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<br />PlAIt fLOWS AT
<br />COLFAX/FEDERAL INTE~CHANG[
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<br />'~:-:-TrF:-'~-
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<br />9
<br />, I ' , , , ,
<br />. ......
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<br />Hydrographs ,t the Colfax/Federal Interch.nee .re not avellable, but peek
<br />flOWfI "~b. '-pproxl..ted by ......ln9 lub-b."ln Al nOlI and thet portlClrl
<br />of .ub~ ..In A2 flow thet II diverted south fr~ '6th Av.. at Grove and
<br />F..rel.
<br /> S Yr 10 Yr 25 Yr 100 Yr
<br />Q t AI (Colhx' Lawelp 17' ct, 271 ef. )28 cfs 1t)2 ef.
<br /> (@ SO .In) (, SO IIlTn) (, SO 1I1n) (, SO .In)
<br />le.s: Flaw diverted north
<br /> by Stora S_r ,
<br /> Lowell ~ ~ ~ ~
<br />fluw Entering Interchange
<br />'rQlll West la efs 206 eh 26' as 361 ef.
<br />L...: Flaw diverted south
<br /> to Dry Gulch by r-.p
<br /> from ...t bound Col-
<br /> faIC to south bound
<br /> Feder.l .u ill ill ill
<br />Flow Thru Interch~ge 'rom
<br />West 51 cfs 103 e.fs 132ets 18" cfs
<br />PI",: F'ow entering Inter- 36 65 81 113
<br /> e.hange from north (, 0\5 mtn) ((I 50 mln) <t 50 mln) (@ 50 .In)
<br />TOTAL FLOW THRU INTERCHANGE 93 ds 168 cfs 212 cfs 297 cfs
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<br />-::::,=-::,:':7.0
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<br />-.+---.- ._-.
<br />!:...~---_.~ - ~ .
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<br />,30
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<br />Note: Because of the approximate nature of the method of determination Df
<br />,.ak flows at the Interchange, no atte""t was ..de to offset hydrographs
<br />Al tnd AZ, since the peaks differ by only 5 .Inutes. Also. the loe..t rain-
<br />f.ll In the Immediate vicinity of the Interchange was not taken into account.
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<br />2.0
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<br />.. . . . . . ~ -. ~ .
<br />. .. ....... - -
<br />.. .........
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<br />FIGURE B-3 FLOWS AT DESIGN POINT A*
<br />COLFAX/FEDERAL INTERCHANGE
<br />
<br />FIGURE B-4 HYDROGRAPH DESIGN POINT AS 20TH & FEDERAL
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