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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 />. <br /> <br />a, Map Accuracy; <br /> <br />V':tatement on map "This map complies <br />with National Map Accuracy Standards;~ I{ ,/ <br />fieldfhecked by 1$:/1 Mvll.eVtv-f!(1t!SJiCUI/Jt< <br />onOor-. 1- 3, 1?f3 (0 <br />, <br /> <br />~/ <br /> <br />Topographic base mapping _ meets does not meet the nllmmum <br />standards of __ Rule 5,A, (detailed) or ___ Rule 6,A, (approx,) <br /> <br />FINDING; <br /> <br />D, IIydrologic Analysis <br />~. Detail- Rule <br /> <br />1. <br /> <br />Frequency includes: <br /> <br />5 I_I Approximate - <br /> <br />L-- <br />10-year <br />l.----' 50-year <br />V 100-.year <br />~Oo-year (not required) <br /> <br />Rule 6 <br /> <br />2, Methodology used; <br /> <br />years of record available <br /> <br />. <br /> <br />l?\ 0 &.Y'I!-~ gage MCiiI1.klh'2~ years 1 ~ <br />1<10 (gIf(J;vl}ie-'. gage ~ years ~ <br />. /" gage years <br />a, ~ Streamflow records over 50 years etc, <br />b, Streamflow records 25 to 50 years etc. <br />c. Streamflow records 16 to 24 years etc, <br />d. Streamflow records less t,b,an 10 years etc. <br />regional skew O. U <br />~ mixed population <br />combined rain and snow,. 7 <br />historic flood of ('12 <br />comparison with similar watershed(s) <br />synthetic analysis using rainfall runoff <br />model <br />precipit8tion records <br /> <br />3, <br /> <br />Drainage Dasin <br />Conditions: <br /> <br />-"'"' " <br /> <br />~.conditi,,,ns in 12 months <br />future urbanization likely <br />foreseeable development <br />, <br /> <br />~~ complete wi thin 12 months <br />~ adequate progress <br /> <br />5, Detention Char'acters; n .government body owned with a executed <br />, legal agreement (in compliance) <br />"",r.illately. owned ...ith..no writt"'l'I.l"9a1---'~"-'-" <br />~-~.- --~------ agreement (not in compJ.iance) <br /> <br />4, <br /> <br />Work in Progress: <br /> <br />. <br /> <br />-7- <br />
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