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FLOOD04721
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FLOOD04721
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Last modified
1/25/2010 6:47:03 PM
Creation date
10/5/2006 12:55:07 AM
Metadata
Fields
Template:
Floodplain Documents
Designation Number
301
County
Arapahoe
Community
Unincorporated Arapahoe County
Stream Name
Piney Creek Tributaries
Basin
South Platte
Title
CWCB Review Report - FHAD - Piney Creek Tributaries
Date
4/1/1989
Designation Date
7/1/1989
Floodplain - Doc Type
Educational/Technical/Reference Information
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<br />" <br />;..; , <br />'-- <br />I! <br /> <br />.^' <br /> <br />. <br /> <br />. <br /> <br />. <br /> <br />6, <br /> <br />Diversion Characters: <br /> <br />-~(~ <br />-~ <br /> <br />does affect hydrology <br />does not affect hydrology <br />should not use stream data recor'ds <br />from to <br /> <br />7. <br /> <br />Previous Studies: ~_ <br />()WC.b O~"I' '1Ci"'n, No, If'i <br /> <br />existing infor'mation LL J <br />title FI4A~~~/~t..1 U1J/M\AAJO C\'l!J...(. <br />title u-(~~~ K"'1''J~' <br />title . '1.. vO~ +-151.7)' <br /> <br />new conditions <br />new methodologies CUHf'e IfC <br />comparison provided <br />compatible wi th previous flows <br />significantly different statistically <br />confidence limits <br />90% confidence interval <br />50% confidence interval <br /> <br />FINDING: <br /> <br />The hydrologic )(na1ysis -X meets _._ does not meet the 0I1rllmUm <br />standards of 1-'- Rule 5.B. (detailed) or __ Rule 6.B. (approx.) <br /> <br />/' <br /> <br />'{\) (}v <br /> <br />C. Hydraulic Analysis <br /> <br />_._ ~/ 10-year <br />_ 50-year <br />_... v' 10o-year <br />~ 500-year (optional) <br />frequency-elevation <br /> <br />/ 100-Y(lar <br />/-Jl 500-year (optional) <br /> <br />// <br />,/ <br />.. <br /> <br />1. <br /> <br />Water Surface <br />Profiles included: <br /> <br />2, <br /> <br />Floodplain <br />Boundaries: <br /> <br />3, <br /> <br />Methodology: a. <br /> <br />b. <br /> <br />4, <br /> <br />Delineation <br />Procedures: <br /> <br />7 <br /> <br /> <br />-.8... <br /> <br />table <br /> <br />step backwater method <br />HEC-2 <br />other <br />alternative method <br />published manual <br />assLlmed depth method <br />depth stated on maps <br />geomorphic features method <br />history flood method <br />rating curve method <br /> <br />contour <br /> <br /> <br />vVKiA t lS '7 <br />fkis .,OV'tJe.I.~ <br />
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