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<br />V II 1-6
<br />
<br />~scr-Iptlonof
<br />Subr"llC~ or LOClltlon
<br />
<br />C~lltll..ld 0_ to (-470
<br />("~gl"g ~t~tlnn
<br />Controt _Ir
<br />Drop strlieture
<br />Nlltur III C~lIflnel
<br />C-47Cb<"ldge
<br />
<br />C-470 to Cooley Brldge
<br />KenCllryl se..er
<br />
<br />Exposed cobble
<br />flrellCl>e<lgrllvel pit
<br />
<br />'oIoode<lbllflks
<br />Hlghv",.-tlclll bllOk
<br />COncr..te.....lr
<br />Temporary brIdge
<br />
<br />Cooley Bridge to Colu.ml....
<br />OlldCIllrkgulch
<br />Shllle outcrop
<br />COIo.....blne 0"",
<br />
<br />Columbln.. to Bo.les Ave.
<br />Lee Gulch
<br />Dutcho-..ek
<br />Sh~le outcrop
<br />Ste.,1 shaetpllecheckdem
<br />
<br />eo.les 'we-><>,,:
<br />
<br />Bo.l..s A-.enue to 8elle"'I... A.....n.....
<br />O"estll"e "'ve'we
<br />S~~le outcrop
<br />
<br />flellevl"" Avenue
<br />
<br />Bel 1 e... Ie.. "'venue to UnIon "'venue
<br />
<br />Union "v8nuedM1
<br />
<br />Union "'venue to Oxlord A...en""
<br />
<br />R1ver
<br />Stationing
<br />
<br />1DO
<br />2120
<br />"'00
<br />2080 to 2060
<br />'060
<br />
<br />'060
<br />2060 to 2020
<br />
<br />2060 to 2020
<br />2020
<br />2020
<br />
<br />l020toLlJOO
<br />2020 to 2000
<br />'000
<br />""'"
<br />
<br />'000
<br />""
<br />""
<br />
<br />1'142
<br />193'
<br />1930 to 1~1O
<br />,."
<br />
<br />188~
<br />
<br />16">8
<br />1 B~~
<br />18<;0 to 18.40
<br />
<br />1833
<br />
<br />1820
<br />
<br />"'"
<br />
<br />Concrete c~p rubbt", dM1 1751
<br />0><:10rd ".....nue 1739
<br />
<br />1790-1775
<br />
<br />Ox lord "'venue to H"'"Pden Ave"ue
<br />E"yiewooo90iicourse
<br />a....... c.-....k con II uence
<br />
<br />HM1pde" "venue
<br />
<br />H~..:,~ A"",,,,,.. ta "~"e~
<br />
<br />""..II'Iu"P!",,..
<br />
<br />.I.....trrnuth ~v""'......
<br />
<br />Bo>drnck,)utcrop
<br />
<br />Shllleoutcrop
<br />Hlltes"......,,,,,
<br />
<br />TABLE Vl11-2
<br />INVENTCRY (F ENGINEERING FEAT~ES
<br />
<br />CQIIlPer I $On of 1963'15.1983
<br />ErMlo" or Aggradation
<br />
<br />Reach I; C!latfleld R..servolr to ColUlllbln..
<br />
<br />TIllll....g3ft.lo.ertl"llnl963
<br />
<br />Erosion of 6' ,"11"10",,, In subt"each
<br />Eroslo" downstrelllll of sewer
<br />D~ Size of gravel boH"",
<br />3". 1IIl!D<. cobble. 6~
<br />Len bank ....-oslon
<br />Right bllflk .....oslon
<br />B.IInk .....oslon
<br />
<br />Blink .....Oslon
<br />Bank eroslo"
<br />
<br />ThlllW&Q 2' lower t~an 1963
<br />
<br />Aggradatlon of 2' upstre_ of d,,"
<br />~"d eroslo" of 4' do""str..am
<br />
<br />O..scrlptlon or In.....ntory of Engl_lng Feature
<br />
<br />Begin Master Plan study reach .lt~ .tlllclal ch.....nel
<br />(') ....._...Ing poInt for Chatfield r..I.._..
<br />o 1 foot eonc:rete ....Ir control lor 9aglng station
<br />o Ch..""...1 cobbled. Bank wlllo. and cottonwoods
<br />
<br />~scrlptlon 01
<br />SubreachorLocatlOl'l
<br />
<br />Rlv......
<br />StationIng
<br />
<br />o C--..10 bridge. T..o 2 lane bridges
<br />
<br />Channel bed and banks eroded. Rlflles and pools.
<br />o Ken !Aryl Olstrlet se.....r crossl'lg ......oded and "'posed 3 to 4
<br />feet due to erosion
<br />o Active ....oslon ...a. Tree debrIs In river channel
<br />o WIllow, Russian Olive. cottonwoods on banks
<br />o Topsoil ranges. frOll'l6" to 24". E"posed cable, rIght bank
<br />o Rl...er breach of berm. River lIo.s Into pIt broken cone rete
<br />rlprap. Power. I"" R.O.W.. right bank
<br />o Cottonwooas both oankS
<br />o Vertical right bank 10' ~Igh
<br />o Old diversion dlllll, about IS" drop, boatllble
<br />
<br />Sat..s"......nu..toW.Alll/IIe'daA.....n......
<br />P\lbll<; Servlc.. Diversion Olllll 162~
<br />
<br />FlorldaA...enuedsn
<br />
<br />162~ to 1 ~31
<br />1537
<br />
<br />Pedestrian brIdge
<br />
<br />1515
<br />
<br />"'Isslsslppl Avenue
<br />Hlgh.ay Dep.....tolant dp
<br />
<br />"(>0
<br />""'
<br />1470 to 1445
<br />
<br />"I....edll"...enue
<br />
<br />IU2
<br />
<br />Well cd:Ibled stresnbed.lthrlfflesand pools
<br />o Right bank trlbutlry ..lth se,:ll-.t lolld
<br />Denver FO""lltlo" banks
<br />o Dam bedly damaged. Orop 01 lIbout 7'. Wat...... flo.lng t~rough
<br />dS'l and undar- ........r crossing
<br />
<br />TABLE VIII-1
<br />(Continued)
<br />
<br />COIIp......l50n01 1963...s. 1983
<br />Erosion or "ggradatlon
<br />
<br />Description or !n...entory 01 Engineering Feature
<br />
<br />RellC~ 4; Bates "...enue to Colh" "v...nue
<br />
<br />Thal.....gl. loooer then 1963
<br />
<br />AggradatIon of 4' upstre.. of d""
<br />"'=? thalweg change at base of dllll
<br />No thal..eg change
<br />
<br />Thal"..g1'lo~thanl963
<br />Thlll....g 2' lower than 1963
<br />A.ggradatlonof 1-2f_t
<br />
<br />Aggradlltlon 01 2' upstre"'" of dlllOl
<br />No thal....g c~a"ge downstream of dam
<br />
<br />WestAl_dllAvenuet08th"v..nue
<br />" weIr, smllll riffles 1415 "' thal....g dlange
<br />3rd"venued"'" 1370 A.ggrlldatlon of " upstream of ,~
<br />Sth"venuebrldge 1)<;<; A.ggradatlonof "
<br />Pedestrl11n br Idge 1557
<br />8th A.....nue to Colfll"
<br />Weir gulch 1349 A.ggradatlon of "
<br />13th Street bridge 1328 "ggradlltlonof "
<br />Public s..r...lce fllbrl-oem 131S
<br />Lakewoodgulch 1319 "-Qgradlltlonol "
<br />CoI fll" "venue 1314 IIggradatlonof "
<br />
<br />ReaCh 1; Columbine to Oxford "...enue
<br />
<br />Th~tweg 2' 10__ than 1963
<br />
<br />~ th~l.eg c~8nge
<br />
<br />~ thal.egCh8nge
<br />
<br />Nothatwegcha"ge
<br />
<br />Ibthlllweychange
<br />Thalo<eg2' Io.er than 1963
<br />
<br />o Trlout8ryfr"",theellst
<br />o L"ftb"",ktrlbutar.,., IrrigatIon draInage
<br />Solid shill... bottcon, steep S~lIle b"",ks
<br />o Contl"uous sheet piling conpletely llCross rl...er, I'
<br />abO\le lowwllt..r sur lace
<br />o !Tav..1 bers. deposition llpp....-....,t
<br />
<br />o Eart~ dike along ...st blink 01 rlv....-
<br />o Sol 10 shale c~ann..1 botton
<br />o Earth dike lllong ellst rlv..... bank, cone rete slllbs plllCed on
<br />b~'
<br />o Concrete sewer I I.... encllsement crossing north of bridge
<br />concrete ","cll_ant causes a 1 foot drop. Sone ..lit..... goes
<br />urld",," encasement
<br />
<br />Colfa"A...enuetoCl'>erryCreek
<br />1-25 bridge 1302
<br />2' sheetpllecheckdMl 1298
<br />
<br />1298 to 1260
<br />Speer Boulev!lrd 1158
<br />Confluence Park drop
<br />A ooatchollnnel 1255
<br />Char-ryc.-eek 1253
<br />
<br />o 36" IIbnncloned cor>crete se....rllne crosses rlv...... 1l.blll1dO<led
<br />mnnhole I" the c.....ter of t~e c~ann...
<br />o 12' ......-tlcal concrete dl...erslon dlllll. E"posed solid bedrock
<br />at the base of dsn
<br />
<br />Mllny 1'-3' diameter rocks deposited In chann..l. Bedrock
<br />e><posed Inch....."...1
<br />o 6' high dllrl'l, smooth, curved slope on d""
<br />Very hIgh. steep rl........ banks. Concrete frllQ"'.....ts. llsphalt.
<br />"ndc.,.-bodlesuslldasrlprllp, Ols.cl'>llrge fransanlt......,.
<br />I,,"dflll upstream: "lifer '1"111 It.,. det....-Iorates
<br />
<br />Che..-ry Creek to 20t~ Street
<br />16tl'>Streetvlllduct
<br />Rock go!ltllon jetties
<br />19th Street to 2Ot~ Street
<br />
<br />124<;
<br />1237
<br />1231 to 1225
<br />
<br />1225to1215
<br />
<br />20t~ Street to Frllnklln Street
<br />COloro!ldo Souther" R.R.
<br />
<br />1214
<br />1214 to 1140
<br />
<br />Reacl'> 3; O><ford """nile to 8l1tes A...enue
<br />
<br />II), '0 "00 Illlll_g)' to...r thlln "'"
<br /> 1710 "'ggrMatlon of "
<br /> 16B5 T~alweg 4' 10....- t~an ,,.,
<br /> 1Ml Thlll...g3' ,- U,.. "'"
<br /> 16~~
<br /> "" "' tholll.egchollnge
<br /> 1635 "' thalweg chllnge
<br /> 163U
<br />
<br />38th "venue
<br />
<br />113')
<br />1130 to 1010
<br />1070
<br />
<br />River v..loclty decr..ase,,: ...erth dike lllong rIght blink
<br />o a..!lr Creek flows Iron the ....st. !Tevel b......s oIlnd deposition
<br />llppar......t: dredglngoperolltlons;channelwldeos
<br />o RI...er slope l"creases, velocity lncrells",s
<br />
<br />Fr lIflk I In Street
<br />
<br />Rock In channel lorms small riffles. "RI...er Channelized
<br />with "teep banks. o..""hllnglng tra..s on both hankS
<br />Liftl..r:.-.,.Crael<trlbul....-Y franlhe""SI; s,""lmentdeposlted
<br />In Sout~ Pllltt.. River cha"nel
<br />Solid bedrock protrudes In channel batt"",. Lo.-flo. ch...mel
<br />eroded through rock
<br />o Shale bedrock In ch,,"nel forms !"oIIlltll rllfles
<br />
<br />frank 11n Street to 'York
<br />DARGWR.R.I'>r1<1g..
<br />8udlngf"Qn 0_
<br />
<br />106"1
<br />"'"
<br />
<br />Street
<br />
<br />Cheek d_
<br />
<br />1059
<br />105<1 t" 102">
<br />1020
<br />
<br />"'or~ Street
<br />
<br />o 5' rubbl... d_; concrete WIllI ear... EnglatoOOd-Llttlftton
<br />se.ll9" discharge on rIght b....k
<br />o RIver channellzacl .Uh steep blinks
<br />o l' rock nmbl... d_; pump Inteke on ,"",st bank
<br />
<br />o 2' double sheet pile check dllllllllled .Ith concr..te: bollt
<br />chute thrOl>9h cent.,,-
<br />
<br />2' s'-1" pll., and rock rubble dlllll;
<br />o CollllpSed concrete cap glib Ion dam:
<br />o DeposItIon epperent; gravel bers.
<br />tr_s on bot~ blinks
<br />
<br />boat chute through cent."..
<br />exposed s.heet pile cor..
<br />steep bnnks; CI'tIerhllnglng
<br />
<br />o 3' sheet pi I.. - rubble check dlllll ..Ith boat cl'>vl'e throug~
<br />~....
<br />
<br />o resistant channal
<br />o 1-25 concr..1'e retelnlng .llll along ellst bank
<br />o 7' concrete d"",: major ..hlte..ater bypllss chute
<br />o Low rlv..... ...eloclty; back.llter IrOfll PUblic Ser...lce fabrl-d.....
<br />
<br />o Trlbut....ylrorot........st
<br />
<br />o Inflatabla S' d"" for Public Ser...lce lntllke; boat chut...
<br />plllCedond_
<br />o Tr lbut....-.,. In~ the ....st
<br />o Nltw pr.....stressed concrete ...Iaduct un<!__ constructIon
<br />
<br />Reach 5; Colfllx "...enu.. to Ch....r.,. Cr.......
<br />
<br />~ thlll.agchollng..
<br />
<br />Thalweg 1'-1' 10""" tl'>lln 1963
<br />TIIlll""92' lower than 1963
<br />
<br />~ thal..agchange
<br />
<br />o High. st..el ll'"Ch 8-llIne bridge
<br />o Sheet pile drop structure: bollt cl'>ute constructed
<br />~st bllflk
<br />
<br />along
<br />
<br />o HIghconcr..tevlllductllboverlver
<br />
<br />o l' concrete ...Irs and pools alo"9 rIght bank
<br />o Tr Ibut....V frOll the southellst
<br />
<br />R..adl6; C~erry Creel< toFranklln Street
<br />
<br />Nothlll....gcl'lllng...
<br />/t:>tolll"E9chllng...
<br />No thlll....g chllnge
<br />
<br />T~af .eg J' 10....... th..... 1963
<br />
<br />Tholll....g 3' lower th"" 1%3
<br />H:l thlllweg c~llnge
<br />
<br />It:> thel.egc~ll~
<br />Nothel...gchllf>g...
<br />Th81weg l' 10"""- than 1963
<br />
<br />o l' drop under bridge 'h:> consolldll"" 10..110.
<br />Gllblon boat In:! control j..ttles _t..r>dlrg frCfll both banks
<br />Rock g~lon across c.....ter 01 channel. Shale outcrop 1"
<br />C~lIflner
<br />o FIoulders plllCed In chllflnel for boating ImprO\lllnlent
<br />
<br />o Ctlan"ell;ted ll'"ell; SIIndy river bed
<br />o "'any bridge.. ...Islble Iran this point
<br />o "'lid slope; sandy boHoon; channelized
<br />o Shal" outcrop In channel; 51111111 riffles
<br />o "'lid slope; chllnnellz..d
<br />oVery 10wbrld!Jl!
<br />
<br />Thal_g l' lower than 1<l6~
<br />
<br />Reach 7; Franklin Str_t to Sand Creel<
<br />
<br />Ii:Jthalwegchange
<br />No th"l.....q c~ange
<br />'b thlllweg C~ll'l9l' lIbove dMl
<br />2' ......oslon below dsoo
<br />
<br />Closel.,. splOcfl(1brldge <;upporfs. Oebrl..colloctors
<br />o 10' concret.. dl...erslon dllm; eur! lr>gto'1 OItcl'> begins on ellst
<br />I'>....k; tlllntar gilt., on _d b/loll~
<br />o 2' sheet pi Ie choock dsn
<br />o Stoopb/lollks;o.erhanglngfr"",s
<br />o Wood aM rubble dllnl upst-re"", of York St. Total drop 6 '-e'
<br />
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