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FLOOD09584
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Last modified
1/29/2010 10:12:05 AM
Creation date
10/5/2006 4:28:43 AM
Metadata
Fields
Template:
Floodplain Documents
County
Dolores
San Juan
Community
Southwest Colorado
Stream Name
San Juan, Dolores, Uncompahgre Rivers
Basin
San Juan/Dolores
Title
Office Report on May-July, 1973 Snowmelt Floods in the Upper Colorado River Basin
Date
4/1/1974
Prepared For
State of Colorado
Prepared By
US Army Corps of Engineers
Floodplain - Doc Type
Flood Documentation Report
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<br />tributary of the Aniaaa River, overflowed ita buk. due to e loa j.., <br />creating a new chaDnel through priae pa.tureland, threatened and d"'aed <br />aeveral ~., irrigation ditche., a road ud bridge. On Junction Creek <br />several .ectiona of road and a private bridae were washed out; al.o <br />aeveral h~s vere threatened by floodvater.. Lightner Creek wa.hed out <br />two bridae. and a county road, .everal diver.ion d... and a headgate, <br />and aeveral irrigation ditche8 filled with aud and gravel. Floodwatera <br />virtually isolated motela, a pizza parlor, a reataurut - bar co~lex <br />ud .everal reaidencea for aeveral day.. Floodillg on th..e creaks at.o.t <br />caused a repeat of damage auatained during cloudburat flooda of October <br />1972. 011 the Florida River approxiaately aix irrigation claaa acro.a the <br />river wa.hed out due to hiah water. Down.tre.. of Durango, Colorado, the <br />Aniaa. River cauaed ainor eroaion d...ge to field., roads, and irrigation <br />facilitie.. In Aztec, N_ Keld.co the c088unity'. culinary water illtake <br />atructure required _raency action by the Corp. of Engineera to r...ia <br />fUDCtional. The co.-unity of Flora Viata, located adjacellt to Faraina- <br />ton, 1iI_ Mald.co, evacuated a riveraide trailer park aa a flood _raenc)' <br />precaution during the high vater period. <br /> <br />15. 011 the La Plata River irrigation ditch.. and a atr..~ae were the <br />larse.t 10.. it.... OIIly ainor overbuk floodiag vaa reported ill thia <br />vaterahed. <br /> <br />16. Bauer Lake, all offatre.. storase unit to Chicun Creek, tributary <br />to the Manco. River, experienced emb~nt .lippase around the outlet <br />worka vhich at.oat cau.ed the daa to feU. Ellersency action by the <br />Corp. of Eagineera repaired the dova.tr... .ide of the d.., and a dra_ <br />down of the vater in .torase vaa acco~liabed by puapiaa and cuttiaa <br />two wing daaa, averting aigaificut d...ge. to the co.auait)' of KaQcos, <br />Colorado. Residents .ere evacuated froa the vest ead of towa duriaa the <br />_rgency period. Jackaon aeservoir, an off-.tr... reservoir located <br />near the city of Manco., i. fed fro. the Mancoa River by a canal. Mud <br />.lid.. froa rain and .no~lt runoff plugged this intake canal at <br />.everal locationa and broke concrete vall. at threa locatione. The <br />caaal baa a capac:l.ty of 250 c.f... and, durina DOraal oparatioae. :I.. <br />used to reduce flood peak. on tbe Mancoa Riv.r above tbe city of Maaco.. <br />A peak flov of 1.110 c.f.a. d...ged irrigation faciliti.a, road. and <br />bridle. in and near the co.aunity of Manco. and on the Ute Mountain <br />Indian aeservatioll lands dowu.tr... of Maacos. Field d...S" vere aiaor, <br />conaisting of eroaion, .edtaeatation ud fence d....... Tba culiDary <br />vater deailtiug pond. were thr.atened when the intake .tructur. protective <br />riprap va.hed out. Eaerg.ncy action by the Corps of BDginear. in con- <br />junction with local towaapeople averted daaage to tbe co-.uaity'. <br />a_ge pond. and high .chool wbich wera threatened by high .ater and <br />eroaion duriag the runoff period. <br /> <br />8 <br />
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