HomeMy WebLinkAboutTract No. 14402 Hydrology Study,
:KENNETH A.POWERS
RCE 33820
TENTATIVE HYDROLOGY STUDY
FOR
TENTATIVE TRACT 14402
NORTH OF BASELINE AVENUE
EAST OF BEECH STREET
CITY OF FONTANA
SAN BERNARDINO COUNTY
Y
METHOLOGY
The following criteria has been used to analyse the probable storm
flows impacting the project site.
1. Data Source: San Bernardino County Hydrology Manual.
2. Rational Method of calculation used.
3. 10 year and 100 year storm frequencies calculated.
a. 10 year storm carried in streets to top of curb.
b. 100 year storm carried in right of way.
.1 ANALYSIS OF OFFSITE DRAINAGE
1. As ofthe existing condition, and per study done by
Tentative Tract 12314 located to the east of Knox Street and
north of Baseline Road, a large offsite drainage area to the
north will be conveyed into a proposed retention basin to be
located in Zone 11 of Rancho Fontana Land Use Development
Plan. However, an offsite drainage from an 18.52 acre will
still contribute to our proposed site from the North East
side. This offsite will attribute drainage to the North East
Tract boundary and will be conveyed into Village Parkway and
then will confluence with the onsite drainage and conveyed
into a proposed detention basin via a proposed catch basin
located on Village Parkway.
2. Another offsite drainage area affecting Tentative Tract
14402 will be from the South East side between Knox and our
proposed Tract boundary. This drainage offsite will be
conveyed onto Baseline Road at the southern tract boundary.
ANALYSIS OF ONSITE DRAINAGE
Most of onsite drainage will be intercepted by the catch
basin on Village Parkway where it will be conveyed with the
offsite drainage water into the proposed,detention basin and
then the storm water will be metered into a proposed 36 inch
RCP where it will ,daylight on ;Baseline Road through a
bubbler drainage structure.
Another onsite drainage will be from proposed commercial Lot
31 where the water will be diverted into Baseline Road.
Sierra Engineering
CIVIL ENGINEERS • LAND SURVEYORS • LAND PLANNERS
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27007 FIFTH STREET
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CIVIL ENGINEERS • LAND SURVEYORS • LAND PLANNERS
DIVISION OF PROJECT 2000. INC.
27007 FIFTH STREET
HIGHLAN D, CA 92346
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Job No gc7.•2i Date
CIVIL ENGINEERS • LAND SURVEYORS • LAND PLANNERS
' DIVISION OF PROJECT 2000. INC.
27007 FIFTH STREET
HIGHLAN D, CA 92346
(714) 862-9400
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Sierra Engineering
Job No 4312,4Date
CIVIL ENGINEERS • LAND SURVEYORS • LAND PLANNERS
DIVISION OF PROJECT 2000, INC.
27007 FIFTH STREET
HIGHLAN D, CA 92346
(714) 862-9400
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Sierra Engineering
CIVIL ENGINEERS • LAND SURVEYORS • LAND PLANNERS
DIVISION OF PROJECT 2000, INC.
27007 FIFTH STREET
HIGHLAN D, CA 92346
(714) 862.9400
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CIVIL ENGINEERS • LAND SURVEYORS • LAND PLANNERS
Job No g9/9 2 4' Date
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DRAINAGE ANALYSIS
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PAGE .
•S iN E:ERNARD IMO' C0IJNTY RAT 1:C11`fA[_ 'F>:• 04 R (tM
-_COPYRIGHT (C) CIVILOIECIC'imiCIvILCAtm, 1.928
RAT IONAt HYEiROLOGY• STUDY DATE: 6-21-89.
T ENTAT:[VE Hy[ii:;gL GY... S [UD`r'
TENTATIVE TRACT :I.34402
CITY tJF. FIJ If•AI','AF. SAS! BCER' AR[i1:'r0 COUNTY
* P CIF .E !-IY[?l<;f:iL(.JOY Tl'?F0RMA i 3.0f,,a:.
1. `.+(i.., 0 YEAR STORM I• HOUR RAINFALL . (INCHE ) •1 .530. .
COMPUTED RAINFALL._ INTENSITY
TOk i YEAR•- 1.00 , 0l 1.HOL.1i=, RA I;dFAl_I_ •< TNCiir v; = 1.5300
SLOPE USED FOR INTENSITY. CURVE• _ ti C000 .
O 1L•A`JTCCEDEE1•n MOISTURE C OHO IT ION ( MC) w
.-1-+.f..f..f..f..f..f,'.f..a.4..}..!.4-4-i-+++:}.}.+ f.+t+++`-4-+++4 r+++.f..1'"++.4a-.f..f.t-d••+++++:{..r_++.+•r•1-++++++`s-++., .s-4
P OCE S .FROM 'O INT/STATION1.00 TO POINT/STATION 2.00
*)* INITIAL AREA EVALUATION
YiF•)r
DECIMAL TRACTION SO I1.. Cii., (JI.JI '►.•1 .00f)
DECIMAL FRACTION SOIL GROUP
DECIMAL. FRACTION -SOIL GROUP C u0(1f.1
1"E:C: I.iAL. FRACT ION SOIL f. i:OUF•' 0 =
PEA :I:I)F.};T IAL (3 - 11 •DU/clC;)
r.S CUI VI_ NI-I1rir:I:1: FoR SoI:L(CMC. 22.
(IC! U'3TEC! 5C: a CURVE NUMBER FORAMC 3 - .02A
r. ti ` i -ram S 4'• / r.
F°E:RQI u.s �r•tT0( P) ..i_;0� MAx •i...i.J S. RATErtI M)— AT.I(I!I.!-It••)
bUr�AREA•. -. RESIDEt1-i ICJ!_ (3 - 1.1.••CCU/AC) •
INITIAL SUBAREA FLOW LENGTH . 8» 118(FT.. )
UPSTREAM ELEVATION 1396.00.(F
•Di'ftT1.r t. ELEYATIoN ma c•^ -r)(FT;
':.I.-1 V(`T1:CIMI DIFFERENCE _ -. 0(FT
SLOPE _ 0:1.. 2CJ S(%) 1..113 •
SC ` l((„y12)*r(LENGTe3)/(LL.FVATION CHANGE)_I0,..
INITIAL AREEA TIME OF• CONCENTRATI0N• -• • I8..296.MIN..
:1.00.00 'YEAR COMr UTEC!• RAINFALL INTENSITY. - 11 Si)Ci 1N/I-lR
c FF .CT3:VE RUjji'''•OFF COEF.F IC IENT USED c OR• TOTAL AREA0-C IA) I ✓ `- .812 •
SUBAREA•(SUNOFF = 3 i0(Cl-S)
•i OTAL INITIAL. :=!TRCEAM AREA � C;i�1 ((1L .
j.� C••FRACTION
ERVIOII,y AREA .�00 �_
INITIAL. AREA FM VALUE „ 1.12 1. (It''/HR )
. +•+•+•s -?-•'1 +++++++..f..f..f ++++ +a.+++.f ++ f•+++++++++++`?_++++++++++ ++++++.+++++ir-` ++++++++
PE OCESS• FROM POINT/STATION 2 . 00 TO PO IN' T /STAT ION
*. STREET FLOW TRAVEL f .1:M1 + SUBAREA. FLOW! ADDITION
UPSTREAM _I_r:VAT:CON = 1 'Jam' . 30 (FT.
DOWNSTREAM ELEVATION -- :[ ia4 . 40 (I= T K )
STREET EET LENGTH = '.r.`).`J!(FT )
CURD1,(.11t:, HEIGHT B.(1.is )
1A1.,. �, t.i: i r.f
ST'<°I:.1:T H(';Lr-i.I:I:O'TH w .n.0!:;(1-T. )
5.00
"FIJI 1 ::,100HYD.0
I: 5 q 4 :i PRINTED ON 9 ju -'E `J t`1. > ; ; 58 PAGE
DISTANCE FROM CROWN TO C:ROS SFALL GRADE BREAK = :12 . 00 (F T . )
':LOPE FROM GUTTER TO GRADE BREAK. (V/It?), = .040
SLOPE FROM GRADE CREAK TO CROWN (O/HZ = .020
HUMBER OE HALFSTREE T S CARRYING RUNOFF - 1.
DISTANCE FROM CURE, TO PROPERTY LINE = 5 e 00 (FT ., )
;LOPE FROM CURB TO PROPERTY'LINE (V/H2) = .020
GUTTER WIDTH 1.. a00(FT.:)
GUTTER HIKE FROM FLOWLINE = 1..6801 (IN . )
ESTIMATED MEAN• FLOW RATE AT MIDPUSHT OF STREET • 6.48 (CFS).
DEPTH OF FLOW I•15 , (I- i , )
AVERAGE VELOCITY = 3. 600 (FT/ ; )
STREETFLOW 1-HYDRAULICS AT MIDPOINT OF STREET TRAVEL
HAL.FSTREET FLOW WIDTH = 9.33(FT. )
FLOW VELOC:ETY _ 3 r.60 (FT/S.) IDEPTH*'VC LOC ITY
TRAVEL T l:ME•= CC: -
ADDING AREA FLOW To STREET
1.00.„ 00 YEAR COME UTErt RAINFALL INTENS ITY
DECIMAL F RACT ION SOIL•CiROUP A 1.00()
DEC : MAL. ? RACT ION SOIL GROUP 8 — .000
DECIMAL FRACTION SOIL GROUP. C• = .000 •
DECIMAL RACT IO SOIL GROUT'•0I = .000
F:'L 1:L)1 N-i J(1...(3 - Li. UU/PC )
~LS. C:UI'VE HiUMBEi •FOR SOIL(AMC 2) = .0
AD JUZ.TED SL:S CURVE HUMMER F'CiF:. AMC
F ERvIOIJS-RATIO(AF') .600 MAX LOSS RATE(FM)=
EFFECTIVE RUNOFF COEFFICIENT USED FOR AREA, (0=CIA)
SUBAF:EA RUNIOFF• _ 4.42 s(CFS) ..FOR �.,.45CC1Cn7
TOTAL RUNOFF = 0 . 1314 (CFS) TOTAL ` AREA =
AREA AVERAGED• FM VALUE = ,471.(IN/I-IR ) •
DEPTH •OF• FLOW
AVERAGE VELOC ITY _
1-1 c3 5 (F -i'
3.848(FT/S)
S T REETFL.O!'i HYDRAULICS AT ENDPOINT OF STREET TRAVEL
HALFSTREET T FLOW . WIOTH'= 10.13(FT. )
FL.O!'i.:VELOCITY = 3,6O(FT/5) OEF'TH*'VELOCITY =
,.1471(Iw/I.10
IS C .800
2;38 (AC u
r •�• r• • -r � •i- f• � - •4•'r -!' -} r ^r •f• i• �- •�• Y• -- •� � •'r �- .{_ -,• •r• •{- F •f• i �- { -k• -}� •t`- r r •:� + =r =r •v- •8• •�• -3•
• PROCESS FROM—POINT/STATION• 2.00 'ro F'oINT/STATION•
n;xr.• CONFLUENCE OF ..MINOR -STREAMS
.100..00 YEAR COMPUTED RAINFALL.. INTENSITY
• OLONG THE MAIN 'STREAM. c,l..IiMBE ' i
= L1n260- IN/Hc:
1 HE FLOW VALUES• USED FOR. THE. STREAM: 1: ARE:;
FIME OF CONCEN i RAT.ISN :M IN a.) 1.t1. S9
F.AI INFAI_.L INTENSITY - (IN. /HR/) a !L�
TOTAL.•FLOW AREA (ACRES) 2..30 •
TOTAL RUNOFF Oi=F (CFS) - AT CONF.L..UENCE POINT
!-1REA ,AVERAC T. LOSS RATE (FM)- = .471.
8.13
5.0 0
*
IIF LE. D K2:100HYi.:}. UI'1.:51.1.},i.l::I.rf:n'Trr1 ON ?)-..lt.''-i39
AREA AVERAGED "`ERVIOUS' r TIO (AP) -- • A00
PROCESS. FROM POINT/STATION. ,. 00 TO PO INT/STAT .,. N • 4.00
x t,.,.. IN :I:T IAL AREA EVALUATION a{ r. *
DECIMAL FRACTION SOIL GROUP A. _ 1.000,
DECIMAL FRAC;T I:'IN ,. fl :EL GROUP H 000
DECIMAL FRAC T ION SOIL GROUP is .000
DECIMAL. i_ 1-I At:;T'I:ON - O:EL GROUP I0-.000
F.F:`: a1:DEl~T:I:f=L(:; - 4 DU/AC)
r` (y r' .CuRvc NUMBER S O I: t_ (f-11''1 G 2)
2 1J
ADJUSTED SC i CURVE. NUMBER For AMC3 52.0
PERVIOUS. RATIO(AP) = tea() MAY LO' S RATESFI'1)-- .01(IN/HR)
SUBAREA Is RES:r.i:)C.NTIAI._y(.'i, - 4-L)li/AC), •
INITIAL SUBAREA .F.LOW LENGTH =. • 26r ,1''; '1 (FT. )
UPSTREAM ELEVATION •= 1397.n00(FT,:)
DOWNSTREAM ELEVATION ION 13 %.30 (FT. )
ELEVATION DIFFERENCE - • '1.70(FTn)
•
SLOPE
LOr'EE = O :L c11-1 - • S (/) - 1. 7. } .
c = K( 412) C(L_ENGTH'3)/(E-LEVATIO CHc:IN6E7 ''0,.2
INITIAL AREA .-TIME OF CONCENTRATION - 8 .56) MIN .
100►. 00 Y'LAir CL)MF'UTEE:t RAINFALL INTENSITY• - 11.918 IN/ilfE:
EFFECTIVE RUNOFF COEFFICIENT USED FOR TOTAL AREA
((l-e,«1.( IS C - „01
SUBAREA Rt.lNo r - ? . J158 (i FS)
TOTAL... INITIAL -STREAM AREA, - .74'(AC,,)
PERVIOUS • AREA FRACTION = .600
INITIAL. AREA. 1 iM VAL UE _ .147:1. (IN/ HO
F'R'LCE:ss FROM POINT/STATION 11.00 TO PO I.NT/STAT :EON 5.00
-4 C)Tf `=-i T FLOW TRAVEL. TIME SlJFIHr EA FLOw ADDITION
UPSTREAM AS ELEVATION = .I.n2.0(FT.)
_DOWNSTREAM ELEVATION ..- 3. zi94 F 4 ( (F T „ )
STREET LENGTH - 429. 0(FT,
STREET 1-1AI..:F'II:I"1TI-I -- ?5.00(I=T. -)
DISTANCE FROM Cr O1'N TO f.ROSSFnJ 1._ GRADE BREAK = 12 n 00 (1= T .. 7
SLOPE FROM GUTTER TO,GRADE BREAK (')/HZ) = .040
SLOPE FROM GRADE BREAK TO CROWN (U/H£.) = . 020
NUMBER OF . HALFSTREETS CARRYING RUNOFF = 1
DISTANCE FROM CURT, TO PROPERTY LINE = 5.00(FT.>
SLOPE FROM . CUI:'E TO PROPERTY LINE: (t.)/H.) _ .-070
GUTTER t.iI.DTH-! = 1-.500(FT.)
GUTTER 1 HIKE FROM FL.O'IL INE = .l.. C 0 (IN
ESTIMATED MEAN FLOW FATE ,AT MIDPOINT OF STREET = 5. 770 (CFS)
DEPTH .OF FLOW - .i 30 (F.r.L
AVERAGE VELOCITY - 3.491 (l-T/S)
:;TRETFL..Ot.I HYDRAULICS AT MIDPOINT OF STREET TRAVEL
HAi._FSTi EE:-r FLOW WIDTH ni = . " r 4:)41(F1
I._O1€ UI i._Of ITY -- .1U8 (- T /S) 8Er' T f-i4Vr:i._Or :rTY = 1.52
PAGE ,Il
llFILE'DSK2A00HYD,0UT[5LlQj�� PRINTED ON'?g-|UN-8q �13Q:1-1��7�. . PAGE ^ '
TRAVEL TIME = 7.0G MIN. T' z 10.62 MIN.'
'
<�RIDDING AREA FLONTO STREET
' ^`
! 00 .�0 YEAR''.CO .PUTED 'oAIN ` LL INTE�S`IT~ = ^ 4.377TN/HR
DECIMAL FRACTIO ,SOIL GROUP `A '= 1.000 ' '
DECIMAL FRACTION SOIL GROUp`Q = ,000
DECIMAL FRACTION SOIL GROUP C .000
DECIMAL FRACTION SOIL GROUP D = .000
P-STDEWTTA|(- - U DU/AC)
S[S CURVE NUMBER FOR SOTL(AM[ ?) = '"37.[)
ADJUSTED S[S CURVE NUMBER FOR AMC - = 57.0
PERVIOUS RATIO(AP) = ~600 MAX LOSS RATEKN)= .471(TN/HR)
EFFECTIVE RUNOFF COEFFICIENT USED FOR AREA 0z00 IS [ = .807
SUBAREATUNOFF= . ` S) FOR 1.400C.)
lOTAL RUNOFF'= ' 7330(CFS) TOTAL AREA = � 7.14(AC.)
AREA AVERAGED FM VALUE =/' .471/TN/AR\
DEPTH OF FLOW .477(k,),.
r '
AVERAGEUELOCITY
�
`
.TREETFLON HYDRAULICS AT ENDPOINT
OF. STR[ET^TRAVEL
ALF8TREET FLOW WIDTH =� 9.800. . ) '
FLOW VELOCITY = 3.48(FT/S)` DEPTH*UELOCITY
++++++++++++++++++++++++++++++++i+++++++++++++++++++++++++f++++++++++++++++
PROPESS FROM POINT/STATION 4.00 TO POINT/STATION 5.001
*** CONFLUENCE OF MINOR STREAMS
100.00.YEAR COMPUTED R `INFALL'INTENSITY � ' ` 41923 IN/AR
ALONG THE MAIN STREAM QUMBEK' 1
`
HE FLOW VALUES USED FOR THE STRE ^ 7 ARE,'
. .: ,
T''� '�~^ `^^~^~ ~`^~ '�~^ '^^ ~'^^ � � '^^^ '
TIME OF CONCENTRATION(MIN.) � l0.b� '
RAINFALL INTENSITY (T../HR/) c 4.32
-OTAL FLOW AREA (ACRES) = 2.14 '
TOTAL RUNOFF ([FS) AT CON LUENCE'POINT 7.q3'
AREA AVERAGEn LO3S,RATE / M\ = �.4-1
AREA AVERAGED PERVIOUS 'A 'IO (AP) = ' .60A -
+++++++++++++++++++++++++ t +++++++++++++++++++++++++++++++++++++++++++++++++
PROCESS FROM POINT/STATION
I G.00TO POINT/STATION ' 5= !
` *** {NTTTAL AREA EVALUATION
'
DECIMAL FRACTION SOIL GROUP A = 1.000 `
DECIMAL FRACTION SOIL, GROUP B - .000
DECIMAL FRACTION SOIL GROUP [ = .000
DECIMAL FRACTION SOIL GROUP D = .000
~ ~
RESIDENTTAL(� _ 4 DU/A[) I .
^ ` '
S~S CURVE NUMBER FOR SOIL(AM[ 7) = 32.0
ADJUSTED S[c CURVE NUMBER FOR AMC 3 = 57.0
PERVIOUS RATIO(AP) = .600'MAX LOSSRATE../r
M)=
cOBAREA IB RESIDENTIAL Q - 4 DU/AC).1 ^
.471(T# 'HR)~
II._E ASK. F . 1001- h'D 011T[ L1, 4J R-r .r.NTr o ON 9 JLN-89.:1.1:3LI 55 F'Ar_ E
IN IT:IAL. ' sUBAR'EA FLOW LENGTH 1 G't ,.01. (FT..
•URsTREAM E L.EV(tT IOC; _. 1. 8(7. 50 (FT
DOWNSTREAM ELEVATION -- . .3't '-IO (FT:
ELEVATION! OIFFERE::NCE, 2 10(F T .
SCORE - •.01.2l) C ;:/;t • 4.28. . .
I ( -- )(.( .. it i i) 1, (LENGTH ) / (EL.Ev(-1T ION [.'riANGE) J 0. 2. -
1J-! IT 1 (m.. ARE:A• TIME Of CONCENTRATION 7.575. MIN.,
:1.Qi, 00. Y AF. COMI• UTED RAINFALL L._L INTENSITY = 5.196 1N/liR
EFFECTIVE T IVE l;1JNOFF. - L OEFF :I:C IFNT - USEL FOR TOTAL AREA
',U=C:.I.f-t). I aC
•
SUBAREA RUNOFF - 1 .. 3 1 (f.:FB)
V OTAL_ IN:ITIAL :;TREt M AREA 31 ((1c.'',
PERVIOUS AREA FRACTION -- .600
INITIAL AREA FM . VALuk = 47:1. (IN/1.1F )
+ .; + ..}. -r 4- •r 4. _ 4- ?. _ - 47 = •w 4 -t• + + + + • f. 4 _1-. z -r• 4r 4-? + ++ i- . f.+ 4 , -}• a- - a,..1. y a• 4 •i• r- 4 -* .1. r,. 4• .¢.4. 4- + s_ .t. •+,,..
PROCESS FROM FO:I:NT,' ;TAT ION G . 00 TO POINT/STATION
• n; LONI 1.:.1JLi10E 1.1F ►i 1NUI"-•S Tii 'i-IMS : * ;;
•i'` * CONFUTE VAR IOUS•LONFLUENCEEI FLOW €,1AL•UES
.1.0U .. 00 YEAR COMP'UTEO RAINFALL' INTENSITY - 5.. 296 IN/HR.
•zL0N6 THE 1IA:tM STREAM NUMBER: 1.
1 HE FLOW VALUES 'USED FOR THE STREAM: 6 AR ;•
'LIME OF CONCENTRAT ION (M IN.) T 7.57
iINTENSITY (IN./HR/) 5� f
RAINFALL')
TOTAL FL.0N AREA (ACRES) = .31
TOTAL RUNOFF (CFS) AT CONFL.UENCE•POINT • 1. 6
AREA -AVERAGED AGEI::t I_.OSs RATE (Fn.' - pL17,
AREA AVERAGE1 PF_RvIOUs RATIO (AP) ..(.UI
LONFLUE.NCE INFORMAT ION:
STREAi•S RUNOFF IME INTENSITY
NUMBER (CFS) (MIN ) ('TENCH/HOUR)
8.13 10.89
7.43 ' 1.0.62
1.36 7,.57
O�-'i`• 4 {' =
���rti 1.a
+1..0004 0O04 8.1)
+ .. 9P U * 1. O O 0 �� 7.4).
• t: ;r.i
.. 16.516
OSMX (2-) —
+1 „0,I.7•t:• „97 6 8.1)
-1.000*:1. 000 7.4)
+ . ?98 1-. 0004 1.4)
.. 16.591
OSMX(3) =
+ 1. 273 * . 696* ,8.1)
+1.253* ..71.3ar ' u)
+1,.00041.000* '1..4)
15.208
RAINFALL INTENSITY
AND
TINE
4.260
4.323
5.296
OF CONCENTRATION
usi:ri FOR STREAHss
IIF .' i! r ,1 00H ALITw4]. .]rr:o QN •19-.w4 -8? 11 5.
PAGE
INDIVIDUAL... STREAM FLOW VALUES ARE`
8.13 7 . I.#.'xj 1.36
6
POSSIBLECOiNELUI:::NCED FI_.OW VALUES ARC,
IG.5.. i.t .59 .I.5.2
INDIVIDUAL STREAM AREA VALUES ARC
EFFECTIVE TOTAL AREA VALUES ARC, f.
COMPUTED CONFLUENCE ESTIMATES ARE::
I U;=O(r(CFS)I.( „59 TImE(ti.l'N.) =40,;is :i
EFFECTIVE AREA AS ADJUSTED FOR TIME (ACRES)
TOTAL MAIN STREAM 'STUDY AREA (ACRES) = 4.24
TOTAL STUDY AREA AVERAGE PERVIOUS AREA FRACTION(AP)
TOTAL_ STUDY AREA 'AVERAGE SOIL LOC'S RATE(FM) - 471
4.79
.600
+ + } .4 + + 4• + -4- 4- 4.- 1-.t..4..4..4..4..4 + 4. t •4- •4• •4 -•4• f• -4- -4..4- + -1..4- .}. - + + 4.. .4..4..4..4..+..4 .4..}..4 + y .}..}..4_ - 4. •4- 4 •1- •4- { •4- •+- ' .i.. + +- 4. 4. s_ + +
PROCESS FROM POINT/STATION . Ou TO POINT/STATION •! , 00
,`** STREET FL.ON `-1WW[ L•I iMC + SUBAREA •F }..IJW ADDITION yAH,
UPSTREAM ELEVATION = .I.38'• R'40 (F T )
DOWNSTREAM ELEVATION - r}1. C1'�,,75(F.)
STREET LENGTH i 1I .I.2l .5B(FT.
CURB :' HEIGHT C1 . K IN
STREET Hr,!r=Wr.DT.H = 75.0o(FT.)
DISTANCE FROM CROWN TO CROSSFALL GRADE BREAK,, •- 1 ' ,, 00 (FT . )
SLOPE'FROM GUTTER TO GRADEBREAK (U/H7) = 040
SLOPE FROM GRADE BREAK O ! I<pi,lP! (V/1'1 ) ._ .020
NUMBER OF HALFSTREETS CARRYING ING RUNOFF = 2 '
DISTANCE FROM CURE: TO PROPERTY LINE = 5 .00.( T ,. )
BLO(='E FROM CURB TO PROPERTY LINE .(1/II/) =0
GUTTER WIDTH 7 .S00(F-T.,)
GUTTER HIKE FROM Ft..OWL INE = .1. . 680 (It`! . )
EsT IFiAT1 rl MEAN FLOW RATE. AT FI ]1Or'01F1T OF STREET 1..7 . £29 (L:F S )
DEPTH OF FLOW! ` .605(FT.)
AVERAGE VELOCITY .l_. U)7 (FT/S)
ST!" EETF LOV HYDRAULICS AT MIDPOINT OF STREET TRAVEL
1-1AL rST.;EET FLOW! WIDTH = 13.25(FT.)
FLOW VELOCITY = 2..'17 (FT/S)- , DEPTH*IJELOC ITY = 1.. 50 ,
TRAVEL_ TIME - .86 MIN. IC = 11.48 MIN.
ioo:1:NG AREA FL011 To STREET
1.00.00 YEAR COME UT EO RAINFALL INTENSITY 4 .1.'6 IN/HR •
I.)EC I:1°LAL FRACT ION SOIL- GROUP. 0.7 1.000 •
L!EC 1'IIAL...FRA.LT 1:011 SB II..••GRoup I-1 = .000
IJ EC IMAL. }FACT I:ON SOIL GROUP C = .000
.DECIMAL FRACTION ACT ION 4o :I L GRnur' }) - ' 0
`L ES1:1)F 'TJOL.C3
SCE L;LIRVE l~!UMBER Fort '= O TL (AMC = • ,,2 „0
ADJUSTED SL:S CURVE HUMBER. FORAMC ;
PERVIOUS RAT Io(AP) -- A00 MAx• LOSS RATiw(l=1) =
EFFECTIVE RUNOFF LoErr' C:IE_N'r 1s.^,Cr4• 'r oR AF'E'A (07C1.A) IS G .805
.471(IN/HR)
PAGE D':'!(2::I00HYD.:.-UL1_51�ro4r] PRr!'!rErb•LP: 29—Ji►uN-8;J 1t.;,`5: 0
1
SUBAREA EI RUNOFF. ':�51. (CFI;) FOR .4.3 (AC..) '
f oTAL. RUNOFF = a.7 1'�7(C F•C) TOTAL AREA =
AREA...AVERAGED D! I" ('I V(' LUE. . tlf 1 (1N/i-lR )
DEPTH.OF FLOW - 603(FTu
=
AVERAGE VELOCITY2.'468(FT/ 9)
aT <`! ETFLOU HYDRAULICS AT JENDPOINT Or STREET TRAVEL
F1(-1LF"CTF'FrT FI_.Ow WIDTH = 1. .:i... (FT .: )
:FLOW VELOCITY 2.U/ (1=T/ )-Drr'T•I.1icVEL:.00ITY = 1 .49
5.2:1.(AC.)
•..i. + .4. 4 ,_ .4.. _ .4. ,4..4..4..4..s..4..4. f• a• -?' 4 •?- •U •?- {- 4..¢..}. 4 x..} ? .a.., _ + + 5 t a..{..± - 4. 4- 4- .a.. + ?- 4. 44 ± 4..4 + .F •¢• 4 1- •i • .i.+ +
I='F:'OCL-`S FROM POINT/STATION. ' 5400 TO F'o rNT/STAT T.ON 7.00
'?-4,.* :CONFLUENCE OF MINOR 5'1 I'1,:F?iYi u•**
'. 1.00 00 YEAR, C OHPUTEO RAINFALL 4TENS ITY = 11..!. ?1:, N�I!T
•r�iL .�r '' -i 1-!i:: i�'i 4 i.l,! �; fi� F.Atl Ni.lMBFR R
I
i ,-Ir ='I...01! VALUES USED FOf : THE STREAM . 1 AF'F
1 I!•TE•(:?F ('ONCE NTRA'T ION (MIN n) =. 11 „'lf .
RAINFALL NTENS I1-Y '(:(!`3. /}•I c'/) = 4.13
IOTA;-. OW FL -AREA (ACRES)=5.21.
II O � AL. RUNOFF - (CFS) AT CONFLUENCE POINT = 1?., 14
:AREA AVI_.r:A(:�FCE, I..:OS RATi '([ ) _ =471
AREA AVERAGED PERVIOUS- RATIO' (AP) _ ;GOO
• .t- •i...t- .4 4- 4..}..4 . ?..4• •?- t t .}..4• .{-4-1- .4• .}..}..4..4..4 :y..}..?.. ;: 4-4- .4..} 4 .}..}. 4- .4..4. 4..4.. f. r .?...n..f + .s..f + + + + i..¢. + ++•r p 4. + .i..}.+ + ;.. + .1- 4- `.. ?. 4. + •{ 4-
I.-
F'ROCESS F Oii F'O INT/ST A T ION Z0. 00 TO POINT/STATION
�;: ;., }C)
* . II IT J:AL AREA EVALUATION �t.
I
DECIMAL IT CT .TON So EL GROUT' A 7 1 ; 00(?
DECIMAL FRACTION SOIL GROUP' FL = .000
•Dr'' IMAL•F r'ACT• IOP•d SOIL GROUP'. C = .000
I DECIMAL FRACTION SOIL. 0; our L)• — ;)OIJ'
UNDEVELOPED. (AVERAGE COVET) SUBARc.r't
SES CURVE NUMBER. FOR COIL (1 f I. 2) - 50 . (? •
• ADJUSTED ED r)C` CURVE NUMBER:FOR AIIC•5 3 C- . t70...0
7� f
•
, PERVIOUS' R I" IO Ai"') = 1.000 •PIAX 1. OSS I'.`A l E.. KF M ).� .. ..� 1:2(_�1�.L't')
SUBAREA IS UNDEVELOPED AVERAGE. COVER
INITIAL. AL. SL;Pf..1 EA• FLOW LENGTH -- 3.5 50.00 (FT„).
' UPSTREAM' .ELEVATION = I4110.00(FT'
0OWNS-E I:E_AM EELSVA'T'IOM = 1'.1.00.00(1•T. )•
ELEVATION 0 fF"FEREN(:;E. - - 110.0.0(F•T.)
Tc 7. .K(....-)0.6)*I. (L.E.NG E eA,)1 EL..EVAT ION i. HANGE) r0 .2
INTT:r,AI... AREA''.TIME OF CONCENTRATION =• 27.707 MIN. •
-:I 00. 00 YEAR COMPUTED RAINFALL. IN'TENS ITY = 2 . LIB 2 1 (/Ur.
II
EFFECTIVE. RUNOFF COE.FF IC TENT USE".D FOR TOTAL AREA
(07CIAY -IS C .703
`w_
UL:AL;'EA•F`UNOFF (.; = 31..�J(CFS)
I I OTAL INITIAL STREAM AREA = :I.8 .: 51(AC :,
l+'rr ' ous AREA FRACTION = 1.000
'INITIAL AREA 1 C1. VALUE -- . .532 (IN/Fir; )
^ .
FILE DSK2:|00HYD.~. OUT[5U,4l PRINTED ON ?q-]UN-8q 11:35148 PAGE 8 ^ '
'
-'
++++++++++4+++++++++++++++++++++++++++++++++++++++I++++++++++++++f+++++++++
PROCESS FROM POINT/STATION ` 8.00 TO POINT/STATION 9.00
. *** c-'EE- FLOW TRAVEL TINE + SUBAREA FLOW ADDITION ***
�PSTREAMELEVATION = 1396.00(FT.)
DOWNSTREAM ELEVATION = `1
391.02(FT.)
STREET LENGTH 351.5q(FT.}
^ ' .
CnRD HEr-
'HT - A.(TN.)
STREET HANIDTH = 41.00(FT.).
DISTANCERom CROWN
TO ��ROSSFALL �RADE AR'AK `= 18.00(FT.)
SLOPE FPO^ GUTTER TO GRADE BREAK (U/A7) =^ .040 �
SLOPE FROM GRADE BREAK TO CROON (U/A�) =`� ^020
NUMBER � OF �AALFSTREET- CARRYING RUNOFF 7
'DISTANCEFROM'CURB TO PROPERTY LINE = 15.000T.) `
LOPE FROM CURB TO PROPERTY LINE (U/A-) .070 `
GUTTER WIDTH = 13000T.\
GUTTER HIKE FROM FLONLZNE = 1"6800N.) '
ESTIMATED MEAN FLOW RATE AT MIDPOINT
OF STREET = 31.900FS)
DEPTH OF FLOW = '.579( T~)' '
AVERAGE VELOCITY 5.0410T/S)
TREETFLON HYDRAULICS AT MIDPOINT OF STREET. TRAVEL
HALFSTREET FLOW WIDTH = 17.470T.\
,FLOW VELOCITY = ` 5,04(FT/5) ` DEPTH*UELOCITY = 2.92 '
TRAVEL� IME'= ` 1.16 MIN. TC= 78.07 MIN.
ADDING AREA FLOW TO STREET.
`
10000 YEAR COMPUTED RAINFALL INTENSITY = 1.373
TN/HR
`DECIMAL FRACTION KIL GROUP A = 1.000 '
DECIMAL FRACTION SOIL GROUP A - �.000 '
DECIMAL FRACTION SOIL GROUP P = .000
`DECIMAL FRACTION SOIL GROUP O = .000
RE'TDEW-TA|0 — u DU/AC) `
` SCS CURVE NUMBER FOR SOIL(AM[ ?) = 32,0 '^ `
ADJUSTED S�� CURVE NUMBER FOR AMC- = -� ^ `
ERVIOUS'R~~I~(A�) = .60()''AX''L~S~ RAT~^�`>= / .471(TN/HR)
THE AREA ADDED TO THE
EXISTING STREAM CAUSES A
A LONER FLOW RATE OF D = 31~730([ S)
THEREFORE THE UPSTREAM FLOW RATE OF O = 31.659
'CFS) �
IS BRING USED! `
EF ECTIVEJUNOFF COEFFICIENT USED FOR AREA ( = A) JS [ = .698
5UBAREA RUNOFF,= .000<CFS\ FOR .33(ACa) `
rOTALRUNOFF = �1` A�o(���)� TOTAL AREA
~r~ ^�`~ - - '
, �
AREA AVERAGED FM VALUE = � . 531 (TN/..R)
DEPTH OF FLOW `.577(0.) ` '
AVERAGE UELOCTTY.= 5.076(FT/5)
STREETFLDN HYDRAULICS AT ENDPOINT OF STREET TRAVEL
ALPS REET FLOW WIDTH = 1.q3(FT.)
'^'cLDN'UELOCITy = 5.04(FT/S) DEPTH*UELOCITY = ^7.91 '
'
__��.;1(:_�1 = i 1 �_U �.1I�.II RIB r N—a) 3 :)i P
I� �:I...E tit 1-�'f :� n .sTI� ., , . -,:l r�, �I �•r-.-..r.: O�1 r_'3—a) :l.I. , w�ta.:,- � AGE
PROCESS .FROM PO:[Nr/STAT IOi`.1 9. 00 TCl POINT/ STAT ION
• STREET FLOW Tf AOEL- -TIME + SUBAREA •F1.01:.1 ADDITION
?.00
4a(•*
UpS1',;:E:A 1 ELEVATION = 1.391. u02_(IFfit ,
DOWNSTREAM ELEVATION = 1.303.?5(FT..`>
STREET LENGTH = Z30 7U(" T )
CURE HEIGHT— f3 (Irl .
STREET HALFW I0TH = 41..00 (FT � )
DISTANCE Fr'or,•C.ROWN TO. i,F'OOSFALL GRADE BREAK = 10. 00 (FT o )
..:�L.OF'E FROM •GUTTER• TLl.GRADE' BREAK (U/H ) = ROL0
SLOPE: -FROM GRADE BREAK TO:CROWN (0/H/) .020 •
NUMBER OF I-IALFETr'r-.:r-_"TS CARRYING -RUNOFF = 2.•
.DISTANCE FROM CURE TO 'PROPERTY LINE
SLOPE FROM CURB TO •Pr'OF'LFTY LINE (U/I••I?;>- _ .020•
CLUTTER WIDTH = I 00(FT.
GUTTER HIKE FROii ,F'L OWL.:i:1,1r:: •= t . E du (:1:N„ )
ESTIMATED MEAN FLOW RATE AT MIDPOINT OF STREET = 31.925 (CFS)
DEPTH riF FLOW = . 502(FT,.)
AVERAGE RA:GE VELOCITY = LI., /(I• T/ )
ST{:FETFL OW I•IYORAIJL ICS AT. M IC: '0If T OF STREET TRAVEL
HALF`LTF'EET FLoH WIDTH - :1.?,.`71! (FT u )
FLOW VELOCITY .._ u .. C)C; (1= T/ S) DEPTH*UELOc I:Ty = 2.90
IRAVEI.. TIME = 1.. 10 MIN. TC = 29.97 MIN;;
ADDING AREA F 1...01! To STREET
1.00 00 YEAR COMPUTED RAINFALL INTENSITY = 2 ., 3 20 IN/HR
DEC I:1••1AL. FRACTION SOIL_ GROUP A 1.000.
DECIMAL FRACTION SOIL •GROUP 0 = .000
DECIMAL FRACTION SOIL -GROUP C -. .000
DECIMAL FRACTION SOIL GROUP D = .000
RE S IDE.N T IAL (, — LI DU/AC)
SCS CURVE NUMBER FORO IL (AMC 2) = 32.0
ADJUSTED SCS CURVE NUNbEr FOR AMC 3 = 52..0
PERVIOUS RAT I:O(AP)' = .600 MAY LOSE RATE (FM)= , q71. (Im/II -:')
THE AREA ADDED TO THE EXISTING STREAM CAUSES A
A LOWER FLOW RATE OF LI = 30..G6I (CFS)
THEREFORE THE UPSTREAM FLOW! RATE OF 0 = 1: n 659(CFS)
IS Les E I .i o U .a 1I: D
EFFECTIVE RUNOFF COEFFICIENT USED FOR AREA (U=C.IA) IS C = .693
SUBAREA RUNOFF: •= no00(CFS) ` FOR e5?(AC..
O T AL RUNOFF' = .f. aC�S`)(i:1::c,) TOTAL AREA _. 1.9).1. (AC, )
AREA AVERAGED FM VALUE = ` 30 (l.r,/I..1r,)
DEPTH OF FLOW — . iB0 (1 T . ).
AVERAGE VELOCITY LIa969(FT/S)
3TREE 1._01l H`r rir'AW1._ ICS AT Li'!DP1l IHT O1 STREET TRAVEL..
HAL.r ;1 REL.T • FLOW W Ir'Tu•= 1.2 � `,50 (FT . )
!LOW UE1...00 I T Y = • 11 .. 98 (F T/S) DErTH*UELOCI.TY = 2 . S91.
++.t..r.+.4..(...4 ++ ++++ i..i +•4.4• 4--f-++•4• 4-++++++.4.+.4.4 .4..4..4..;.,.4•4•-4•4•+7.+ 4.+++.{.1-.i- 4--4•+.4 4-+++i
PROCESS FROM POINT/STATION 9.00 TO POINT/STATION :'. 00
L) SL .1.0OH r) R 0i:4T f544:i PRINTED r.-_r.E ON r c—Jt.!N--0::' 1.17 36 a 2 S'. 10.0
1
CO NF L.UE NC'' O MINOR STREAMS
Y *. 'COMPUTE VARIOUS CONF1...UENCEO. FLOW VALUES • ¢'`;
1.()0.00 •t'I Ai COMPUTI:::L! I=:(-17i�:f : I_.i_ INTENSITY 2.320 1.N'h
ALONG -THE MAIN •S RE:«ci NLUMBiE.R1. •
THE FLOW VALUES USED. FOR:THE STREAM;: 2 A;:`E
T IME: OF CONCE.N!TRAT•ION(%SIN.) 29.92 •
RAINFALL i sir ^3
10T(i... FI...OS•i (-11cEf ((rrES)•= 19.16
TOTAL RUNOFF (C1= C) AT CONFLUENCE POINT
AREA AVERAGED LOSS i� ~ �� T I:"•( ; i= �' i) = .530
ARito AVEl{:t-IGEI:i F`EliV TDUS RATIO. (AP) •= v 987
CONFLUENCE INFORMATION:
•8TREA RUNOFF TIME INTENSITY
NUMBER - (CFI;) (i,IN„). (INCH/HOLIR)
1.66
1 1.7.14 11.40 4.176
PSMX (1) .
A.1.. 0004 1 .0t00* 17.1)
4. 2 ., 0 O ,.a (.i 3* ,J )
41.509
0SMY(2) ...
. 5 )6•;c• 1:. 00f),`; 17.1)
-S 1 .000'ac :1. u00 *. 31.2)
40,-332
RAINFALL AL.L. INTENSITY AND TIME OF CONCENTRATION
USED FOR ) STREAMS
INDIVIDUAL STREAM FLOW VALUES ARE:::
17.14 31.66
PD SS IE LE CONFI..UENCED FLOW VALUES A sE
14 :1 . .1 1. L4 0 ., 37,
INDIVIDUAL STREAM AREA VALUES ARE :
5.21 19.16
EFFECTIVE I0TAL. AREA VALUES AE:E ;
COMPUTED CONFLUENCE ESTIMATES ARE
1°UNO F(CFS) = 41.51 TIME(Mn ) = 11.1.485
EFFECTIVE AREA AS ADJUSTED D FOR TIME (!ACRES) =
_l OTAL MAIN STREAM 'STUDY AREA (ACRES) = ' 24.37
1L..5.,
j.OTAi._ STUDY AREA .AVERAGE PERVIOUS AREA FRACTION AP) =
TOTAL STUDY AREA AVERAGE SOIL LOSS RATE(PM) = .518
.�. + .F..}. �. ?..{• -} �. }..�..i. -P• • f• i- •� .�f. �..�. • f• -}. • f• .{• � �r .[...�..a. }. i•- •?- y..4• �- •�. •r •�..�• •r r ••S• .�• •'r -1• .�..{..�. r,..t. -'r •�• =r •�- •?- ^- i- �r •i-'- _`• 5- .:- .}. f •?• -4• •i• ^E• •t• •�• �.. � -f• •i• i.
r orr' t Rca�! 4-`o 3:'NT/STAT :CON' 7.00 TO 'POINT/STATION 10.00
** T BEET FLOW TRAVEL. TIME .+ SUBAREA FL.04,4.. AOD I T TC'N -x4*
UPSTREAM ELEVATION = 138•3.; 5(f T )
DOWNSTREAM ..ELEVATION •=• ,Ht341.:1.5(FT,
STREET I...ENGTii= 1136•16(( T „ )
' -
EO7q-]UN-�� �^.-
l PRINT
FURB EIGHT
-TREET AALPNIDTH = 4|.00(1-T.)
DISTANCE FROM /[RONN TO`[nOSSFALL GRADE BREAK = ^A`00(cT.)`
LOPE FROM' UTTER TO'GRADE AREAK U/H7\ = .'40 '
SLOPE FRO��R
M��KADEEAK TO[ROHN (U/H/> = .020 '
UUMBER O F AALFSTREETS CARRYING QUNOFF = / �
- DISTANCE FROM CURB TO PROPERTY �INE =' 15.00(FT.)
SLOPE FROM CURBTO PROPER LINE (U/H7) = .078 `
GUTTER WIDTH = 1 �00(�T \ '
~ /, ^ ^~ ` ' ^ '
GUTTER HIKE FROM FLONLINE. 0(TN.) .
rL.. STIMIAT'ED MEAN FLOW RATEAT UPON'! OF.STREET c
DEPTH OF FLOW IG47.(JT')
AVERAGE\]ELOCITY 5.100(FT/S) '
q1,73 4 ( C F S)
�TREETFLON AvDRAULICS A T MTDPOTWT OF STREETTRAV�L
HALFSTREET FLON QIDTH = 11-1.19(F )
FLON UEL�CITY � 5.11(�T/b) '_ �EPTH*UELOCITY �� �.�1
�RAVEL TIME/= .UU MIN. TC = 11.g3 MIN.
'
�DDINGAREA FLON TO STREET �
`
1.00 [AR COMPUTED RAINFALL TN/1-1R
UECIMAL FRACTION SOIL ~ROUP A = 1.000
DEC IM'i F R ACT ION' SO IL 'GRour, A = . 000
'
ECIMAL �RACTION �50IL GROUP C /= .000
1)ECI MAL I-RACTION SOIL'GROUP D = .'000
�EF) W`TN (3 - U DU/AC` � S[S [URVE NUMBER' FOR Son(AMC ?) -2.0' .
ADJUSTED S[S CURVE NUMBER, FOR AMC - = '57'0
PERVIOUS RA'TIO(AP) = .^00 M� ..LOGG RATE (cm)= .471(-N/HR)
THE AREA ADDED TO T - EXISTING STREAM CAUSES A ' .
A LONER FLOW RATE OF O = 40 . 145 ([FS)
THEREFORE THE UPSTREAM FLOW RATE OF QU1.50q(CFS>
IS BEING USED. / -
�F-ECTIVE RUNOFF COEFFICIENT USED FOR AREA 'O=[TA\ IS C = '.7�U
cUBAREA RUNOFF .000([FS) FOR .1U'0C.)
OTAL RUNOFF = 4�.50q(CFS) ' OTAL AREA
�REA AVERAGED I'M VALUE = .517(1N/AR\
EPTH OF FLON =
RVERAGE UELOCITY = `
5,098/cT/�)
`�TREETFLON A�D�AULICS AT N p�-NT OF STREET TRAVEL .
' - �1
HALFSTREET FLON QIDTH = }4.^6(FT.)
+
FLON VELOCITY = 5. }\ (I: Si T/DEPTH-)(-VELOCITY "I�'a0
-
'
P`GE \|
+t+++++++++++++++++++++++++f+++++++++++++++++++++++++++++++++++++++++++++++
PROCE S F ROM POIN TA'TiON 10.00 TO OINT/STATION |4.00
***_PTp�FiDQ TTM[� (U��� �pE~TFTED �T7�\
LJPs*T*F,.'EAM POINT ELEVATION J..15/FT.}
DOWNSTREAM `POINT ELEVATION = 1379,50(FT.) '
FLOK LENGTH � = 12.08(FT.) ` riANNINGS W = .0i� `
io, c, F PIpES = 1 R c-QUIREDPIPE FLOH 41.509(C ": S
IL..E DSI` '2.:100HYI1 n UTC54 A::l PRINTED ON 29—JuN-89 11:37:03 PAGE 12
61VEN PIPE IZE = 4 00 (:i N ,.:�•
:CALCULATED I NDI€,€ T.l1UAL. .• I' IFE FLOW' = 4:1 509(C.FS)
NORMAL FL..oW DEPTH :r p IPE =
FLOW TOP WIDTH INSIDE, PIPE _ 21LOVIN..)
VELOCITY 2G G4 (F T/ )
TRAVEL L TIME .01 MIN. TC 1:1 94 MIN.
+ _ t .t .A. J i- q _ Jr. .,. • ;• 1 :.1... - _�. -r .A. - 4 .a. 4_ ..! + + + ti - .n..7. G . s .4 .r.. J_ Kw J •t- : 3• .L . �. ,
•i• � _ r - •i- �r, r • •i }. %' •r -. •f• - •{- •f- •�• %• •'r• i' Y 'f �' T �. � `'. •s 'r •;•• -€• r •d• r •, �- a. _,. �•
• F'RocE .,s FROM F'0INT/ aT , ION 114.00 •TO F'o INT/S TA T ION 11.00. •
yc'�f "•Rt=iF'L70II:►fli._/REC..I CHANNEL TRAVEL TIME
URSTI'IE:i M P IN T ELEVATION _ 79„ S0 (FT. )
DowNSTRE tM Po ]:NT ELEVAT ION = 1:3711..16 (F T
CHANNEL.. LENGTH THF'LI SUBARE '; -• 2 70.00 (F T•
CHANNEL -BASE WIDTH ' 20.000 (FT..) -
•:: LOPE OR ' 1: 3 OF •LEFT CHANNEL.. BANK _• .250I.
SLOPE OR 2 L' OF• RIGHT . CHAt• NEL DANK •_ '.250
hANNIN0S °.N" = 0 : MAXIMUM DEPTH OF CHANNEL
FLOW(0) THRU SUE,AREA I.11..509(CFS)
TRAVEL. TIME = 1 . I.(t1. MIN.. TC 7. 13.38 1 IN ,.
DEPTH of FLOW . 474 (F T ) •
OVERAGE VELOCITY 3.1.I./(FT/S) •
• CHANNEL: FLOW TOP WIDTH =• 28 .23? (FT .
2.500,FT.)
1 J•. -1..j. '�' 'Jt..S" '{'.-1•'�..�..i..lr..¢. «L R. J,.. L .A. '+..3. "E' 'J�' 'Ir Ji' '�' .�.. � -i• .S• J,. -:..}. -:• •�• .�c. •¢ �� .:..s. -;- •�• .}• .�• •:.. � •t• �- ar• •}• ,�• z•-F..{..t..}. -i- •}• �. •i• . � �...t..}...�..}..�..M •i- •:. c..}..y..;.
PROCESS FROM F'O I:NT/STAT ION 1.1 . 0() TO POINT/STATION 12A0
:** . Y1:F'1! 1..0W 1-IME. (USER SPECIFIED SIZE) . jf*
UPSTREAM POINT ELEVATION = 1.378.16(FT.)
DOWNSTREAM POINT ELEVATION, = i. 74 .. 00 (F.T:. )
.FLOW LENGTH . 45 j 00 (FT .) MANN INOS N = 01
No. DF r IRE:S = 1 b Eou IREo PIPE FLow = 41 . S09 (CF S)
G ItJri`': F':%F;E cr?.:GE ... t0 00 (1'N.,. )
CALCULATED INDiIVIDUAI... PIPE FLOW = 41.509(CFS)
NORMAL FLOW DEP'TN IN PIRE = r 1.16 (IN . )
- FLOW T•l F WIDTH INSIDE PI1 E = 3 i . LtI; (1.N .-.)
OELOCT.TY = '9.61.(FT/S)
1RAVEL TIME - TC = 14.1.7 MIN.
.x...s..;•.T4 {'+✓ ++4-^:-.1-4_r4,4,+++ + .;..; + .z +ter +a,..}...i.+++•-t-t4-.r.^ ++•§ ++-+.x +.3 r._.f.•{•..f..r+.5. ++++7 +.f.%.+.a.
PROS Los FROM POINT/STATION 11.-.00 TO POINT/STATION. 12.00
• N
4,* CONFLUENCE 10E OFMAIN STREAMS ,t x
FOLLOW 1 NO DATA. INS :f.DE•MAIN STREAM ARE CALCULATED
100.00 YEAR COMP'UTEO RA INFALL INTENSITY
•1 HE FLOW 'VALUES USED FOR THE STREAM: 1 ARE:
I• IME OF CONC ENTRAT TON (MIN.) = 1.-4.1.7
RAINFALL INTENSITY (IN./HR/) = 3.64
TOTAL FLOW AREA (ACRES) = 12.69
1 O T AL I UNOFF' (CFS) AT CONFLUENCE F`OINT =
AREA Vr OEr! OSS RATE (FM) = 7
AREA AVERAGED PERVIOUS RATIO (AF') = ..90:1.
• :3:.637 IN/HR
41.51
IIFI r.:K7: 0 Yf ""!1 I.! .PRINTED j� N _BY q :37• ' � �}
:i: !._ ��• ,1 , � . � 1:� 1-11 t.J , C.1 1 I I..:i v , ..i I' T. 1: i�•'T ,� r, O � ! t �- ..i l.! i 4 a ,, i � ., n :�::� � ' A t.i %�•1S
PROGRAM IS. MOH START ItKG WITH' MAIN STREAM NO. 2
S. 1- 4 .{. + a..h.+ .i. -1- r { x-4.+ rr . 4. 4 • •..{- •4• 4- •k + a + + + .r + -r i..}. 4..}. }. .+.}4 J_ { -F •4• 4- - 4.4 -1- 4- $ ++ + 47 4- t + + 4.
PROCESS FROM POINT/STATION •• 310 TO POINT/STAT ION 1:.00
I�\! T ! .I (�1- (i1�1 r�! �1AL::11t1 i:C)1l•
_�. _ ..___-._ _._- _- -`_-. tl.*3e. �.._
1
1
' -3 •4•+4-+ 4-1 1- { 3 1 ++-1-+-4•+++� 4.7+ i-.{_..}..}.+.4.•4• 1-•4• .i•+.t +-4•+ 4-•?- {-±•++±+ {-4.+ 1-++±++++ 4-.g.1-+++++ 1- --: +i-•4-
13 1'F'OC C'., FROM. POINT/STATION :I .00 TO F'O IN T/STATION .0O
•.,�'.,L* CON1 L J; MCE. D M TNOR STREAMS *1: *
100.00 YEAR COMPUTEO RAINFALL INTENSITY
.1. ALONG. THE MAIN STREAM NUMBER,• 2 -
THE. FLOW VALUES USED FOR THE STREAM: 1 ARE
,TIME OF CONCEN!TRATION(MIli.) =• 27.26 •
RAINFALL. INTENSITY- (IN .. / HR/) 2 .4G
TOTAL. • FL..OW . AREA (ACRES) - 12.92 •
TOTAL RUNOFF (C1-S) AT CONFLUENCE POINT. -• 22. 8
' AREA- AVERAGED LOSS RATE (FM) 5 2 -
(REA•AVf RAGED PEF'V IOUS• RATIO (AP) = 1 .000
' 4..{...4..r-.}-+±.1-+ i-+-i.+.1.. 4-4-4-±a-1-+-1- ..1_+ ^.; %+-r4 :_±h..x..}.++� 4-1.a. 1--4•+++++++ i•+++4
PROCESS. FROM, POINT/STATION 1 .00 TO' Po lNT/STAT IOC!
DECIMAL. Fig ACT ION _ SO 11._ GROUP A '_ 1. 000
DECIMAL FRACTION. :,OIL>'tiROUF
DECIMAL. FRACTION. ACT ION. SOIL GROUP C = .000
DECIMAL -FRACTION SOIL GROUP' 1)•= .000
UNDEVELOPED (AUER'AGE COVER) SUBAREA
SCS CURVE NUMBER. FOR SOTL(Ai C 2) _ 50„0
AD:DJUSTED CCS •CURVE NUMBER FOR 0MC•3 = -70,.0
DERV I0L!S. RATIO (AP) - . 1 000 MAX LOSS RATE(FM)7
SUBAREA IS UNDEVELOPED:- AVERAGE CODER •
INITIAL SUSAF'E A FLOW LENGTH - • 1400. 0.0 (FT . )
UPS THE ii ELEVATION 1410.00 (FT . )
IJOWN!ST'EAM ELEVATION = 1.378.00(FT.)
ELEVATION DIFFERENCE.= - 32.00(FT. )
SLOPE .0128E S(I') _
rC- ' I({-_. 70G)a+i 'LENGTH'u)/(ELEVATIOU•CHANGE).)"0.2.
i IT IAL A EA TIME OF CONCENTRATION = 27.255 MIN ,,
100. 00•YEAR - COMPUTED RAINFALL. INTENSITY •= ' . !-4
EFFECTIVE RUNOFF COEFFICIENT USER.FOR TOTAL AREA
(0=CIA) IS C = 70
SUBAREA RUNOFF -= :22 .;;77(CFS)•
TOTAL .INITIAL STREAM•AF:EA .12 92(AC.)
F' ERV :t.oU , - AREA FRACTION-7 :1 .000
INITIAL AREA FM VALUE _ . `, 2 (TN/I-IR )
*4..* INITIAL PREA. EVALUATION
t
DECIMAL.• FRACTION SOIL GROUP - A 7 1.000
DECIMAL .1- RACT ION• SOIL GROUP (B
DECIMAL_ ' FRACT IOC! SOIL GROUP L, .000
.DECIMAL -FRACTION SOIL.GROUP D - . 000
RE:E :DENT TAL(3 - 4 DU/AC:) -
G
2 . �•45G IN/I-II
13.00
IlhILE 0 1 <.. „ _ 0c0H D 01.1 i E 7 , .PRINTED ON. 2 —Our•!-39 1].:3r : 4 2 PAGE 14.
SCS LUF'VE. HUMBER FC)R•SOII_(AMC 2)
ADJUSTEDSCS CURVE•NU1BER FOR AMC 3 = 52„0
PERVIOUS RATIO(AR) -- ..600 MAX C..OSS R :TE(FM)= 471(IN/I-1R)
SUBAREA- Is RESIDENTIAL (>, — 1 OU/HL:)
INITIAL•SUE,ARE( FLOW LENGTH = 1120.00(FT.)
{ IPST as. 'r E r
.:rM�F<:�.�,Ei c.l_..�.1F•)I I.C)"�l - �.�t�2a���1-T,) •
LO!•i "'1F'EAi'i - I_LEVAT .1.0N = 1..,/E . 00 (1- 1 . )
1' LEVATICN D:I:FFERENCE = - L,:1O(F T,)
SLOPE - • „00952 S(%) .95
-. K (• ,41?;-}fl: (;...r:Nrlll ;)f(1=:I..:EVATIaN CHANml )11 '0o
NIT ].AL ARE('. T Ii E•OF CONCENTPAT ]:oN =• 11.207 MIN.
1.00 . 00 YEAR COMPUTED RA`;INFALL INTENSITY 4 o0?IN/HR
EFFECT _J� tltC"F,COEFFICIENT USED FOR TOTAL AREA
(O=►CIA) I1 C — .29
SUBAREA RUNOFF ' 1+.253(C;FS)
f OTAL :INITIAL STREAM AREA— A9(AC.)
4='ERV IOUs rARE:A FRACTION ION = • .600..
INITIAL AREA FM VALUE _ ..471-( £N/HR)
1
1
:..;...x..s.;..i .T..t...}..}..;...}• .}..}. •8..�..L .{. -¢ .s- .T • f• -� •F• •F •F .}• •f• �c. •�• -{: •F •}. •4• .f• •}. •{. •{. •4• .�• •a..�. •}. •t• •f• •}• •{„ �• .i• • f• •}. •}• •#• •!- •'r• •#- -4- •{- .r :s. r..{..{..¢. �- .�..L .} a,. •s •t- •!- .}• •r .�r
PROCESS FROM POINT/STATION 16„00 TO POINT/STATION 13.00
rxn. CONFLUENCE OF MINOR STREAMS
}: COMPUTE VAR I01.1S CONFLUENCEC'•FLOW VALUE
1.00,.00 •YEAR COMF'UTEE RA]:NFAL.L INTENSITY
ALONG •THE . MA EH STREAM NUMEIER : 2
THE FLOW VALUES USED FOR THE STREAM: 2 ARE
TIME •OF CONCT NTRATION(MIN..), = 11.21.
RAINFALL INTENSITY (.T.N„ /HR/) = MO
08
IOTA!_. FLOW AREA (ACRES). =•
TOTAL. RUNOFF • (CFS) ..AT . CONFLUENCE• POINT.
AREA AVERAGED LOSS RATE (FM) = .421
AREA AVERAGED PERVIOUS• RATIO (Al') - .600
CONFLUENCE IN= ORMAT IOC
STREAM RUNOFF RIME INTENSITY •
NUMBER ({ FS) (M N .) (INCH/HOUR)
1 22-. a8 27.26 ?.1.456
2 , 1.25 11.21 4.079
(€St1 r (1)
1., 000::1. n 000* 22.4)
.550*1.000* 1.3)
— 23.06:
°BMX(?)
a i .843* L13 * 22.4)
$ 1 00()'j 1.. 000 1.3)
- 18.969
RAINFALL INTEN a I T Y ANO TIME OF CONCENTRAT ION
USED -FOR 2 STREAMS.,
INDIVIDUAL STREAM FI...OW VALUES ARE:
• 22.30 1.25
POSS BLE CONFLUENCEO FI..OW VALUES ARE:
()`7 18.9?
14.079 1.N/1-Ir
1„2
FILL Ti:ii�-. 1.10HY D . f.lUT r..,,., ,'(..) -PRINTED. f.:r! ON 9`-vl.lN-89 113! ,.3?
PAGE. 1'"i
INDIVIDUAL STREAM AREA VALUE_,,. ARE::
EFFECTIVE TOTAL AREA VALUE ARE:
COMPUTED COE'NFLUENCE. ESTIMATES AREE
I.=-'.UEdorr(CFS) = 2.:,0/ I.T.MI::(E'ii' ) -. 27.255
LFFE:CTIVIE AREA AS ADJUSTED! FOR TIME (ACRES) -=(-OTii1.. , 1( Ili STREAM STUDY AREA (ACRES) =:
13.31
TOTAL -STUDY AREA AVERAGE•PERVIOUS AREA FRACTION(AP) ..988
T IJ T AL•STUDY rrr'EA• AVERAGE SOIL LOSS RATE(FM) = .5 ZJ1
•
.4.E_3++ F•1-++1-.4-++.'-.i-%•4.+++++4 ++++•1 ++?•f-++•F+•1-4-.3--++++++•1 ++{-4r+ 4-+++++^'.-+++ t-++•F+++•i-+4•+4.-1.4-1-
1. n00
PROCESS FROM POINT/STATION 13.00 TO POINT/STATION
:Jc r STREET FLO1'! TRAVEL TIME SUBAREA FLOW ADDITION
• 'UPSTREAM. ELEVATION. = 1378„ 00 (FT o )
1U0tw ,TRCAW ty1 VA T ION = I '; 7L! „0fl (FT a )
STREET LENGTH-.--- 329.77(FT„
CUD HIE IGHT- •
STREET HAL.F>>i7:I::!TH = `:i1.A0(FT„)
Pi::�•:. _ 1U,r00(FTu )
,.�.�� t �-,l��E FROM -CROWN i�n tjRc���r--�A1_:�. GRADE BREAK —
SLOI::: FROM GUTTER TO `(:TRADE BREAK •(V/I-1Z) - .0y0:.
SLOPE FROM (i ,orr.•E3f'EE_AE' TO Cr'OWN (U/H?) = .0"0
•NUMBER OF HAL FST.REETS' CAr RYINC RUNOFF = 1.
DISTANCE •FROM CURB • TO - PROF'Er'TY,'LINE =
SLOPE F F'0f4 CURET TO PROPERTY LINE (1/1-IZ) = • . 0n'0
UTTER WIDTH—`— 1, S0(1(F T ..)
GUTTER •HIKE FIkUM. ELOWLINE :1.A80(3..fiw)
ESTIMATED MEAN FUN -RATE AT M.1:LIPO ?.1`1T OF STREET 73mq8 (CFS)
DEPTH •OF:F:..OW = ,73r1(FTu)
AVERAGE VFI..00 I T Y — • 4 ,, 2`aW 1 /S 1
WARN INL DL P 1 H (.!E FLOW 'EXCEEDS TOP OF:CURB
L
DISTANCE THAT - CURB OVER'FLON REACHES INTO PROPERTY IS= 3 ,. 360l (FT ., )
�:5TREE T FLON' HYEaRAUL ICS AT. MIDPOINT OF STREET TRAVEL
HALT'-TRCCT FLOW I'tTIITI-i = 1.b, ;5(FT. )'
FLOW•VELOC iTY = •11 n ZS (FT/S) DEPTH*VELOC ITY•_
1RAVEL. TIME = = 28.55 MIN.
ADD!INiG AREA' FLOW TO STREET
1.00 „00 YEAR COMP'i..ITED. RAINFALL •IN T NiS ITY
I.JEL:: TI.MF'Il._ 1- RACTTOf.i SOIL Gi'OUP . A =. 1.000
DECIMAL FRACTION •SOIL.GROUP 11 ._ .000
L EL::IMAL. FRACTION SOIL. GROUP C - .000
0 C:1' Al_:•1 RACTIoi1•`:;OIL GROUP (1
R S IDL%i 1 IAL: (:i 4 DU/'i[M
S{.' (.:UI t?E t.!1 F,Er, FOR. ScIi_(AM(..- ?) = :32.0
AoJUC'TE 1i SCE CUI'V PUi�iEil.r' FOR AMC ,?, 52.0
C: C•: V S a I _) -- M -+ ' LOSS, + ' F 1 .
�',...::.,T.OU� r{�,T;.O(A1', ,(�(lC, �,,-,:, i�!� r'���Tr�.{.� i,:�r
T I—IE OR3:rt ADDED TO THE EXISTING STREAM CAUSES•A
3.12
L389 IE /HR
,:471 (IN/iHR)
��FILE D��?"100�Y�.aUT[�q,Vl PRINTED ON ?N-]UN-B9 }1 30 10 PAGE l�
^ ` ' ~ . ,
A LONER FLO— N RATE OF 7J-,05n(Cjq)
THEREFORE THE UPSTREAM FLON RATE 'OF Q �= ?�,0G7([FS)`
IS BEING USED,, `
cFFECTIVE RUNOFF [O'EFFI IENT USED FOR AREA O=-A IS C = .AA? ._
-UBAREA RUNOFF = .000(C F s' FOR � .1-16(AC.)
N� 7OTAL R ` NOFF = 7� ()�7/[��) TOTAL AREA = \ ' 77(�C )
� - ^ . .' `'�.~ . ' ^".'' `.. .'
' AREA AVERAGED FM VALUE = .57'g 'TN/AR)
'
OEPT'jOFFLn| = � ^ .730(FT.)
AVERAGE VELOCITY �,740(FT/S\
.
I)EPTH F[OQ H[EEDSUPOF`CURB
DISTANCE THAT CURB OVERFLOH REACHES INTO PROPERTY IS = ' 3.1G5'
~ '
' '
STREETFLON �YDRAuLICG AT IWO PO 'If
�- OF STREETTRAVEL
ALFSTREET FLON WIDTH = LG.75/FT.\ ^ '
FLON UELOCITY = 4.75(FT/5) DEPTH*UELOCITY � �.10 '
`
`
++++++f+++++++++++++++++++++++++++++++.++++++++++++++++++++
PROCESS FROM POINT/�TAT3ON ` |�.()� TO POINT/STATION 17.00
*** C'OWF|UEW[E OF MATH STREAM ***
c� '
--- . ` --
�O\iD�-W� DAT� TW�TD� MAIN �TR��M ��� ����U|�T�D
^ ��^~'`^... ~.'... -.,~^~^ ..`^ . ^..^ ..`^ ~..^~~....^~
. 100.00 YEAR COMPUTED RAINFALL INTENSITY 7 �Aq TN/AR
THE FLONVALUES USED FOR THE STREAM, ? ARE:
N� -IME OF CONCENTRAT ION ( lei
' N . ) = 2,R.5 5
RIAINFALL INTENSITY (IN /HR/), = 7.�9 ^
TOTAL FLOW,AREA (ACRES),= 13.77,
TOTAL RUNOFF ([��) AT CONFLUENCE POINT = ?3.�7
. '
' REA AVERAGED LOSS RATE (FM) :m- .579 '
HREA AVERAGED PERVIOUS`RATI.O (AP)
,
A. if.
-------'
`
DECIMAL4'RACTION SOIL GROUP'A :t-- 1.000
DECIMAL FRACTION SOIL GROUP B = ' .000
N� DECIMAL FRACTION SO -IL GROUP r= .000
' DECIMAL FRACTIDN'SOILGROUPD = .000 .
SUBAREA TYPE
��� [URVr HUMBER FOR �OIL(�MC ?) = �? 0
N� ~~~ ~ ' ` '^'� ^' ~ ^~ '
ADJUSTED SCc[URVENUMBER' FOR AMC � =, 57.0 '
m� PERV|OUS RATIO(AP)_�. .1.00 MA.X LOSS RATE(FM)=' .079/1N/1.1R>
N� 5UBAREA IS LU���KLlHL ' '
[NITIAL "UBAREA FLON LENGTH 630,2G(FT.)
PSTREAM ELEVATION 1� G 14 . 2 0 T.)
rOHNSTREAM ELEVATION1374.0 0/FT.)
N� �LEVATION DIFFERENCE = ���.70/�T.
~~ `
SLOPE Q)
`
'[C = �( ,'0 Q)*[(|ENGTH^-)/(�LEVATI0N'[HANGE\l^0.7
'
� .
'`
PROGRAM IS NON STARTING NITH M ri)TM S-E A M WD, �(
`
N� ++++++++++++++++++++++t++++++++++++++++++++++++++++++++++++++++++++++++++++
PROCESG FROM POINT/STATION 15.00 TO POINT/STATION 17.00 ' !
�� ------ _------ _---- _ -
`
,.. JK2: H I � �. i. �' I - r - r ^ i i .8 if I 38:35 P
:. �.:. �.� �'� >� :�.'„ I �� �-: ' :I � 111 i I� ..� 1.11 �-� .� � � i•�: i �� •; ,:. rl O ,[ � c) - ,.� U ��: t� • :: �. �:� r::s . � .� A c
IT r.AL. AF'E TIME OF CONCENTRATION _. •
10000'YEAR CO'ru U T E!I RAINFAL.'L. INTENSITY IT;` 4..732 .lNt/fir<:
;::.F+°EC'r IVE „UMOF•F t.:OEr'F C IE�1T 'USED FOF�•i-OTA!_ fir rt•
(1. (:1'A) I3 l: = c; ',�
SUBAREA RUNOFF :.. 11 .51.4= CFS j
TOTAL INITIAL- S T REAr1 Af EA 2.75<Ar . )
1'E!'}J IOl.' S AREA FRACTION. -. .:t ��()
INITIAL AREA FM..VALUE - • ..079(J14/HR)
3• 4.. . ;^ t f• •4• 4- -1 1- - - •{ - • f• - - 1- - - •d- 4- - -• -. -- -i- - .'r +7 .-. 4• 4.............1...p..}- -4...F- -f..F .f. -y- -1- -{-..} -f• .i...- -h. t •i- i•. -#- -F F -i• .9- 4- -{- t -i i^ + -i- -4- •x. + -r .F $ •ti`• -}• •t• • f•
PROCESS FROM F'O ] Tf; T AT TON 15. 00 TO POINT STATION 12 0
r-
" CONFLUENCE0 MAIN 'STREAMS }': •It•
"* CONFUTE U :r'IOUS CONFI..-UENCED FLOW VALUES
x. *
FOLLOWING DATA INSIDE MAIN STREAM ARE CALCULATED
100.00 YEAR COMPUTED RAINFALL INTENSITY
THE FLOW VALUES USED FOR THE STREAM:-. .. ARE
TIME. OF CONCENT rAT.IUNXM INl ,.) = 9.14
RAINFALL INTENSITY (IN ti /HR/) = 4..1 .. TOTAL.FLOW AREA (ACRES) = 2.25
IOT(',I_ RUNOFF (CF5) AT CONFLUENCE POINT -
AR AREA AVERAGED LOSS RATE .(FM) = ;, 079
AREA AVERAGED QED PERVIOUS RATIO (AF') = .100
CONFLUENCE INFO! MAT ION
STREAM RUNOFF TIME INTENSITY
NUMBER (iFS) (MIN,) (INCH/HOUR)
1 41- . 51. - 14.17
40.55
O 5 M X (1.) ;:
-1. 3(,I(3* :I.. (i()l') 41.. )
} 1... 67 1.* . 496 23.1)
. 2Cy5* 1.000* ' 1.:1..5 )'
= 69.444
.,r V 2
,. i. (.I 0 a{ 1. ,. 0 0 0'{ 41.5)
+ 1.: 000" i . 000* 23.1)
4- .497 * 1. , 000* 11.5)
OSMX(3)
+1 `5.1.* .645* 41...5)
+7.259,. 320* 2,.•')
▪ 1 000 1.'.000* 11.5)
.= 64.362
3.6 ?
7.389
4.732
4-.732 •IN/HF'
11.51
RAINFALL INTENSITY AND T IME OF CONCENTRATION
USED FOR 3 MAN STREAMS.
JNCl T J J:,6tJr-,!... STREAM FLOW VALUES ARE:
41.51 23.07 11.51
POSSIBLE E t`.;i: NF•I.UENCE° FLOW VALUES ARE:
(JC).41.1 53.69 64.36
INDIVIDUAL STREAM AREA VALUES ARE:
12.69 1,,.. 77 2.25
D;iK :i.00I-1YD J Ii 5 f i r.R isi.TF._!:: oi, 29JoN-89 " 3i_' ; 8
EFf-ECT1:VF_. TOTAL (lr.Ft VALUES ARE::
1
1
1
1
1
1
1
1
1
1
1
COMPUTED • CONFLUENCE ESTIMATES. ARE:.
f�UilOFI=([: ;). , • 69..4.4 TIME(M1:t,'..) - •14..120
EFFECTIVE AREA AS ADJUSTEC? FOR TIME ((ACRES)
TOTAL:MAIN STREAM STUDY Ar:>;.A (ACRES) w 29.21
iOTAL.STULI'f AREA AVERAGE PERVIOUS AREA EFAC'TION((ii=') .861
IOTA1..:-.STUI;tY AREAAVERAGE SOIL, LOSS f:ATC(FIl) — .481.
END,OF COMFUTAT IONS F TOTAL STUDY 'AREA
THE FOLLOWING. FIGURES •MAY .
E USED Fnr` A. UN :I:T I-iYOr flfik A'i-'H• STUDY OF THE SAME AREA
NOTE: THESE FIGURES 00 NOT CONSIDER REDUCED EFFECTIVE AREA
EFFECTS CAUSED By CONFLUENCES 1i' THE.RATIONAL EQUATION
.AREA AVERAGED •PE RU ]:UUS AREA Fi:(1CT IL)N (AP)•_ . B23
AREA' ;LIERA%fU SoS CFJiPUiEs"-45.0 •
ADJUSTED• St5CIIFL= NUMBER' FOR-AMC
3 " 65. t•
22.21
LI 1 O B (A C ,: )
i~!HY . OUT [::' 4 s is :1 PRINTED ON 2 a'- iUN-89 11 : 9:09 •
•SAr?` RERr'?(tr:i.)1:r?0..11)1.Ji`TY rRAT:t0HAL F'R0GRAM
Cor-'YR IGHT (C)••CIVIL[):::. IGN/C IV ILCADi:r
T AT IONAL HYDROLOGY STUDY DATE: •G-?1-89
TENTATIVE -HYDROLOGY STUDY
TLi'' fAT.1:t) TRACT 14407
CITY OF •F 0NTAN(s S N 1:Ir:rnArri)04d COUNTY
r SP'iEC IF :I:f:[i -1 YD OLOGY INFORMATION*
F'AGE 1.
10. () YEAR• STORM 1 HOURRAINFALL ( INCHES) - • 1.030
CoMPUTErt RAINFALL.. I.NTENsITY:
STORM YEAR = 1.0 00 :l ,uouR• '11...t,. RAIN ( INCH S)
SLOPE -USED 'FOR•J:N'rENS I:TY• CURVE: . G000
SOIL ANTECEDENT ' IIO ISTURE CONO I T ION tAMC) = 2
1.030.0.
+.;_r4.4.w.4..a.{..}..}..}.+.F.+.}..}.++4..{, L+++•i-+.}.+.}..t:..s.++++.}..{.:}..}++++.x.++++++++++++++ i-+++++.r..{+4•-r+i-.?-.{.
PROCESS FROM POINT/STATION • 1..00 TO POINT/STATION 2.00
j` • INITIAL AREA EVALUATION
DECIMAL •FRACTION SOIL GROUP; 1„000
'I:iEt:ImAL FRArT.T.0t1•SCiIL GROUP F _ .000
DECIMAL FRACTION.SOIL GROUP { = .00'0
DECIMAL FRACTION SOIL GROU ' D = .000
t4L.S .I.DE.r? I IAL(,? - 11. DU/AC)
C'b• [:URvr• r t'.i ie;I::R •r- ar Ci:t 1t_ (ANC. ?)
PERO IoOs L T.Y:o ((E) == n i7G)0 i1A i. bss RATr (F M . . 5L 7 (I ; H0
5UBWEA `[ s RES IDENT IA1_ r ., �.,; DU/AC)
INITIAL SUBAREA FLOW LENGTH _ 15J . 9G (FT
UPSTREAM ELEVATION - 1396u 00 (FT . )
DOWNSTREAM ELEVATION 139 .,30(FT,,)
LL.EVAT]w" olrr:RENGF = • „,�0{FT.}
SLOE _ „01.429 S(%) _ 1.43
To ` K. .41.i'_)*E(1-.ENC;'HI`'3)/(EI_.rVriTTON CHANr,E):! 0.1
INITIAL AREA TIME OF CONCENTRATION ._ •8.89G
10.00 YEAR:COMPUTED RAINFALL zt,'TENS IT 'Y _ IN/HR
EFFECTIVE RUNOFF COEFF IG IFI r. USEC' FOR TOTAL AREA
(r=CIA) :`s C = „737 •
SUBAREA: RUNOFF - 2.231(CFS)
TOTAL.• INITIAL STREAM AREA =. 941(Ac w
PERVIOUFLAREA FRACTION .GOO
INITIAL AREA. Firs. VALUE _ ..587 (IN/I-Ir•.: )
.¢.-+4-f-q-q-.¢..}.4—F++4-++++.i--t-±•.{...a..i++++++++#•+++++++++++++•?-•!-+++ .f+ ++++.1...a..s•+•Far++++4-=r.s —i-
PROCESS FROM POINT/STATION 2.00 TO F'OINT/STATION. 5.00
H. *4d. STREET FLOW TRAVEL TIME 7 SUBAREA FLOW ADDITION
• UPStRE.AK ELEVATION = 1 9 '.'30(FT.)
t N 3 c _AM•C T -
I.)L7r�i,l�ST�:I"r�rt•�_I._I�VAT :.Cit! 1 'a4.40(FT. )
•STRr::r`f' LENGTH = 1425.91(FT„). •
CURB I EI:Gl.l'3• = STREET HAL.FI'd J.t:t rH _- • /5 0(j (j- r )
DISTANCE Fr'oM C:<RC!a.N TO •CROC I=Al t_ GRADE BREAK
12.00(FT.
IFILE DS-..l0r�HY9..ii[:.i 1&:I N 9-,_09 11 .�u7"2t6 PAGE. � ..1 ('w h r. f, �7 >-i 1. L.., �.11.� I i..., t D 1 .. PRINTED �. �`. `k:. � €.7 ( .i U �'�' 1 .I..i '� 1 „ r...
SLOPE FRO9 •GUTTER TO GRADE BREAK.,..-. 3)'H7) =
SLOPE FROM GRADE BREAK TO CROWN (U/HZ) _.. .020
NUMBER OF HALFSTR'E ETS CARRYING RUNOFF - 1.
DISTANCE FROM CURE TO PROPERTY LINE 5.00 (F.T,, )
SLOPE FROM CURT,•TO PRORERTY f_ INE (V/IIG) -' .02 0
=GUTTER WIDTH 1.5OO(FT.)
GUTTER 13KE FROM 17LOWLINE =
ESTIMATED MEAN FLOW RATE AI —MIDPOINT OF STREET = •Z.9.6.0(CFS)
DEFT •i OF • LO!,! = 91. (FT. ).
,AVERAGE VELOCITY .._ 3,, 1.14 (FT/5)
STREETFLOW HYORAUL ICs AT MIDPOINT- OF STREET TRAVEL
HALFSTREET. FLOW •W IriTf•f f .7u(FT . )
1'•LOW UELOC TTY... .1.1.(FT/S) - UEPTH*VEL€: CI i'Y -• L Z,1
TRAVEL TIME = 2,,30 MIN. TC = :1.1..70 MIN.
ADDING.. AREA F LOW 10 STI'ECT
1 0 00 YEAR COMPUTED RA 1:NFAL.L :INTENSITY 2 A20 IN/HR
DECIMAL Ff ACT.:f:ON. SO It. GROUP ri = 1. 00()
DECIMAL. FRACTION. SOIL 'GROUP B = ,000
DECIMAL 1- RACT :f:ON SOIL GROUP €.. = . 000
DECIMAL. FRACTION SOIL GROUP D
FRS IDEN T 7:AL (3
SCS CUROE NUMBER. FOR S0 Tf.R ( AMC 2) fS2..0 •
PERVIOUS RATIO(AP) = .600 MAX •LO aS ...RATE(F•M)= .587 (1N/HR) .
EFFECTIVE, RUNOFF COEFFICIENT USED. FOR AREA - tE =CIA) Is .213.
SUBAREA RUNOFF =• 7.56 ;(CFI:;) Fait 1.'.1.5(Ac,)
TOTAL RUNOFF = q.794(CFS) • TOTAL AREA = . 8 (AC. )
AREA AVERAGED. FM VALUE . 87(IN/HR)- •
DEPTH •OF FLOW = , LH.4 {FT. )
AVERAGE VELOCITY .= 3.2 .5(FT/S)
S TREETI' LOW-HYDRAUL_ ICS AT ENDPOINT OF STREET TRAVEL.•
'HALFSTREET FLOW WIDTH 8.,5(FT.). •
.FLOW VELOCITY = ,. 11 (FT/S) DEP'TH'*UELOCITY =•
.{...s.4..4..4 +++++++++++ 4 +++.t +++++++.s.4..4..4..4..-4-4.+ t a, +i-•4•+.44..4..-4-1-.4..4• r•4.++++++++i-4.4-± 4..}..4-4-4.4.4.
PROCESS FROM POINT/STATION L.00 TO POINT/STATION 5.00
*.x.x. CONFLUENCE' OF MINOR STREAMS ,r..k.,F
10.00 YEAR COMPUTED RAINFALL INTENS :ETY = ? . 820 IN/HR
ALONG THE MAIN STREAM AM NUMBER: 1
FHE FLOW VALUES USED FOR THE STREAM:: 1. ^!RE
TIME OF CC)NCENTRAT ION (Mi IN.) 11.2D
RAINFALL INTI NSITY (IN. /HR/) = �.8^
TOTAL FLOW AREA (ACRES) = 2.38
"TOTAL RUNOFF (GFS) AT CONFLUENCE POINT ._.
AREA AVERAGED LOSS RATE (FM) 7 .597
AREA AVERAGED PERVIOUS RATIO (AP) = .600
4.79
t
LSI:OHYD F OUT [:54 F I _i r R INTE:D ON 4 c9_J0N--8"9- 1:1 : YJ R 44 PAGE
+ +++.4 --4 3.4..t 4..-4-4.++++4-++..r 1- {-i•. ++.? '-+_-r } +4,-i .t,-+.{ i +++^: + f._c.-r-{-+++++ -4 + i- ++ s.++ .-s ++
1`r'CICEs s FROI1 POINT/STATION • 3.00 TO Ro 1:NT /;-ZTAT ION 4.00 •
�r at 9t 1. N 1 F .I. A L A 4 ; l:: A EVALUATION' r{ r( }r,
DEC IMl11..;FRACTION SOIL GROUP Al = 1.000
DECIMAL FRACTION SOIL (ROUE' F - .000
DECIMAL FRACTION SOIL hf OUP • C = .000
DECIMAL FRACTION SOIL GROUP -' .00U
`�'1 : DF:NT IAL (3 4 DU/AC)
S CURVE NUMBER FOR %(:IIL(AM[> 2) ••- 32 f)
RVIOUS 'RAr1:0(AF`) = .600 .P'AX LOSS F.ATE.(Fh)= .547(1N/HI
SUBAREA :i:s: f:E:S IDrNTIAl._ (3 — 4 DU/AC)
INITIAL SUBAREA FLOW LENGTH _ 263 N 49 (F.1: 4
UPSTREAM ELEVATION = :[397.00(l=Tu)
DOWNSTREAM ELEVATION = 1392 u 30 (FT . )
ELEVATION DIFFERENCE = 11 .70 (F T „ )
:LOPE ',.01)84 S(%) = • 1.„7
To = K ( I.412) E (LENOTH 3) / (LL.EVATION CHANGE) r(1 n 2
INT TAL. AREA TIME OF CONCENTRATION = 8.569 MIN.'.
10.00 YEAR COMPUTED RAINFALL INTENSITY -W 3.311 IN/I•IF'
EFFECTIVE RUNOFF COEFFICIENT USED FOR TOTAL AREA
(0-CIF) IS C = 741
SUBAREA RUNOFF = • 1 4 812 (CFS)
T OTAL IN IT.IAI... STREAM AREA = a 711(AC ., )
PERVIOUS AREA FRACTION 600
INITIAL IAL AREA FM VALUE = U 587 (IN/HR)
--i r++++++.{.+ +ti .i.++-i +++++++++++++ter {-+ +ter+++++i +++++? ++++++++.s +++++ +++± +-5 +++++
E`F:'OCESS FROM. POINT/STATION 4.00 TO F'O TNT/STAT 1:oN•
*** STREET FLOW. TRAVEL AVEL TIME +•. SUBA EA . FLCIW(1DD IT IOt•1
`..00
* * •4
UPSTREAM L1...EVAT:[ON _• 1392 ,. 30 (FT a )
Jt:u'N ?Ti FAh `EL.t VAT 1:CIN �_ 1. 384 .140 (FT .,
T F'EF:T LFNO.r11 -129 '`0 (F T
•CJI i-IE1:CFI'f
STREET HALF!D? 1:[:i•rn = 75.0u (FT.,) -
OISTANCE FROM CROWN. TO CROSSFALL GRADE. BREAK = 1.2..00(FT.)
SLOF'r•FROM GUTTER TO liRADE• BREAK (1)/h4Z) = :,0U0
'SLOPE FROM GRADE : BF:EAK TO CROWN. (U/HZ) . 020
NUMBER. OF. HALFSTREETS •CAF`F`YING RUNOFF = •
DISTANCE FROM . C:URB TO •F'ROF'ER T Y LINE '►0 0f1(FT u )
``-:L0l r. Fr'OIf CUR.D. TO'F'ROF'E F TY LINE (U.'HZ) - ,020.
• GUTTER W?1:UTH =' 1 w 00(FTD.)
GUTTER HIKE FROM FI.:.OWL INE = 1 680 (Is`•? . )
ESTIMATED MEAN FLOW? RATE .AT Fi CDF`C] II'43 OF STREET 3 a 531.4 (CFS )
DEPTH OF FLOW-=.
a379(FT.)
AVERAGE UUELOCITY = 3,..008.(F T/S;)-.
5TREETrLOW? (•1YDr'AULTCs AT MIDPOINT GF STREET TRAVEL'
HALFSTREET FLOW W iDTH
FLOW! VELOCITY = 3..01.(FT/S) 4CF'THq[!._OC1:TY• = 1.14
TRAVEL -TIME = 2 ; 38 MIN', TC W. 10.95M s N
.,.,..._. Et':L r2 . i 0-a.Ei�., 1.54.;, 1PRINTED
ON 2—.ti-8,9 l 1 ' -0:0 )
f"lDC?ING, AREA FLOW 'to STREET
10.00 YEAR COMPUTED RAINFALL Ii`fl i:::NSTTY = Tip!/Hi DECIMAL FR
ACTION AC.T ION SOIL.. GROUP A - 1..00t
DECIMAL FC;`AC T IONS, SOIL.. GROUP E1 .000
DECIMAL FRACTION SOIL : Lif'uuF :C = .000
DECIMAL. FRACTION SOIL GROUP 0 .000
RESIDENTIAL( - I.1 DU/AC:) .
SCS CURVE NUMBER FOR SOIL(AMC ' = 32.0
PERVIOUS RATIO(AP) = 600 IiA'x Loss !ATE(FM) - . S87 (IN/HR )
EFFECTIVE RUNOFF COEFFICIENT USED FOR AREA (0=C I i) IS C = .715
SUBAREA RUNOFF = 2. S72(CFS) . FOR i n10(AC.)
TOTAL RUNOFF = 4.381(CFS) TOTAL AREA ?.114(Ac.)
AREA AVERAGED Fri : VALUE = .587.(IN/HR)
DEPTH OF. FLOW
AVERAGE VEL:.00ITY•=
.403(FT.)
3.208(FT/S)
' TREETFL.CIW , F•IYORAUL IC S AT ENDFo INT. OF STREET' TRAVEL
HALFSTREET• FLOW WIDTH = 8. 08 (FT.
•1 LOW•VELOCITY = 3 , 01 (F T /ST1-i*UI:::I...CIC: TTY = 1.. 2:1.
PROCFSS FROM POINT/STATION u.00 TO POINT/STATION 5.00
qx ,Y. CONFLUENCE' OF MINOR STREAMS
PAGE 4-
1.0.00 YEAR COMPUTED RAINFALL 'INTENSITY = 2.858 IN/NFL`
fAII..:QNC, THE -MAIN STREAM NUMBER :1.
THE FI...O1I VALUES USED FORTHE STREAM u 2 AR.E
T Tip OF CONCENTr'AT ION (M TN .) = 10 . S i
RAINFALL INTENSITY (IN , /HR/) = 2.86
TOTAL FLOW AREA (ACRES) = 2.1.4
TOTAL RUNOFF (CFS) AT CONFLUENCE POINT - 4,38
AREA AVERAGED LOSS RATE (FM) = .58?
AREA AVERAGED PERVIOUS RATIO (AP' _ .600
+.a..a..4..s. ...t..c..4..4..4 +.4•+4•++•4•++ 4•+++++.4..4 ++a..4 +++•4..4.++•+•+++++++•4•+++++ 4•+++.+.+++++.{..4 ++.4..y ;..,t.y..,'..} +
PROCESS FROM POINT/STATION 6.00 TO POINT/STATION
4k INITIAL AREA EVALUATION
DECIMAL 'FRACTION SOIL GROUT' A— :t .000
DrC IMAL.. FRAr T IoN.. SO 1:1.. GROUP I; .; 00U
DECIMAL FRACTION' So IL GROUP.0 = .000.
DECIMAL. FRACTION SAIL LRCUF' t) _ .000
RESIDENTIAL(?) — 4. DU/AC)
i
=-f CURVENUMBER FOR SoIL('?L •) = 32.0
1'ERV1OUS•RATI0(AP) = .600.MAX LOSS RATE(FM)=
SUBAREA Iq rECaiE }1L (3 — 4 DU/AC).
INITIAL SUBAREA FLOW LENGTH _//�� 1611 .01 (FT,. )
UPS.TEAM ELEVATION. .l.38 ��50(1'((' T.) •
DOWNSTREAki ELEVATION = 1.3811. I10 (F.T . )
i'LEVATIION.•DIFFER'ENCE = • 2.10(FT.,)
SLOPE = .01.280 S(%) 1.28
5.00
.:•) ••
'. 5S7 (IN/HR) •
DEK2:1.OHYI I)L)i1.:,aU341 PRINTED.
ON 29-Ju,H89 11a40;25 'AOE a •
i C = V ( 4J.2) xr.€. (l-EN TH )/(EL..EVA1 J ON 12HANGE) .1"0..?
INITIAL. AREA TIME • OF CONCENTRATION = 7.57 a MIN. •
:I. 1. 00 YEAR COMPACTED RAINFALL INTENSITY =3.565 IN/HR.
EFFECTIVE RUNOFF -COEFFICIENT USED ror' TOTAL.'• ARE(
( F>I-f .A) IS C - .752.
SUBAREA, RUNOFF -.842 (CFS) •
TOTAL' INITIAL STREAM: AREA . 1 (AC „ )
PERVIOUS AREA. F RACT ION . L00
INITIAL AREA F-M VALUE .:87(1.N/1-1R).
E'ROCE S FROM. POINT/STATION G o 00•T0• l='o INT/SITA r IoN •5. 00 •
t" ,CONFLUENCE 01= M :?"0i STi'L(i1S *r*
* "" COMPUTE VARIOUS. CONFLUENCED FLOW VALUES
• 10.00 YEA COMPUTED• RA:CNFALL. INTENS ITY- _ a . `J65 IN/HR
ALONG THE. MAIN STREAM NUMBER: • :1.
THE FLOW VALUES USED FOR THE STREAM: 3 ARE ;;
TiME OF CONC:1 NTkATION(MJN.) 7 7^»YFJ7
RAINFALL' INTL.H;:,ITY (IN../Hk/) ;,„57
1O-i'AL. FLOW AREA (ACr<FS) :._ . .31
TOTALRUNOFF (C1=i) AT CONFLUENCE POINT
(1RLA AVERAGED LOSS BATE (FM) - .587
AREA AVERAGED PERVIOUS RATIO(AF') = .600 •
F:f0NFI...UENCE INFCIRMAT ION
STREAM RUNOFF • TIME INTENSITY
NUMBER (CF S) (MI.N.) ( INCH/HOUR)
4, 7'9'
4 . 3{
.8l4
4.' „ 0 l:) () *J.. 0 0 0"
,. . 98 3*J.. l00*
4. .7 0*1.000*
9.735
0Sr4X(2) _-
+ 1.01.7* . 97 8 *
.+1.000*1.000*
• „7(3 "1.000;F
9.793
OaMX(3) ....
+ 334* .676
+1.311 .f92*
±1 .)00N•1...000*_
. 9.144
4.8)
44)
.8)
11.20
10.95
7.57
.84
2.820
2.058
3.565
1A INFAL.L. INTENSITY AND T IME OF CONCENTRATION
USED FOR 3 STREAMS,
INDIVIDUAL STREAM FLOW VALUES ARE:
9 4.38 .84
POSSIBLE CONFLUENCEO FLOW VALUES ARE:
9.73 9 79 9.14
INDIVIDUAL 'STREAM AREA VALUES ARE:
r :O HY D,j_.L-=4 ,4 .-r r T :[rN 29— s ! — C J 11:4 (: _J 'PAGE 6 •
TOTAL
rt 2„ 1 r q E n a.
EFFECTIVE 1 Oi1 TAL Rr-t{ VAL..UE:.i•(F E a
Coi°1p►_! T Er:' CONFL.Ur= NCE ESTIMATES ARE:
RUNOTI“Cr'*) = c1r`1�7 TIvr-..(m :N.) — • 10.948
EFFECTIVE AREA AS ADJUSTED FOR TIME (ACRES) = I..7�:J
.3 OTAL MA:FN STRFAh STUDY AREA (ACRES) = 14 ..CG?.
•To T AL. STUDY AREA 'AVERAGE. PERVIOUS AREA FRACTION(AP) _ .600
TOTAL 8TUC:fy AREA' AVER(1GC SOIL•LOSS RATF..(F 1)•=
r.s-}4a. }.4-4-±+:+-a-a,.-4 4.a.+++++fir-++++±+++-4--4-+•4--4-+ 4- i- 1-4 4-4.++•-4-++- -4-i-+i +.4.4 4-±.4-4-+-i+a.+-4-++++
P'rf'OCFSS FROM POINT/STATION :5.00 TO POINT/STATION 7..00
SWEET FLOW TPA )f_L r IiIF . SUFI(ir EA FLOW ADDITION
UPSTREAM ELEVATION = 1384.r10(FTa )
DOWNSTREAM ELEVATION .1 0 ,. 5 (FT a ).
``.STREET LENGTH = 127 , 50 (FT )
CURB B HEIGHT = C e (INk
STREET 1-1ALFu.T.I''TI-I = 75n s)0 (FT, )
DISTANCE FROM CROWN TO CROSSFAlL GRADE BREAK = J.2n00(FT.)
SLOPE FROM GUTTER TO GRADE LFF:Al' (U/H7) = .040
SLOPE FROM hR'riE BREAK TO CROWN (UI/HZ) = .020
NUMBER OF HALFS TF:EETE CARRYING RUNOFF
DISTANCE FROM CURT: TO PROPERTY OF ERTY LINE = 5 00 (F T .: )
LOPE FROM CURD TO PROPERTY LINE (1.)/H7_) = „020
BUTTER WIDTH = 1.. S00(FT„ )
GUTTER HIVE FROM FLOWLINE = 1.. 6,20 (IN . )
c_ T'MATED MEAN FLOW RATE AT MIDPOINT OF STREET = 1.0rt229(CF S)
DEPTH OF FLOW = . SJ.2 (1 T )
AVERAGE ,VELOCITY = 2. 1. ;(FT/S)
STREETF L:old HYDRAULICS AT MIDPOINT OF STREET TRAVEL
HALFSTREET FL...ow WIDTH = 10.8I (FT,. )
FLOW VELOCITY = 2 . 13 (FT/S) DEPTI.i*VELOC TTY = 1.09
1RAVEL TIME = • 1.00 MIN. TC = 11.,94 ►iIrkr:
ADDING AREA FLAW To STREET
10.00 YEAR COMPUTED RAINFALL INTENSITY 2.713 IO/HR•
DECIMAL FRACTION SOIL GROUT' A = 1.000
DECIMAL FRACTION SOIL -GROUP B = .000
DECIMAL FRACTION SOIL GROUT' C = .000
DECIMAL FRACTION SOIL GROUT' D = .000
I ES 1:DENT J:f11... (, — tJ DU/AC)
SCS CURVE NUMBER FOR SOIL(AMC 2) = 32.0
PERVIOUS RATJ:o.(AP) = .600 MAX LOSS RATE(FM)= 5B7(IN/I1 )
.EFFECTIVE RUNOFF COEFFICIENT USED FOR AREA (0=C Ii1) IS ' C = .872
SUBAREA RUNOFF - . i.8! (CFS) FOR ., 43 0C
TOTAI_. RUNOFF =
9n981 (CF9) TOTAL. AREA = ', /�'(CiL )
A� AREA AVEAVERAGE1=i�1 VALUE = 5-?(INYHR }
!JF1'i 1-f 'OF FLOW! -
AVERAGE VELOCITY = 2 1.1.E (1=T/S)
2:.1.0 IY[):0111 i»5 0 11:41:00 PAGE '
STREETFLOW HYDRAULICS AT •EM[)P[) I)'!T OF STREET TRAVEL.
HALF STREET Fi:»WI WIDTH1.0 a 71(F.-t )
FLOW -VELOCITY = 1„1.3(FT/S) I)EFTH*UELOCITY_ _ LOS
.{. 1". + i.+ 4 f..{.• 4—;. •{• 4 •i• s• ; 'r t•• h -f.f e n"r ^ + + + i q- + + f •t-' F }• .}..a.. - 4- i• 1- 4 -1- 4- 4- r -f- {» } •r + + Jr Jr r 4- 4 4. -1 ar { 4 4 ? } f �•
PROCESS FROM F'O INT/ TAT 1ON 5.00 TO POINT/STATION 7.00
CONFLUENCE OF M TNOR S rr EA1i5
10,00 YE:AR : COMP'U TEO RAINFALL INTENSITY
ALONG -THE MAIN STREAM NUMBER 1
•I HE FLOW VALt.UES : USEO FOR THE -STREAM: 1 ARE::•
TIME OF._ CowCENTRAT IoN (M IN.O _. I 1 y 9';.
RAINFALL INTENSITY -(IN./AR/) _ 2 n 7:1.
TOTAL. FL.OW AREA (ACRES)•=•
IOTAL . RUNC)FF (CFS) AT CONFLUENCE POINT
AREA AVERAGED ..LOSS„.RATE (I=11)• •..557
AREA AVERAGED rE::rt`VIOIJC R'AT1:O '(AE=')• w .600
2„713 1N/1-I►.
9.90
+ e..7 +...Ji..h 4 Jr +•Y.++ 1••i 4-1 ri-4 •?-4 •f•.4•4-•i- 4-+4 •{-++++++✓»++++•{-++++ f•++ t +-'r3'•{- }.•..{..{-.?..r+.d +•}.+Jr4—t.+.*.'•�.
PROCESS FROM POINT/STATION )0., 00 TO POINT/STATION 8.00
INITIAL AREA EUALUAT ION
DECIMAL-.. FRACTION SOIL GROUP:A = 1..000
DECIMAL Fltr-,cTr:core•So I.L. GROUP. EI :- u 00()
•I,1LC IMAl TRACTION SOIL (ROOF' 4 000
I:)E imAi». FRACTION SOIL. 0kOUF' 0 = 0 000
4JtlDE UEL.11F'EG (AVERI✓1GE CODER) SUBAREA
S('S CURVE NUME,EF FOP:' SOIL(AMC•2) _: 0A
PERVIOUS RATIO(AI) = 1.000 f`1AX LOSS RA'TE(Ff1)= .510c.Ir•!/HF;)
SUBAREA Is UNDEVELOPED AVERAGE COVER
.[INITIAL SUBAREA FLOW LENGTH. = 1550 00(FT,.)
UPSTREAM. ELEVAT ION•= • 1'4U0 . 00 (FT n )
DOWNSTREAM ELEVATION = 1'400 ,.00 (FT
4_LEVAT EON I:E IF'FERENCE : 1.40. 0 (F.T ., )
SLOE - .,07581 ,
TC = I(( 706) `[: (LENGTFi'•`3) / (EL..E.VAT :I:ON CHANAE) 7''0 u f
INITIAL AREA T THE •OF CONCENTRATION = • 27.707 HI .
:I.O.. 00 YEAR COMPU T Erg _RAINFALL -INTENSITY = • .1. G 7 INqR
EFFECTIVE ECTIVE RUNOFF COEFFICIENT USED .FOR- TOTAL AREA(L�'=L +.A) IS E -- rlS.J
•
•::,UF:AREA RUNOFF—=. 13 .. 7c (LI'" 5
1 OTAL INITIAL STREAM AREAL =• .[0,.51(0Ca J'•
PERVIOUS Ar EA: rr:ACT I01`•I = 1 .000
INITIAL AREA .FM. VALUE. _ ..01.0 (IN/1-IR
+.{.s..r} + +++.f..i..t..} +-1 + f+-1 +.Fr..f +++.v ++^f +.{-+f++++++++•»-+a-.+.{. +++++-{-++t-i..f.+.{ :{ ++-f ++++++ •{-++
PROCESS FROM POINT/STATION 0.00 TO- POINT/STATION
* - STREET FLOW TRAVEL T:[ME + SUBAREA FLON AGO I I IGN -
9.. 00
:* * *
--1jF'S T R'EAM. EI_.EVAT ION = 1 99 00 (1= T. )
DOWNSTREAM ELEVATION _
II[....r i1S ` 1.OHYD .OU 1 54 4 1 F'R 4 FCC O1•I 29—,JHN--.89 1.1.41.:19 .PAoE t=;
STREET ±=.[.:T'LENGTH 3 51 .„ 59 FT. )
CURB HEIGHT. * 8 (:I:N„)
5'rREFT HAL.F'iiIUTH = 1.11.00(?-T„)
DISTANCE FROM Ott CROON TO C OOSr ALL GRADE BREAK —( 1.8. U0 (FT . )•
SLOPE FROM L1UT i EF TO GRADE •BREAK (U.'1-12.) 7 n (JISU
SLOPE FROM GRADE 'BREAK TO CROWN (U/H ) • _ O?C_l
NUMBER OF. HAL.FS i r'EET S I..ARRYIUG RUNOFF = .
IJIST(i'r!Cr •0M CURE, TO PROPERTY. LINE —• 1.5o00(FT.)
SLOPE FROM.CURB TOF'rOPER'TY' LINE (U,'H •) 02>)
=MUTTER WIDTH 1 . 500 (FT .) .
GUTTER FI IKE . FROM FLOWL IUE = 1,. 680 (IN . )
ESTIMATED MEAN FLOW RATE AT MIDPOINT OF STREET = 1.3 918(CFs)
..DEPTH OF FL.OW., :- 44S (FT. )
AVERAGE VELOCITY L 960 (F•T /S )
STREETFLOW HYEIRAUL ICS AT MIDPOINT OF STREET TRAVEL
HALFSTR:EET--FLOI'1 WIDTH = 9.21(FT.)
FLOW VELOCITY = ;. I6(FT/S) DEPTH*VELOCITY = :.71:3
TRAVEL TIME 1.48 rf1N„ T 29.19 MIN,
ADDING AREA 1-Low To STREET
10.00 YEAR CONFUTED .RAINFALL INTENSITY = 1 .587 .IM/HR
DECIMAL FRACTION :5P 7:L: GROVE° (i = 1.000
DECIMALFRACTION R; CTTONI 50IL GROUP 1:1 .000
DECIMAL AL FRACTION IO(N! SOIL L NI.0I_1P 1, .000
DECIMAL FRACTION SOIL GROUP D =• .000
RESIDENTIAL( E, DU/RC)
SCS CURVE NUMBER FOI SOIL (AML 2) = 32.0
PERVIOUS r('rlo(AF') = .600 MAXLOSS RATE(Fh)- .S87(IN/HR)
THE AREA ADDED TO THE EXISTING STREAM CAUSES it
A LOWER FLOW? RATE OF -0 = 11.?51(CFS)
THEREFORE THE UPSTREAM FLOW RATE OF 0 13.796(CFS)
IS BEING USE[:..
EFFECTIVE RUNOFF COEFFICIENT USED FOR AREA (0=C 1.A) IS C = .442
SUBAREA RUNOFF =, . 000 (CFS) FOR .: 33 (AC » )
OTA1L. RUNOFF = .i. a4 '%(CFS) TOTAL. AREA — 18.84(AC.)
AREA AVERAGED FM,VALUE _ .806(IN/1-Ir')
DEPTH. OF FLOW! =
AVERAGE VELOCITY
447 (FT )
3.951(FT/S)
. STREETFI...OW HYDRAULICS AT ENDPOINT, OF STREET TRAVEL
H(a[.FSTRr:E•r• FLOW. I':IsTH = •
FLOI'I VEL...00 I T Y 3. J1_, (FT/b) DEPTf-1*UE1._OC T T Y
1.72
r_ .rr .#• .�• •!•'.�. ''!' .y. •}' .{.. '!- • fi• .�..�..t. Y' •F• .F .}. '� '}..�. '4' .�..{'• .T. = -1• •4• •� .f..f..}..}..g..s..s..b..f• •a• .�• •r •}• .b'..ir 'i•' •i- �' •'r -t• •a' •}. •4• '{•' •t' •F •rt' •f • •}• •r �...¢..{...{..i •F• •i- •4' �- �r .¢' .'r •f-'�' 'f-
1'r'Ot FSS I ROM F'O TNT/STAT ION MO. .TO•F O TN?T/STAT i:ON 7 00 •
;" �t STREET FLOW. TRAUf:.I... (ih[: .- SUBAREA'F1-.(JW •ADD IT IO[s AAA'
UPSTREAM .ELEVATION..-- 1391..02(FT.,)
LIOWNSTR1:(si 1 I._FVAr :Oi? - 138 i.7`:i(FT.. )
STkF_.F. r'. 1::F.NC f} 30 24 EFT.
CURB 1 1 r: i i .t: -.
v `
JIFILE ���7�10A/�.[i�r�U'4l PRINTEn ON 7q-]UN-Aq 1�~�1^�7 '`PAGE q _ ^.. ~` .^.. ~ ' . . ' . ^ . .^.~' ' . .
'
STREET 'H FNIDTH 41.00(FT.)
DISTANCE FROM CROWN TO pROSSFALLGRADE BREAK = 18.000T.)
SLOPE FROM GUTER TO GRADEBREAK (U/A7) = ,04'
SLOPE FROWGRADE BREAK TO
CROWN (U/A7)= .070
UMBER OF HALFSTREETS CARRYING RUNOFF =' "
`DISTANCE FROM CURB TO PROPERTY LINE = 15.000T.) '
LOPE FROM''CURB TO PROPERTY LINE 'U/H-) = .070
GUTTER WIDTH = 1.500(FT.) `
GUTTER -HIKE' `ROM FLONLIN'E 1.680i`N.)
ESTIMATED MEAN FLOW RATE AT MIDPOINT OF jTREET — 11.913(CFS)
DEPTH OF FLOW = .V 0/F,
AVERAGE VELOCITY = '3.q1q(FT/")c'
TREETFLOQ HYDRAOLIC00MIDPOINT OFSTREET .TRAVL
HALFSTREET TLOH WIDTH� = q.�?
6(,T . ) . ` �
FLOW VELOCITY = 3'.97(FT/9) DEPTH*UELOCITY = ' i .77
|RAVELTIME = '1.40 MIN. T[ = 30.59 MIN. .
^
ADD-NG AREA rLUN TO 'STREET
10.08 YEAR COMPUTED RAINFALL INTENSITY = \.541 TN/AR
DECIMAL FRACTION SOIL GROUP A = 1.000
DECIMAL-FRACT10i SOIL GROUP A =,.000
DECIMAL - ACTION'SOIL GROUP C = .000
DECIMAL FRACTION SOIL GROUP D = .000
RESTDcWTTA�/� - V DU/A[)
qCr CURVE NUMBER FOR SOIL(AMC 7) = 32.0 `
PERVIOUS RATIO( P) = .GO[) MAX LOSS RATE(FM)=
THE AREA ADDED TO,[HE EXISTING STREAM CAUSES A '
A LONERFLO. RATE OF Q = 12.776([FS)
THEREFORE THE'UPSTREAM FLON RATE OF D = 13.79G([FS) '
IS BEING USED.
EFFECTIVE RUNOFF COEFFICIENT USED FOR AREA (D=CA` IS C = .4
31 '
SUBAREA RUNOFF = . FS) FOR 32(AC.) ;
TOTAL RUNOFF = 13.7qG(CFS)` TOTAL AREA
' �
AREA AVERAGED FM VALUE = .A0?(TN/HR) '
'
DEPTH OF FLOW '= - .440(FT.)
AVERAGE VELOCITY = ' 3~911(FUS)
STREETFLON HYDRAULICS AT ENDPOINT OF'STREET TRAVEL
AALFSTRFEt FLOW WIDTH =' .730T.)
FLOW UELOCITY'= 3,92(FT/9) DEPTH*UEL]CITY = 1.7G
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
PROCESS FROM POINT/STATION K0O TO POINT/STATION 7.00 .
*** COW�AUEW[EOF MINOR STREAMS . . ***
*** COMPUTE UARIOUj CONFLUENCED FLOW VALUES
1
10.00 YEAR COMPUTED RAINFALL INTENSITY = ' ^
ALONG THE MAIN STREAM NUMBER: | `
. `
~ ? ,
THE FLOW VALUES USED FOR THE STREAM. '^ ARE.
....
-�-
IL : 1, K .. 1.0I`I t 1.7nOW E t F .1 1=R Ii\lTEn Or: ! JUi? I.i.1 1.1., 1 n
•TIME. OF CONCENTRAT ION (M'I:N a ): �-3.059 �
-':r:[�?FALL.:4 t'rr1SITY (IN /lF<:/).
•T(ITAI... F-I...OW AREA (ACRES)•
TOTAL RUNOFF (C.1= S) :i' COI L UENCE POINT — 1 s a 80
f1REA (VERAG1::f•LOSS RATE(F11) w
AREA AVERAGED PERVIOUS RATIO (AP): -• . �1o/
I ONF,l:_UENCE I.Nf= OR MA:T ION
STREAM RUNOFF TIME
(.I i 1 r: E R• (C F S)• (MIN.)
INTENSITY
(INCH/HOUR)
9.98 11.94
13.80 30.59
OSMY(1) -
4.1.a0()0*1,000* 10R0)
•2.5lr1* .
° ;90* 13.8)
=% 3 .. 8 2373
LISMY(2)
.II Jj* t 000* 1:0.0)
+:1.. 000,t-1... 0()0 ' 13.8)
- 18.286
2.713'
.1,543
RAINFALL INTENSITY' AND TIME OF CONCENTRATION
USED FOR 2 STREAMS
INDIVIDUAL STREAM• [ 1._0'! VALUES ARE:
• 9..98 13aC1(;
POSSIBLE CONFL.UENCEI:+ FLOW VALUES ARE:
23J37 18.29
IrlDIVIDUAL. STREAM AREA VALUES ARE:
5 u G 2 19.16
EFFECTIVE TOTAL.. AREA VALUES ARE
12,70 2Ua :'
COMPUTED CONFLUENCE -ESTIMATES ARE:
RUNOFF(CFS) = 23a8/ 1IME_(MIN,.) -: 11..944
EFFECTIVE AREA AS ADJUSTED FOR TIME (ACRES)
11OTAL MAIN STREAM STUDY AREA (ACRES). 24.37
DOTAL_ STUDY AREA AVERAGE PERVIOUS AREA FRACTION(MP)
I OT(L STUDY AREA AVERAGE SOIL LOSS RATE (FM) = 4 /56
1?.70
.904
}- +++r••1- 4—f.{.4•i ++.a..}.:}4-4..q.+.4 +a. .+.}..,;. 1-4.4.4.4-+++.}.+.{ +.'i-4-:r•'}•.§'•4 ++47-? +++++-'r +.{..g.+ ++++++.r.4-t++.f.++
PROCESS FROM POINT/STATION 7..00 TO POINT/STATION 10., 00
*at*
;;tar •S Rl:ET FLOW TRAVEL T:C E + SUEIAI�EA FLOW' ADOI1 ION
UPSTREAM E.L.EVATIOC? =• 1383075.(FT.)
DOWNSTREAM' ELEVATION = ' 1. 81..:15(FT )`
STREET LENGTH.' = 1 6. 3G (FT .. ) •
CURE, HEIGHT
STREET HAI...FW:CDTH = 41.00(FT..)
DISTANCE FROM CROWN . TO . CROSSFAL..L GRADE BREAK 1E' u 00 (FT,: )
SLOPE FROM t:tUTTCR TO .GRADE BREAK •(U/HZ) - ..040•
SLOPE , FR01 GF`( DE BREAK TO CR'OWw ..(U/!-IZ) .020 •
HUMBER. OF 'HALT -STREETS CARRYING. RUNOFF =
DISTANCE FROM CURB TO PROPERTY •LINE• - 1.5 W 00(FT,. )
SLOPE FROM CURE TO PROPERTY LINE (V/HZ) = .020 •
GUTTER WIDTH _. I. 500 (FT..)
' AREA AVERAGED FM
` -
DEPTH OF`FLON = '
AVERAGE nELOCITY �
1 FILE A5K2:��0HYD.0UT[�U,ql PRINTED ON 7q-|UN-�q � ��47�'�
^ ~ ^ . . ^� ^ ^~
^
GUTTER HIKE FROM FLONLINE
ESTIMATED MAN FLOW RATE AT MTDPOTNT,OF STREET
= 74.0000FS)
'
`
DEPTH OF FLOW c .544(FT.)
AVERAGE VELOCITY = 4.363(FT/S)
'
cTREETFLON HYDRAULICS AT MA)POTWT OF STREET TRAVEL �
HALFSTREET FLOW WIDTH = II.G0(FT.) �
FLOW VELOCITY = 4"36(-T/S) DEPT&UELOCITY = 7.37
'
'
TRAVEL TIME = .57 MIN. _ T[ = 17.47 MIN.
`
ADDING AREA FLOW TO STREET '
10.00 YEAR COMPUTED RAINFALL -INTENSITY =
DECIMAL FRACTION SOIL GROUP A = 1.000'.
DECIMAL FRACTION SOIL GROUP A = .000'
DECIMAL FRACTION SOIL GROUP L'= .UUU
DECIMAL FACTION SOIL GROUP 0 = .000 '
RESlUENllAi(3 - 4 DU/Q
S[S CURVE NUMBER FOR SOIL(AM[ ?) = 37.0
PERVIOUS �RATIOOP)� ='� .600 MAX LOSS �RATE(FM)= '
THE AREA ADDED U 'THE sXISTING STREAM CAUSES'A
O ?1 A?q/���\
A LONER FLOW RATE OF . � ^^,.^......
^
THEREFORE THE UPSTREAM FLOW RATE OF G=
IS BEING USED,
EFFECTIVE RUNOFF COEFFICIENT USED FOR` AREA QCTA)
`SUBAREA RUNOFF = .000([FS) FOK .140C.
TOTAL RUNOFF = 73.873(CFS) ''TOTAL AREA = `
VALUE = .754(TN/HR)
.50(FT.)
, U.350(FT/S)
STREETFLON HYDRAULICS ENDPOINT OF STREET TRAVEL
— ' - -
ALFSTREE FLOW
WIDTH = l .-�7(FT.) '
FLON VELOCITY = 4,30FT/0DEPTH*UELOCITY =
7,B44TN/AR
087/TN/AR)
73.873([FS)
IS C = .574
?.A -(AC,)
�
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
PROCESS FROM POINT7STATION 10.00 TO POINT/STATION 14.00
*** PTPEFLOU TIME (USER SPECIFIED SIZE)
^`
UPSTREAM POINT ELEVATION = 1 .}5(FT.)
-DOWNSTREAM POINT ELEVATION = l379.500T~) `
FLOW LENGTH = 17.000T.) MANNINGS W = .011 `
O. OF PIPES = { REQUIRED PIPE FLOW.
GIVEN PIPE SIZE = 74.000N.)
CALCULATED INDIVIDUAL PIPE FLOW �7 .873([FS) ^ .
NORMAL FLON DEPTHIN PIPE = A.7 (TNJ
FLOW TOP WIDTH INSIDE PIPE = 23.11(TN.)
UELOCITY= ?^3..
'01^`. '(�T/�) '
TRAVEL TIME .01 MIN. TC =`12.47-MIN. '
'
`
++++++'++f++++++++++++++++++++++++++++++++4++++++++++++++++++++++++++++++++
PROCESS FROM POINT/STATION 14.00TOPOIN' `STA�I8N 11.00 ,
*** TRAPEZOIDAL/RECT. [HANNE[. TRAVEL TIME
***
yl\ -n
OHYD.OUTT51-kg] PRINTED ON 29--,Juil-89 11.:42:75
PAGE i 2
1 �_
UPSTREAM POINT ELEVATION ION = .I. 79., 50 (F T ,: )
DOWNSTREAM 'POINT ELEVATION = 1. 78 .:1 G (FT . )
CHANNEL LENGTH TIIRU SUBAREA _. . 270,00(FT.v)
C:E-IAN1`!E:L, BASE WIDTH TI-I . -.. /.8.0O0 (I` T ::)
SLOPE ORn. p OF LEFT CHANNEL BANK =
SLOPE OR ° 7 n nF . 11:E IIT CHANNEL IANNEL_ BANK = .250
►` ANN:ENGS ' N ii . .020 MAXIMUM DEPTH OF CHANNEL
FLOW(0) THRI.I F;UBAIFA -- 2 QS73(CFS)
CI<'AVEL TIME TC; -• j; U , 77 MIN.
DEPTH of FLOW = .7)3s9(FT„)
AVERAGE -VELOCITY = 2 .508 (FT/S
CHANNEL' FLOW TOP WIDTH = 28..:I.69(F T .
2 .. 500 (FT u )
++++ +..f..f..x.++.t•++f -}.^i.++++ y y.++.f•++++•f ++++++ 4 +++ + ++++.y +K .a.++ .+3 +.f +++++++.r}..} ++ i +.t t..f..}..t +
PROCESS FROM POINT/STATION 11.00 TO POINT/STATION
«a,:* F''%;'i.FI.,,C1w TIME (USER SPECIFIED SIZE'
12.,.00 •
UPSTREAM P0IN T • ELEVAT ICIN _ 13/8. 16 (FT. )
DOWNSTREAM POINT ELEVATION := 3 74a00(FT.,)
FLOW LENGTH 7 . - 455„00(FT:.) MANNINGS f1 = .01.3
1`•'o. OF PIPES = 1 REOUIr:L:O PIPE FLOW = 2.3 97Z(CFS)
GIVEN PIPE SIZE = 36.00(IN.)
CALCULATED INDIVIDUAL PIPE FLOW - 23.873 (CF S)
NORMAL FLOW DEPTH,IN PIPE - 15n26(IN.)
FLOW TOP WIDTH INSIDE F'' IF'E _ 35 u 58 (I1d R )
VELOCITY 78 /(I^T/S)
1I Av'c:I... TIME = J1 MIN. TC - :I.5.1.7 Him.
' .f.4 +.+ s .f.±. +± -}•-}±+.f..f f•.{- s..t k•r S• 4-L+•f•+.r +.+.+.f..f.Y+^y..f.+± •f•++k
c.±4•f•+-4••?•+•f•.f +.}..
�+++++.f.}.4.z..r.+++.4.1±.¢.
Pro ESS FROM Po INT/ST AT ION 1140 00 Tra POINT/STATION 12.00
• *tit.• t.ONFL0j-.NI L :O4- Mfl TU 'STI^;E(1 S 1t*
FOLLOWING' DATA INSIDE MAIN S i RIf-li; FIDE CALCULATED
' 10. )O YEAR'COMPUTED RAINFALL- INTENSITY = ,� �0 IT1v/IiF
THE FLOW VALUES. USED FOR THE STRIr:A1°#:. 1 ARE::
TIME r - COS CE_�'T1s; AT iat'I (H IN . ?
RAINFALL. .INTENSITY. (IN./.1-IR/) = 2..3
I OTAL. F Lill AREA (ACRES) = 12..83.•
TOTAL I UNCIFF- (CFS)- AT •CnwFLLJFNC:F POINT 23n87•
I AREA AVERAGED •LOSS F'ATC (Fib)•= 7511
.AREA.AVERAGED PERVIOUS RATIO. (AI-') = .90:1
PROGRAM 1:S NO ' STARTING 'WITH MAIN STREAM i 0.. 2
•f•'f-•! 4•-F4.-+•.}..f4.4 i 4-4.a.4-1-a...}.++.f..f..f..f.++.7,...f..t..4•f•++Y+++++.1_.}..f.+3 4.f.r'- +.f..f..f..f.
I ROCS SS FROM POINT/STATION 31.00 TO POINT/STATION,
;- ' 10 TT 1.AL AREA EVALUATION
DECIMAL FRACTION SOIL GROUT' A _ - 1.000
DECIMAL FRACTION SOIL GROUP 8 = ,000
DECIMAL FRACTION'SOIL GROUP C. = r000
1 .00
i SK2 (�1:. Y t. 4 i'•2 r. � u 2
7 . ,;. F.. :i. ; { ! � 4 i ,. C.1 C� T I� �, � � { . � PRINTED r:r t�J T E: r = �� � •� ri _ ,.F L.J ,,� — C J !::l � f ... u 5 :.. •
1JEC IM L. F R ACT TON SOIL GROUP D _ .000
UNDEVELOPED (AVERAGE COVET-;) SUBAREA
SLS CURVE. NUMBER FOR SO I (AML., 2) 50.0
4'EF'V:rrous F,ATIO(AF') - 1 �0t:J0 MAX.. Loss RATE(FM) = .810(1/HF )
SUE,Ar•.:E� . r S UNDEV _:L.(1F'ED — AVERAGE LOVER
1tiITTAI._ SU1 (FEA .FLOU• LE'Jfi = 1400„00(FT
UPSTREAM ELEVATION 1141.0,.00(FTro) •
DOWNSTREAM. ELEVATION - 1375 a 00 (F1-.
F.LE:VAT ION DIFFERENCE. = • 2.00 (F T ti )
SLOE'r-_ "SO 2.29
Tr., =.4.( .706). C(LENCTEI'''.3)/(E.LEvnTION CHANGE)]"uu2'
:NIT :ritl AF EA TIME OF —CONCENTRATION = 22 u 255 , M I.N
:I..0. 00' YEAR COMPUTED RAINFALL "INTENSITY • 1 o 65i4 Tt2/441
LFFECT IVE F'UNOFF•COEFF IC IEN'r USED FOR TOTAL. AREA
(P=C:FA)• IS C = u459
EUBAREA R I. NOF _ 9A18(CFS)
TOTAL INITIAL STREAM AREA = 1.2w920C„)•:
PERVIOUS AREA FRACTION = 1. , U00
INITIAL AREA FM VALUE • .. 810-(IN/Hr )
4-4-4-Jr.¢. .4 "-+4.+4..+..fi4 +•ti.+4.+4._.r..r..+++.+r4..rar+.;..r__}•4._p.•r•f.i_..;..1.4 •..r+.?.'.f.i..1c.t+++" r,++.f.4.+4.' 4.4.+4.4.4.. r+.{ .}.a.4.
PROCESS FROM POINT/STATION 31 .00 TO POINT/STATION 13.00
*•„•*• CONFLUENCE F1.(14: NCE OF MINOR STREAMS
*.:* a
10. 00 YEAR COMPUTED RAINFALL INTENSITY 1.654 IN/HIF.•
i1L.UNG THE,MAIN STREAM NUMBER: : 2 •
THE FLOW VALUES USED FOR THE STREAM 1 ARE:
TIME OF CONCENTR:ATION(MIN.) = 22.26
RAINFALL INTENSITY (IN./HR/) - 1.,65
TOTAL FLo'i AREA (ACRES) ._ 1.2.92
TOTAL... RUNOFF (CFS) AT CONFLUENCE POINT
AREA AVERAGED LOSS RATE (FM) = .810
AlEA:AVERAGED PERVIOUS RATIO (AP) =' 1. u 000
„82
+ +++ +++++ ++++++++++++,+++ -i- i..}..i..i...f• i.. - •#..q..r + i.,} .4 ++ .!...r• k• •tit i• i• i• i• •i• -F •f• -i..i. ++ + .i.r •1- ++ •s• i• •f• i• -'r •'- -h -f..{- + } .;..A.
PROCESS FROM POINT/STATION . 16.00 TO POINT/STATION 13.00
r k* INITIAL. AREA EVALUATION
DECIMAL .FRACTION SOIL GROUP A = 1.000
DECIMAL TRACTION SOIL (arOUF' FI - „000
DECIMAL FRACTION SOIL GROUT' C = .000
DECJMAL,FRACTION SOIL GrOUr' D := .000
1 I:STI1F NT JAL(! — 4 DU/AC)
SCS CURVENUMBER FOR 50:EL..(AMC 2) = 32.0
PERVIOUS-RATIO(AP) = .600 MAX LOSS FiATE(Fti)= u587(1N/HE)
SUBAREA :S, F:l_5IUi_NT IAL (3 — 4 DU/AC)
INITIAL. SUBAREA FLOW LENGTH = 420.00 (FT . )
(.4F'STr'EA" ELEVATION = 134 2„00(FT,:)
DOWNSTREAM ELEVATION - 1 ! 78 n 00 (FT . )
ELEVATION DIFFERENCE = 400 (FT'. )
;LOPE =„00`) 52 �., ( ) .95 .
o = V( . 41.2) .L'(LENGTH 3)/(ELEVATION--CHANOE)a``0a2
INITIAL Art 1' A TIME OP -CONCENTRATION AT'.ION 11.702 MIN.
:4M0 YEAR COMPUTED RAINFALL INTENSITY = 2,.746 IN/I-4r;
IrILE CSK2:1OHYD..OL1TE54 y 4_I PRINTED ON 20—J0— 09 11:43:15 PAGE 1.0
EFFECTIVE RUNOFF. COEFFICIENT USED FOR TOTAL AREA'
(0 =CIA) ,. is C.• = .708
SUBAREA RUNOFF = .750(CF•S)
TOTAL._ INITIAL STREAM AREA:_ .39(AC.)
I PERVIOUS -AREA FRACTION =.C�00
INITIAL AREA Fri VALUE = S87 (IN/I-IR
' 4-.'---t3 a 4.4.++-y ++±++++4.4-1..s } -¢•±4 }.++ t +. {.++±.F.,..++++++++++±++++++ 5•+++++++++++±+++++++±±
PROCESS FROM POINT/STATION 1640 TO POINT/STATION 13.00
r}CONFLUENCE OFMINOR STREAMS:
a: **
* ** LoMr uTE VARIOUS CONF►...LJENCEO FLOW VALUES'
10.00 YEAR COMPUTED RAINFALL INTENSITY
ALONG THE: MAIN STREAM NUMBER:
1 HE FLOW VALUES USED FOR THE STREAM: 2 ARE:
TIME OF CDNCENTR:A T _LON (MIN ..) _ 1.171
RAINFALL INTENSITY (IN . /NR/) = / 75
4OTAL. FLOW AREA (ACRES) '= .39
TOTAL RUNOFF (CFS) AT CONFLUENCE POINT = .7
AREA AVERAGED LOSS RATE (FM) = .587
AREA AVERAGED PERVIOUS RATIO (AP) = .600
CONFLUENCE INFORMATION:
STREAM RUNOFF TIME INTENSITY
i' UMBER (CFS) (MIN.) (INCH/HOUR)
1 9.82 27.26
2 .75 11...71'
+1..0c.0"1..000 9.8)
.494*1...000* .8)
'- 10.189
OSMX(2) -
+7, 4!J* ,430:c 9.8)
+1..'0004 .. 0003''. .8) .
1.0.'12.E
�:A INFAI...L INTENSITY AND FOR 2 I UTIME OF CONCENTRATION
ION
USEDSTREAMS.
INDIVIDUAL STREAM FLOW VALUES ARE:
4 POSSIBLE CONFL.UENcEr 'FLOW .VALUES ARE:
1.0�'L9 10,42
INDIVIDUAL. STREAM AREA VALUES ARE:
92 .39
EFFECTIVE TOTAL AREA VALUES ARE
13.31. 5„94
COMPUTED CONFLUENCE ESTIMATES ARE:
RuN of=F(CI S) = 10.42 TIME(MI .) 11.70
EFFECTIVE AREA AS'ADJUSTED FOR TIME (ACRES) = 5.94
1 O T AL MAIN STREAM STUDY AREA (ACRES) r 13.31
TOTAL STUDY AREA AVERAGE PERVIOUS ARE, FRACTION(AP) = .988
1 OTAL STUDY AREA AVERAGE SOIL LOSS RATE(FM) M) ` = . 00,
1.654
2..74G
TL IE L. 1i? ►.0HYD, Li!; i L5L1.:, L ] PRINTED. 29—JuN; S. 11 -{ 3:3:1.
FACIE .L5
PROCESS •FROM POINT/STATION 13.00 TO POINT/.STATION12..00
STREET - FLOW. TRAV L TIME. + SUBAREA FLOW AD0IT I.Bf-1 n * *
UPSTRE:AII ELEVATION = :1 78.00 (F T .,
DOWNSTREAM ELEVATION = 1 i14 .00 (FT . )
STREET LENGTH = 329.27 (FT . )
{CURE 1..1E:[GHT = 8. (Imt
STREET MAL.FWIDTH = 51. 00(FT,. )
DISTANCE FROM CROWN TO CF'OS STALL GRADE BREAK = 4. 0U (FT . )
SLOPE FROM GLITTER TO GRADE BREAK (U/HZ) _ 040
SLOPE FROM GRADE BREAK TO CROWN (U/HZ) = .020
NUMBER OF HALFSTF'EETS CARRYING RUNOFF - (.
DISTANCE FROM CURE: TO PROPERTY LINE w 1 ,.00 (FT )
SLOPE FROM CURE, TO PROPERTY LINE (U/HZ) _ .020
GUTTER WIDTH - 1.500(FT.)
GUTTER HIKE FROM FLOWLINE = 1 ., G80 (IN . )
ESTIMATED MEAN FLOW RATE AT MIDPOINT OF STREET
DEPTH OF 'FL.oW = . 565 (FT .. )
AVERAGE VELOCITY = 3A03(FT/S)
STF'EETFLDU HYDRAULICS AT MIDPOINT 01= STREET TRAVEL
HALFSTREET FLOW WIDTH = 12. 1 4 (FT . )
FLOP VELOCITY = 3. G0 (FT/S) DEPTH*UELOC I T Y
TRAVEL_ TIME = 1.53 MIN. TC = 13.23 MIN..
ADDING AREA FLOW 10 STREET
10.00 YEAR COMPUTED RAINFALL INTENSITY = L.951 IN/I-1I
DECIMALTRACTION EOIL GROUP A = 1.000
DECIMAL FRACTION SOIL Cir•.'Our' El
DECIMAL FRACTION SOIL GROUT' C - .000
DECIMAL FRACTION SOIL GROUP 0 = 000
RLS l:DENT IAL (a. — 4 DU/AC
SCS CURVE NUMBER FOR. SOIL(AMC ?) 32.0
PERVIOUS RATIO (AP') _ .600 MAX LOSS RATE(FM) = „587(IN/H R )
T!IE AREA ADDED TO THE EXISTING STREAM CAUSES A
A LOWER FLOW RATE OF 0 = 10.15 (CFS)
THEREFORE THE UPSTREAM -FLOW RATE OF 0 = 10.42 (CFS)
IS BEING USED.
• .E1FFECTT.VE RUNOFF COEFFICIENT USED FOR AREA (0=CIA) IS C _ .85G
SuF>AF'i A RUNOFF - . 000 (CFS) FOR 1G (AC. )
TOTAL RUNOFF r I.0.4)3(CFS) TOTAL. AREA - G.40(AC.)
AREA AVERAGED FM VALUE 787(IN/HR)
10 8 8(CFS)
f.0� 1
OE:Pi H OF FLOW 7 .559 (i r. )
•r1VEr'AGE UE:LOC;ITY •- 3.5.66(FT/S)
`STRE 'TFLO!d 'HYDRAULICS AT l ND1-'S.l IN T OF 'STREET. TRAVEL.
HALFSTREET FL.0W WIDTH 11.'.9G(FT.)
Fl._OW.LELOC:[TY - I.60(1=T/S) DEPTH*VELOCITY = 2.0:1.
++.,,` ++y..n +++4—.+- :.{..$ + +.; + +_}•+++++_,..r.a.„,.+-+++ r++.f+4 + •+++++.?-d..f+-i..'-.Fi.++•t+•i S'++•f + i-++++ },+4
r s. !...'.;. ;-• .., { . .L 0 H Y LI A UTI.:.S ' ,i _1 , r R 1. N T x . r..! O I'. U ! .i _' $ l 1 P.t• .a „ 4) PAGE 16
1
1
1
1
1
1
i
PROCESS. FROM RO INT/ S T AT ION ri:1.3 a 00 TO. F`O INT/STATION •
,t•** CONFLUENCE Uf tiA.I.t' S REA S •
12.00
FOLLOWING DATA INSIDE MAIN STREAM ARE CALCULATED
10.00 YEAR COMPUTED! RAINFALL INTENSITY.
THE FLOW! VALUES ,USE0 , FOR THE STREAM: 2. ARE:
TIME OF CONCENTRAT TON (M IN.) = 13223
RAINFALL INTENSITY (Ii.1n /HR/) = Z .55
TOTAL FI..:o'I AREA (ACRES) _ :L„40
TOTAL. RUNOFF (CFS) AT CONFLUENCE POINT'
AREA AVERAGED LOSS RATE (FM) = .287
AREA AVERAGED PERVIOUS RATIO (AP) = .960
2.551 IN/HF:
10.442
PROGRAM IS NOW STARTING WITH MAIN STREAM
++++ ..}.+..++++.....F.•i•'.n•. }•..++.¢....}...¢.....•..........4......t......+++++..}...{...!_.F..;...p.+.} .p .x . a .s
i''ROCESS FRAM `O INT/STATION 15.00 TO POINT/STATION 12 .00
*�IN:IT1A_.AREA EVALUATfiO,:*
DECIMAL FRACTION SOIL GROUP'A = 1.000
DECIMAL FRACTION -SOIL GROUP 8 = .000
DECIMAL FRACTION SOIL GROUP C = .000
DECIMAL FRACTION SOIL. "CROUP 0 = .000
COMMERCIAL SUBAREA TYPE
SCE CURVE NUMBER FOR SOIL (AMC 2) = 32. 0
PERVIOUS RATIO(AP) = .100 MAX LOSS RATE(FM) <098(IN/I-IR)
SUBAREA IS COMMERCIAL-
INITIAL 3FJBAREA . FL:O<<t LENGTH = 130 .. 26 (FT , )
UPSTREAM ELEVATION = 1 ,8U 20(FT. )
DOWNSTREAM ELEVATION = 1 74 00(FT.:�
ELEVATION 'DIFFERENCE = 10.20(FT.)
SLOPE = .0I618 S(%) = 1.62
T�. = I(( . 0L1)*L(LENOTH"3)/(EL.EVATT0N CHANGE)J"0.2
INITIAL AREA TIME OF' CONCENTRATION F • 9.138 MIN .-
:1.0.00 YEAR COMPUTED RAINFALL :INTENSITY = 3.1BG IN/I-IR
EFFECTIVE RUNOFF COEFFICIENT USED FOR TOTAL AREA
;;=€_ IA) IS C - . C;I2
SUBAREA RUNOFF = 7.b40(CFS)
TOTAL INITIAL STREAM AREA = 2.75(AC.)
PERVIOUS AREA FRACTION = .100
IN: TIAL- AREA FM VALUE = .098(1N/HR)
_%.--4—;-J_.{_.4.+Jrz--F-}•+++++.{ r S-++ rJr+++-1-4•i•+JrJr.b.ar?•.4._}••i-++++•S--}•1--Jr+++++4-4 1-4-4..{...{_^`•+-4.•#•.i.t.
PROCESS FROM POINT/STATION 1.5.00 TO POINT/STATION 12.00
47* CONFLUENCE OF MAIN STREAMS
i' *'`•COMPUTE .OAF' TQUS CONFLUENCED- FLOW VALUES
.* •x )t•
FOLLOW INO DATA INSIDE. MAIN STREAM ARE CALCULATED
:10.00 YEAR COMPUTEDRAINFALL INTENSITY
THE FLOW VALUES USED FOR THE STREAM: 3 ARE:
TIME "OFCONCENTRATION(MIN.) = 9.111
3.1.86 1N/HR
SK2::4.044Y1):.. uT i..5!4.1'4_l PRINTED 0i`< 9— uN-89 11:44:11 PAGE 7
RAINFALL •INTEN , ITY- (IN. /HR/) - • 19
1 0TA1._. !"LOW .AREA(ACRES) _.. 2.75
TOTAL RUNOFF (CFS) AT CONFLUENCE POINT
OREA AVERAGED LOSSRATE (FM) = .098
AREA 'urr AGCr' 1=`E:RVIOUS RATIO 'OP) •
.,.100•
CONFLUENCE :INFORMATION:,.
aTRl: AM RUNOFF r.T.MI:. INTENSITY.
NUMBER (C C), (INC1-1/1-10UR).
1 23.07 2 350
? 10.42 13.23 2.551.
3 '7..6'4 9.143..1.1fi
OSMX(1) =
=-1.000*1.000*
• .. 886Y 1,. 000*
4- 7 t9*1.000*
38.629
O MX(2)
-1..12G* .872,e
+1..000*1.000f,.
• 795* 1.000*
39.936
t.' S !p4 X ( )
-1 52ll* .602*
+1,. 60* ..6917P
J. (;10 0* 1. e 0 0 04
39.333
'3.9)
10.4)
7.6)
23,9)
10.44)
7.6)
23.9)
10.4)
7.6)
77G14
RAINFALL I?TENS I T Y AND T IME OF CONCENTRATION
USED FOR 4YlA 114 STREAMS.'
INDIVIDUAL STREAM ' FLOW VALUES ARE n
2 3.87 10.42 7 .. GL4
POSSIBLE CONFLUENCE O FLOW VALUES ARE„
38.68 9. 94 39.3
INDIVIDUAL ,STREAM. -AREA VALUES ARE:.
12.83 6.,40 1n75
EFFECTIVE TOTAL_ AREA VALUES ARE
21.98 20 .. 344 14.90
COMPUTED CONFLUENCE ESTIMATES AF'E:.
RUNOFF(CFS) = 39.94 TIME(mIN.) = 13.232
EFFECTIVE IVEE AREA' AS ADJUSTED FOR TIME (ACRES) = ?0..311
TOTAL.MAIN STREAM STUDY AREA (ACRES) = 21..98
TOTAL STUDY AREA AVERAGE PERVIOUS AREA FRACTION(AP) = .818
IOTAL.. STUDY AREA AVERAGE SOIL LOSS RATE(FM) _ .682
END OF COMPUTAT IONS s.' TOTAL STUDY AREA
THE. F01...'...OW ING F IGURF S.. MAY
•SE USED FOR. A UNIT•HY.DROORAPH STUDY OF THE SAME AREA.•
NOTE: -THESE FIGURES•00 140T CONS IOER REDUCES EFFECTIVE AREA
:EFFECTS CAUSED E:Y CONFLUENCES• IN THE RATIONAL EOUA T ION .•
ARE AVERAGED E'EE;'J IOUS AREA FRAC T IUN (AP) ` .873
'AREA •AV4 {;t=itiED SCS CURVE NUMBER =- 45.8
ADJUSTED SCS CURVE. NUMBER -.4-J4.AMC. 2 - 115.8-
L41.04(Ac..)
INN I INN 1.11 MIN INN IN. INN INN INNI INII M 11111 EN
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SAN BERNARDINO COUNTY
HYDROLOGY MANUAL
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HYDROLOGY MANUAL
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FLOOD CONTROL DISTRICT
VALLEY AREA
tlOMYETAtS
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FIGURE B-3