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1 ~'-~<\:~~~ ~ .... - ~ ... '6 i i -~-_ ~\ .;,;r -~ ~ . 100 Year Flood Plain ;! Improved Channel Conditions '-'-,--- =--:....:.::~..:::----- -----=----- ,- bonk _ nol ~-\hydr.......I~..........,toM..n '~c-o,~~ "...r~ _" ~....... ... IT. ... - ,-- ~ t Channel p,~ 1'\. I, . < ~ -- .,' ..~.. /~.--:.\1/..- \:\\ ~ I ././ .... /~.........i~:/ .... '::oi\ i ./ / __ , . _ '. _" . 10 _// .::;.5 " "',,-,," \~~:~':~ - ~-----;/ -~ < ' ./ ----~- - Umits of Shall~"'" flooding '~,' ," :.-----/" ~ . ,\ ) ~5,,, , \L~~\:i//"Z'_';;-' ~;I,/"_I_=/~ jc1/~~~;~;~E~ \,',. (-;J~; Ii, '~> ... J <,,, -:~>;;!>?) . ;;....S,.........r .~(f .')"'+:.i I" ,_ ", L_"';_',C~,:) /J -~:Ol <\ \c.'l;/( ...\ \~:'. / . /1.11 i..'-.' " ,~_ "'" " ", \; t/ ,,\, -'. "... \. ",'\,.,1. \(-,,( ',' \ "" e"o" ,'~\ ' \', "-.' '\ ,.. '....' \ \~ "-\\:". . " " \'\ <'f{+, '~s \ ~:>: \ .<..\'\0 " .i' " -"'.,""'>' '\\\;,.\ ~ .. .. '-..............::> ~ \\ ~,~ , ~-.'-:<<~ "\ ,:;-., . ~.> \.: ':~:. "\' . ~ '':; , -- - -- 1 ',; ,\ \.\ \ ,", \"\" \ >, '~~ ':- ~ " ~',;'''' '. -..... , ':.... ..... ----:..." - , ~~. .'; -.... .9 -~~ ''',,'\ ~.~\.:~:! I: ....- ~!\'<t~o'd' (l/~j' ~~ ~ 'I' ~ ~,,- ...:-;. . ~ ',~ \ ' ......;. :>_1--- _<'" ", .~ ....\-"\ '\~ - .~';;/! \~"S'Oo ('_~......... .. ""'. __ _~\__ _-- - ~~~ ~ :_ "';/ )J , ~ ~ ." <' <~~\o~2,~"_~< ~ .~::., '.. ~ c.,:~>.~.. ~~'_:=_'~.. c.. /. --'" . ~~~ ~...~..~;i:_____~\ 'i" ...... .. . '-.... ~:~_ -_... ~ \ Shollow ....IMnk flaodM not hYd,oul1coll, .. .:--.... ......:::. ~_ c:::.=.c_~~~::.:_ ~--..~~ . '~, "9< I:'... " .. / conne..... toi.~F- ............. --- ---- -----:~ ----..:., -- ~ ~,'.. STRUCTURE I~~OV~ -. - -:~ ME~&- '_~. .,~ . ',. ' \ ?;;. LOCATION CCLO HIGHWAY 93 . ~N' ,,' ~ '''''~~Ei!~- ------------ ----< ~~">--"~~. --",--_, '.-~. ,',~ ~'--- ---- ~ --"', ~~~ TYPE OF Atploc'.~'il7ZCMP TYPE OF~"" ............---NONi----------..- ____:-:-- ~t' ,.,~ ~...............__ .-...A IMPROVEMENT ~.mJcIIwOl1fMl ardl IMPROVEMEN"",,...- - ,---- _ --- ..".a. EXISTING ST~E EXISTING STRUCT"~:------ i==~-~-.- -____. __ ~__==_=_-----~__ ,lir--- OPENING AREA (FT") 28.S CftNING AREA i~~; -'- '" :;!:8_3 - ---- _ - ---- -=--~":.::- '--- --- ',-. PROPOSED STRlIClUlE '82- PROPOSED STRUCTllAIi" 6 OPENING AREA IFTI) OPENING AREA (F';':i~~ '2"'~\ '" ~o u::NI CtKlRO ~o ~CHORO ELEIAIITIQN. (FT) flBIO.O ELEVATION. (FT) ~, EXISTING CHANNEL 5800, I EXISTING OiANNEL N\IERT EL[vATlON. fT) -INVERT ~TlONt (FT PRCFOSED CHANNEL ~-' PROPOSED CHA~L INVERT EL.E\oIIl.TION . f1) INVERT Eu"'T~. (FT ...~.. 8: i"l ~ 100 Year Flood Plain Existing Channel Conditions ~ ~ ~^,-"""", _'M~_A\~A, ~ . m..~"'~. . I I 1 .'+ 1\ ." .0 o " I I I I ~. ;~ ~jJf'" r _--:-0-- \'" .'- 1 \ ''!I ~ .'., ".._''---~- \ \ 'j> c. .~. ", ~-- " ..... '\\ I ..... ., ". - -- - ] ..~. '-" '.,----- - ~;~o I 5799 r----_ :;......... 5793 ......~"- ~::::__J --:::.:::--- - ---,- -- -. -'-.......... ~.~~ "~ ." .. 0.-..::::'---- I.~~~~: ...~..-- ."."- ..,.....,..... ~\.......,./- --~--'\ ..... .. '. ". .,o'~" . . . .... 7?'" \ ,....,...,~ I " . ~" I.', 58"?"b I - -~, '....,'- 5193 ) . ----...,,---. --.. -_stc647tQO 10 sto.a~ DMign DiIQIlIr9I 5000 cfs Main Channel '-''''' V.locity 10.0 Ips NOTE' Thi. draw... ia . ".,., ..... .eet repneentinQ pnIn'liftcI'y cnI concIPhlIIl ~. nlhollnotblUNdfor conlfrvction purpoMI. UltKt 10 ~, ~. . -~- -._-. -, :~:-.:.._- ---.- '- ',--. -- -- I REMARI<S REMARKS o 000 zoo NOTE, For 00 yecr cIIechcrIt ....... channel C4IfIditiDN, CI'Id othIr fIowI. .. Mill'" Plan AiIpOrt. Mtotond 01 Ctl'lM. lint of .Iruell,l~ DATUM IS lolEAN SEA LEVEL MeO&tWed al--e r of .INCILlnI 1 _I :.. ---=- -=.. =.... [:,. ~'f" . + :.' .... r , Wa+ Sw oa. ~ofI1 I t I . t_ ."L'cc..t:: . 1mJl!-l. . "s; u . ! .: "... . j j . '\c... I .c.:..- .. 1 =-,. . . : I , , :--:::i___ + . ... j- r+-~"'~+- FXisti g and Impr ved ~honn ~--;~~./ : -- t +-- t i j .... -... .-- :::..~-r-. . '. :- 'c::::::::r.. . .:-. .. ~780 5790 -- c:.r:....- '-'-: - ===- ~ .. ~-.:.... . . .::...=j :=: -'= ......: f,:Jt::=::~. ~--= ....~ - -. c....: .... =-. W- - =~~ ~ - ........ "~~~ ,. -:r:.. -. .... ..:rr:r'-. ==,,>;:-.. .cc.... ... .... .-. ~20 7S0 .... -.:...--'C...~...... ..... .c_. ! + , --l-.c_J .~ I ~IO = \ ..--. ....=-- ~m-'-:: .... ......~:. .. ..-.::.' Yfrto<Srfoc .stinV:IlGnt.';""'............ ::lOO -r~..P-aflI. :., -. ~ ._. . ... .. _: 1=_.... ...w -..;.; .- ... - W """' 00 ... w .. .1 = .:. -= . ..=-'-. - -- ~ ",.'c. . ...... .-" ~770 1 -'- __-on _; I -J-. " \ 1 ."'- -1 t _ 1 I ! .. 1 5780 =-: 1--. : I 1 i , I i -"- L !. r1 i"l. : . ~760 -'- ....- 5800 ..:... w. , , ~. ---.' I I! ---h.t [ ~ 57~0 J 57.6 569.00 --..--- .. n --=:: .- -...... .... . . .':-'- ~7l5O .::= - I I I I i -- ".-t- -- , ~ 'e-w I 1 1 560+00 ; u I -. - =: j.. . .'. ... '.. ~7'1O 5471'00 ~80+00 !57~..oo 570..00 555+00 ~so+OO I BROUIHlCONTltOlSUIIVnn AfIlIALPHOTOell"PHl' .Y TOPOGRAPHIC aUPPINII ." CONTOUR INTERVAL l' ..~,~.I. INC ,GU cn"u WRIGHT-McLAUGHLIN ENGINEERS ".Xl AiCOTT ~TRfET DHNEA COLORADO 6021\ TfUPHO"" ,JOJ' "~8 6>0' DESIGNED flJ':d DATE /-7~77 D"AWN~-- o.n~ CHECKED~~DATE~ REV'$EO~~D.TE.i....LJ2 URBAN DRAINAGE AND FLOOD CONTROL DISTRICT MAJOR DRAINAGEWAY PlAM\lING RALSTON Slo. 547.00 CREEK to 510.580400 SHEET I OF 40 CITY OF ARVADA JEFFERSON COUNTY RALSTON CREEK I LEYDEN CREEK OAff nOWN 8/'J0174