The URL can be used to link to this page

1998-5675 G ''31 {"o . ._-_._--_._~-_. -.-- Category I ifYI OJ/-/qrz Name Plan ck. # Street Address I ~~ OZ s-S" Serial # -- Description Year . . ~r · Civil Engineering . Land Planning . Structural . Surveying October 7, 1998 1 OF '7' HYDROLOGY STUDY FOR DRAWING NO. 5675-G DESCRIPTION: PAD GRADING PLAN FOR THE MILLER SUBDIVISION CITY OF ENCINITAS T.M. 91-198 DESERT ROSE WAY COLONY OF OLIVENHAIN OWNER/PERMITTEE: MR. DAVID MILLER 3080 BLENKARNE DRIVE CARLSBAD, CA 92008 - 1 132 N. EI Camino Reai, Suite N . Encinitas, CA 92024 Fax / Phone 760-942-8474 . . l of t7 1"". 1.7-e-"51t:,,J crz.I-re'1l A ~ -s..1/. Q.ouiJ1" -/ I'w?l~r-l ~ Wo~u(2.-E MA~ut~1,:' " 12.A-1LON A:1- MetHoD; G... :::.- C-./ A .. 71~~~ YkNtIL--f 1Z~?IV~N'fIA1....-: ~-:::O.?'7 .. U1Zr;A~ -w-AIJ AGf:-; U~t-. --? A?P~N\)\>< fl )C-c:' tic) :rr- . tt {D fZ{) \.-{)G-{ ~UD --I "A\Z.e\ 1 (~0 ==- 11,0 ~ .D t-\:; 2.10 - I t-o::: \ C?D \ L::: loool 'c?o:: O.\~ , 1c.-:::: \'7 ('4,,,-1. ( - . ~t.l c; , }" ~ 1.A~ (~.~) \<;7) ::~. fo~ \N/HTZ. , Q 100 ~ 0.717 (?;.b~)(11,O)::=?4-~~ , A~r;A 1- (~1,)::: t.O k .c.K:=: (gO-14o ::: 40' L--:: ~OO' ,So: tl.I'? .1c...-::: 10 MI,J. ..:e--:- 4.11- 1..\ IHfZ. , & 100:: O'~"7 (4;11-) (Lo):: .G.1- e.f5 , AfLb.---A ~ (A~) -:: It. fo M-- .1t.. ~ (3 MI~'. .'1::: A.e \,1}H(2.... b 1-\-:. I .10 - \ I 0 ::: ~o \ L -:. t?oo I .00:: I,.f!)fo <lQIODS C9.r7'7 (A,i>) (A-.C):: 10.0 ~ . . ? o,{? 17 $~ ~-.f'OfZAIjIAc.. A-~A1.~5 ..1Ie5 \&--t "PT. ~ I (o:P~I) #~""'G 11~, A fuVl- A.JkL-/'S\5 ~ ~J C-L.v'SloJ, . 1761(,,1-( 'fl. -<<2.- ~,'P,{t2--) , ~ 176. '7 fDrL Ar1Ai-+515 i ctorl~W5Io~, . 1701 &rJ ?r. -*' ~ (-P:P. it?) ,1?Asro od CQlOO:; [0.0 c-0 ~ A-~f'D 6.1ZAhts O~ r\rnfJ (,J~ VE-VlM ~ MOM-l'l-{ or- Cu(2-B 1~l-t:r5 1,J ~01'''P CA,..\vnloJ?; ",U0f7 1,.- - tul2--f> 1~U:.1S it/I t') O'P0-tIJe,S -J t4-\\ iZ-~..;p CAJl..-v~~: \,OD/o MIN. -'7L.oYc;. . . 4 o~ c; PROJECT: MILLER SUBDIVISION - NORTH DRAINAGE DITCH -1),"p'-t-1 DATE: 10-07-1998 PIPE FLOW TIME: 14:12:32 Diameter (inches) ... 36 Mannings n .016 Slope (ft/ft) ....... depth (ft) .......... 0.0200 Q (cfs) ........... 34.00 1. 40 depth/diameter. .. 0.47 Velocity (fps) 10.51 Velocity head .... 1. 72 Area (Sq. Ft.) 3.23 Critical Depth 1. 89 Critical Slope ... 0.0075 Critical Velocity ... 7.23 Froude Number .... 1. 78 ..U~c'--7 f''' 01)ly{0) 11-1")' VJI !rJ \ \)\K :: ~V \ / t>f'P11t :: \ ~ " LJ I I Lt iOl--l 'jG.IP.'fZAp Q~ OvtLe:\ . . 0c)fS PROJECT: MILLER SUBDIVISION - BROW DITCH @ D.P. #2 DATE: 10-07-1998 PIPE FLOW TIME: 14:14:26 Diameter (inches) ... 24 Mannings n .016 Slope (it/ft) 0.0200 Q (cfs) ........... 5.20 depth (ft) .......... 0.61 depth/diameter ... 0.30 Velocity (fps) 6.45 Velocity head .... 0.65 Area (Sq. Ft.) 0.81 Critical Depth 0.80 Critical Slope ... 0.0069 Critical Velocity... 4.41 Froude Number .... 1. 72 ~ut;f / 1-1 r f. " -p;, I' :B12-e u.l l' ITll.H 'P 8ft- 11-1? . . 'I TABLE 2 RUNOFF COEFFICIENTS (AATIOAAL i1ETHOD) . DEVELOPED AREAS (URBAN) Coefficient. C 5011 Group-(l) Land U5C A ! _ .f D Re5idential: 'Single Fami Iy .40 .'+5 .50 ~~ Kul ti-Uni t5 .'+5 .50 .60 .70 Hobile homes .'+5 .50 .55 .65 Rural (lots greater than 1/2 acre) .30 .35 .'+0 .'+5 . C~rci a 1 (Z) .70 .75 .80 .85 . ~ Irnpervi ous Industrial (Z) .80 .85 .50 .95. 5C7'k Impervi ous NOTES: (I) Soil Group ma~s are available at the offices of the Department of Public Works. (ZNhere actual condition5. deviate significantly from the tabulated imperviou5- ness values of 80% or 90%. the values given for coefficient C, may be revised by multiplying 80% or 90% by the ratio of actual imperviouspess to the tabulated imperviousness. However. In no case shall the final coefficient be less than 0.50. For exaople: . Consider corrmercial property on 0 soi I. &roup. Actual Imperviousness - 50"-' Tabulated Imperviousness - 8a% Revised C - 2Qx 0.85 - 0.53 80 ., ./ . , IV-A-9 APPENDIX IX-B ilc.v. Sial /. .~. c::: ~-- ~ 0 u - 0 - . f- - ..;. - - c:Z , to .-" t- "-- - c::: &.... ..-:t -,-"" .- - w t..:) >- ,- f.l.J I I 0 ~ <:::) -- I -"- : Ci. ..... I- : -..,. . I.J... ~.- -G~ 0 L.:..J . [ :::l en 0 - ......l c.:_ - ""'\;~ -=: - - - I >- L._ <:'0 :::J . .1. - tt:: 0- ~ Cl C/) !.t.J >- '\ I 0 = c--..I t 0 \ "... I. ~ % O. ... .1- L o~ Cl - -. W:z: - ...< '" <=>IIl 0::- [' %lL.-I <00 III "" lL.~!;:: OllJO :X:u ~~O _<0 =><>;0 o W-I UCllL. f' . . . '" - - '" - o .... . " ~ - \j\ '^ c::> C'.I W 0 s: '" 0 W . ..... '" W . .... .... x;: o~ j:w < ~ ".. l>J .. < (.J :l a 0::7.:_ trJ ::it- _0< ~<% :. 0 u> U i 0 ra.. ~ 3 .: 0 ;: 0 '! t.... (; ~ .;.~,.;:: . < "" .~:coo I .... % M ~ <u I ~ u,;: I x'''' . b.I < 0 Cl.. . "vi g G ...; ~ 7- - <( ~ >:.. o. I: 'w :0 :- .. ,. o .... :E./ -I~ ~ u z ., '" '^ .:r - (Xl o .... . - '^ 0::- '^ .~ .< U ,w .. '.. II-A-7 ,,;::e. c.:: - :=l - 0 Cl - - l- ....... I c:! ~ l- N - c::: C!.. <: - UJ c..;) >- . L:.J . c:::: CJ c.. CJ or- ,...",. - J....,.... --' CJ 0 (/) - -- --' I c:.: <::;:."" - N ::;.::. :=l --' c: c... < CJ w..J u') >- '\ I = Cl c--.I Cl I.- or- I u I >:: . ~ o.Il 2: 0, .... I- < .. .. . 01- 0.... UJ% ....< ., 011> =:...... <00 0 OIl c:: '^ ..... ...!i:~ .:r 0....0 Xu >-1- !;::C::O <:0 =>0...0 OLIJ-J, UOL&o.' . . ~, L-. . - - C .~. . ..... L- \1.) \;- ~ I 'I I w u 5: '" c :: ..... " .. L ~ %to :~ ~. _..l t:l ;-c: U !!; ~ =-;: W A< == ~ z. :;;U.,: 0_0 U ~~ .. tr..:=~ .0;: .___ '!' :"':1:2- z" ---r ~:u~~ i :c. 00 I- %.. e:: .. u < U;: _ c..~:.. 0 ~ .co 0:.:. r"\ u:: c.ri aU . .17:- :J <( ~ x" 2. .....; <0 x" .. .. L", - '^ '^ .:r . .... ..... .. .. iiO .. .0 - II-A-13 I- 0: <: :;:: <.J X ~ ..... Vl :.J '"" <:: .J - I- ~ ::::> a , >- f- - V> :z '-'"' l-- z: - CJ ----- - >,.c . "'..... OJ I- ;.. 0 0.... .s:: 0 -0 ~C: <nO ..... ..... c: 'O~ OJ OJ '" :::-,s... ~...~ -0 0 OJ ~ U-o-o >,tn .J:l .~ ..... > . C>,OJ I- \0 '" ., I- 3 I- OJ:I:-o '" u ~ => <: .s:: => => en 0.,.... <-' OJ u .() <::">,~ <n.....~ .s-:: ~ ~. \0 OJ..... U QJ Co. Cl ~ C ~ "" I-CC U'" c:.. .~ '" 0 II . OJ aJ'+-:J_ QJ tn ,~ I- .... ~ <<T C c: C 0 C.,. '" ..... \01 N~ "-"'OW v> ...... OJ 0. '" 0.. a.. ..... E1l., c. ........ 0 ..c I- ;. ~ <. '" . ...... 0::::::: ..... ...... => . QJ QJU.c E~ ~ ~ C -0 . .... - v, ..... OJ..... ~ QJ e ~ I -0 .~ ~ ~ OJ QJ~ . '" e: c;-. 0 0 >,QJ Cl -OQJC l- => 0 e . 0. ..... N v>~ >,e: ~ '" e c: ~>, ~ Cl .. '" '" ..... .... 0 0 QJ "'~ ~ ... e: c..dI-oa :::;:: '" ~ ~ .s:: C'" r--'0 0 rO-ccuO ..... OJ ..... ..... ...... QJe: , OJ - t::~......,..-C1J _.s::", '" .....'" II ~ . .... ~- ...... C .... 0...... ...... ..... .s:: C . <<T e ..c .cl '" !:S-_"'C => - ~ ~ Ol .~ Ol >, N ~ ....... <, U o os... c-a u:::a. co. => e U 0.. E e lJ .~ -It-.c..r:: OJ QJ-~ ~ 0 OJ'~ e - ~ ~ ..... U .....!:: U U I- .s:: QJ QJ - ~- 0. rotl1QJC 0 c...... OJ '" .s:: . .......0 => . . 0- 0. ....,...., S-'-') I- ~ l- .... . ..... '" .. a- e II C~ <: .,... C.o Co .;l: 0. 0."-' QJ v>e E. QJ ~ \0 <:; 0. => - .... .... QJe ~o . .... l- 0.. .... - 0 v>O-o .s:: '" .~ . '" c: .~ ~ 0 "- ~ oj< ..... 0 uE a.~ e ~ .......... .... .s:: -~ QJ..... "- () ..... QJ", "'~'" \0 .s:: I- ..c U ~ C:'" -0 . -0 :2: .... E ..... QJ -0 ~ U e: QJ N QJ .. <n Co ~ e: ~_-::r V1 \0 QJ ",QJ ~O 0 ..... ..... e: I- .,,,, 01 <n N QJ .s:: ..... ~ .~ U <n 0 E.s:: '" =:)0,,- => ..... a .......... :;:..... '" ..... QJ II => II - 0 .m c V1 .....,'" OJ n '" 0 - QJ '" ~ ...., II ..... S-'l:;f'..c; ." QJ '"0 ..c:..c 0 ~..... I-~ .s::.s:: U QJ \0 -0 U U lI-NJ-::::::O <+.J+J...., 0.. 0 Cl co. l-- ..... - Vl 0.. "" ..... ..... QJ ~ l- 0. - ~ ~ ~ ~ ~ 0. ~ ~ ~ ~ ~ Cl ~ '" C"") .,. Ul "" 0 ~ N M <<T <n _ '" >< ..... - >< "'" _'l" 0_ '" Z I VI l.Ll< ..... 0.. I '" 0..> :.> -<;- '" 6-Hour Precipitation (inches) O<no <no Ul 0 Ul 0 Ul Cl -- N ~ <D I: ~ L":;::. C _ Ul t: ~ l-- ~ ,..,. c: 0 '<:" .. ~ :r: ~ .Vl ..... '" ~ ,..,. ... '" C ~ C M _ c- ..... ~ ~ :z 0 .1 U ~ 'Ill I , v 0 >. <> . >- ~ .. c: C '" ~ C- o :', "- VI ... ,. II' N :r: C. ~ .. ,. 11:1! .,. <> .. n- o ..,. ... ... C :J ..... _ '" 0 ~ . . . '" H .... C- O ~ .:'- -~. 0 ~-:--+- LO , - /:".-:.'. a """ .f- a M ~ -.--1 a . 1- N 0 -j ..' .. l---! ..... .,'; I," . 0 .:.,.1 , .. .. <t> " , . Ii.. ,I: .1;-' , ~ " ~ . , : I '. -!--+ : ~ : I , ','; I , , --r- 1 1',11 I, I I 0 ~.'-r . , . I' ., .... -!' i;1 I I I , I , I ,. ,: ,;Ili;. "ld ': I ~ .: .. ... d .. , 0 .; ~ .: -l ":. -. .." ~ ... .... -: w ~ (-mOll 1~::llPUl) ,(llSU::llUT APPENDIX XI IV -.6.-14 "",'o.O,c3 ':"~;~~5;h~;";;:,~~.fc;}'t~;L,!t'f~i,;i~~i~,; -;--~. .:. :':~"~:':::.. I!~~~~~~~ Ifj~~_--7'~: ii~~"~' i'~ ..-=- ==::".;_ II E.~'~~ !1~~1:~ ~ i.. ~ ...----=..?~...::::::~~ ~H ~7-C ~::.- . I~"--=..-=.:...~ !/. :,,,--..--.~~=.:..._~!: . 'I. F'~.-'::-:->i-~ :;'11 ~:~"';"'=.:::~...=-~ I'''f~,~ I~~ ~.,:;~~~ I;!;~ s:~~~.~.~~::-_ .rl'~ ";;"'.~'>--~.:..........-.. n" ~--.. -. "'- lil/'j ~~'~:'~"'~ ; ,~~.'':~::. '. IIi! ~ '.-":_~'........ ._....._ ~~j. ;~.~:..:;~;I-:.: I'I'~-.~':-,":-:,",;' 111::. r.~~ ...~ ~~_,~.-~..:. ",,1 '~~'.;...- . ".---- i~~' ~~~~':~~:{~' . ,llj =-=--.... .......... l;.l~ ~~-.-,.::;;;;..~ 11j!ji f-~"':?:=;.;:';''..~~.;':: I~" ~~~.:._. ::':".;::. .j .~~ ','__..1.... ~~ 'Z'" ~~~~7:~t:-:;j' f lili fi~ii~~~ i. ;:"1 ~,~~" -'~;S~' : !i~~ f{f~{~~E- I 1't:1 V~ ........_.:.,-.~~._ J :~:~~:j ~i;:~~~ :d [0~.".--'-':~,;;:;::;; I :. ':~'r ''';''~~:...:..~''C:...~. ; i. ;:;i3 i~~~~'-~}'- I .~=-:; ~:.:.:..~~~-=--=-_ I _'~~~ )(~~~:::;.=:~.:.. 'j ~i..t~ ~t~-;-'~~0-'" ., i~m~, f,~~ I~::. ~,~~,c..~.--L'-- ~ ,o;:;.,~~~ ;.:.JM ..~.-' ~~~... 11~~~;:;~~~ !tl t;~_=::""-~_ ~?:::::~-:-: ~:..:1 n:-~~~_ ,.. ";",<<).-- -~."'- ,fiJg~~~ " IIt.S~~~. .:..~~ .;..,.." p~-~~, - J- ~i] "",~_:t__~~ ._~~....... ;.'~ 11:'~m:;~-%: 1.e.~1i';~"",,' -'-~. v:--. :.t.. ;u :;"~", '_."," ::iiA.f _:jof~l;i=P'.~-="r!l.~.:~ t'w ffi~"'<=--' jil~ - '_~-:'" ~....~~ iiJli - ~~::=<::7..;r-' "1'''~''~ ,,-, 1'1f~!'~~~; XI" ~J. w..;o-lO .,_'" ii!!: /.'I;;! ~~=:~, IliiJ' .~~~Z,".: ", I - - ':::L...-.. ~ I j!:i .. l""..-;)--~.---'. 1: I : ~n . "~.~~~:;! --- -- - .. 11~:_l"'';.~...~~~:..._L.''.l..~ - ................-_,'\..:.-..r-r .-;y. ~_. ~....~. _.., . ~ . J1.'~~"""''''''''''':''I''':A..i'''_''---_-:''''''W~~'(..-! ..........:.,.-~_.___ ;:~'';'::'-~~:':''-l'~- . --':::--';:*,k~:....l.Ir'r-r-::.. ~. .....~..,~J..=.....:;~.....;.t(.:/. _-.....-r'" ~\,_...,.I""'CIo--ro-'""~~.~I-,",_. .,_........~-~....~....... _;~._ ;.....-:.~r-..-.I............. '...........;:;-r.-.:.-..T~_._.'. .. ... "-~~-"- . '.~._~ -' -- ~....:.- _.~:., -.- --- -"~"""""- - . ~r--..~:.a. ._- '",,-__ _, _._-....-.:::!\t)'03.:--'..c'~ .... .. ._...,.,....,.. .-~:r,:".:':.::J.:,~:. ,.r~,"="J7_~. -:,:-.';..-;- _ :...~'__:!~:~=-':- _ --'-:-::~-"3""""'. t.:'..:.-=-_. ~~..: ."p'r.:. -:="__.~f ...~ ~ ~:....:-._..:..-.:_~ :'. "-:"'::-_ ....:...J~...- :":':.';.~~~~:'" '~-' ~~--. ~ .~ ~. '.~ -':! .~ :.<.. "" .:~ .~ - .~ oJ; :r .} .). , ... . . 3 . . ~.~ LJR,13A.J ".brzA I"" Ac, If. 63 :! TIME OF CON0-;.-vTRA nON :.;- CD .. '" -= ;:. c: g a ~..9 .. '" 0.. ,. .s.li1 " a. " iQ ::r soo ~ r :.::;; '" . :i-' soc sa ,.. " Q U. ." c' @ a u " a '. .1 -;; ~ 400 " > .. ~ ..,. " n Q " -= ~ . ~ ~ ;;: 1--- Q > o -= 200 u > Q ~ 4Q '0 a E ;;: '" " a Q > o o I c _ 0.95 a FlQur" .:]:.1 a Overland tlml! of flow graoh. " t( ) , " . ,; . .' .. '. , .' . ;: '.' , .' ,i I:...... -""";-." i; \ ;,~ t ,-.," ..... . . . '. . - ..... . 1 j ! . , ,i , l( ..1.:._ (', .. " ) \ 'I"~ -' ".", :' . 'j:.. ' ,'I-- "-' 8 "- z ~ ~ C) u.. o !-- .2.5 I '" 8, I ~. '" -L ., . ...i", /. :,.> .15 ~ l,1 (/~~:.. '-~:..-' /, '"" /. "(f" ;~, /,~f":'~'i) . " 1.0 12 10 ..... 8 G '- \ ,\ \" I-- "r 0 0 3 l1.. c: W (;; u: 0 1.0- z 0 .Y \I' .9 10 .8 9 .7 s 7.5 .6 7 ,C~;_~;' >;~'rA~~ ~ l.<.___-.~~ -. .. ~ ,6 -3 ' ,: /;'l~~' ;7 l ..../Z' ,.3'~ .... W ./ Cl. ,-,.1)'..'<:'" " 0.2 ~ <:~~ ~..? tL 1 , " i,~ " " . ~ .08 j : 0 .05 '1-- o o .04 u.. " -.1" ,r:: ,03 w 0- .ozJ >- I-- J 0 -<l: c.. "., 0 L '" .'-' 6 ,"" ~' .gc<:L~IC' .. ~ "'"lOC;.L -t;- D:.:;>,-!:::s,':iiCH (0..), 5.5 tf) w 5 ~ . [-107~~-C31 .~. . 8-.: ", ...= __ {11'1-.: . '-'_V ~ -- <-,-I". 7", .~~ . r I..., "-_' Z 1-, '1,,5 ~ \, }- , {,.~ "t' '" ' ",'- ., .t:. . ."'\,0" ....... \~,' I (?)" - c.", O~;"r...~ .../ \. r'.../ '" 0........ \'~. .," ,,~l , .'j} , J';, "tlj' /J .\' '------ ,<.? .:z: /'~5 , '" 4 --:5 2. -1.0 C) -.9 l', 0 t~5~ -}4 ,~ -1 W .0-1 C- O 3.5~ '/ c... /" g../. . A~ /0 3 l- I <.? W 2.5 .2 1-2 j .10 i . ~1.5 ~ .I-L.2 '. :"; 'oJ :z w Cl. 0, ~ -'-.n 'v V" I) ,. , ~ 1~'7 :r: -.6 '" w -~~.5 i .4 o I-- :z: :w Cl. 0' .. I-- -<l: ", .. ...;,. / . . . ", ; G.\ ~ _pI " , () . f\ . i:; ,; /' . ')' .:y. - ~.. ....' . "(, ," 'j . , : '\ . :1 '{:/ ' ..J ,/'"~ '\ '. 'f ......". '{' ~ .3 r.25 f-.2 t ' ~ r.15 ~ ~ ~ I t.-O~ ~ . .: ......- " 1:_ ,}-} ~- r.. -;c /.2;':. ~- c" ...L- '" b';'; , ' I--- '-I _ n.. 8 o u.. o '\ f . -, --A- ~ ", H7. " ....-f:;~ ~:l ~ co w I-- :S ':>- ~ f BU?::::..tJ 0;: ?U~~lG ~~O,\DS 01 VIS\CJ~! TI'IO ',;.\SH.; O. C. N O!.\O GHA?H FOR C;:,P/\CI";Y Or Gvr::) OPEtllNG INLETS f:.-r LOW POll\~T~; OF CULVERTS Page liar Corrugated Meul Pi~ Proja1ing .................... .......... ..188 liar Corrug:Hed Meul Pipe Projecting .................................. .189 Ill:.!r Corrugate-d. Metal Pipe Hadwall .....................................I!lQ J]:u Corrugau=d Meul Pipe. Head.....all . ...................................I~ ubr Corrugated Metal Pipe Hadwall .......... ....................... ..192 !lIvens Flowing Full. n ;;::; 0.024......... .193 ,hs for Circular Corrugoted Metal -Structurel Plate ;e Circular Co:-rugated M(:ul Pi~. ... ..194 II: Circular Corrugated Metal Pj~, .... .195 ,:e Circular Corrugated MCl...31 PiPe. .......................1% ~e Circul:ar Corrugated Mew Pipe. )~ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19i Hgaled !>ole:.1 Pipe Cuher!.! Flo....ing Full. ... .19; ,phs for Corrugated Metal Pipe- Culverts >e-Arch Cuhnu with Inlet Ganlro! ....199 rlugaled Mnal Pipe - Arch. Projectins- . ....................200 rrugated Metal Pipe - Arch. Projecting -...... ............................... .201 oTfug::ned Metal Pipe - Arch, Hc:3d\<,'all ........................................m .rrugated Metal Pipe - Arch. HC2d""all - ................................... .203 - Arch Culverts Flowing FuU. n ;;::; 0.024.. .204 rugated Mc:LaI Pir= - Arch Cul\'CU, ; Full. n = 0.032, to 0.0306"............ .205 .th for Various Discharges ~raph.s wbeJil outlet u unsubm~) ................................ ...... ..206 I Horizooul. CritiCill Dq>th...........:.. .207 ~ Verticil. OitiCl.l Depth............... ...%08 ritiC:l.l Ikpth...... ........., .............!09 h. Criuall Depth........................ .!10 -!:: APPENDIX 175 t ! I CHART i II. "' ... ,.. ... "'. ... II .. ~ " W % U !i ~ .. ~ !i u e .. !i ~ 2 c ../w w .. > ../ c = c ./ << ~ % t .. u ~ c Q w SO ~ w ~ " << Q " ",,- '.- [UYPL[ ',000 ,..r__U.t'_1 '.000 '..tOrto ',- .... .. - '.000 '" ... u '.- ., .., ,. .. u ,., ,..1._ ',- '00 (I) (31 I;. .. ~ , I t I. ,. c; '. .. ,. , ,. ---- -.- . 10<> ... 400 -- -- ../ ../ ""y '-~ ./ ."" /' ./ ../ -2:' ~ iE .. ''''' l. ~l '-. ,.. .. ~ << w ~ !i' << Q ~. '-. t .. " .. H" 0: SCAlE ,. ...-,..-.. __IJ III .._..._r ....1.";.. -" .. . I . . h.__III"UI...,... ...11_....,.......111 ..... _.....,...;..:.._10..:......... ._o.u...,............ -........ II , . .. LC .. .. .. II HEADWATER DEPTH FOR CONCRETE 'PIPE CULVERTS WITH INLET CONTROL .........-.IC_ _ eel '~r . . · Civil Engineering . Land Planning . Structural . Surveying September 18, 1998 1 OF0 SUPPLEMENTAL HYDROLOGY FOR THE MILLER SUBDIVISION " 8 "!DESCRIPTION: SUPPLEMENTAL HYDROLOGY MILLER SUBDIVISION CITY OF ENCINITAS TM 91-198 OWNER/SUBDIVIDER: MR. DAVID MILLER 3080 BLENKARNE DRIVE CARLSBAD, C 92008 760-729-7 8. .. t{; 132 N. EI Camino Real, Suite N . Encinitas. CA 92024 Fax/ Phone 760-942-8474 e- e .. (Lok b -:1=. -7<RPU;M~ ~'3 'Pea. 'P,C!., 12t;&~ "'7JT'~~krlo..\lfuvL6,..1 \J~"7lDE. __ /..iJ. --~---;A~--.~---rb1:;~o---~--_l. ffi~--~tW~~i-~~---6i)- --~----':.&1~OO~:::-A--)<~C-~--==--.1o-CB-----('~E~~10Y-L:7JlgE~ _ Q. ) ,P87(JN1f2..f1AW . l~ '/-z.. A 1/1.-- 6f-l ~\ --------___..__~~---:F'?l..,--~---~~__' _M ~i?\2__ - .'I2.(P-rz+P ~1~,Jl, (3 DUTL-\:."'-Of 4w~ f-l-+- - '. .. ---~_:_--,--17e.-H t f<.( {,)=:12~..-:-DN~I1'E:____..::;--:\J~~-C;1 oe-b-j------- -- --- --- ;A:fwA--~ -l~;~ 6.::- O.IDkC - --- -..-----~-& ((,-o-~----~)'"-~.(O~--O ..,,-~----- --------- -- _m --.--- - , 1 et 1" li. I 4- . 01'2-- AJ.ik0-fs ( ~ - . , iZ-1? . j.<A-p,<7' \ ~(J(-\-<1DJ1t..e:Tor.: Wl.-Vtfh.--"f . - ot-.\--p~~fn"p:oc;f:' (II.) 14;-1 -- -- --- ---------- ..- A-J\--;/\\ --.:; - -"1/17?0=~-------(~ ~ r-woV\eQreYL-tl-fi)l7.<),MlI.-t' ) #I,I~"\-. _ L-,VI__ .' . . e (00 -=-- t (l"VI) ;-- '7, '7 -:: j (0, \ Cf5 ..----~-4~i56~- - '?-~--fClVL AJ.A-C"F>\5- PROJECT: . 'J; tJ {- b . VALLEY SIDE LANE SUPERELEVATION INVERT WIDTH (feet) ... SLOPE (feet/foot) LEFT SIDE SLOPE (X to 1) ........ DEPTH (feet) .......... VELOCITY (fps) ........ AREA (square feet) .... CRITICAL DEPTH ........ CRITICAL VELOCITY. .... ~ ...l j- .0,1 ~ ~ Q,/~ \(z, l' 1f'c.5 ~1J&I~-; TRIANGULAR CHANNEL DATE: 09-18-1998 TIME: 14:14:46 0.00 MANNINGS n ........ . .018 .1500 Q (cfs) ........... . 3.00 RIGHT SIDE 0.50 SLOPE (X to 1) .... . 50.00 0.15 TOP WIDTH (feet) 7.42 5.50 VEL. HEAD (feet) 0.47 0.55 P + M (pounds) 34 0.25 CRITICAL SLOPE 0.0096 1. 98 FROUDE NUMBER ..... . 3.57 ,{ --1 J- ~ \JAM-tA -?\v€ (,;.\. 11 1~"0" ~ r A\ZOvr-lD ~ 1',v(2.Vf.. \ 1 &.7)2-(1.42-) _ (9,Ok [ (g 1.-- ('J'l.. 1.) A O,,\q I ,L... o:tzi' ~ D.le; k-D,D -::: 11.-' ... \<1/ k1tYL- ?7-rA-/~ (,..1 ~1Z-8::..T <I , . , . 4 O-t b PROJECT: RIP RAP SIZING @ END OF SWALE ON-SITE Diameter (inches) ... Slope (ft/ft) ....... depth (ft) .......... Velocity (fps) Area (Sq. Ft.) Critical Depth Critical Velocity... PIPE FLOW 12 0.1500 0.14 7.18 0.07 0.29 2.60 DATE: 09-18-1998 TIME: 14:21:55 Mannings n .016 Q (cfs) ........... 0.50 depth/diameter ... 0.14 Velocity head .... 0.80 Critical Slope ... 0.00B5 Froude Number .... 4.02 g \! -=- '1.l ~ ~1' $" N D.l.- 17Ach I "'b (,,^I~ ~ ~Ut;f---7 . . tio-f6 PROJECT: RIP RAP SIZING @ OUTLET OF CULVERT D.R.W. DATE: 09-18-1998 PIPE FLOW TIME: 14:29:41 Diameter (inches) ... 24 Mannings n .018 Slope (ft/ft) ....... depth (ft) .......... 0.1000 Q (cfs) ........... 10.10 0.60 depth/diameter ... 0.30 Velocity (fps) Area (Sq. Ft.) 12.75 Velocity head .... 2.52 .0.79 Critical Depth 1.14 Critical Slope ... 0.0100 Critical Velocity ... 5.48 Froude Number .... 3.42 . ~ -:.- 17..1 t) ~S" ~ U0t:----7 ItA "OJ 12-W.12AP ') c11 I I , I I Selection of Riprap . and Fi Iter Blankct.:.Jaterial I.--C--'- :....11 ; I~ - I SP5a.J.- " 60(6 Upper Layer(s) I \"elocity I Rock Riprap Option 1 'Option 2 i Option 3 Lc.....-;:::- ! l Ft/Sec. (1), Class (2) Thickness T (4)Sec.200!(4)Sec.400; (5) L:!:,'e~' 51 A6-<9?E{;=t'r7E Sr:z.E.. I 6-7 No.3 Back~ .6 3/16" C2 D. G. I ing .: ,...--' I -. ..---------.... I .. ! 7-$/ . No.2 Back- 1.0 1/4" B3 D. Gj - I ing ~ , - - ". j , 8-9..5 Facing 1..4 3/8" D. G. . - - i \ . ! 9.5-11 Light 2.() 1/2" - 3/4'h,i?lh" P.B - ! i .11':'13 !.; Ton 2.7 3/4" - " ctt" " " S:;..,d ; ! 13-15 ~ Ton 3.4 1" - " a:< " P.B. .. : . 15-17 1 Ton 4.3 l!:l,r - Type B Sa;;~ 17-20 2 Ton 5.4 2" - " " S"':ld I : i. <::o,,"n b,'/}'-"l 610;' ~ f- 1"'0,,1< El.s"'.Y:d = /1""" Filter Blap.ket (3) ?::-a~~ic:ll use of this table is li::d..tcd to situ2.~io;-;s -;..-::e:;c T is less t?:a;-r D.. T !\O~S: (1) . Average velocity ever is greater.. in pipe or bottom velocity in er:ergy dissipator,,.-hic.'1- (See "IUprap. Selection ~fethods", D. Sc;FC, Coun~.y of S.D.} ". (2).. If desir2d ripr~p and filter blanket cl~$s is no: available, use "" lar~er.c1ass. , (3). . Filter blanket thickness = 1 Foot or T, \.;hichever is less. (4).' Standard specifications for public "arks cons::ruction of Souther" Cali- fornia Chapter of APl'iA and AGe.. See f::I. 4b 1 (5). D. G. = Decomposed Granite, 1 t.!.\! to 10 !.!:.f P. B: = Processed /.Iiscell;:meous Base ~. T}pe B = Type.B bedding ~aterial, usually availaole locally (mini=~ 7S% crushed p&!rticles.. lOO?(j passing 2~rr sic'~~e, 10% passing 1" sie-:e) (6). Sancl 75% retained on 11200 sieve . . · Civil Engineering . Land Planning · Structural . Surveying .....__.----~"'--~" '--, i 'I " \ ~ \ '" ; " August 18, 1998 City of Encinitas Engineering Department RE: SUPPLEMENTAL HYDROLOGY REPORT - MILLER SUBDIVISION DESERT ROSE WAY - CITY OF ENCINITAS TM 91-198 Gentlemen: Please allow this letter to serve as a supplemental hydrology evaluation for the subject subdivision. First, it is important to note that the on-site pad-grading plan has been deleted, as this plan was required to go through design review by the Planning Department. Since it was not a requirement of the Tentative Map to provide or show pad grading to record the [mal map, it was decided to process the pad grading plan under a separate permit application, which will be forthcoming in the next couple of days. Therefore, since the 1 DO-year lines of inundation have been approved pursuant to a previous plan check, the only remaining item of concern was the drainage on Desert Rose Way. Attached is a hydrology map and calculations basically showing that all the water that flows onto Desert Rose Way, as it pertains to the subject T.M., is adequately handled and does not overflow the curb and/or berm. The basins around Desert Rose have been divided into three sub-basins with the following summary of our evaluation. DESIGN POINT NO.1 (D.P. #1) The intersection of Desert Rose Way, "C" Street, and 14th Street has been designed to route all the water from this basin to the draina~e structure( s) that were built for the Olivenhain Estates Project. The water from 14 Street is routed around the curb return and down "C" Street towards the "sag" condition in said street. Of course all of "C" Street's drainage is routed to the same location. Therefore, the only real drainage affecting Desert Rose Way is from the other two basins. 132 N. EI Camino Real, Suite N . Encinitas, CA 92024 Fax/Phone 760-942-8474 , , ' ,I .) -------, i j [i " . . ~ DESIGN POINT NO.2 An analysis was performed to determine if the 100-year drainage could be handled by the north side of Desert Rose where 10 feet of pavement and a 6" berm are being constructed. Based on the attached analysis, using a Q I 00 of 2 times the area in acres, which is fairly conservative, it is apparent that all of the drainage would remain on this side of the road. The curve area was checked and it also can handle the flow without "jumping" over to the other side. Therefore, the south and east side of Desert Rose calTies only the water that falls on that side of the road. By inspection, the pavement road and rolled curb on this side of the road will be adequate. DESIGN POINT NO.3 Finally, the last length of Desert Rose is straight and can also handle the flow based on the attached calculations. This water is then routed to the existing culvert under Deselt Rose and ultimately, down to the "creek". The entrance to V alleys ide Lane was designed to be slightly higher than Desert Rose in order to keep the drainage on Desert Rose and not routed on-site. In summary, it is our opinion that the improvement plans for the subject subdivision can adequately handle the anticipated drainage. A more detailed analysis of the on-site conditions will be addressed upon submittal ofthe overall site grading/drainage plan. As Engineer of Work for this project, we respectively request your acceptance of this hydrology evaluation for Desert Rose Way. Again, the evaluation ofthe on-site drainage will be address when the overall pad-grading plan is submitted. Should you have any questions or comments, please feel free to contact this office or respond, such, with plan check comments. Attachments 2 , . PROJECT: DESERT ROSE WAY INVERT WIDTH (feet) ... SLOPE (feet/foot) LEFT SIDE SLOPE (X to 1) ........ DEPTH (feet) .......... VELOCITY (fps) ........ AREA (square feet) .... CRITICAL DEPTH.... .... CRITICAL VELOCITY J/.'P, -tt ~ "J\::: 1.\C7k. ~/ """""'-'- 6'1~\ )1 ~/ I y~ \f 1- -1 r-c. .3 , lIe?'1J..\ :: 0.00 MANNINGS n ........ . .018 .0700 Q (cfs) ........... . 2.50 RIGHT SIDE 0.50 SLOPE (X to 1) .... . 50.00 0.16 TOP WIDTH (feet) 7.98 3.97 VEL. HEAD (feet) 0.24 0.63 P + M (pounds) .... . 21 0.23 CRITICAL SLOPE 0.0098 1. 90 FROUDE NUMBER ..... . 2.49 . TRIANGULAR CHANNEL GlbO';. 2..17 e;(? '( { Ibl (?CJ1Y"C1.Q"i:-) _ - 12' (?'Z..:Z..') D.( b +O.D '7::: I 0.1..\ ~ . DATE: 08-18-1998 TIME: 12:47:08 t--- 42. lI~"Yt;r TloSf I I ----L- + ~.. AlWU"D ="G , D.Or; ~ 0,'20' ....- (IO'@.. t.%) .. - . WA-1t?iL ~> oJ NO'Rn.-l~I1)f" --.........,.......~-'~-.,- . . . PROJECT: DESERT ROSE WAY . ~ TRIANGULAR CHANNEL DATE: 08-18-1998 TIME: 12:44:30 INVERT WIDTH (feet) ... SLOPE (feet/foot) LEFT SIDE SLOPE (X to 1) ........ DEPTH (feet) .......... VELOCITY (fps) ........ AREA (square feet) . ... CRITICAL DEPTH.. ...... CRITICAL VELOCITY ..... -V.f. -t? ~ A-:. t.1C7 ~. 0.00 .0930 0.50 0.20 5.39 1. 02 0.31 2.24 ~ '" '" MANNINGS n Q (cfs) ............ RIGHT SIDE SLOPE (X to 1) ..... TOP WIDTH (feet) VEL. HEAD (feet) P + M (pounds) CRITICAL SLOPE FROUDE NUMBER ...... 6;100 - ~S Cf-S (1...,< A') .018 5.50 50.00 10.15 0.45 62 0.0089 3.00 V-JM\;fL ~{, 0,.1 ~e>"\ ~ IVG: NoText NoText NoText