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<br />4242 <br /> <br />~, <br /> <br />co <br />co <br />o <br />o <br />co <br /> <br />o <br />co <br />o <br />ru <br />co <br /> <br />Lx <br /> <br />r-----x__x <br />x ~ <br /> <br />x-J /~\ <br />x0 <br />\ \'--?\ <br />~/ <br /> <br />co <br />co <br />co <br />-q- <br />(:) <br /> <br /> co <br /> co <br /> co <br /> \1) <br /> S <br /> w <br />+ +N 22000 <br /> <br /> <br />w <br /> <br />+ N 22000 <br />~ <br /> <br />w <br /> <br />,v/+ <br />, /", <br />" /" / <br />~", <br />/dL// ---, \ <br /> <br />\ <br /> <br />22000 <br /> <br />+ <br /> <br />w <br /> <br />+ N 22000 <br /> <br />?0~\) <br /> <br />\ <br /> <br />J!! ~ <br />~~ <br /> <br />~ <br />~-x <br />. --x <br /> <br />TEA Statian 76+01 = SCS Station 1019+00 <br /> <br />---- <br /> <br />x <br /> <br />x <br /> <br />x- <br /> <br />8 <br /> <br />-x <br /> <br />, / <br />""- . . . <br />----- <br /> <br />Q <br />, <br /> <br /> <br />(~ <br />j+ <br /> <br />.!( <br /> <br />~x~ <br /> <br />q <br />w <br />< <br />o <br />q <br />< <br /><[ <br />Q:) <br />'1.' <br /> <br />Highway 36 bridge details from field <br />su rvey <br />Bridge width = 29.0' <br />Deck elevation = 5360.3 <br />Low chord elevation = 5348.90 <br /> <br />Note: Area downstream of Hwy. 36 and Hwy. 36 ~ ~ <br />culvert have changed; changes not reflected <br />in mapping or madel (per 1 \ 17\97 meeting <br />w/ Jahn Liou). <br /> <br />Q <br /> <br />x <br /> <br />r <br /> <br /> <br />?, 1\ ,0 <br /><::j'3 <br />"j. <br /> <br />w <br /> <br />+ N 20000 <br /> <br />c~ <br /> <br />x <br /> <br />) <br /> <br />TEA data and mapping is based an 1988/~3 NAVD. <br />Conversian ta FEMA datum on Rock Creek IS FEMA <br />Rock Creek elevatian + 3.75 = 1988/93 NAVD. <br /> <br />Tea Sectian 7601 is at a similar location to SCS <br /> <br />section 134. <br /> <br />\ <br /> <br />x <br /> <br />/ <br /> <br />~ <br /> <br />oRAfT ~ <br /> <br />x <br /> <br />x <br /> <br />x~ <br /> <br />1 <br /> <br />~ <br /> <br />Highway 36 (2.7 ft. high) cancrete barrier (s~rveyed in <br /> <br />field) added to cross section taken fram aenal , t . <br />photography and used as control in HEC-2. Low pOln In <br /> <br />barrier = 5360.3 LEG END <br /> <br />~ <br /> <br />-'--------. <br /> <br />-- - -- <br /> <br />- '. . - . . . ------.... . . ----- <br /> <br />+ <br /> <br />+ <br /> <br /> <br /> <br />100YR SPILL FLOODING <br />FLOW NOT CONNECTED <br />TO MAIN CHANNEL <br />PROFILE <br /> <br />HEC-2 CROSS SECTION <br />(TIED TO TEA STATIONING) <br /> <br />TEA STATIONING <br />ALONG CENTERLINE <br />OF CREEK <br /> <br />500 YEAR FLOOD <br />BOUNDARY LINE <br /> <br />SCS STATIONING <br />ALONG CENTERLINE <br />OF CREEK <br /> <br />co <br />co <br />C) <br />ru <br />C) <br />~ <br /> <br />~~bl~~-fib~U~~ID~~~IN~6c~0~RJ~koc~~N~UCTURAL <br /> <br />. d b CH2MHiII from photagraphs tqken <br />Map base on 1.=200: topographic dmag,PII~%g~~~at~ginlering Assa<;iates. Inc. per drawmgs by <br />December. 199t4. EAdJust~en~~c m~a; sfructures to De built by Apnl, 1997. <br />McLaughlin Wa er ngmee. .. d' USGS Be ch Mark 1-ROB <br />Elevations are baseq an. a c1a~edS level.laaPln~eginE7~~%ti~~~ t~s~Jl g;: the 1988/1993 National <br />~~~?calbnaru"~~ EB86~~T~a"t~s agre ~6d~X~Jl' State Plane 1988. <br /> <br />1 00 YEAR FLOOD <br />BOUNDARY LINES <br /> <br />BASE FLOOD <br />ELEVATION LINE <br /> <br />/ <br /> <br />/ ?0~\) <br /> <br />CREEK CENTERLINE <br /> <br />500 YEAR FLOOD <br />BOUNDARY LINE <br /> <br />100 YEAR FLOODWAY <br />BOUNDARY LINE <br /> <br />o <br />o <br />Co <br /> <br />100 YEAR FLOODWAY <br /> <br />-q- <br />C) <br /> <br />HORIZONTAL SURVEY <br />BENCHMARK <br /> <br />~ TAGGART <br />f~.~ ENGINEERING ASSOCIATES,INC. <br />...,- 2480 ". 26TH ~VE. SUlT[ }40 8 <br />Denver, Colorado &3211 <br />{J03}4~-J600fAX4~-9929 <br /> <br />DRAWN BY: <br />CHECKED BY: <br /> <br />DR <br />WCT <br /> <br />FLOOD INSURANCE STUDY WORK MAP <br />ROCK CREEK <br /> <br />BENCHMARK DESCRIPTIONS <br />NU~E ELEVATION NGVD <br />100/39A 5363.37 1988/93 NAVD OR 5360.11 1929 <br /> <br />100/39B 5350.83 1988/93 NAVD OR 5347.57 1929 NGVD <br /> <br />DESCRIPTION CORNER POST IN THE 'WEST R/'W OF THE BOULDER TURNPIKE, 1/4 <br />GOD NAIL IN FENCE <br />MILE NORTH OF THE ROCK CREEK C~~~~~GDF THE 'WESTERLY HEAD 'WALL OF THE <br />g~~~f~f F8~A~~C~NC~~~KS~~~~ THE BOULDER TURNPIKE <br /> <br />~ <br /> <br />200 0 200 <br />~ I <br /> <br />" <br />Scale 1 <br />CONTOUR INTERVAL 2 FT <br /> <br />I <br />200 ft <br /> <br />600 SHEET NO. <br /> <br />I <br /> <br />SHEET LAYOUT <br /> <br />1 <br /> <br />DATE: <br />TEA PROJ. NO. 40 <br /> <br />12 27 96 <br /> <br />5MP' ~8J~J08\NIV~\OVJV\~J08\ V~j~Ov\ :~ <br />