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<br />~ <br />! <br />~ <br />t <br />~ <br />I <br />~ <br /> <br />~ REVISIONS: <br />[ REV1 <br />~ REV2 <br />;,< REV3 <br />" <br />~ REV4 <br />~ REVS <br />- REV6 <br />~ <br /> <br />'" <br /> <br />~ ~ <br /> <br />o <br /> <br />ORIGINAL SCALE <br /> <br />00 <br /> <br />200 <br /> <br />=200 <br />. <br />400 <br /> <br />PROJECT NUNBERS: <br />COFC2003- <br /> <br />ACAO FILt: <br />OXBOW LOMR <br /> <br />DATE: <br />04/11/2006 <br /> <br />(NAIN CHANNEL) <br />HORTHERN EHGIHEERING SERVICES, INC <br />FORT COWNS, COLORADO <br />JUNE 2B, 2005 <br />CONTOUR INTERVAL.: I' <br />SCALE: 1-=40' <br /> <br />1 <br /> <br />o <br /> <br />ORAWN BY: <br /> <br />BAS <br /> <br />DESIGNED BY: <br /> <br />BAS <br /> <br />CHECKED BY: <br /> <br />CJP <br /> <br /> <br />ANdERSON CONsulTiNG ENGiNEERS, INC <br /> <br />Civil ' Water Resources . Environmental <br />772 Whalers Way, Suite 200, Fort Collins, CO 80525 <br />Phone (970) 226-0120/ Fax (970) 226-0121 <br /> <br />NAPPING DATUNS: <br />VERTICAL DATUN = NATIONAL GEODETIC VERTICAL DATUN OF <br />1929 (NGVD 29). <br />HORIZONTAL DATUN = COLORADO STATE PLANE (NAD B3) <br />. FLOODPLAIN AND FLOODWAY UNES SHOWN IN <br />ORDER OF PRECEDENCE <br />.. CORPORATE UNIT AND PARCEL BOUNDARY INFORNATION <br />WAS OBTAINED FRON THE CITY OF FORT COWNS GIS <br />DEPAlRTNENT ON JANUARY 10, 2008. <br /> <br />!l <br /> <br />------ <br /> <br />8 <br />228117 <br /> <br />(0 <br /> <br />HYDRAUUC BASEUNE <br /> <br />CROSS SECTION 10 <br /> <br />NORTHERN ENGINEERING SERVICES, INC <br />FORT COWNS, COLORADO <br />JANUARY 20, NAY 20, AND AUGUST 4, 2004 <br />CONTOUR INTERVAL.: I' <br />SCALE: 1"=50' <br /> <br />-TOPOGRAPHY <br />(LEfT OVERBANK) <br />DOWNLOADEO FRON CITY OF FORT COWNS <br />GIS NAP /SYSTEN WEBSITE <br />APRIL 1999 <br />CONTOUR INTERVAL.: 2' <br /> <br />-AERIAL PHOTOGRAPHY <br />DOWNLOADED FRON CITY OF FORT COWNS <br />GIS NAP /SYSTEN WEBSITE <br />PHOTO DATE: APRIL 1999 <br /> <br />NOTE: <br />ZONE AH IS THE FLOOD INSURANCE RISK ZONE THAT CORRESPONDS TO <br />AREAS OF 1-PERCENT-ANNUAL-CHANCE SHALLOW FLOODING (USUALLY <br />AREAS OF PONDING) WHERE AVERAGE DEPTHS ARE BETWEEN 1.0 AND <br />3.0 FEET. <br /> <br />REVISED CONDITION INFORNATION <br />A.) NAlN CHANNEL CROSS SECTION 228 <br />(LEfT OVERBANK) <br />-AS-BUILT TOPOGRAPHY <br />KING SURVEYORS, INC. <br />JUNE 13, 2005 <br />CONTOUR INTERVAL.: l' <br />SCALE: 1"=50' <br />UNC OIVlDED FLOW PATH <br /> <br />B.) <br /> <br />-AS-BUILT TOPOGRAPHY <br />KING SURVEYORS, INC. WINDSOR, COLORADO <br />JUNE 13, 2005 <br />CONTOUR INTERVAL.: I' <br />SCALE: 1"=50' <br /> <br />WINDSOR, <br /> <br />CROSS SECTIONS <br /> <br />COLORADO <br /> <br />11255 " <br /> <br />11595 <br /> <br />i <br />~ <br />Iii <br />I <br />~ <br /> <br />- <br /> <br />I <br /> <br />, <br />, <br /> <br />I <br /> <br />, <br />, <br />1 <br /> <br />I <br />I <br />~ <br /> <br />I---~: J- <br />, - J -- <br />----i ~ <br /> <br />- - -----< I <br />_...,_1 I <br />-l <br />, <br /> <br />I <br />~ <br />i <br /> <br />I <br />I <br />i <br /> <br />--f- ---- <br />I I I I <br />~_ _11____1 <br /> <br />~-- --~ <br /> <br /> <br /> <br />I, <br /> <br />1 -- <br /> <br />~ <br />E <br />I <br /> <br />--1--' r--J-' <br />I .1 I <br /> <br />'-~-jl '-~~- <br /> <br />l--- _L.- _ _ I <br />I ] <br />, L__ 1- '-- <br />----- -I I <br />I __ __--, <br />-- -j- <br /> <br /> <br />i <br />I <br /> <br />FLOOD <br /> <br />, <br /> <br /> <br />, <br />, <br /> <br />""" <br /> <br />, <br /> <br />, <br /> <br />I--II--~ <br />, , <br />, , <br />[ [, -~~ <br /> <br />, , <br />L- _ _ --..J I <br /> <br />--~ ~~==1 <br />I __-.-J <br />, -----] <br /> <br />, , <br />--- --- <br /> <br />, <br />, <br />L <br /> <br />I--TJ <br />, 1 : <br />:J _--=1 <br />, I': I <br />___ L ' <br />- - - ---.! <br /> <br />'---1- -- . <br />, ,,--I <br />I - - --..J t - - --.-! <br />;-----i, --- ' <br />-:::j~~~ <br />C-~1tH::~ <br />__ __L L <br />_ _ _ I <br /> <br />:~r-~C[::-: <br />- - _-:-: - - ~ <br /> <br />I <br />----:-- -- 1 <br /> <br />~- -----1 <br />~---- :: : <br />:]_rL:~~j <br /> <br />I' <br /> <br />, <br />, <br /> <br />1 <br /> <br />, <br />, <br /> <br />~ <br /> <br />, ' <br />-L_: <br /> <br />, <br /> <br />""" <br /> <br />, <br /> <br />, <br /> <br />~ <br /> <br />""" <br /> <br />, <br />, <br /> <br />""" <br /> <br />, <br /> <br />, <br /> <br />""" <br /> <br />, <br /> <br />, <br /> <br />""" <br /> <br />, <br /> <br />--- <br /> <br />D <br />~ <br /> <br />EXISTING CONDITION <br />- -- <br /> <br />ANDERSON CONSULTING ENGINEERS, INC. <br />RESPONSIBILITY LI~ITED TO fLOODPLAIN <br />HYDRAULICS AND fLOODPLAIN <br />DEUNEATION. SURVEY AND TOPOGRAPHIC <br />INfOR~ATION OBTAINED fRO~ OTHERS <br />AS INDICATED IN REPORT. <br /> <br /> <br />-, <br /> <br />=1 <br />, <br /> <br />3 <br /> <br />I <br /> <br />=i <br /> <br /> <br />-, <br /> <br />l~ <br />lj <br /> <br />ONE-FOOT <br />100-YEAR <br />500-YEAR <br /> <br />100-YEAR <br />FLOODING <br /> <br />BASE FLOOD ELEVATION <br />UNES <br />CONTOURS NAJOR <br />CONTOURS NINOR <br />SPOT ELEVATION <br /> <br />CORPORATE <br /> <br />5OO-YEAR SHALLOW <br />FLOODING ONLY <br /> <br />r <br />, <br /> <br />I <br /> <br />, <br />, <br /> <br />I <br /> <br />, <br /> <br />I !fI 'I' 'I <br />' Iv) f' <br />' 0 _ ~~, " , <br />~ "' uu, , <br />-. - -- ci- ~-~ - -~~ '" -~ ___<_ "', L <br />r - - - -, - - - ~~ - 1 - : - fI flI., ~, ..... <br />fc-- -- -- r :::r " '" <br />i'~A_:-f~'\ : ;:;-;[,~t]]~~L: Lu _______:--~'___.._::>''', ! <br />' ~ -p I ~~, I G . 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"~I / \ <br />. , - "" . <br />~ -" - "".' - , ~ ' <br />.A - - , -"-;;; ........ '" r-- , , , <br />. --=-"" - '0...,.. __. u ~ _ " , , , \ _ __ <br />'-=- ".'-, '--' - -, ~~u'" I., .. . ~, ____ <br />. -, - "-~"". . " , , <br />-,,,~ :M"",n~,_~: I , "1 \ \ <br />- oo"'~, , , , \ <br />~M' ~, , <br />.. ~~ ~;-~-'M' I , f '. , , <br />CASE NO.: 8 2002 'I I \ <br />' "rn'K' _~,c_. , \ " <br />- =, ~., "' , ..., <br />-, , .. \ <br /> <br /> <br />,{ /- 'il" <br />' , , : I <br />I, 'I t, .. I'. <br />{ r ~-'J "".... . ,: ", :/! <br />; , .- I <br />' '."": i <br />I ,f,: II, <br />- 'l' < ' <br /> <br />------1 ,r:I i ! <br />' I · <br />j :. I <br />'--- 11 i <br />! I 1-)-- <br />I -0 <br />-. rl :E-=>_ <br />:, I !:it- <br />j~,1 ~CJ) <br />, <(0 <br />I." .1' I lJJ w <br />l\f- NL..;;J- <br />Ij LL. :... <br />iil ~~ <br />:[, Zw <br />II, ~o <br />:', bu.- <br />It 00 <br />:.' It <br />It Ii"......" <br />II' ' <br />. , <br />- <br />SHEET <br /> <br />r--- <br />, 1 I <br /> <br />, 'I <br /> <br />I " <br />1___Ll <br />,- -IT <br />I ,I, <br /> <br />I I I I <br /> <br />L __ Li--'_ <br /> <br />MAGNC <br /> <br />,--lTTr ~-~!l-fT; <br />UlliLl_u~ I :_ ::~F~J~ <br />,-::rT-ITTL--l t - : ~-- ; <br />CACHE LA POI DRE RIVER <br />o ~8 )W LEVEE PROJECT <br />LE -T PREVISION <br /> <br />x 4945.3 <br /> <br />UMITS.. <br />PARCEL BOUNDARIES" <br />SPUTFLOW /ROAD OVERTOPPINO <br />PROJECT AREA UNITS <br />PROJECT BENCH NARK <br /> <br />CROSS SECTION STATION <br /> <br /> <br />......, ~\ <br /> <br />, <br />""" I <br />""", : L,' <br />'''"'''' k: <br />i . ..... ...... ~' \ <br />::=1"" ' "~ \ <br /> <br /> <br />, <br /> <br />L~~ '-'"" '~~ <br />, ,~ <br />. I I "- <br />----I' "" <br />::--j~:'- <br />__u-j ~~ <br />1- _ -TT I: : U: ' <br />L_ll_,lJ 'LI <br /> <br />-- <br /> <br />~ <br />~ <br />4950 <br /> <br />DIVIDE <br /> <br />D.) <br /> <br />CROSS SECTIONS 229322-229757 <br />(RENOVAL ACTION LONR, 2005 (REVISED 2008)) <br /> <br />(RIGHT OVERBANK) <br />ARIX CORPORATION GREELEY, <br />NAY 19B4 <br />CONTOUR INTERVAL.: 2' <br />SCALE: '-=100' <br /> <br />(NAIN CHANNEL) <br />NORTHERN ENGINEERING SERVICES, INC <br />FORT COWNS, COLORADO <br />JANUARY 20, NAY 20, AND AUGUST 4, 2004 <br />CONTOUR INTERVAL.: I' <br />SCALE: 1"=50' <br /> <br />-TOPOGRAPHY <br />(LEfT OVERBANK) <br />DOWNLOADEO FRON CITY OF FORT COWNS <br />GIS NAP /SYSTEN WEBSITE <br />APRIL 1999 <br />CONTOUR INTERVAL.: 2' <br /> <br />COLORADO <br /> <br />3.) <br /> <br />7 <br /> <br />-EXISTING SURVEY INFORNATION (SPOT ELEVATIONS) <br />KING SURVEYORS, INC. WINDSOR, COLORADO <br />FEBRUARY 2, 2008 <br /> <br />FORT COWNS <br /> <br />-TOPOGRAPHY <br />DOWNLOADED FRON CITY OF FORT COWNS <br />GIS NAP /SYSTEN WEBSITE <br />APRIL 1999 <br />CONTOUR INTERVAL.: z' <br />(NOTE: EXISTING OXBOW TOPOGRAPHY INCORPORATED <br />'NTO PORTIONS OF THE GEONETRY DATA OF CROSS <br />SECTIONS 10540-11700.) <br /> <br />UNC DIVIDED FLOW PATH <br />-AERIAL PHOTOGRAPHY <br />DOWNLOADED FRON CITY OF <br />GIS NAP /SYSTEN WEBSITE <br />PHOTO DATE: APRIL 1999 <br /> <br />~----~ i~[j <br />, j ----, <br />--- - - I <br /> <br /> <br /> <br /> <br /> <br /> <br />-, , <br />I ___ <br /> <br />'-~-' ~--l <br />r- - -r---L--- <br />I I:J--J <br />-- -J <br />, , , <br /> <br />t_-j ---~ <br />l-_ ' , I <br />--- <br />---- <br /> <br />OAK STREET <br /> <br />1--------- <br /> <br />, <br />, <br /> <br />I <br /> <br />, <br />, <br /> <br />I <br /> <br />, <br />, <br /> <br />L <br /> <br />------- <br /> <br />OUVE STREET <br /> <br />~ <br />, <br />, <br /> <br />I <br /> <br />I <br />, <br /> <br />I <br /> <br />, <br />, <br /> <br />_ J <br /> <br />----I <br /> <br />:--n. -it=-_.-~ <br />CI\~~ __, <br />~~ : --~ <br />-- ~L-_~L_, <br /> <br />, <br />, <br /> <br /> <br />, <br />, <br /> <br />I <br /> <br />I <br /> <br />I <br /> <br /> <br />f'. <br />en <br />L() <br />~ <br />N <br />N <br /> <br /> <br />, <br /> <br />/ <br /> <br />I <br />I. <br /> <br />r <br />f <br />j <br />1 <br />, <br />I <br />, <br /> <br />,/ <br /> <br />, <br />i' <br /> <br />'- I <br />........---------- <br />, <br /> <br />I> a- v / <br />'} ., <br />l:] , r ... <br />" , <br /> <br />/;~-,~ <br />} '- - - - - - ~ ~'--"" <br />~, '-, <br />N , ~ ' <br />Nt I ',~ <br />- L . l ~"~' <br />' - -,- - - -- - ~ ~ , . <br />--'- - - ---- -~ ~ , , <br />' ., 0 , \,', \ <br />. '.. I' , <br />,.. - -~- ..".. - - ", c \\ <br /> <br />'\ "\, <br />......, ~, \ /, .;.~\ \ <br />' \:. , 1i- \, \ <br />\ , \V (, '\ <br />\" X' ~ \, \ <br />' " ,\ <br />' ~ <br />\ \ \ '".,''' \':1 <br />-- ~ "\ <br />\ ~ <br /> <br />, <br />~", <br /> <br />\ <br /> <br />/ <br /> <br />48 <br /> <br />" <br />, <br />" <br />X <br /> <br />, <br /> <br />\ <br /> <br />.~.' <br /> <br />, <br />,< <br /> <br />< <br /> <br /> <br />, <br />, <br /> <br />"'- <br /> <br />, <br /> <br />, <br /> <br />/ <br /> <br />'" <br /> <br />, <br /> <br />'( <br /> <br />/ <br /> <br />, <br />I <br />, <br />,1; <br /> <br />, I <br /> <br />/ ~ <br /> <br />, <br /> <br />~" <br />,1> <br /> <br />I. <br />1:.1(: <br /> <br /> <br />~---~-,---I <br />I -~ "~-' <br />: If"--~ <br />1 : 0 <br />: I ----;p <br />I " ~ <br />" OJ <br />~___--.J L-___ <br />e <br />---w <br />'I -I If'. <br />[: <: ~ <br />,L--~" N <br />- ---W- <br />e <br /> <br />LEGEND <br /> <br />F'LOOOWAY* <br />FLOODPLAIN <br />FLOODPLAIN <br /> <br />SHALLOW <br /> <br />r-m--III- _---l <br />, 'L' - <br />'I ~I. : <br />~ _-~:=j t,'-=l <br />~ --~~' --, <br />~ :::=1 ::~ <br />i -- <br />I" . I <br /> <br /> <br />JJ1iII-J <br /> <br />- <br /> <br />REVISED CONDITION <br />- -- <br /> <br />C.) <br /> <br />GENERAL <br /> <br />) <br /> <br />I <br />i <br />i <br /> <br />=--~--\:! -- ----- ~-I <br /> <br />, , <br /> <br />- ~ ~--- t=:: =i' <br />"'~---~ '-----, <br />:~-~~ . ==3 <br /> <br />- - - - -. ..;.. _ _ _ ---1 <br />, , <br /> <br />, - =1 ~ ~ f l ~;TT -l <br />i : : : : i .1' : .,': : <br />,_Li_jJ,_...l.L_J <br /> <br />B.) <br /> <br />NOTES: <br />EFfECTIVE CONDITION INFORNATION <br />A.) CROSS SECTIONS Z22377-Z281 <br />230017, AND 230467-234557 <br />(EFFECTIVE FIS STUDY, 1998) <br />-AERIAL PHOTOGRAPHY <br />ARIX CORPORATION GREELEY, COLORADO <br />PHOTO DATE: NAY 1984 <br /> <br />1- - ----- - - ----- - - ----- <br /> <br />, <br />, <br /> <br />I <br /> <br />, <br />, <br /> <br />I <br /> <br />, <br />, <br /> <br />I <br /> <br />, <br />, <br /> <br />L______ <br /> <br />-AERIAL PHOTOGRAPHY <br />DOWNLOADED FRON CITY OF FORT COWNS <br />GIS NAP /SYSTEN WEBSITE <br />PHOTO DATE: APRIL 1999 <br /> <br />CROSS SECTIONS 228637 " 2288B7 <br />(RENOVAL ACTION LONR, 2005 (REVISED 2006)) <br /> <br />-TOPOGRAPHY <br />AERO-NETRIC, INC. FORT COWNS, COLORADO <br />NOVENBER 8, 1996 <br />CONTOUR INTERVAL.: 2' <br />SCALE: '-=200' <br />(NOTE: 1896 TOPOGRAPHY WAS NOT USED TO <br />UPDATE GEONETRY OF LENAY AVENUE CROSS <br />SECTIONS, 221637 " 221702, IN HYDRAUUC <br />NODELS, BUT WAS USED FOR FLOODPLAIN <br />DEUNEATION.) <br /> <br />CROSS SECTIONS 21801Z-221702 <br />(TlNBERUNE ROAD LONR, 1999) <br /> <br />-AERIAL PHOTOGRAPHY <br />DOWNLOADED FRON CITY OF FORT COWNS <br />GIS NAP /SYSTEN WEBSITE <br />PHOTO DATE: APRIL 1999 <br /> <br />-TOPOGRAPHY <br />ARIX CORPORATION GREELEY, <br />NAY 1984 <br />CONTOUR INTERVAL.: 2' <br />SCALE: 1-=100' <br /> <br />COLORADO <br /> <br />7. <br /> <br />229997- <br /> <br />i <br />i <br /> <br />2 <br /> <br />2.) <br /> <br />B.) <br /> <br />EXISTING CONDITION INFORNATION <br />A.) NAlN CHANNEL CROSS SECTIONS 227397-228 <br />(LEfT OVERBANK) <br /> <br />E.) <br /> <br />D.) <br /> <br />CROSS SECTIONS 7680- <br /> <br />-OXBOW PROJECT AREA TOPOGRAPHY <br />KING SURVEYORS, INC. WINDSOR. COLORADO <br />APRIL. 2004 <br />CONTOUR INTERVAL.: l' <br />SCALE: 1"=50' <br /> <br />-AER~ PHOTOGRAPHY <br />DOWNLOADED FRON CITY OF FORT COWNS <br />GIS NAP /SYSTEN WEBSITE <br />PHOTO DATE: APRIL 1999 <br /> <br />-AS-BUILT SURVEY DATA <br />ICON ENGINEERING, INC. ENGLEWOOD, COLORADO <br />FEBRUARY, 2001 <br />(NOTE: THE AS-BUILT SURVEY INFORNATION WAS <br />USED TO UPDATE THE HYDRAUUC NODELS, BUT <br />THE 1984 FIS TOPOGRAPHY WAS USED FOR <br />FLOODPLAIN DEUNEATION.) <br /> <br />CROSS SECTIONS 230193 " 230355 <br />(BOAT CHUTE LONR, 2001) <br /> <br />-AER~ PHOTOGRAPHY <br />ARIX CORPORATION GREELEY, COLORADO <br />PHOTO DATE: NAY 1984 <br /> <br />-TOPOGRAPHY (CONTINUED) <br />(RIGHT OVERBANK) <br />NORTHERN ENGINEERING SERVICES, INC <br />FORT COWNS, COLORADO <br />JANUARY 20, NAY 20, AND AUGUST 4, 2004 <br />CONTOUR INTERVAL.: I' <br />SCALE: '-:::IlSO' <br /> <br />, <br /> <br />I <br /> <br />, <br />, <br /> <br />I <br /> <br />, <br />, <br /> <br />I <br /> <br />, <br />, <br /> <br />I <br /> <br />, <br />, <br /> <br />J <br /> <br />~ <br />~ <br />! <br /> <br />I.APOR'11: <br /> <br />..._-~ <br /> <br />MAPI..E SmEET <br /> <br />1-----' :----: <br />: : I I <br />~---,J: ; <br />: :1____1 <br />l-_-_=-_-_1 i I <br />--i--t1 : <br />L ," I <br />, 'I ' <br /> <br />IJ___L :___j <br /> <br />AVENUE <br /> <br />7 <br /> <br />2340 <br /> <br />'--'1 <br />: : I, <br />I r'-l <br />, I, <br />I ~ 1 J <br />~ -I' <br /> <br />, ' <br />, ' <br /> <br />L--_J <br /> <br />, <br /> <br />L I.L. <br />I-'~O- <br />J~l <br /> <br /> <br />-' <br />-I <br />~ <br />~ <br />IE <br />f <br />:), <br /> <br /> <br />'-li-- <br />-- ~ :' -: <br />r-----=1 ~ ' <br />_ _-.J <br />t~~ !--~: <br />[~"'-~ 8~ <br />--~~--I <br /> <br />,-,1- -I - - l <br />l ' " , <br />I I I I <br /> <br />l~~~~ <br />8t~-j <br />, l :' I I <br />L _ ---1 I I _, <br /> <br />MOUNTAIN AVENUE <br /> <br />; - -11- --n- -1--' <br />, , I, I f-----1 <br />I I I t I I _ _I <br /> <br />, , I: -1 <br />:_ _ _ _1_ J -D_l ~ ~ <br />1--T--TTTIr-[: <br /> <br />I I 'I I 'I I <br /> <br />I 'Ull' " <br />1_ _ L _ _ _ 1_ _ ~ <br /> <br />, <br />, <br /> <br /> <br />/ <br /> <br />/ <br /> <br />, <br />, <br /> <br />... <br /> <br />. <br /> <br />" <br /> <br /> <br />......---- <br /> <br />~ <br />~ <br />en <br />~. <br /> <br />. <br /> <br /> <br />, <br /> <br />I <br /> <br />'" <br /> <br />" <br /> <br />:'\ <br /> <br />" <br /> <br /> <br />, <br /> <br />, <br />" <br /> <br />r <br /> <br /> <br /> <br /> <br /> <br />,.._ -'l. <br /> <br />I . <br />~ <br /> <br /> <br />~- .~ <br />'\ <br />- - - - _1- -\..__- <br />_ --r' -=~ <br /> <br />- - <br /> <br />~ <br /> <br />, <br />. <br />~ <br /> <br />" <br />" <br />" <br /> <br />-, <br /> <br />=1 <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br />, <br />, <br /> <br />,..... 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