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<br />GENERAL NOTES
<br />DESIGN NQ;=`, S
<br />SPECIFICATIONS: A.A.S.H.C. doted 1953 with subsequent mod-
<br />ifications cnd Br%dg€ Department Supplement dated .'953.
<br />LOADS: Live Load one H2O-S16-44 truck with 30% impact for
<br />all cover depths. Negle-ct live Iood when on single spans cover
<br />%s more fhon e'and exceeds soon or on multiple spans cover
<br />exceeds distance between faces of exterior walls Culverts
<br />of grade treated as bridge, with wheel Io(7d on /;?verf slab
<br />distributed over 7V' tranar er Elr and veadth of culvert
<br />longifudi,M)'. Live load d vrbuled ibru fill as fallows:-
<br />Tronsverse eoreadzL2t1.6F; longitud%nal soreoa`=Z5fl.5F.
<br />Earth load of 120lbs. per cu. If and an equlvclont fluid
<br />pressure of 36lbs per Cu f` (both reduced 30% for balanced
<br />design) and modified for bedding and bockfill conditions.
<br />UNIT STRESSES.' fa=20,Of10 psi; fc=i;000psi; n=IO; u=300p51;
<br />v= 90 psl. Reirforceorent to be round deformed bars. Embed -
<br />men% is /'% Dio, cfeor,excn_pf as noted hooks Sholl
<br />conform to tefanual of Stondorc Practice, A.C./. 8gcking for
<br />hooks is a diameters. Bar sp,'ices tube 20 diometers,Lnlessnoterd
<br />Deformations shall conform tc A.S.TM. A-305-49. Distribution
<br />d " bars; Cover ''0"to span lengti,, fop slob I '� ,mar. 50JO.
<br />Cover 'O' "c span leigth, botton s/ab= v s=, min. 25 %
<br />Cover exceeding span length, top and bo+tom slats= 25 5o.
<br />ICN No TES
<br />SPECIFICATIONS.' 6 tondard Specifi,ections, Division of Highways,
<br />rno( Saeci 1 F-ro.lisiens accor.-q-cv yiny Mans .
<br />fb:°Anies"lLrl�t CCVER: Strength Classifscation shnuId be revieived to
<br />fhe fieid offer four"dction is e:rposed. f` excovot:'on disc.'oses
<br />foundation materiels different than presumed for design, the
<br />design shouldbe reviewed to determine the necessity of 6--
<br />Strorger culvert sec'%on; g-/-nprovemenf of bedding andlor
<br />Q-method 'B"bockfill,(see Standard Spe1 ificahans•,
<br />except vertical fovea of tre-ach she// rot be more thar 1"Outside
<br />dimersions of the :structure i
<br />EXPANSION J0/h'T'S N'ore in rove°-/ slab. Ur, der cover less t)ion
<br />soon length, place %2"exp.jt rrcter/gi in top s/ah and side
<br />walls in divid"ng s: r; or outside shoulder. Under corer more
<br />than spon length, place? expansion joints ln, toC slob 01`d side-
<br />vroM/ only of 301t rfrs., ord additional joints, as directed by
<br />the Engineer, of locc.trons of change of fcundation ma:°ericl.
<br />Cot,STFUCT iON LOADS: Ccos+ ur on loads heavier than n lc/ loads
<br />act pe-mi'4ed anti) concret= .Qs r�Toched a st ength o 3000
<br />psi and sfruc;'ure strutted 3.Id cushioned as dir'ectsd byErg%neer
<br />C'CATION NOT -SS
<br />HYPRAL'LiCS:lfslope Cfna,^urn/ channel exceeds "neu`rcl s/cpe"
<br />of culvert entrance copocity 1'or 10yr flood ; 0/0) will u.,ua!ly
<br />^fe'ermine air- Otherwise oo. ,pute total head= ( "-u-%'(IO5-0, ),
<br />w.rere "%r";s hecd fader, "L"is tength of culvert and <<?/co the
<br />00yr flood, Ord compare with allowable head Toby late,/ ele-
<br />ments are for full nominal sactioc.
<br />MAXIMUV „9VV?. ANowa:ile deperds on bedding and iaoctfili. Use.
<br />CASEZT-Fcr construction in irenc5 an hard fcuada'tian.
<br />CASE27 For aons;'rucfion in french on yielding foundation; a1-o
<br />if Method 'B"tcckfill is used.
<br />CASE= -For construction on hard foundotia.n.
<br />.461--= For construction ony:elding foundation also on turd
<br />foundation if N'e/hod "B"bockff.'l is used.
<br />F,v truth ar inf.ormntinn on � GSeS see n GCIifQ/n%C GU/vert Prccfice
<br />I.QcmON .wTES CONT'D
<br />DESIGNATION: Snow on plans as Span .r Height -Strength Classification -
<br />Case x Length: thus 4r. 4-A-MYx 60, followed by alternatives.
<br />ALTERNAT/VES: Invert will be sloped unless °Trapezoidal Invert , "Flat Invert "ar
<br />"V-Invert "%s included in designation. Ends of culvert will be rounded unless
<br />"Square End "ore designated Parapet on culverts with over 2"cover will be
<br />I, O"unless "—ft. paropeiis designated. Such designo.`lons moy be
<br />different for inlet and outlet ends.
<br />OUANTITiES: Quantities are for estimating only. They ore for the alternate
<br />flat invert slob and do not include splices in longitudinal
<br />bars nor concrete and reinforcing for special coverage. Lengths
<br />of `b "and "b' "bars are same. Vafy bending of 5 bars to suit
<br />bottom slab.
<br />SPECIAL COVERAGE: Where culverts ore constructed adjacent` to
<br />sa/t water, thickness of concrete shall be increased fo provide
<br />2"coverage between steel and exposed surfaces. Where scour
<br />is cnticipcfed, thickness of botfam slob shall be increased to
<br />provide 2" minimum coverage between steel and erposed surface.
<br />Q3F <,F ST.�"NDARD PLAY
<br />"STRENGTH CLASSIFICATION',' symbolized b/ tie letters S4,8,C,A`
<br />e: c., of ,the fop of the dofa table is merely a convenient desig-
<br />rolion for 0 partscular structural section for a culvert of
<br />any given opening. it is dictated by two : actors, (l) the method
<br />of bedding and bockfill, and, (2) the cover or depth of fill Over
<br />the top slob. For convenience, bedding and back,`ill conditions
<br />are grouped into'°Cases"ZC,eS .Pl =, which are illustrated
<br />by sketches and described ire P7o 'Location Notes." Wlth little
<br />or no information, or soil condifii:7S, assume CaselL ord.
<br />E`AMPLES
<br />AS DESIGNER: 1; .has been determined by hydraulic study, or other
<br />reasons, c std. /Oz 8'cu/vert 60'/ong is required, to be con-
<br />structed it,the open (no trench) on a yielding foundation end
<br />under 13'co✓e,>.
<br />Pro.edure.-From the sketches of Cases and Location Notes ifis
<br />found beading and backfil/ condibors conform to Case =
<br />Enter the tcb/e at the aid line from the bottom (Case-Y or.Ydl)
<br />and select the 2nd column under the 8'row where cover depths
<br />t^ l4 "are allowed Move to the top or this column; where the
<br />required 'Strength Classification"ind,`gated by the letter RB"will
<br />be found Final designation: Std, 10: 8-B-=x60'
<br />AS RF_ SIDENT E NGINEER.' It is discovered in making fhe excovafioa
<br />for Me obc✓e Culler,, 'hot fhe foundation is herd; irstead of
<br />yielding as expected, and thot compacted backf,1l w l/ be used.
<br />From infnrmotinn on the standard plans it is ascertained this
<br />.situation to be Cose ,E, which for n l3'cover requires Strength
<br />Classification "G" Accordingly, Change order should be initiated
<br />cc, lag for a Std /0x8=C-= x60:
<br />SKEWED PARAPETS
<br />AngSkewle
<br />Span 13
<br />4
<br />5
<br />6
<br />=
<br />allo
<br />4
<br />Rs NO.
<br />BARS
<br />P
<br />2
<br />4
<br />P
<br />5
<br />2
<br />6
<br />7
<br />8
<br />8
<br />e Rs12
<br />3/°--45"1
<br />"BAR
<br />4
<br />4
<br />6
<br />7
<br />8
<br />roar
<br />aARsi3
<br />O =45°
<br />4Hoop
<br />/2'"Ctrs.
<br />a
<br />!a
<br />a
<br />of Culvert O`
<br />- CA
<br />2
<br />of �c
<br />R
<br />o e
<br />o
<br />Bars
<br />0 3
<br />a
<br />O ,p o
<br />N L
<br />o _ - 4 Hoops Ld 12'
<br />Tot. 3 -44
<br />" t Radius of rounding=
<br />L f Bars / 2 but not less than 4"
<br />nor more ihan 7,3 f
<br />WITHOUT PAILiN6
<br />14 Hoops
<br />a12
<br />iRA SIA, FCOERML F4WECT NO.
<br />DI V. NO.
<br />CALIF,
<br />9911-3
<br />FISCAL I SXEhT I TOTAL
<br />YEAR NO, SR..
<br />To Accompony Plans Doted Lune I J%5i
<br />ci LogNTv Ra4�c ' 9e.� SMo. c[
<br />�,X SJ I/Z94i (/) nN � 2/ i Z6•
<br />gPPRDYEO Octobel- /O195Z
<br />-- Bar numbers denote nominal diameters of n uwuvwv ExRmEen aers u E E
<br />round bars in eighths of on inch. (Bar t v:3/4" 0)
<br />;en ih of culvert
<br />_SI] �_2 Note: Height and buffer of curb
<br />I
<br />1 I i .i7.`3_969 .Saecio/ Provisions may be varied to conform to approach curbs.
<br />4c"/8F__\
<br />1 "Radius C
<br />"4 Dowels @ t
<br />'"f ,Bor5
<br />_L'{:I1, — — —�
<br />WITH RAILING
<br />PART PLAN —SKEWED
<br />PARAPET DETAILS FOR SINGLE SPAN CULVERTS
<br />_Leith of cu/verf�� /<nnfh ofc"dverf
<br />— f"Bars.RLw Outer
<br />varies bars lenoth of parapet,
<br />ir"nerbars Jo 2 spans
<br />r I
<br />Radius of rounding=
<br />1 12 but ,nof less than
<br />nor more than T3 —
<br />WITHOUT RAILING
<br />Coast. Jt
<br />Curb details
<br />r; fc Those a.
<br />WI TH RAIL ING
<br />reinf 1
<br />Burs
<br />oocers.
<br />PART PLAN — SKEWED
<br />PAS DETAILS FOR MULTIPLE SPAN CULVERTS
<br />cplace I-becmfinin wli, `#,l @ 8clrs.
<br />height=thickness of slob, in
<br />grade top Culvert on/yard .
<br />omif cover slob. )flew construction
<br />Existing construction S
<br />CULVERT E TENSI®N
<br />Roadway
<br />�CompacIed Method'B"
<br />, Embankment backfi/I
<br />Loose
<br />G. L
<br />IN TRENCH ON SUBGRADE UNDER LOOSE BACKF,'LL
<br />CASEZ orlg CASE PI or.M' CASE ZZorZY
<br />BEDDING AND BACKFILL
<br />6eeLsec 12-54
<br />Deleted Sid Spec, Noes
<br />STATE i LPIII".I,A
<br />DECA RTMENT N 100-m VaRN5
<br />STANDARD BOX CULVERTS
<br />MISCELLANEOUS DETAILS
<br />If SCALE BRIDGE NO. FILEXIsr� I DRAWING
<br />Qevlsed 1-9-56., 2oiiinJc Details XS-1-29 A _ 9.
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