FLOOD01619

• Designation Number: 320
• County: Jefferson
• Community: Arvada
• Stream Name: Lower Ralston, Van Bibber, Leyden Creeks
• Title: Major Drainageway Planning
• Date: 2/1/1986
• Prepared For: Arvada
• Prepared By: UDFCD
• Floodplain - Doc Type: Floodplain Report/Masterplan

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STRUCTURE IMPROVEMENTS l;//~' (, ," I', 'v,/ .-; /., NOTE THIS DRAWJNG'IS A M!lsq-,ER J3'L~N~_"'HEET rr=
"" ,\,J~<, ,;>'.,::'/ . '\ -~'" / / '$ 12' MAl NT.- - REPREStu::rING 'f:?BELlMINARY'<AN ~ ~~~TUt~L 120'
LOCATION- MILLER ST /'91". 1"''"\\,!06.--' ",\.290 . ",PATH ~ f----- ENGINEER'~'\ IT SHALL ~OT'jlE ED .ot> /,
DESIGN DISCHARGE 3500 cfs ',.'\" -\., <) CONSTRt;lCl1~N\ PURPOSES ,\"SlJ~J,E ::r ,To'\:~I\N*
CROSS SECTIONAL ,/ <' ORI\llNA~\ I$<?# )~, "t~\ ).. ". ~ LOW

^"E~~::: ' ::.' ('5<<;\ '\<;'~., \'. :" ::.~ I r." "\ i

y:;;/. /..-<:~>/ " . \~ '\\', .....,~r "'<'
INVERT ELEV. (FT);.,_"./ '" '\', COBBLEIRIPRAP FREEBOARD, - . ". 0.7' MIN.~ 'Iilif?JI' / . L'-9 I
EXISTING 537544 __ ~:> " , \" LINED- lOW C" ~ -\1 " // FREEBOARD 16'
- \ / \" \ \ FLOW CHANNEL . i'! ""-IDE i,'f:;?/,,:,--
PROPOSED 5372 I ... /', ,\<, l ~~ i ~6-~~~I~~TTF ~AcJ.~. \ "", ,~'.' ", E ~f~:~E~~:R::OW---~ ___~
CROSS SECTIONAL ., ,_ \, -1 LIMITED --.... '< CHANNEL
HEIGHT (FTI " ',' ,.;" ': TYPICAL IMPROVED CHANNEL CROSS SECTION?I' ,,' TYPICAL IMPROVED CHANNEL CROSS SECTION
EXISTING 488 [-;<,'. )~~ / E"'"";"r-Il ~E$I(;(}AL^/\ (EUROPEAN TYPE) STA. 230+20 TO STA.234+00 . ../\ 'c,-,y;;iv, \\,'~~" (GRASS LINED) STA, 207+00 TO STA, 212 + 45 . ,/.(
PROPOSED 8 2 ,10er:....,VIRyFLOODPLAr~/ /QlO:3400 cfs VIO =9.0fps.. .QIOO:6900Cf$ ~\ ,f;,X1-,S'r{NG...,.'P.OiYR., :'/.' "," \\,',', QI.0..o3.50.0CfS '. VIO = 6.,4fPS ..OIOO:7100CfS \\ ),,'
TVPE OF IMPROV REPLACE . ~ y ., <:", "",. ~ '., ,'FLOODRi.-'AIN / .... \,'" ' x,....... ,. . "" 'v /, .A< , '.. '/,.-
'r /'/;-'~' ":/\,. .... /\ \./ \...SfRE..ET.,..L....OO.U.,'.N..G. \'.' '......\ /f.,.!;~I$,1'ING\1j)0-,yt<.r.'^.~$EE>SNEtT.(5A:\FOf!'~) \ \':.;>"

W..'T/H~ ") '~D':: B/R/'DG,,~^,E:/..,.(..'./ /~/'/...) ,...,' ';/?/\<~<:"'~TlNG JOo.yl{ \ 'l,\V',_\;;~~~~~~Fi~, //\,/:/;./~i;:/<\\\\tL~~\,~,>\,L~~Pt~/'Ni~~~~R~J'/ '. /) '\\\
. ~:;)j"'~ d'/'<:C:\), ~L00DPLAII\l \ --. --":C:,\~- .\.>/" '.' \~\, \:~;. \, .'",,-\;;; ~,/:(1 ",,'$1A/21.1<.6'5 REPLA9e{,"\ \;
STRUCTURE IMPROVEMENTS,/,), %\ Yo;. J'/ //' :\ // ':____ ---',- - --::. ,. ~--//":^> ,c. \ '~~?<)\;~\\\'" \,<'V'\ -\'" . \'\<\\\~~\"/1/?/!~/~~]$~Rr~c~ft~/\\\.
LOCATION. OAK ST l~,~~\ /, (<"',d.,." ' "~;7E;6;~~\t~~~~~~;<\""~' .~..'/. ......'\'". .'\"/.'. \.\\ \. '.' ../ \ '-'C';'.'. \',,\ ,1/, '. '--~A.S.^AND..WATER..' / '>
=: ~~~~~;~:~ 3400 cfs .~~~~~~iN;>, .'\r,-o-:; ~;., ~";J~ L < -T.p",,~ '_.J. ;\ )-\'~'~~::;!t"'~.."~' ;.;/<':;'" . >)~\J>'I>\1'" (~C~~. .' ~?C
AREA (FT'I 'o" I. ';, \ Y ~,..o-~~- '-------.:~___-_. "/.'/,.\:.~.~~\\;~'.\..' //\'~'.'\.\), ,/" . ."A' ..' "~:\',
EXISTING 90" . ,v ,\ ;". ''--',' / \ "" " \; "", \~~~"~~~' ...~. ,-c ".0.
f-PROPOSED (FT) 44B < ~~gVES~~:~c"~s ~~";?225+00"'\/~'1~ ~~~,.~ ..' //~\ ....~i' ~\ '.. ~

5388.20 .. \ v"\... .'
5387.2 /. "~, )" /' -RESIDUAL"100~.YFt
.. ,~' \ FLOODPLAIN""~<'
.' ".~ '---->-." ~~
EXISTING G.;;;...: ::; c--.-'''' ". .A--~'. J{!- --"',-' , -', RESIOUAL ~~ ._ "; co:"~. "~~~~'_ " 'IN '
PROPOSED 8 ,:::... /'I;:i, ""'. ________ FLOODPLAIN ./_~ 2/5'.:00 _. __ V, c,x-"'",IT '/-,Q \,
TYPE OF IMPROV,' REPLACE Co' ------"l. J--. "",' ~f' _<. 'C." . :/, \'ii,"-ST", 227+00 TO STA. 230.45" _____________.. \ ," ." ." '. , .::,-.'=~/ @; \ ~ ~~ c,'<- V ,O~\
WITH 4, B, 14 BOXES '" ":;Y: .'7 :7 ':t. " /' j, TRANSITION FROM Mx.'. _____.... STA. 214.9Q. To STA. 212+90 .' ,~j ~ ~ / ' ':;'(';4-MAINT \
- -.tu ' ..y.. .7 . r'\" -CULV.E....". .T".'.1...0. . .".X ..'.ST'N.G. CHANNE..L, '. j~ T.R'ANSI.TtGN I'RG. M "El1ISTING~' t 'lJ t ..~./ p,'\, \~. ACCESS' E ISTING, ,
- - .' ,.\.......) ,<'-- <' l.. - _if '" '\-%" , , '-/--.-:--' ~ ~ CHANNEL TO GRASS LINED / J.l> /:.'''\ .. ,-YR FlOODPLAttJ
--' __1-._ '.-, MAINT;-.! ' ,ij'.,. . HA EL 'f/'f/<' .
~ - --.... -- - I.u '- - G T ~ S ' . ,",,.-, /, ~ >5<<"'-"",-_, '" ' C NN . "" "",' / 1/ . ,'_ :'\'\\ ' .....
. -, \, , w ---' - - ,--, ACeES , . '.' .;' . /'",.~X.ISTING ".RESIDUAL '-., , . ". '\" .
c,' '\, .. / -- -ifi'~- I7"V'%(,~, STA 2'2"''''G5 REPLACe lC"'p,Y~ FLOODPLAI~." -----.....''/; !//~ > " \ \'. '
' ' '\ :''''',,,,/,, ,^ ,,~ i/~vl;;'~" l)J!\ ";>i" OAK sY08QSSING WiTH- \ ' .... . ________ Z."; " /\ \. ,
/?'~'''\' , /', (< )""""~, A..: / ' " '~'4-'8-"4 BOx'.S AND', __ ..... '/' s' ,\ \
-jA(c ~/ --' A\,\ iff~' ,,, /~~__ /' ' LOWE.R GAS, WATER Ar,ID SEW.R \~;.... ( '~'
:x.,\/\/;', ,/ \ v'>: \ RE~OCAr,t''21~'SAN, .sEW~R"> \:; /, ^-.. t.INES\ ' 7,' "'1>".\ -PURCHA$E AND -RE.MOV \
;: dt'/ 'j~' r/\ \/ .},\:~:D' T9: EAS!;MEt'l-T OU;r$IDJi\Ol:lA1\INEL / .'\4" K'/,' ' , .\." IWME5 , '~' , \\
-'<~'5[Ji' .... X'7~ -".' SlilttAL lOll i'll, hQODPL1\IN Y'-':' / .. . ~~ol:i -y \ I " (\ /; / ;'-/RE ~-iQ'Q 'I1t.:.N_OOPj'X4IN
>>i<,;; :t". (\ \\..../ ,'- ~ C NTA~~Jj WITH1~ CHANNEL" /' '/' /' ...\'- ", .... ",.."' ) ":1 I ,i,/'-/.// ... -" N N D Wlo.TLltM CfJANNEL-,
/' ".; \... '>\ --:" \', ' \ \ /' :/ ~, " , " .,/ '1- /' '-... ')..,""'Z.

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1- . L--. . . II -, T '! c . . .. +-. r'-JL-- j.J;,+ . ''1- ........ . =f-- I ! i E.... <{ '" ,:3-f1MPl YR, ==t
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:::::t=='='-' [c.ct;;::=='c-l =,:ccT =tF+-ct u.:-t J=:_ . ~~:JI~.I .~,

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- "I-- --t :t:'1:1"o.~3' AN Eb-=_, I-- +=:::; - ..!__-=~ G N e-..- j--' :41 -.-;
230.,.00 225+00 220+00 215+00 210+00

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GIlOUIlOCONTROLSURVEY8Y
AERIAL P~OTOGR"'PHY BY
TOl'OGRAPHIC lII",PPING IIY
COIolTOIJIl IllfERVAl t

DDD
B~B MERRICK

WRIGHT WATER ENGINEERS

OESIGNED;r;!~ DATE /~
DRAWN ~?"''''~ DATE ay"g~
GHEG~EO ?7V,,- ;tRY DATE ...d?/~
REVISED 2!>'*"'o" l>.I,TE ,~, AS'

URBAN DRAINAGE AND FLOOD
CITY OF ARVADA

CONTROL DISTRICT
JEFFERSON COUNTY

MAJOR DRAINAGEWAY PLANNING

RALSTON CREEK
PLAN AND PROFI LE
STA, 207+00 TO STA, 234 '00

SHEE T
5 OF 37

DATE nOWN 5-3-83

.....0 WRI!ITI1 AVO;.
aUITE ...._A
"'"'NY"", CO 80...1
'3031 "80"700

LOWER RALSTON / VAN BIBBER / LEYDEN CREEkS