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<br />bridge gegi~g stetion nOer Monto Vista since may 1926.
<br />
<br />TABLE 3
<br />IIIGH~ST TE~ RECO~D!:D fLO'.oIS IN OllDER rw roAr.NITllOE
<br />RIO CRANDE NEAR MONTE VISTA, COLORADO
<br />1926 _ 1 'l~7
<br />
<br />end high inton~ity reine ovor the plains regio~ in conjunction
<br />",it" the physic"l fe~turBe of the ~l1ter~~'od can produce the con.
<br />centr~tion of r~noff that choracteri7es floods of high p~ek rlw~~
<br />
<br />Tabla includes flo~8 recorded ar ostimated at tho U.S. Csologicai
<br />Survoy g~ging station near the Gunbarrel Road bridge, Mile 76.7.
<br />Orain"ge area ~ 1,590 square milos. Zero of gage' 7 .6.~4.16.
<br />
<br />end e~tended durationo,
<br />Plate 2 shows tho peak flo~ di5~11".'Y"'~ ~nd Y01lro of
<br />occurronce of tho Ilighaet t,,~ recorded flows since 1927 at the
<br />Cunbarrel Roed (U.S. Highway 285) bridge gag~~: ~tation.
<br />
<br />Order Caoe Heiohts Peak
<br />Nu",ber Date of Crest Stam) [lavation Dh~harqe
<br /> reat feet ~.f.s.
<br />, June 30, 1921 7.35 7,661.51 18,500
<br />, '"' n. 1948 7.37 7,661.53 7,100
<br />3 June 19, 1949 0.00 7,662.16 6,650
<br />, '"' n, 1944 6.28 7,660.44 5,860
<br />5 June 9, 1942 5.96 7,660.12 5,420
<br />, June ", 1941 6.22 7,660.38 5,240
<br />., July n, 1957 7.00 7,661.16 4,66C
<br />, June 13, 1952 6.75 7,660.91 4.500
<br />9 June 14,'1938 5.34 7,659.50 4,480
<br />" '" ", 1958 6.73 1,660.89 4,090
<br />flood Occurrenr,:,,,,
<br />
<br />Duration of FloodinQ
<br />Table 4 shows approximate du~"tions and types of
<br />runoff fur certain floods of .scord on tha Rio Grande in the
<br />vicinity of l"'o~t-~ \Ild~. Plate 3 shows th~ ~i~"'''~r~~ ~:..jj:agraph
<br />at the Gunbarrel Road (U.S. Highway 2~5) bridge stream gaging
<br />etation for the flood of Juns 1927.
<br />
<br />TASLE4
<br />
<br />DIJRATTON OfrLOClOS Of RECORD
<br />
<br />RIO CRANOE INVICINlTY OF MONTEvrSTA
<br />
<br />Analysis of climatological deta end review of the
<br />flood history for the Rio G~"ndo subbasin in Colorado ahow that
<br />mo~t flood p~oducin9 sto~e hevA haen experienced during the
<br />transitory periods between spring and summer, and summer and fall,
<br />The ~"terehed lie~ in " tran$itio~al zone between the Gulf of
<br />Moxico end Pacific rainfall provinces, ~ith attendant complex
<br />meteorologicalconditionscomplio",tedfurtherbythepusancIl
<br />ofaxtenoiva mountainous eraae.
<br />
<br />D~te 0' Duration lc tl~ys.
<br />FloedPeak 0.1 Norto Hamoss R"noffIvoD
<br />JLln" '. lOffi , Sno"",,elt
<br />June 13, 1906 1 S~o,"mBlt
<br />June 30, 1907 , Sn"~m,,lt
<br />Oct. " 1911 , Ralnf~ll
<br />Jun<' lO, 1917 , . Rainful1 and
<br /> eno_Rlt
<br />June ", 1921 . " Sna,",~.elt
<br />Jun.. ", 1927 , , Rainbll
<br />
<br />M"..t ef the ,,,,mmer precipibo.Uen in the are" 1s de~
<br />~ived from the tropical Gulf region when rainfall results from
<br />~
<br />thundarstorm activity ~hich c~n p~oduce modorate Btor~s of CGverol
<br />days duroUon. No maJer flood producing liter..." have occurr~d in
<br />t.h" "f1f'~r RIo Grands basin duril'Q the ",intor monthe because pre-
<br />~ipitatlon io moetly in the for~ of 9ne",. Lata spring enowstorms
<br />
<br />'D~retlDn in d~yo repreBA~ts days of flooding abov~ ~~c~ flow 0;'
<br />B .C.OO ~.f ,e. for :)e1 Norta: 6.000 c.f.". for Al".~oo".
<br />
<br />10
<br />
<br />10
<br />
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