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<br />~ <br />. <br /> <br />. <br /> <br />~ <br /> <br />t <br /> <br />~ <br />, <br />.. <br />f <br />... <br /> <br />PIl:OolECT: <br /> <br />STATION: <br />SMEET Of' <br /> <br />t <br /> <br />.. <br /> <br />H1DROLOGICAL DATA <br /> <br />11...., <br /> <br />oi 0 "UIlOD <br />i CI DltAlIIIAGEAllU:_O STIIU.tlSUIl'€._ <br />i 0 CiWfNELSMAn: <br />;: C IlOUTlIlG OorllU <br /> <br />. <br /> <br />" <br /> <br />. <br />" <br /> <br />DESIGN FtOftJ'TAlLW4'n'W <br />""IYUIISI ~ TWllll <br /> <br />'" <br /> <br />~ <br /> <br />CULVERT DESIGPlI i=O~"" <br />DESIGNEIt 'DATE. I <br />REVIEWER I OATE : , <br /> <br />Iftl, <br />j <br /> <br />ROAOWAY ELEVATION ' <br /> <br />II.] <br /> <br />!_. ~!L,,: Utl s.: <br />i -- -_.c~~ <br />...\ "-FALl. <br />UlI.. - <br /> <br />~l~ <br />--I' <br />1 <br />l-EL.:,=_Cfll <br /> <br />5_S._'4I.L/I,.. <br />,-- <br /> <br />L.-_ <br /> <br />.. <br />~ <br />... <br />~ <br />.' <br /> <br />CULYEItT-ID~PTION: =~ "'. HUOWA'lEACALJ:U...IoTIDNS ..;, <br />"'. - DUTt.[TCOIrnICL EH ~~ COMMENTS <br />IIAnIIlA&." SMAPE.Sll[.(NTItA/tCE I"LET ""'... <br /> . ". "WjlO ", "ALL [1,.", ,. " !c:.! ;:.0. " " .,~ ... , <br /> IUol , ,. .., '" ... .> <br /> <br />t <br /> <br />... <br /> <br />~ <br /> <br />I <br /> <br />TECHNICAL FOOTNOTES: <br /> <br />141Ei...........j.E'-i11N'oVtT17 <br />IMI.ETCOIITItDr..':1;'hD11I <br /> <br />.. <br /> <br />U1uSlO,fN,"OIIIOXCULYEm <br />ItIM.j/OOHW ~ OItIlWI/OF1lCl" DESIGN CIIAiII'TI <br />11lFAu...HWI.1ELhlI_EL.,1,FAI.I.ISURQ <br />, . <br /> <br />l!l~'" ....$EDONIlOWWST'RtA.. <br />COtlTIlOl.OIIFLOWOElmt.. <br />CHANMEL. <br /> <br />~ <br />~ <br />~ <br />~ <br />. <br />. <br /> <br />SUIICItIPT DIP'INmoN. . <br />..."'''"1.''''' <br />1 DVLY'''''';1 <br />"OUIIN""~ <br />".Cao.'I1I11IIfIlolI.ll'CDtlt1l(L <br />....C_fl.IllOUf1.I'I'CO',.., <br />._l\fI.Ilccwr-.MC1IOII <br />:1, t:;'1~'R &1' C!A.un "u <br /> <br />CO....ENT. f DlICUS.ION . <br /> <br />~ <br />~ <br />. <br />. <br />. <br />I <br />.. <br />t <br />t <br />[ <br />~ <br />~ <br />, <br />~ <br />r <br />~ <br /> <br />III ~g -,.. . t4c.D/ZllwIIICN[VER IS GllU'lDI <br />l7INOG.lt+I:29"zI.I/IIL!3]VZ/Zt <br />1lIIEL....tI.O.M..g <br /> <br />eUI.VIUT lailtll:L IE1..ECTl:D . <br />SIZI <br />'N""f <br />Ill'TIIlIAL:~ <br />INTIlIoNCr: <br /> <br />Flaure III-17--Culvert deslaD form. <br /> <br />a. Locate the selected culvert <br />size (point I) and flow rate (point 2) <br />on the appropriate scales of the inlet <br />control nomograph. (Note that for box <br />culverts, the flow rate per foot of barrel <br />width is used,) <br /> <br />b. Using a straightedge, carefully <br />extend a straight line from the culvert <br />size (point I) through the flow rate <br />(point 2) and mark a point on the first <br />headwater ;culvert height (HW;D) scale <br />(point 3). The first HW;D scale is also <br />a turning line. <br /> <br />~ <br /> <br />~ <br /> <br />~ <br />~ <br />r <br />t <br />~ <br />~ <br />~ <br />~ <br /> <br />(NOTE: If the nomographs are put into a <br />notebook, a clean plastic shcet with a <br />matte finish can be used to mark on so <br />that the nomographs can be preserved.) <br /> <br />c. If another HW;D scale is required, <br />extend a horizontal line from the first <br />HW;D scale (the turning line) to the <br />desired scale and read the result. <br /> <br />~ <br />k: <br />.. <br /> <br />~ <br /> <br />l <br />l <br /> <br />d. Multiply HW;D by the culvert <br />height, D, to obtain the required head- <br />water (HW) from the invert of the control <br />section to the energy grade line, If <br />the approach velocity is neglected , HW <br />equals the required headwater depth (HWj). <br />If the approach velocity is included in <br />the calculations, deduct the approach <br />velocity head from HW to determine HWj. <br /> <br />e. Calculate the required depres- <br />sion (FALL) of the inlet control section <br />below the stream bed as follows: <br /> <br />HWd = ELhd <br />FALL = HWj <br /> <br />EL.r <br /> <br />HWd <br /> <br />HWd is thc design headwater <br />depth, ft (m) <br /> <br />ELhd is the design headwater <br />elevation, ft (m) <br /> <br />4S <br />