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<br />St~t Ion
<br />NlJmber
<br />
<br />FLOOD SITUATIO~
<br />
<br />SOURCES OF DATA AND RECOR~S
<br />
<br />Intorm~tlon rel~tlve to p~st floods was developed from available
<br />streamt low "nd precipitation records, trom Interviews wi t~ local reS I~
<br />dents, from research of newspaper files and historical documents, 1lnd
<br />from reports ot other Federal asencles. B~sl<; hydrologic datCl were
<br />derived from streamflow records of the stations shown In Table 1 (page
<br />6). T~e gaging stations are shown on Plate 2,
<br />
<br />The maps prepared tor this report were based On U,S. Geological Survey
<br />7.5"mlnute QUCldrangle sheets entitled "Colorado National Monu ment",
<br />"GrandJunctlon.',and"Clitton",edltlonsof 1962. Cross sections and
<br />straam profiles were developed from large scale topographic MapS prepared
<br />In 1966 and furnished by the Western Colorado Reglonel Planning Commission.
<br />Structural d"ta on bridges were obtained from MeSd County, the Colorauo
<br />Oepartrr>entoftllqhways, and The Denver and Rio Grande Wostern Ral I road;
<br />anutyGorpsofEr'glneerspersonr"Tl,lldurlngthecovrseofthcstvdy.
<br />
<br />fLOOD SEASON A~D FLOOD CHARACTERISTICS
<br />
<br />FloudsaruundGranuJunc1'iQnvs,",allyoccurlnAprll,May,dndJune
<br />from rapid molting of theO'.Ountaln snowcack,occaslonaIIYi'lv9"",nt ed by
<br />rain. Thundorstorms, that may beaccomp,mied by intenseri'linfall,can
<br />occur in the region from late May tnrough September; hOwever, rvnoff f~
<br />svch storms h<ls little effect on streams I.lS large.:lstheColora(joa no
<br />GvnnlsonRiv"rs In Th..Grar>d Junctlnn"rea.
<br />
<br />"
<br />
<br />"
<br />
<br />TA8LEl
<br />STREAM ,~AGING STATIONS ((}.)
<br />
<br />Station
<br />Name
<br />
<br />I
<br />2
<br />
<br />ColoradO River nCar Dotsero
<br />Color"do River at Glenwood
<br />Springs
<br />Roaring Fork River at
<br />Glenwood Springs
<br />ColoradO River below
<br />Glenwood Springs
<br />Colorado River at New Cas!le
<br />Rifle Creek nel.lr Rifle
<br />
<br />Per Iou of
<br />Record
<br />
<br />1940-Present
<br />
<br />1899-1966
<br />1905-1909
<br />1910-Present
<br />
<br />I 966-Present
<br />1966-Presont
<br />1939_1946
<br />1952-1964
<br />1966-present
<br />t933-Present
<br />1935-Present
<br />
<br />ColoradoRlvernearPaliSl.ldel902_1933
<br />r~nnl50n Piver bolow
<br />Clvo Mesa Dam
<br />
<br />>.1,,~ 1m"", Re,",orded
<br />Peak Flow
<br />c.l.s. Date
<br />19,100 J<.tn 8,1952
<br />
<br />30,100 Jun 14, 1918
<br />
<br />19,000 Jul 1, 1957
<br />
<br />19,200 ~ay 23, 1969
<br />20,300 May 23, 1970
<br />
<br />1,720 Aug 9,1963
<br />22,200 May 23, 1970
<br />36,OOC J~n 1935
<br />3,920 May 27, 1942
<br />52,400 J"nI6, 1921
<br />
<br />8,680 Jun 21,1965
<br />
<br />19,000 Jun 15,1921
<br />
<br />35,700 May 23, 1920
<br />
<br />\25,000 Jul 4, 1884
<br />
<br />56,800 Jun 9,1957
<br />
<br />(a) An data ehat,!?1 1_""" "xt)">l(!ted from U.$. Ocotogiaat SUM-'cy pi"ork..t",,,a.
<br />
<br />,
<br />
<br />,
<br />
<br />5
<br />6
<br />
<br />,
<br />8
<br />8
<br />10
<br />"
<br />
<br />Colorado RIver near DeBeQue
<br />Colorado River near C~meo
<br />PI"teau Creek noar Cameo
<br />
<br />1963_1968
<br />
<br />t90.3-Prosent
<br />1894_1895
<br />1896~1899
<br />1901-1906
<br />19l6_Present
<br />1884,1907_
<br />1923
<br />
<br />I?~I-Pr"sen'"
<br />
<br />FACTORS AFFECTING FLOODJ:iG MID ITS II~PACT
<br />
<br />IZ
<br />
<br />Gunnison River belo.
<br />r.unnlson Tunnel
<br />
<br />Obstructions to Floodflows . There are tl~e ~rldges Lrossln~ the ColoradO
<br />
<br />serious obsTructions to f loodl lo"s. Heavy debr Is ""y ~ull..ct On the pi ers
<br />oi tho (;olorll~o HI vor brl~Scs but wou I d C~"Sn on I y sma II r Is..s In the ""ter
<br />
<br />River and one crossing !he Gunnison River In !he stud~ area. None cau5~
<br />
<br />,
<br />
<br />13
<br />
<br />Gunnison River near
<br />Gr"ndJunctlor.
<br />
<br />COlorado River near Fruita
<br />
<br />COlor<ldo River near Colo-
<br />rado-lItah Stat" Line
<br />
<br />6
<br />
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