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Last modified
1/25/2010 6:44:53 PM
Creation date
10/5/2006 12:14:09 AM
Metadata
Fields
Template:
Floodplain Documents
Designation Number
293
County
Rio Grande
Community
Del Norte
Stream Name
Rio Grande River
Basin
Rio Grande
Title
CWCB Review Report - Floodplain Management Study - Rio Grande River near Del Norte
Date
9/1/1988
Designation Date
1/1/1989
Floodplain - Doc Type
Educational/Technical/Reference Information
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<br />./' vegetation consider'ed <br />verification with historic flood <br />v photographs <br />_~consistency with previous studies <br /> <br />. <br /> <br />5, <br /> <br />Blockage: <br /> <br />y~ <br />'Q- <br /> <br />6, Roughness <br />Coefficients: <br /> <br />7, Consistency: <br /> <br /> <br />cons idered <br />reduction in conveyance <br /> <br />huma.n intervention <br />emergency response plan <br />not cons idered <br /> <br />,(nO <br />,t040 <br /> <br />range in overbanks ,050 to <br />range in channel ~~ to <br />S~<- Tt 1\, <br />agreement with contiguous studies <br />comparison with previous profile <br />changed cond i tions <br />previous study in error <br />j usti fication <br />change <br /> <br />FINDING: <br /> <br />. <br /> <br />The hydraulic anal~ <br />standards of ~Rule <br /> <br />~ <br />meets does <br />5T""(detailed) or <br /> <br />not meet .the minimum <br />Rule 6.C, (approx,) <br /> <br />L- ./ 10o-year flood <br />~ 500-year flood (optional) <br />~/,consistency with profiles <br />'-'" cross sections <br />'-' reference line and stations <br />'---""' flood contours <br />....... scale 1 "=1000 I or better->detai led <br />scale 1"=2000' or better->approx, <br /> <br />.__'__~,--.-1_....,.:.'M_=';:.'...""_'=";._"""'It'_tri'''''''"'.........,.....''~;,...~<>-'"'''''''~~,'.:.,~~~,.....,."..,..------,--,..,,,.~-----. <br />~, Dlscrepancles: ~v profiles and map <br />--WQ. IICC-2 and hydrologic table <br />corporate 1 imi ts <br />othe rs <br /> <br />D. Published Report and Map <br />1:&'1 Detail- Rule 5 <br /> <br />1. Report Document <br />Includes: <br /> <br />2, <br /> <br />Flooded Area Maps: <br /> <br />,,',""~,.,'~' <br /> <br />. <br /> <br />-9- <br /> <br />1____1 Approximate Rule 6 <br /> <br />V.....--ti tle <br />....... date <br />I./" bi nd i ng <br />~ hydrology write-up <br />~ hydraulic wri te-up <br />,:::./f looded area maps <br />V" profi les <br /> <br />II <br />I '" <br /> <br />( <br /> <br />fOD <br />
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