FLOOD07075

• County: Denver
• County: Jefferson
• Community: Denver, Edgewater, Lakewood, Wheatridge
• Stream Name: Sloans Lake Basin
• Basin: South Platte
• Title: Flood Hazard Area Delineation
• Date: 10/1/1977
• Prepared For: Denver / Lakewood
• Prepared By: UDFCD
• Contract/PO #: &&
• Floodplain - Doc Type: Floodplain Report/Masterplan

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PlAIt fLOWS AT
COLFAX/FEDERAL INTE~CHANG[

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Hydrographs ,t the Colfax/Federal Interch.nee .re not avellable, but peek
flOWfI "~b. '-pproxl..ted by ......ln9 lub-b...ln Al nOlI and thet portlClrl
of .ub~ ..In A2 flow th.t II diverted south fr~ '6th Av.. at Grove and
F..rel.
S Yr 10 Yr 25 Yr 100 Yr
Q t AI (Colhx' Lawelp 17' ct, 271 ef. )28 cfs 1t)2 ef.
(@ SO .In) (, SO IIlTn) (, SO 1I1n) (, SO .In)
le.s: Flaw diverted north
by Stora S_r ,
Lowell ~ ~ ~ ~
fluw Entering Interchange
'rQlll West la efs 206 eh 26' as 361 ef.
L...: Flaw diverted south
to Dry Gulch by r-.p
from ...t bound Col-
faIC to south bound
Feder.l .u ill ill ill
Flow Thru Interch~ge 'rom
West 51 cfs 103 e.fs 132ets 18" cfs
PI",: F'ow entering Inter- 36 65 81 113
e.hange from north (, 0\5 mtn) ((I 50 mln) <@i 50 mln) (@ 50 .In)
TOTAL FLOW THRU INTERCHANGE 93 e.fs 168 cfs 212 cfs 297 cfs

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Note: Because of the approximate nature of the method of determination Df
,.ak flows at the Interchange, no atte""t was ..de to offset hydrographs
Al tnd A2, since the peaks differ by only 5 .Inutes. Also. the loe..t rain-
f.ll In the Immediate vicinity of the Interchange was not taken into account.

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FIGURE B-3 FLOWS AT DESIGN POINT A*
COLFAX/FEDERAL INTERCHANGE

FIGURE B-4 HYDROGRAPH DESIGN POINT AS 20TH & FEDERAL

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