|
<br />118scrlptlon of
<br />Subreech or Loelltlon
<br />
<br />YOI"'k Street to Sllnd Creek
<br />Chicago R.I.R.R. bridge
<br />Check d"",
<br />
<br />Check d...
<br />Checkd....
<br />
<br />Sot..-Ilne cl'"O$slng
<br />Sotwage out I et
<br />Sand ~eek
<br />
<br />Slllld Creak to C-22'
<br />1-270 bridge
<br />
<br />1-16 bridge
<br />Clelll'" Q-eelr.
<br />::;-22'
<br />
<br />C-22' t-o E. IlRt-h Avenue
<br />
<br />Nlv."..o-eelr.
<br />Lhlon Pacific R.Il:. bridge
<br />
<br />lIater'-sUfllllv..,lls
<br />
<br />88th Street
<br />
<br />Ct.eckd..
<br />
<br />River
<br />Stat-Ionlng
<br />
<br />1015
<br />1015
<br />
<br />101") to 1000
<br />'91
<br />'96
<br />996 t-<.> 980
<br />,,.
<br />'"
<br />'"
<br />
<br />'"
<br />9~ -to 910
<br />91'
<br />'"
<br />''''
<br />
<br />,."
<br />890 t-o 180
<br />
<br />'"
<br />'"
<br />'"
<br />850 t-o 820
<br />
<br />'"'
<br />
<br />,eo
<br />
<br />E. 88th Avenue to 10.th Str_-t
<br />1ee t-o 630
<br />
<br />GrllVel pIt I like
<br />McKayFlolld
<br />FultonDlv."..slond....
<br />
<br />EastI04'thAvef\ue
<br />
<br />no
<br />661
<br />."
<br />
<br />60'
<br />
<br />EMt- 100th Avenue t-o Henderson ROIId
<br />Q--WlgeHllll Cr....k 'j.85
<br />lM$tecl..-p '515
<br />&-lllltn.".. Ditch c1lverslon ~8
<br />
<br />Iiender$OnRood
<br />
<br />Henderson Road to Brl9hton 0 ITch
<br />
<br />')05 -to no
<br />
<br />'"
<br />
<br />""
<br />310 to 1.2
<br />
<br />GrllVel pltleke
<br />
<br />Redlo-to"""'$
<br />
<br />'"
<br />300 t-o 1.0
<br />
<br />220
<br />
<br />15'
<br />
<br />'"
<br />Brighton DItch c1lv..slon 140
<br />
<br />Bright-on Dlt-ch t-o Bosellne Roed
<br />1'0 to 80
<br />
<br />1'0 'toO
<br />
<br />E. HiOth Av,,"ue (Colorado 1) '58
<br />McCann 01 tch }O
<br />Bllsellne Road 0
<br />Field studies b...:
<br />
<br />_... llley. P.E.. Prlnclpel In...est-lga1or
<br />!l;.R. ....Ig,.,. P.E.
<br />CUrt- Olandr.., P.E.
<br />Rlckl~eau
<br />Roblll"'tSllllt-h
<br />Rlehard S.lth
<br />
<br />TABLE '1'111-2
<br />Hbnt-Inuedl
<br />
<br />Conpl!l'" I $On of 1963 ...s.. 1983
<br />Eros.lon or A9'Tadat-Ion
<br />
<br />No t""11089 ehllnge
<br />tt>t""l.egchllnge
<br />
<br />AQgrlldlltlon of 2'
<br />
<br />Thlll'""'ll2' I~ then 1963
<br />
<br />DescrIption or I'....entory of Engl.-rlng feat-ure
<br />
<br />VIII-?
<br />
<br />o Closel",-spIIced brIdge s,""porh; debris coll.::tors
<br />o 6" "Igh s'-T pile and rubble dlllll; debris plied agelnst
<br />UJlstre... fece of d...
<br />o Flet slope; slo. pooliS
<br />o .' concre"" rubble check d_
<br />O :5'iS~pl1echeckdlllll
<br />o Mild iSlape; undy bottolll
<br />o ~or cmulng under coniStructlon 10/83
<br />o _tro-.... dliStrlctoutfllll onrlglrt b..k
<br />o Trlbut-..... fr~ the _n; rive- wat... qUllllty degrllded
<br />
<br />Oxford to Bates
<br />Between Oxford and the confluence
<br />about 3 to 4 feet,
<br />essentially the same
<br />depositional zone.
<br />
<br />with Bear Creek, bed erosion
<br />but downstream of Bear Creek, to Bates, the
<br />in 1983 as existed in 1963. This area tends to
<br />
<br />has aver aged
<br />river bed i s
<br />
<br />be a
<br />
<br />RellCh8; S..dCr..t-oS.iSellneRoad
<br />
<br />Thlll.-g 3' lower ttlen 19M
<br />
<br />Up t-o" 10.... than 1%3
<br />
<br />No thlllweg chonge
<br />
<br />Aggr.adetlon of 2'
<br />
<br />Aggr.adlltlon of 2'
<br />
<br />No t!llllweg change
<br />
<br />I\ggrlldetlon of 1'-2'
<br />No t-hlll_g """"ge
<br />Thlll..eg 4' 10.... th.. 1963
<br />
<br />Thlll....g 2' 10.... than 1963
<br />
<br />"':>thal-.egc"llnge
<br />N:> thalweg chllnge
<br />Aggradlltlon ot 3' ~stre"" of dllll
<br />
<br />"bthal.egchllnge
<br />
<br />ftl thlll..eg chltl'lQe
<br />
<br />Thlllweg up to.' lo~ than 1963
<br />
<br />Thel..eg l4' 1'0.' lo.er than 1963
<br />
<br />8""k erosion OWOlerd 10 one to....-I
<br />
<br />No t!llll..,g change
<br />
<br />Thlll.-g l4' to" I~ tt.n 1963
<br />
<br />T"alweg I4l to 4' 10.... than 196:5
<br />
<br />Th.l~ 2' 10.... t-h.. 1963
<br />
<br />Thel_g l' lower ttI!IfI 196:5
<br />
<br />o Wide channel; '-Iane bridge iStructure
<br />o WIde channel; sloping b..u; cobble bot1'~
<br />o .-Iene bridge; peel_trlen brIdge
<br />o Trlbuhry frCllthe weiSt
<br />o 2-llllle high...... bridge; pInk rock rlprap placed on ..,st
<br />b..... for eroiSlon protection
<br />
<br />Bates to Co If ax
<br />The river bed
<br />
<br />in 1983 from Bates to a point 1/2 mile upstream of Florida
<br />the same elevation as in 1963. However, at Evans
<br />eroded approximately 3 feet
<br />of a drop about 3/4 mile upstream of Florida Avenue.
<br />Florida Avenue drop structure, the river bed
<br />
<br />o OollCrete r"*'ble Jetties on _iS1' bllllk for lIroslon 1I"0tec1'Ion
<br />o Oonere'h3 s.::tlons rand~ly d~pll!d 1I10ng b...,k.5 for bank
<br />protectIon; ..Ide ehannel, 10" bllllU: lerge SIInd lInd gro...el
<br />br.
<br />o Trlbutery frOll the _st
<br />GrllYel operetlo"iS on weiSt b..k
<br />o On rlgllt blink; Tlo"nton .lIter iSupply facll It-Ies
<br />o Olke IIlong rIght b...,k; concrete r"*'ble dllllped Inter'-..I1"tentl...
<br />II10ng b..kiS; grllVel ",Inlrog operatIons on left b!ll'lk
<br />o HIgh...", bridge, concr"te rubble check dl!lll do.nstr".... ot
<br />bridge .Ith .' drop
<br />
<br />Avenue is
<br />Avenue it
<br />
<br />approximately at
<br />is estimated that the river bed has
<br />
<br />due to the removal
<br />From this point, to the present
<br />has aggr aded about 2 feet.
<br />
<br />o Send and grllVel blll'"s; e..-th dikes On the outsIde of rl......
<br />benks; concrete llnd asphlllt dllllped on bllllks for erosion
<br />pro11:N;:tlon. Thick grllVel 111".,.- e<posed b... rive-; grllVel
<br />_Inlng operll1'lon on both iSldes
<br />o Breached grllYel pit IlIke - left b..k
<br />o Sot.llge outlet 100 "'lIrdiS dOlOftstre"" of brIdge
<br />o Concrete dl......slon dllm; Fulton Ir,.lglltlon dltc"
<br />begins on rIght bllllk. Conerete r,,*,ble In channel below dllA
<br />o Busy hlgh..y b,.ldge; right bllllk do.niStre"" of bridge covered
<br />.I1'h packed-In-place lI5phlllt-
<br />
<br />At Mississippi Avenue the river bed has eroded
<br />Mississippi to Colfax Avenue the river bed is
<br />as it was in 1963 due to a series of dams and
<br />
<br />approximately 4 feet. From
<br />approximately the same in 1983
<br />drop structures.
<br />
<br />Co lfax to
<br />The river
<br />
<br />Cherry Creek
<br />bed in this reach
<br />Dam at 15th
<br />
<br />is contro 11 ed
<br />Therefore,
<br />
<br />by the Farmers and Gardner Ditch
<br />the river bed is approximately the
<br />
<br />o T,.lbutaryfr~tllawest-.
<br />o Solid .lIiSte dgnped CNf<r left b..k
<br />o 10'. 2 iSt-ep concrete dl......slon d""" Branm... Ditch beglniS on
<br />leftb..k
<br />"'lid slope; ",.11 riffles IInd pools, bank erosion on both
<br />banh. Concrete r,,*,ble us.ed for protection. G-lIvel
<br />ope-atloniS on bot-h b..kiS
<br />
<br />Diversion
<br />
<br />Street.
<br />same in 1983 as in 1963.
<br />
<br />o Major grllYel oper-etloniS on !MiSt- iSlde
<br />o Ct..."el ..ldeniS; 3-""''' cobbles In Channel; bank erosion
<br />IIpplll'"ent; lerge trees end debris deposltBd d....-Ing "Ig" flow
<br />o &-lIllChed grllVe' pit-
<br />o Benk .,..oiSlon on outiSld.. blink lit rl..... bendiS; ca<>crete,
<br />llSphelt.llndsolld.lliStedllllpedCNerbllnks for.,...oslon
<br />1I"0tectlon. 8enl<s 4'-6' high.
<br />o :\ red 10 to....5. one on e"iS1' bank; gu... .lres "",t-end across
<br />tlla rive-. Cottonwood tr_s on both banks
<br />o Concrete rubble Jet-ties protrudIng fr... e"iSt blink for erosion
<br />protectIon; sediment ..I th .Illows gro.lng oo.nstr.."" lit eac"
<br />JetT...
<br />o SolId .."st.. dl,lllp on left- b....
<br />o .' concrete d... .Ith wood", !S'top legiS. CtIIInnel liS
<br />cons1rlctll!d 10 lloppr~hsa1'ely 100'. BrIghton Ditch begins on
<br />I.ftb..k
<br />
<br />Cherry Creek to Franklin
<br />Erosion has lowered the river bed from Cherry Creek to Franklin approxi-
<br />mately 1 to 2 feet from 1963 to 1983, except where bedrock is exposed in the
<br />river bottom.
<br />
<br />o 6' dl-+-' Cl)O'lCre"" pipe -'CtloniS d_ped elong .lnt b..k
<br />for erosion prot-ect-Ion
<br />o Wide ch..nel; cobble b....iS on IniSlde corner of rher bendiS;
<br />Dmlk ""OiSlon on outiSlde b..k; ",an... tr_iS hll...e fllllen Inro
<br />rher
<br />o No direct dhllrslon frOll river
<br />
<br />Franklin to Sand Creek
<br />The river bed has essentially remained unchanged in this reach except in the
<br />vicinity of Sand Creek where bed downcutting has amounted to approximately 4
<br />feet, probably as a result of eroding out deposition from Sand Creek.
<br />
<br />o End of project
<br />
|