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1'<,.- I- I >t- . 1'>""', . 0 '5's "?'1'''t- -;"ooS(' C-1- ; ", "" ---- - - --- -- ~--+-'l_~_~_~_~_~'-i~';'+ A hi) a' %$;'0 ~J - - - - -- UNITED STATES DEPARTMENT OF THE INTERIOR GEOLOGICAL SURVEY I MAP OF FLOOD-PRONE AREAS 4','65 I SW LARAMIE: WYO. 50 MI i fn? IL/VERMQRC/ R. 70 W,. .. LIVE. ~MORE. ", MI 'I' e' 10' 486 t -~~7+---M I ,- ~( I 13 '211( ~ ~ I .~. I :~ > <\J '~ ' '--~+ .~~";<'7 "" ,,~\ j') . -, - . \T" ~ . \ l \~ '\ ~~\_I \f'i A ~ '0-6': ~LJ 'ij ~ ! I . ~' R ';.,J '0 .i .~..'. '2....... ./ 1\'" ._.,.....:";,':"',l:"",,,~,!r ,~I ."~:Yg I !,riP . j~ ~.~ ; 'c "" Ji.;>ra. ",' ~:> - g " I ',:., ,ppe", ?'"' ~ ~ ~':"~' - 0 I ., - --~_' :~~._ ~V"'~-=-= - "~'- "'-+"'-. ,k ~ , wi". 0 _ 1$ a " ~,:.r 0 I "{ ,i "~.lf a: <( I 3 -.JIg 01 ~M j 5479 ),1 IS lOr)~15' 4~ ~4 r. '83 .- L-7 - ~ \/1 n. IP'-..' 14 V'\:-:{ 12'30' R. 69 W ., --_. ~84 ""00'-::1 I 480000m E. :::,0-- \ T- -~-V-l\~ ~ 1 . I~ . ..-' g,;}9\ \\ ~ ',' ," ,I ,. S ) \ "" ~:." - o~.\'o"o. ..\....5... (' ~ ,.J I )? ~,'-, "10"". 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C " 127.}. .'.;,{ I.((' ,. . 1"\. ,. 26<- '--.....-" S~ ..,--" 'v n \ (" ' (/ 'l-J ':> - ,~~/'-.-~ / .- '~_"~'" '-i (' \ J 1) f-~ !}.' ),.,'-:1 ,.~"'.~.';'_.' ~,;;;;;.:,..6._~~.....'Y ~~. "''''~.''''-.. --':.' 1/.1 ~,) ~\(/-l\.T\ ~'i. :."".,",.".'" ~-d!:::.RJst,..,.,;;:;--- '~ ,.,:,;,!'., ,4;'-'"., ~ - '*'l:J\... lOr. '. '.. '--.' r . ,,rIg I 58"\ "----0 . ,'~' vv, - "r '" ~.'" ;."n~OJi'ir\, """ "" \ /~ '--.-,."",1. o . ,"., "'>rl,.... ~--..~ ", 'v 1."."... ,.~~..,...C""'"". /!. Clou-cty -( "0:> r. ~r-. +~- . . ... ~ """, - I ,-pas1 I'. .' . :z: .--J 1 ~, // ',~'~'-..-I""1 r "../' ~.+-_.:.) ~,_c.",-- - ~'--.~ .-,..~..-~." ...-+,-~:,:" ';."'.,' ;. 40037'.30. "..1--.:~---.... /',' - x ~/ , ,^" '" ~.I..;-- ~ ~..:....~.>..;...;:..~_L"-"~r J....__"-L..:...-~~.__"."""_ " ............ l05"lS' i7070000FF.[T '80 481 '82 12'30" 483 Approximate boundaries of flood-prone areas are shown on this map. There is, on the averagE', about 1 chance in 100 that the designated areas will he inundated in any year. This information is important to public agencies and private citizens concerned with future land developments. The flood-prone areas have been delim.ated through use of readily available informa- tion on past floods rath~'r than from detailed field surveys and imWt'ctions. In general. the delineated areas are for natural conditions and do not take into consideration the poo- sible effects of existing or proposed flood control structures except where those effect!,; could be evaluated. Flood areas have been identified for: (1) urban areas where the up~ stream drainage basin exceeds 25 square miles, (2) rural areas in humid regions where th{> upstream drainage basin exceeds 100 square miles, (3) rural areas in semiarid regions where the upstream drainage basin exct>E'ds 250 square mile::;, and (4) !:lma-lIer drainage hasirl>, depending on topography and potential use of the flood plains. The 89th Congress. in House Document 46..~, recommended the preparation of flood.prone area maps to assist in minimizing flood losses by quickly identifying the areas of potential flood hazards. More detailed flood information may be required for other purposes such as structural designs, economic studiel:o\. or formulation of land-use regulations. Such de- failed information may be obtained from tht. U.S. Geological Survey. other Federal agencies, or State, local, and private agencies. . 1974 "". 5fBI I~ ,-'?....~ \,:." ~-? \ ,son 480OC)(} FEn r ":" ,. ,~<$o, rc-""""'" ~I '% ~>b,"* # :""'1"'-~StJ.; 6 "'''p1 '">"'"024,% _ " "- Ii' \ \ .~~, ,\ " , SA";" . -A:' \ \ .' \ \ .~ .. ~t'-:- " ~~ " " .M .. . ~/i " ""':"""- .' ,. . ~6}5-. I( ,I :t 5ii;' \., . ~ J' Ii' Floods delineated in this area in greater detail by the Corps of Engineers. U.S, Army ,01 " .- .- ", 0" 4498 I . ~\ 1\" \~ >'%1"9 , h , '!i Hellvue Ii (8M 5~24)' .",:"",". :"r"",!,,~,- ..;. ;1 ~ / .~ ~~~' IHOR$E r007H REseRVOIR} 4965 II sw " .:,:;fJO St.~te- ,..., . r5hHiJtch~y -~..~......... .~ 485 I R 70 W ~~ $/00 ~~ .:l..___~_--o.-:_ :.- R 69W 10 486 ,,' .' ,,' ,.) ....O~< ~~ \,' .>.0 \:)fJ f-'- ...q J' ,0 SCALE 124000 1 0 ~_~ ~:._ ~____.. .'::~~...::E2-""' _ 1000 0 1000 ZOOO 3000 4000 5000 ~~.-:'---"--";:".- ..=.~ .,==~'::-_::'::::''l:~ I 5 0 ~~r.=:;:l=.:F.;--:-iI:--:-I=.r. .~>:~~ 1 ~i!..( ""-iF-~- "':c::.,?~~'3 6000 7000 FEn s;,::[::':::=-__J 1 KllOM(TER ~--'" I e;:-.'- _ i- I ~ " I' ~ I:: "1 I.: ~; r: ~: 1,J;, I" 1'1.'1' !", 1 , I I ,I'. ---i~--'--k-'C'"-,...- ;~ " '} l ~,\\ II L I I I <P, ~I . ~l '\\\-1 I , I I I I I t. I .J +,~~ , q Ii " " " " , 2 . . !;}SO ------~f" ~ ~ M o ic<;: i'"Q' ,. , . " ,!>:"'~. '<- 0,,- ~ , iSi'Qno,!'lY ~ @ .0 ,0 ,PRONE CONTOUR INTERVAL 40 FEET DOlTED LINES REPRESENT 20 FOO1 CONTOURS OA1UM IS MFAr4 SEA LtVf.L This work was performed by the U.S. Geological Survey for and funded by the Federal Insurance Administration, Department of Housing and Urban Development, to meet provisions of the National Flood Insurance Act of 1968. L~~ (JUADf<ANGU. lOCATION LAPORTE QUADRANGLE COLORADO-LARIMER CO, 7.5 MINUTE SERIES (TOPOGRAPHIC) NW /4 PORT COLLINS 15- QUADRANCLE 105"'07'30' 40"'45' IJ '. - '81 "~r- ,3 J~ ~:~8~_t'\OO(JOOH':d~~ ~89_~ ;11 ! " t t , I :;;',4i' t " I ""o~ J, ~0". 1 '1: "5'20 !.~ " ," .:;' #Q:-tr o *. .? !1J <1 oJ . 15';90 g ~ 29 ~s.nJ $-i:'50 .' 5370+_ "'h',J\ l g . . 0>;,"0 N5.?J.9 : " , 32 . ~ ~ ~ . , . " ~ , " ~ ~ , I , 56 '~ . q , o " ~ " I ~5 " >~ ,,~ ,'\r,ti6.?"" ~ , I 11 ,0 r .,!J '%0 " 'f,/' c::, ~\ 8 ?J , ^ -' c ,. ~ . .~ . "', '0 \ JO~ x,' ',~;;;4.. ~;.~ ~,''- j \\ l <\ '".to- "'--"-"'-- , , .'f ~ ~ ~ o ~ t"~. /. 1.\. " '? .(. e 'I "" '-~ \ , '~\ ''1;\. \\,5185)\ ,,",,,,1 " \ II Ii . I I II 1/ 'f! n. 'il "', I 20 '0 i I '\ + , " '. " '. ,', ~ '" ~. J_~ "~ SIBi! I . \ : ,[ ;, ~\H" f ..__.~_~~~'-l.....__ +~_ I o~ Ol"'i I I" f :.\~ !i" I .~! ,S08~r :~ < .11 "1 '. j ~. <:f,' - ~l' \ ~ ~ SO~2 o~ f" ,,0 29 ~ 2 ~- POU~Rf:': . 'F Ltport" '. g... I 487000"'E. Ca~he LlI.I'Qu,Il't, AREA &10" '_... AthletiC r _---.;:.,_ fiehol\..1 ",',. '. ....'~.._ . . . '...rH.,o..-o.E()I,,f.;iC"'~ ''''';''0''. w..."..,..,;.TON " .: EXPLANATION Flood boundaries were estimated from: Regional Rtage.frequency relationloi. ~"4~\ b"~~ ." 0 ,q,v 4510 , " .,.,0 4~09 ~ 21';' 510000 '" " ..:s : fEE] " r: ~ " ~ " " .' . f~ IJ:' - , ~ , " . ~ 5 ~ '", ~ 28 ( , 4~07 1 - 42"30' 52"" .~06 T, 9 N 4~05 T. 8 N ~ ~ o 4 " o~ ", "'- ~- -. ~~ ~~ "'. ~ "03 '" "/,9 '~02 40' . 16 4S01 .- " " . jl -~...,.:..;~.. ~ ~ . M 21 \ i '499 4t98QOOm,N. 28 , ~ DITCH ~ ~ - o " . . o , . .... 40.37'30' 105.07'30' LAPORTE. COLO, NW/4 FORT COLLINS l!i' QUADRANGLE N40375 m0507 51.7 5 Base by U.S. Geological Survey 1962 f} - "'" 0.., '. ; :tt~00 ...... << U'<".....-z...>S> 7255 ~ I I I ( I I -! I I I I I I I