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FLOOD07595
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Last modified
1/25/2010 7:12:13 PM
Creation date
10/5/2006 3:05:49 AM
Metadata
Fields
Template:
Floodplain Documents
County
La Plata
Community
Durango
Stream Name
Animas River
Basin
San Juan/Dolores
Title
Floodplain Information Report
Date
6/1/1974
Prepared For
Animas Regional Planning Commission
Prepared By
US Army Corps of Engineers
Contract/PO #
&&
Floodplain - Doc Type
Floodplain Report/Masterplan
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<br />Strea~flow records are nonexistent for Dry Gulch Creek. Therefore. hydro- <br />logic and meteorologic data for r~noff were synthesized from records of <br />other stream basins having hydrologic, meteorologic, and physiographIc <br />chllracterlstlcs sl~llar to those ot tho streMI basins undor study. <br /> <br />~ <br /> <br />FlOOOS!TUATlON <br /> <br />SOURCES OF DATA AND RECORDS <br /> <br /> <br />There are five preclpltlltlon stations In <br />tributary to the study rClIChes. Records from <br />the basic hydrology stUdies lor this report. <br />stations ~Sed are shown In Table 3. <br /> <br />the draInage area directly <br />these stations were used In <br />Pertinent data on the <br /> <br />Inlormatlon relative to past Iloods was developed trom streamllow <br />reoords, newspaper flies, transcripts of publlchearlngs held by th eCorps <br />of Engineers on potential flood control projects, post flood reports pro- <br />pared by the U. S. Forest Service and the Corps of Engineers. and fro<n 1I <br />flood control project prell~thorjzlltion report entitled "Anl~as River, <br />Cc"loraoo end New Mexico, February 1950", propared by the Corps of Engineers. <br />Basic hydrologic data were derlved trom str'(lamllo-... recordS of the stations <br />shown In Table 2. <br /> <br />TABLE:> <br />PRECIPITATION STATIONS <br /> <br />TABLE 2 <br />STREAM GAGING STATIO~Sfa) <br /> <br />NUmbe/aJ StatIon Normal Ann~al ReeordedPr'(lclpltatlon <br />Name PrecloltatlOl1 Oct 4-6, 1911 J" 27-29,1927 <br /> (inches) (Inches) <br />, Durango 18 3.42 3.79 <br />2 Tacoma 22 (b) 4.05 <br />, Electra lake " (b) (b) <br />, Cascade '" 2.72 2.60 <br />5 Sllverton 22 4.25 '.1l6 <br /> <br />StatiO? ?erlodof Maximum Recorded <br />Number b) Station Naone Record Peak Flow <br /> c.f.s. date <br />, Animas River at (0) 25,000 0,' <br />la95-present 5, 1911 <br /> 0",....,9" <br />2 Lightner Creek near \927-\949 1,850 Oct 25, 1941 fd) <br /> Ourango (2,630 Oct 20, 1972J <br />, JunctionCroek nCar 1959-1965 300 ",y 21, 1965 fd) <br /> Durango (1,780 00' 20, 1972)' <br />. Hermosa Creek near 1911-1928 2,980 "y 12, 1941 <br /> Hermosa '"' <br /> 1939-present <br /> <br />fa) As 8hOl.17l 0>1 PLaCe J. <br />(b) SCatio>1 not i>1 operation at time of storm. <br /> <br />7 <br /> <br /> <br />The topogrllphic m<lpS prepared for thIs report TO show lIreas 1'hll1' W(l~ld <br />be inundated by largo future floods (Plates 7-9) were based on U. S. <br />GeologIcal Survey 7.5 ~in~te quadrangle sheets enTITled "Durango East" and <br />"OurangoWest", both dated 1963. Stream profiles and crossseetlons were <br />developed from contour ~aps s~pplled by the Colorado State Department of <br />Highways and by photogrammetry of aerIal photographs taKan In August 1973. <br />In total, data for about 200 cross sectIons were developed for use In pre- <br />paring the report. Structural dimensions on bridges an<lculverts..ere <br />turnlshed by the Denver and Rio Grende Western Railroad Company, tho City <br />of Ourango, by the COlorado State Department of HI~hways, or obtained bv <br />field investIgations during the oreparatlon Of this report. <br />S <br /> <br />fa} Dtlta I1Mom are frcm 1"ecorodll' pllbUllhf!d bi: the /J. s. GeoLogioo.~ SII.MIi,Y. <br />fb) As ehor.monl'tate1. <br />fe} Intenrn.ttent recorda prior to Ja>1I1.QI'J:I 1922. <br />(d) Peak .f7.0lJ df/tf/mined [MIll high lJatQr maJ"k/J by the 11. S. Geo~agical <br />SUMJIIY after flood. <br />
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