlon ""'y differ from the primary ch"nnel due to
roadc:rOsslng., upstreamdlllersl""s, etc.

Tabl" pag~ 4

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