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HomeMy WebLinkAboutTract 13411RCE S lw Nl ierra i` s CIVIL ENGINEERS + LAND SURVEYGRS • LAND PLANNERS DIVISION OF PROJECT 2000, INC. DRAINAGE REPORT `.TRACT NO. 13411 NORTH OF BASELINE ROAD BETWEEN MANGO AVE. & BLANCHARD AVE. CITY OF FONTANA SAN BERNARDINO COUNTY �!Q--- ETH o R.C.E:• 338208 u EXP. 6/30/90 0° i o f'll,it, �CALI©`� (?lA) 662.SAOO 27007 FIFTH STREET • HIGHLAND, CALIFORNIA 92346 DESIGN CRITERIA The following criteria has been used to analyze the probable storm flows impacting the project site. 1. San Bernardino. County Hydrology Manual 2. Los Angeles County Water Surface Profile Programs 3. 10 year and 100 year storm frequencies calculated a. 10 year storm carried in streets to top of curb. b. 100 year storm carreid in right of way. C. 10 year and 100 year storm will be intercepted in a catch basin and conveyed into an 18" R.C.P. pipe thatwill connect into an existing 18" R.C.P. on Tract 13230 discharging into an existing detention basin on the same Tract (see exhibit A for supporting information from Tract 13230). ANALYSIS OF ON-SITE DRAINAGE 1. The bulk of on-site storm flows concentrate at the corner of Cerritos Street and Mango Avenue. 2. A minor portion of the storm flows (2.4 cfs maximum) will be conveyed off-site via Blanchard Avenue (see Drainage Sub Area Map). 3. A catch basin will be constructed at the Northeast corner of Cerrritos Street and Mango Avenue to intercept all the storm water. No on-site storm flows shall be conveyed onto Mango Avenue from this project. The storm flow from the South 10.00 feet of Cerritos Street will be handeled through a drainage easement. (see enclosed drainage acceptance letter). ANALYSIS OF OFF-SITE DRAINAGE 1. Off-site storm flows enter the project site at the Northwest corner adjacent to Mango Avenue from an existing detention basin in Tract 12762 via an 18" R.C.P. pipe. 2. The on-site storm floods generated on Tract 13411 will be intercepted. by a ,catch basin at the Northeast corner of Mango Avenue and Cerritos Street and from there, conveyed to an 18" R.C.P. pipe where it combines with storm flows from Tract 12762. 3. Combined storm flows will be conveyed off-site via the proposed 18" R.C.P. southerly, a distance of 293 feet connecting to an existing 18" R.C.P. on Tract 13230, where all drainage will be outletted into a detention basin located on Tract 13230 (see storm drain plan for detail) 4. All 18" R.C.P. will be located in a drainage easement south of Tract 13411 (see enclosed easement documents). Job No. Date .Sierra En ineerly CIVIL ENGINEERS - LAND SURVEYORS - LAND PLANNERS 336 SOUTH WATERMAN, SUITE E SAN BERNARDINO, CA 92408 (71A) 888-0772 By Sheet of __._ 1, _ __ __ _ _ _._ _ _..__ 1 v _+o6,N:t ,o. J rlg CIVIL ENGINEERS LAND SURVEYORS • LAND PLANNER t •, i �r�/3 �9RFi9 f1 336 SOUTH WATERMAN, SUITE E SAN BERNARDINO. CA 92408 (71Q) 888.0772 By Sheet of _ , J.: 1 it II` - - -- •- - i I, xa � ,I i'r"a i ,'' f\ x�,l�p�'`+ I,%'�� -', I I _— - -I �: .I u o � ' O 1 i I I I I Iji i I I i t ;� 1 4 � I I� i I i ;• � _ � ' t � • - 1 r s I _ i I -1 j I I , 06 4 L (-..-_ _I I I.:. I It••,.11.1 �I �: . i I f-I���LJ � •.j ioot6 iy1.L. \ I � � I �� 1 ._ ,_ -- ._ _ - _ .. - �_. . I... _... .. l_1J I--i-.{ rv.- -----i'Lt LL _ 1J I . 9.1,E _. 1 lU7__J - +I I� I _ Y.— __.._ _. — - ——t , i S i i h.4 w- a t .: 1 e I'. I |\e 05Kl:l00HYD.0UT[74,2] printed on 31 -Jul -89 09128139 SAN BSBNABDINU COUNTY RATIONAL PROGRAM Copyright (c) [ivzlDesign/CivzlCadd, 1988 y . St d Date^ 7-37-89 Rational Hydrology u Page i. ---------_-__--_--------------_------_-_----- -------------------------------`- __ . HYDROLOGY STUDY TRACT 13411, lOO YEAR SZ{}BM 1N THE CITY OF FANIANA, CQUu?Y OF -3AN_)8GBNABDINU____________________________ ----_----------_----___------_----_- -----_---- �S9�CI�J�D HYDROLOGY IWFOBMA7IO"� ______ ______________________ -_- -- -_--_------__---------__-_----------- - 100,0 year storm our -- - - l h rainfall (Inches) ' Computed rainfall i»te»szLY: ' -- (�Inc3 hes) Storm year = iO0.00 l hour rainfall Slope used for i�tensity curve = .600� 5oiAntecedent Moisture Conditipn(AMC= i " 5000 +++++++++++++++++++o++++++++++++++++++++++++++++++++++++++*++++++++++++++++ process from Point/9tation l.O0 �o Point/Station 2.0O ' IA� AREA � ��� INII SVALUAIlQ --___________------------------------------------------ -~-r---------~----- _ Decimal Fraction Soil Group A = l^Ohr Decimal Fraction Soil Group B Decimal al Eraction Soil Group °� i Soil G up D � Decimal Fraction o rc ~OOO BESID8N?IAL0 - 4 BU/AL/ SCS Curve Number for Sczl(AMC %) Adjusted SCS Curve Number for AMC 3 52^0 Peryious ratio(AP) ,600 Max loss rata(EM)= . 47l(In/Hr) ` - 4 nU/AL'3 Subarea is RESIDENTIAL ( {r\itial subarea flow length = 205.000t.) Upstream elevation = 64,550t./ � 58,7A u�wnst�eam elevation 81 Elevation difference = 5 . (Ft./ Slope = .02834 S ].83 Tc = K( ,412)A[(Length~3)/(2!evat1on Change)]~00'. lnitial area time of concentration � 7.065 min" l00,00 Year computed �azn t d fail intensity = 5.414 In/Hr Effective Runoff Coefficient used for total area (Q=CIA) is C = .82� /7 /�� Subareazr = �^^�r —IotA—V It = .54(Ac./ za� s�r,y�o/ u,�� Pervious area friction = .6O0 Initial area FM value = ^4710n/Hr/ +++++++++++++++++++++*++^++++++++++++++++++++++++++++++++++++++++++4+++++++ Process from Point/Station I.00 to point/Station 3.0V 0.kh INITIAL AREA EVALUATION hAA. -_--------_----------_----_-_-_---------- -_--_------ ------_---_----_-_----- mn Decimal Fraction Soil Group A = 1.VoV _ Decimal Frac tion Soil Group B = .00o Decimal Fraction Soil Group C = r000 Decimal Eraction Soil Grnup b NEGID8NTIAL13 DU/W y / -"ile B8KlT100H/D.OUT[74,2] printed on 31 -Jul -89 09228155 GCS Curve Number for Soi1(AMC 2) = 32.0 Adjusted SCS Curve Number for AMC 3 = 52.0 Pervious ratio(AP) = .600 Max loss rate(EM)= .471(ln/Hr� r��^-_-^ -. �n'�`nzur`^' 'n - ^ o/,KAP . nvuu,�� ^� RuoIusn^�n� - Initial subarea flow length Upstream elevation = 64.55(Ft.) Downstream elevation = 62.570t.) . Elevation difference = Slope = .0132O S(%) Tc c K< '413K[(Length~0/01evation Change)]=0.2 Initial area time of concentration = 7.265 min, lOV.00 Year computed rainfall intensity = 5,324 In/Hr Effective Runoff Coefiicient used for total area (Q=CIA) is C = "820 , Subarea runoff = 1.398(Cy6/ Total initial stream area = .32(/Ac./ Pervious area fraction [nitial area FM value = .471(In/Hr) Paqe 2 +++++++++++++++++++++++++++++++++++++^+++++++++++++++++*f++++++++++++++++++ Pocess from Point/Station 3.00 to Point/Station 4.00 AAA STREET FLOW !RAVEL TIME + SUBAREA FLOW ADDITION AA -A ---_--_----'---_'------------- ----------_--------_-----------------_------ Upstream Elevation = 62.57(Ft.' 0ownstream Glevatzon = 61.210t,) Street Length = 330.00(Et,/ Curb Height = 8.0n.) ' Street HalIwidth = 25,000t.' Distance From Crown to Crossfa1I Grade Break = 10"00(Et.) Slope from Gutter to Grade Break Q/H%) = .020 Slope from Grade Break to Crown (V/H3) = .OlO Number of Halfstreets Carrying Runoff = ] Distance from curb to property line = 7.00(Ft.) Slope from curb to property line (V/H%) = .020 Gutter width = 1000(Et.) Group 0 = .000 Gutter hike from flowlzne Estimated mean flow rate at MIDPOINT of street = 3.494(CES) Depth of flow = .4030t,/ Average Velocity = 1°567(K/S) Streetƒlow Hydraulics at MIDPDlNT of street trave] - Halfstreet Flow Width = 14.65(Pt.) Flow Velocity = 1.57(Ft/S) bepthAVelocity Travel time = 3.0 min. TC = 10.77 min., Adding Area Flow lo Street 100.00 Year computed raznka11 intensity = 4.203 In/Hr Decimal Fraction Soil Group A = 1.00(.,! Decimal Eraction Soil 0roup 8 = .0O), Decimal Eractiun Soil Group C = .00� Decimal Fraction Soil Group 0 = .000 BESIDSNTIAL0 - 4 DU/A�.. ` SCS Curve Number for 5ozI(AMC 2) = 32.0 Adjusted SCS Curve Number for AMC 3 = 52.,0 '° -Eile 0SKl:100NYD,OOIC74,2] printed on 31-jul-89 09:29111. Page 3 Pervious- ratio(AP) = .600 Max loss rate(PM>= .471(In/Hr/ Effective Runoff Coefficient used for area (Q=CIA) is C = .79) � ! Subarea runoff = 2°901(CES> for .96(Ac.) Total runoff = 4.299([ES> Total area = 1.28(#c.) Area averaged FM value = .471(ln/Hr/ Depth of flow = .4300t.) . Average Velocity = ` Streetflow Hydraulics at ENDPOINT of street travel Ha1fstreet Flow Width = 17.0200./ Flow Velocity = 1.57(Pt/s/ BepthAVe1ocity ` ` ++++++++++++++++++++++++++++++++++++f++++++++++++++++++++++*+++++++++++++++ Process from Point/Station 3.00 to Point/Station 4.00 AAA` CONFLUENCE OF MINOR STREAM!:, 6V),: iOO.00 Year computed rainfall intensity = 4.203 In/Hr ALONG THE MAIN STREAM NUMBER; ] The flow values used for the stream: 1 are: Time of conmentratzon(min.) = 10.7? Rainfall intensity (in./hr/) = 4.20 lotal flew area (Acres) = I.26 Total runoff (CF9) at confluence poin't = 4.30 Area averaged loss rate (EM) = An Area averaged pervious ratio (AP) = .600 ++++++++++++++++++++++++++++++++++++++T+++++++*++++++++++++++++++++++++++++ Process from Point/Station 5.00 to Point/Station 4.00 AAA INITIAL AREA 2VALUAIION AAA --_-------_----------------_---_-_---_--------------_-----------_--_--_--_- ' Decimal Fraction Soil Group A = Decimal Fraction Soil Group 8 = ,O�O Decimal Fraction Soil Group C = ^�0A Decimal Practzon Soil Group U = .000 R2GIDSNIIAL0 - 4 DU/A[/ SCS Curve Number Cor. Soil<AMC 3) Adjusted GCS Curve Number for AMC 3 = 52^V Pervious ratio(AP) = .600 Max loss rate(FM)= .47I(In/Hr) Subarea is RESIDENTIAL (3 - 4 DU/A0 Initial subarea flow length = 97.000t./ Upstream elevation = 61.700t./ Downstream elevation = 61.210t.> Elevation difference = 2.49(Ft./ Slone = .02567 S(%) = 2.57 Tc = K( "412)A[(Leo9th~0/(8leyation Change)]~0.2 [nitial area time of concentration = 5.342 min. 0O.00 Year computed rainfall intensity = 6.403 In/Hr Effective Runoff Coehicient used for total area (Q=CIA) is C = .834 Subarea runoff = .641(CES) ^ Total initial stream area = .12(Ac./ Pervious Area fraction = .600 �File 9SK11l00HYD.0UI[74,2] printed on 3i -Jul -89 09:2033 Page 4 Initial area FM value = .47l(ln/Hr/ ++++++++++++4++++f++++++++++++++++++++++++++++++++++++++++++++++++++++f++++ Process from Point/Station 5.00 to Point/Station 4"0O AAA CONFLUENCE OF MINOR STREAMS AAA ~----------_~----_-------------------------------------_-_---_-_--_--^----- AAA Compute Various CVnfIuenced Flow Values! AAA _----_-_--------------------_---_-_-_----_----------_--.-----_-------------- i0O^O0 Year computed rainfall intensity 6"403 In /Hr ALONG THE MAIN STREAM NUMBER: ] The flow values used for the stream: 2 are: Time of concentrat1on(min") = 5.U. ` Rainfall intensity &in./hr/) = 6.4O ?oal flow area (Acres) = .12 Total runoff (CES) at confluence point .64 Area averaged loss rate QM) = ,40 Aqea averaged pervious ratio CAP) = .600 Confluence informatzo/ Stream runoff Time intensity Number <CPS) (min.) (znch/hour/ ` --_--_--__---------------_---_----__--__------------_-_-------------_------ - I 4.30 10.77 2 164 5.24 6.W3 QgMX<l) = ' +l,000A1,000A 4.0'' + .629Al.000A .6/ = 4 7 .'02 QSMQ2> = +1.589A ,496A` 4"3) +l^0000.0006 .6) � 4.O29 Rainfall intensity and time of concentration used for 2 streams. Individual stream flow values are: 4.30 b4 ' . Possible confluenced flow values are: 4.78 4"03 Individual Stream Area values are:� 1.28 .l2 Effective Total Area values are,'' l"40 .75 Computed coniluence estimates are: B 4 lzme(min,) = 10.774 Effective area as adjusted for time (Acres) = 1.40 Total main stream study area (Acres) Wota1 study area average pervious area fraction(AP) = .600 Total study area average soil loss rate(EM) = .47] Ad of computations. lotai st:dy area = 1.94(Ac.) The following figures may ` be used for a unit nydrograyh study of the same area. Note: !hese figures do not consider reduced effective area vile 8SKl:lOOHYD.QUTL74'2] printed on 31 -Jul -89 09:29:49 page � effects causeby confluences in the rational equation,. AREA AVERAGED PERVIOUS AREA Efv�ACIIOM(AP) = .600 ABSA AVERAGED SCS CURVE NUMBER = 32.� ADJUSTED SCS CURVE NUMBER EOR AMC 3 = 52.0 file BSK1.:l0HYD.0UT[74,2] printed on 31_Jul-89 09:29:56 SAN BEB@ABDINO COUNTY RATIONAL PROGRAM Copyrzgnt (c) CLv|1Deszgn/CivzlCadd, 1988 Rational Hydrology Study Date! 7-27-89 -------------- - HYDROLOGY STUD) TRACT 13411, 10 /8AB STORM CITY OF FO{IANA, COUNT! OF SAN BSBNABDINO_________________---------- _ IN THE Fraction Soil --------_~---------_------__---_------------_ ,SPECIFIED Decimal HYDROLOGY INFORMATION -4- --------------- ` ------------- 10,0 year ---__----_-_------_-----_-_-----_-_--_--- storm l hour rainfall I ches) = l.OOV ` < n Comp'uted rainfall intensity: (I_nches> = 1.O00O Storm year = l0.O0 l hour rainfall for Slope used for intensity curve = .600o ' Antecedent Moisture Condition(AMC) = 2 Soil ++++++++++++++++++*++++++++++++++++++++++++++++++++++++++++++++++*+++++++f+ Process from Point/Stat1on l^0O to point/Station Z,0O AAA INITIAL AREA EVALUATION ~^- ____ --_-----__---_------_---------_-_-__-- _-----+---_-__-~--_-__----------- ` Decimal Fraction Soil Group A = l.Vo, Decimal Praction Sotl Qroup B = .00O. Decimal Fraction Sail Group C = .O0� Decimal Fraction Gozl GrOup BSSIDSN?IAL(3 - 4 DU/A[./ So 1(�M[ 2) = 32 O SCS Curve Number for z �^~ l ra^~(�M)� 587(In/Hr) - = 600 Max loss ne ~ Pervious ratio(AP)^ ^ ^- `2SID�NIIuL �3 - 4 DU/AQ Subarea zs RESIDENTIAL `' initial subarea flow lenT�h = 205.00(ft./ Upstream elevation = 61 ,55(Et .) Downstream elevation = 58^74(Ft./ . ^/8l(�t Elevation difference = 5 Slope = .02834 S(%> = 2.83 Tc = K( .4I2)A[�Length`3)/(Slevatzon Cha6ge)3~0.2 initial area time of concentration = 7.065 min. 10.00 Year computed rainfall intensity = 3.609 In/Hr Effective Runoff coefficient used for total area (Q=CIA) .754 /7 �/^, o'ur '~Z ~ ~^ G b zz = 1.4694PSY Pervious area fraction Initial area EM value = .587(In/Hr) ++++.++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ ++++ ++++++ � l 0O to Point/Station 3.00 Process from Point/Station . W)'', AAA INITIAL AREA EVALUATION -.---------------_-------_-----------_--------_-_--------_---_-__---_------ D�cima l rac on Fraction Soil IWO" Group A = l VOv Fraction Soil Group B = .00O Decimal Fraction Soil Group C = .0OV Decimal Fraction Soil Group D = «000 BESIDENTIAL(3 - 4 DU/AL/ 32. 0 SCS Curve Number for Sozl(AMC 2) � File DSK1&10HYD"OU1[7A,2] printed an 31 -Jul -89 09:30:11. ' ^^-'^°` - a^: w -v l"`� r�tp(FM)= .587(In/Hr) Pervious ranzp\wr, ^~~- ^-'-'- Subarea is RESIDENTIAL (3 - 4 DU/AL/ Initial subarea flow length = 150.000t.> Upstream elevation = 64.55(Et^/ Downstream elevation = 62.57(Et.) Elevation difference = Slope = .01320 60) = 1.32 . To = K( .412K[(Lgn9th~0/(Slevation Change)] -0.2 Initial area timv of concentration = 7.265 min., 5 1000 Year computed rainfall intensity 49 In/Hr Effective Runoff o = 3 ^ ^ti 8 �� C e��icient used for total area (Q=CIA) is C = .75] ' Subarea runoff = .853(CES) Total initial stream area � .32(Ac.� Pervious area fraction Initial area FM value = .587(In/Hr' Page � +++++++++++++++++++++of+.+++++++++++++++++++++++++++++++++++++++++++++++*++ Process from Point/Station 3.00 to point/Station 4.00 AAA STREET FLOW TRAVEL TIME + SUBAREA FLOW ADDITION AhA ----------------------------------------------- --------------------------------- Upstream Elevation = Downstream Elevation Street Length 330.00(Et.) Curb Height - 8.(ln./ 25.00(�t.� Street Hal�width � ' o C t � ll G �e Break = lO O0(Et ) Distance From Crown ross a ra ° ~ !Slope from Gutter to Grade Break (V/H%) = .020 Slope from Grade 'Break to Crown (V/H%) = ^Olo ' Number of Halfstreets Carrying Runoff = l Distance from curb to property line = 7.00(Ft.) Slope from curb to property Line (V/HZ) = .020, Gutter width = 1.5000t.) Gutter hike from flowline Estimated mean flow rate at MIDPOINT of street = 2.133(CFS) Depth of flow = .353(Ft.) Average Velocity = l.364(Ft/5) Streetflew Hydraulics at MIDPOINT of street travel Halfstreet Flow Width = 12.17(Ft./ Flow Velocity = i.3kpt/S) DepthAVelocity .48 travel time = 4.03 min. IE = I1.30 -~ Adding Area Flow To Street `| 10~00 Year computed rainfall intensity 2.724 In/Hr ! Decimal Fraction Soil Group A = l.000 Decimal Fraction Soil Group B = .00O Decimal Eraction Soil Group [ = .O0� � ^� Decimal Ersctipn Soil GrouP D = .000 B'SID8NIIA�(3 - 4 DU/AC/ - [-| SCS Curve Number for Soil<AMC 2> 32.0 I � ! Pervious ratio(AP) = .600 Max lots rate(EM)= .587(n/H r) Effective Runoff Ccefficzent used for area (Q=CIA> is C Subarea runoff = 1.608(CES) for .96(Ac.> r` lFile DSKl:10HYD.0JT[74,2] printed on 31-]ul-89 09130:29 Page 3 ' Total runoff = 2.462([FS) Total area � Area averaged EM value = .507(In/Hr) . Depth of flow = .3671Ft./ Average Velocity = 1.421(Et/S) Streetflow Hydraulics at ENDPOINT of street`traveJ Halfstreet 51ow Width = 12.85(Et,) Flow Velocity = 1.36(Et/6) DepthAVelocity = ,50 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*+++++++++++++ process from Point/Station 3.00 to Point/Station 4.00 AAA CONFLUENCE OF MINOR STREAMS) AAA ------------------------------ -------------------------------------------- - ------------------_----_----_---_--_---------_------------------^------_--- ' 10.00 Vear computed rainfall intensity = 2.724 ln/Hr ALONG THE MAIN STREAM NUMB8BI 1 The flow values used for the stream: l are: � Time of ooncentration(min.) = 11.30` Rainfall intensity \in./hr/> = 3.7z: Total flow area {Acres) = 1~28 Total runoff (CES) at confluence point = 2.46 Area averaged loss rate (EM) = .587 Area averaged pervious ratio (AP) .600 ++++f+++++++++++++++++++++++o+~++++++++++++++++++++++++++++++++++++++++++++ ' Process from Point/Station 5.00 to Point/Station 4.00 Ahk INITIAL AREA EVALUATION AAA. 0ecimal Fraction Soil Grouq A = l.000 Decimal Fraction Soil Group B = .00o Decimal Fraction boil Group C = .�O0 Decimal Eraction Soil Group b = .000 BESIB2NTIAL(3 - 4 DU/AC) SCS Curve Number for Soil(AMC 2) Pervious ratio(AP) = ^600 Max loss rate(EM)= °587(In/Hr) Subarea is RESIDENTIAL (3 - 4 DU/AC/ Initial subarea flow length = 97^00(pt.) Upstream elevation = 63,70(Ft./ Downstream elevation = 61.21(Et.) Elevation difference = 2.49(Ft.) Slope = .02567 S(%) Tc = K( .412)A[(Length~0/(Elevation Change)]~0.2 initial area time of concentration = 5.342 min. 10,00 Year computed rainfall intensity = 4.268 In/Hr Effective Runoff Coefficient used for total area (Q=CIA) is C = .776 Subarea runoff = .398(CES) Total initial stream area Pervious area fractzon = .600 Initial area FM value = .587(ln/Hr/ +++++++++4++++++++++++++++^++++++o++++++++++++++++++f++++++++++++++++++++++ Process from Point/Station 5.00 to Point/Station 4.00 Vile 0SK1:10HYD.0UT[74,2] printed on 31 -Jul -89 09:30:50 Page 4 � ' hAA CONFLUENCE OF MINOR STBEAM��' AAA l-------------------------------~---------------------------~--------------- AAA Compute Various Conflaenced Flow Values /,h-�- -_------_-----~----_-_----_--_--------__-^----_------_---~-__-----_----_---- lO.00 year computed rainfall intensity = 4"268 In/Hr ALONG THE MAIN STREAM NUMBER: l , The flow values used for the streams 2 are: Time of concentcatzon(min.) = 5"34 Bainfall intensity (in./hr/) = 4.27 Total flow area (Acres) = .12 Total runoff (CES) at confluence point = .40 Area averaged loss rate (EM) = .587 , Area averaged pervious ratio (AP) = .600 ^ � Confluence information:: ' Stream runoff Time lntenszty Number iCFS) (min.! (inch/hour� ----------------------------------_---_-_--_-__--____------------_--------_- l 2.46 11.30 2.72� 2 .40 5.34 4.26G QSMX<l) = +1.000Al.000A 2.0 + .580Al.000A .0 QSMX12Y = ' +l,723A "473A 2.5) +1"000Al,000A ,4) = 2.403 . Rainfall intensity and time of concentration used for 2 streams. lndividua1 stream flow values are: 2,46 .4") Possible coufluenced flow values are: 2.69 2.4D Individual Stream Area values are,.' l"20 .l2 Effective Total Area Values are: ' 1.40 .73 Computed confluence estimates arn Time<min.> = 11.296 pf ted yor time (Acres) = 1.40 Total main stream study area (Acres) = 1.4C, Total study area average pervious area fraction(AP) = .600 Total study area average soil loss rate(EM) = .587 End of camputatzons, total study area = 1.94(Ac.) The following figures ma}^ be used for a unit hydrograph study at the same area. #'te: These figures do not consider reduced effective area effects caused by confluences in the rational equation. AREA AVERAGED PEBVIOQS AREA FRACTION(AP) = .600 AREA AVERAGED GCQ CURVE NUMBER = ~32.0 ADJUSTED SCS CURVE NUMBER POB AMC 2 1 32.0 �' J /�"•r- I \L I I 'h Ld It cr- j-1 Al I VA C. T —77 ' �� K.y }•t�•,`•...:��'-j .^.1 .I i z 1 I i zl I 'i �h• � —. —.8 i' / I'�,+ ,} )� • t • . I }- � .4 ---z{;•;� '�-I .. �- ,:'-� : �' Vii••`. 1 -�s� � I. � I I 'I ' .'^, •� I' • 1'I , I r ' _ � �' � ', �I�Yf I I r 1 � ' , I• I :: I � `.. 1,- Ir..! ._ __ ;r_ .1.'-L•- I`�.I _i .- I . I / .,..,� w u , = y m c 175 + �, -r- - T--r- -�ol•e I` I'� �I I�i-lt,,.•t-- � _il II l .I� � yIx Ew >:.1a r� --r 1 +� :` • I I ' I -k I 1 - I .:. •,:K � , . it s + fl' �'. •� •+•---..o,�a�.��----....� , I • � J - + ,•I I+ ' 1` I I'1' I , 'al I , ..\l; - - � �- T- '� � v - C r. I I I I ` I. ( y� C f + •�� C� .. SI •• I . �'1 ., � N �A T i 1 m 1 i ` -t ) I 1 �' I ' I ,}- y 1 � f• I� I i '�• ;I � � i 1 I 4r ' I I 1 r. � rl L.•rJ\ 3 1 ;r �I*ti/, - s� i• � l '. T j Irk I 14 \ �) �I 1 � � tG ;:. R ; � •I � � q ^ i I 0 1.. , #. Tt 4 1 It aL ..'V— ):-4 •0 1� I INI W O JAJ i _ '•�+ y> + "l -i - r" 1- tg Cf.�z— a +.e, �y \i. I• •N.... •I I I I /. �I I� I _• cr - {�•' 1.. Il •r w.V. II i 1y. e.! •' .' ., •�1 ' !• 1 4 i�l ,• , X, i- ' �••� 3 t-" —+ t. —I— - -'k — - I� I' ;. .� (J ,1., _I__ { - _ i. l � -�l i irr- I �> I- I - t 1• ! I l a l I I JI ' I I � 1- I ._ ( r!�•: k'. � 1 -) I I �+- -t- _ -i -l� I--I - -� - I_ h.I_ - -"'� -�' i \ + L�• .t-- 1{.t,'7 N Ir +'I M♦ I f STREET HYDRAULICS ----------------- i. Sierra Engineering Job No. -Date CIVIL ENGINEERS I LAND SURVEYORS - LAND PLANNERS // DIVISION OF PROJECT 2000, INC. 27007 FIFTH STREET ;heet of EXHIBIT "A" o < I -f ! / d/ ,I? N h. \ I � 3 — �� oo sz o0 � CL c m ,O& 41 --� c N 3 — �� oo sz o0 � CL c m ,O& 41 Bill ' %xi 6i T A KING CIVIL ENGINEERING CORP. f J 101 S. Kraemer Blvd. #225, Placentia, CA 92670. 714-996-7010 7-cn/T.4 71V25-���9G7- /t/ ` / 7 e// - Ur r/moi✓ �c v�Eti *F7-111 Z \\ 41 X33 Q� ------------ So /, 61774 14 OZ G��l7rlq..� 0 s so La J. ��Fr � Gy f /`'�`•J /1 ice, L- Z = Q J X � X G. 2 � �' � �� _ � • �o � cf�. . 3q- //j S _0 � �• 37 r C1 ff//3/ T �AI1 CIVIL ENGII:EEFINC- L G. Cf /) rCtl�r. /�gS-oL p•io Z.73 t. 7 9-2 3,2r 7-f ��Fr � Gy f /`'�`•J /1 ice, L- Z = Q J X � X G. 2 � �' � �� _ � • �o � cf�. . 3q- //j S _0 � �• 37 r C1 ff//3/ T �AI1 CIVIL ENGII:EEFINC- L G. U Sierra Engineering CIVIL ENGINEERS • LAND SURVEYORS • LAND PLANNERS DIVISION OF PROJECT 2000. INC. August 29, 1989 City of Fontana Engineering Department 8353 Sierra Avenue Fontana, CA 92335 RE: Tract 13411 - Drainage Release Gentlemen: I hereby certify that I am the owner of Parcel 240-161-25 & 26 and agree to accept the drainage waters being discharged from the South 10.00 feet of Tract 13411 and consent to the necessary grading thereto, understanding that this may necessitate the construction and maintenance of a small drainage ditch to take care of said waters. I do further agree to hold the City of Fontana free and clear of any damages arising from said grading. It is my understanding that all expenses in connection herewith shall be borne by the Subdivider. Very truly yours, -� Raul Madrid NM/nr 88-024 (714) 862-9400 27007 FIFTH STREET • HIGHLAND, CALIFORNIA 92346 V STATE OF CAILIFORNIss. COUNTY OF—_-AZz-2. C1 E 0 .,before me, the undersigned, a Notary Public in and for said State, personally appeared M E t peisonally -known to -me (or proved to me on the basis of satis- LL factory evidence) to be the person(g)whose name] is/are sub. see ------ OFFICIAL -SEAL 10 .7 scribed to the within instrument and acknowledged to me that NORMA J ROM -NOTARY • PUBLIC -CALIFORNIA C he/aheitthey executed the same. 6ownito OVITY 00 WITNESS my hand and official seal. Y toW EXP. FEB. 16, 1991 D 0 oc 7 Signature (This area for official notarial seal) Q Order No. Escrow No. Loan No. WHEN RECORDED MAIL TO: City of Fontana Public Works P.O. Box 518 Fontana, Ca 92335 MAIL TAX STATEMENTS TO: NIA SPACE ABOVE TMS LINE FOR RECOROEn-S USE DOCUMENTARY TRANSFER TAX i —0— •••••• Computed of tha eexulder a tion or value of property cornreyed; On ...... Computed on the consldaratlon or value leu liens or anclrmbrervcas rerunning at time of We. Slervat­e of 0a 1,xranl or Agent da Nrminlne V. — Firm Name EASEMENT DEED FOR A VALUABLE CONSIDERATION, receipt of which is hereby acknowledged, Carrie Hill hereby GRANT(S) to City of Fontana, A Municipal Corporation the real property in tho City of Fontana County of San Bernardino , Slate of California, described as An easement for storm drain purposes over, upon, and across the West 61 feet measured from the centerline of Mango Ave. of the South 90 feet of the West 5 acres of the South �- of the North. of the North Bast k of the South West '� of Section 32 Township 1 North Range 5 West. and maintaining Said easement allows the placing thereon fan 18 inch pipe to be placed in the eartand covered with at least 18 inche§ of dirt. Also a slope easement over the North 15 feet of the south.80 feet of the west 5 acres of the south )4 of the north � of the north east k of the south west k of Section 32 Township 1 North Range 5 West. Said property for the lateral support of a block wall to be built at no expense to grantor. I STATE OF CALIFORNIA lei Cvut,tTy ac I L G Carrie Hill I yR Ld� i7y P SS<'� jtLtiA 1 iurear) ATE OF ILY COMI.IONWEALTH LAND* U. ^CALIFORNIA `_\ •� S5. not rrAAANu conPAW . COUNTY OP� Ing , i A)) n LS l q4g berOr a Notary rublle In and for scald State, personally•pr.cared A.v sf t�LL� perron•Ily (known to mel for prover! to me on the bufa of -fish Ctory evidcnml to be the person whose name u —Ilwrihed to the within I neLru- meat. as a Witney thereto, who being by ma duly •worn, drpoats and uya: Thal.�i�_rr•idea In _L_)�a .L ,.ro ��.-�...r �.>LZ.1, e11 ,andd-, VAE wa•pr,tentanduw -'It, -.7-22- \ u \ -� t c.1-. , perwnally known to BI K b_beptive wma per•onLdeecribed In •nal who.e name IS •ubecrt.od to the within and annexed In.trumenl n I �C„ iR Part hereto, execuLe and deliver the acme, and '114 'e acknowledged touid affiant that F executed the same; and that said affiant •ubavbed name thereto as a Witney. OFFICIAL SEAL WI NE, y hand and official K GLEN T BILES �Q NOTARY PUBLIC - CO"'Ty 1A $lgnafurr=l�1' LOS ANGLIFS COUNTY ¢ Aly comm, erdres IIIN 2. 19119 EXHIBIT "B" 1. CATCH BASIN DESIGN 2. WATER SURFACE PROFILE !"I t AAA* AA*A0-AA+AAAA AAS k kAAAAAAAAAAAAAAAtAA A**AAikikikAAAA*akAAA;k;kAAA*AAAA kA AAAAA* STREET FLOW CALCULATIONS *****A- ******************A***************AAAA-k:k********************A.A.AA k*****AAA 7k - -A CALCULATE DEPTH OF FLOW GIVEN: Street Slope = .005700 (Ft../Ft.) _ .5700 % Given Flow Rate = 4.70 Cubic Feet/Second AA OPEN CHANNEL FLOW - STREET FLOW AAA Street Slope (Ft./Ft.) = .005:' Mannings 'n" value for street 15 Curb Height (In.? = G. Street Halfwidth (Ft.) = 25.00 Distance From Crown to Cra_=_fall Grade Break. Slope from Getter to Grade Break. (Ft./Ft.) = '31ope from Grade Break. to Crown Ft./Ft.) = Number of Halfstreets Carrying Runoff = Distance from curt to property line (,Et.) _ Slope from curt to property line (Ft./Ft.) = Gutter width (Ft.) = 1.500 flutter hike from flowline (In.) = l.6a0 Mannings 'n' value for gutter and sidewalk. = Depth of flow = .387 (Ft.� Average Velocity = t./Sec.? Streetflow Hydraulic= Halfstreet Flow Width(Ft.) = 13.87 Flow Velocity(Ft./Sec.) _ -1,.-14 Depth*Velocity = .83 Flow rate of total street channel = Flow rate in gutter = 1.42 (CFS) Velocity of flow in gutter and sidewalk. Average_ velocity of total street channel (,Ft.) = 10.00 .020 .010 7.00 .020 .01:3 4.70 (CFS) area = 2.580 (Ft./Sec.) 2.341 (Ft./Sec.) Job No.%'��y�^� Date Sierra Engineering �,toAc- i34ii CIVIL ENGINEERS • LAND SURVEYORS • LAND PLANNERS DIVISION OF PROJECT 2000. INC CATc�/ &6i.0 By Sheet of_�_ , - - - -I { .. u N -+ .a O a. } ) T •n - - 1'a O IU CU N Wl . Z ,n .. 0.. Iv) Y) <r. c• Q Y+ W J n. O N N Cr) � l•1 G• X '- �, v ;1• y. r >. .D 4 l• X x 47 ? G. U3 In a . tU CO OlJ W •7 1n rn , z z a a (,) O N V =3 � •� Q O z a r7: z �, O a. T •n h1 •D � In ;1• y. r O H.+ HW Z r-• m t•I U) a .A r .-1 o -• z o �' H .., O -T ••a . r•) H �• ti v H O w. o .. W N 1I O [] .r N r O ••I rl v of oa ..1 ttl Z z •;• 7. 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W ..l n Z ..1 W N O W z 47 —M z T 47 H M W Q h ¢ a u 2 c. •d ulaw a u) .r H L) F. o NH crx s: .. -. l•i rl Md 7 410•D ..Am rp V. 01 1C,,47 a ..T U) t•) r3 „)v -T j') u1.9h y)lD 6• - WH Ltl C9. a. •7 CD Cl tiD O T CD r'4 �D p VM Cl 'D O ? G+ M 47 M M c, -. Ir) Q• M N •-. 47 G'• •r fD C 1 •9 J 7 W N .D ID Q M N 'D 0r M 04 > .•. H ••. .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . U) ¢ z as Q w •-• O N u7 n O N v n G+ N v t7 ff• .-• C .D GO -: In .D •ID O M N ID 9 N C/7 n O N T c. Cil C•1 T lz Q• .a •r 19 ; .••I M •a CD .-r M 47 CU) '-' r-) 3 x Y W 47 •D n CP O .4 N M 10 %D L`. CD '7 .+ N M N .D n o 7 .•a N M In .D N CD ? .4 N M T %911100 G• ra ri M T a9 N W T rI N M W CA V) h N P. A W W 00 W M CD x CD ^ CI• G'• 01 1- Gv T a- 0 0 •s CP CO 0 0 0-4..q —. .+ —• .•4 .•aC4 Cl N N Cl N N N M M M 0 n 11 IC 11 n -. -• + -..+ .. r . I , / -.. a -+ + -+ I -+ , I .� .. r4 N rl t 7 r) N N N rrt r1 ' 4 Ci N N N Cl rl C`l N Ci r4 C9 N N N N N Cl H ..l L' '-•L3 3 x rL O � rh .4 H U Q K r`) A 00 W 4) H H G` O a m m w I m 7 H I 7_ W ra �. Q C T O a n � J M t7 C is H .4 IV. a W K 6 : W H :a O 0 4 �) �+ C7 W O V) a Hzwz t. w +n Q L) +-+ + Av)az0 H ¢ O � axzx 7 L' uwHm zO T'mW W W 0 �^ w 0 Lx ca=�aacn a W CL•"a z x M is: 2 O r+ w r � (A 3 — Y H U+ 11 +1 11 N 4 O H W wW. r rn d 'L � Sierra Engineering CIVIL ENGINEERS • LAND SURVEYORS • LAND PLANNERS DIVISION OF PROJECT 2000. INC. TRACT 13411 IS TABLED IN`T'O EXISTING DETENTION BASIS ON TRACT 13230 PER CITY OF FONTANA PLANS FOR DE'T'ENTION BASIN OF WALNUT VILLAGE SPECIFIC PLANS AND PER REQUEST OF THE CITY OF FONTANA (EDGAR) BACK ON FEBRUARY 1, 1989. PROJECT 2000 INC./ SIERRA ENGINEERING (714) 862-9400 27007 FIFTH STREET • HIGHLAND. CALIFORNIA 92346 L Sierra Engineering CIVIL ENGINEERS • LAND SURVEYORS a LAND PLANNERS DIVISION OF PROJECT 2000, INC. August 29, 1989 City of Fontana Engineering Department 8353 Sierra Avenue Fontana, CA 92335 RE: Tract 13411 - Drainage Release Gentlemen: I hereby certify that I am the owner of Parcel 240-161-25 & 26 and agree to accept the drainage waters being discharged from the South 10.00 feet of Tract 13411 and consent to the necessary grading thereto, understanding that this may necessitate the construction and maintenance of a small drainage ditch to take care of said waters. I do further agree to hold the City of Fontana free and clear of any damages arising from said grading. It is my understanding that all expenses in connection herewith shall be borne by the Subdivider. Very truly yours, %r R ul Madrid NM/nr •88-024 STATE OF CALIFOj3�NIA les. o COUNTYOF_.5Ann_ U0n__Z�14.� ec,S 9 / / O —.before me, the undersigned, a Notary Publlc In and for sold State, personally appeared IZ u C personally-hnownJo-mu(or proved to me on the basis of sells- i factory evidence) to be the per son() whose name(It) Ware sub- M-eM� Off ICIALUAL NORMA J ROYAL j scribed to the wlthln instrument and acknowledged to me that NOiAAT ►LIOLIG CALIFORNIA helit"they executed the same. `. SAIL W}4MI11J O0T r MY UF1M. EXP. FEB. i6, 1991 ro WITNESS my hand and offlclal seal. Slgnslwe D 714---'���c-J (this area for official nolarlal sesq a 41 (known to mel ( ie eketitlftrcMery ev;detiec+}�to bo the ptrooa whom nameaubec--b to the within instiumont and acknowledged that txtcu" the "tnt. WITNESS v hand and of ' 'QI seal. n �1•; \ OFFICIAL SF•AXr Signatu•r l � GLEN T 611L5 } NOTARY PUBLIC - CALIFORNIA ' Lt)5 ANGELES 00VN; comm, explms JUN 2, 1989 v; t Fo"m 3213 (CA 12.M rM a," for #/W r ariJlw.I) ' • - .. •i.••.. • .�1 ^'tom ' .• (.".,•:` • .. . ' '. ,,\11�:: :'�"Y, �•lyy�",1. •• ••'l•a,�',i t'! is •,+•.. ,`,•t'. •. �:.,,�;�t:�~�:'_ _ .• ^4;::.'c c ;..'f.•'•' ,:1"' .wtl��*r'.;�,"j.: 4;r..:;. .yam ..l 1i • b' .:4• • • - 4•�•;. .: .• nr+l + a•Ait v v • t:.;.Ir,' .♦1 �,f '.r. .F-:.: .. .. �{ a Yatiif...''•J'.•.. .�Y• .7• .:i ' ;i. 'N �f"•3•'� .. •yta: ij' :' i.'t:•'�. �, .,.: �ir4.a;-:tw�t,�,'• =" 4 • ' •fir: `.. .1 :. +K • i ,`. �.�•• .:� •.- ' t i ,,t ... t.: ,;�j eA `YIC:. 1-w.:`;: M' Wit' '} ., y • _ :`�. �; •4,' ,. , `•I l "r i�� �: • , i A:: � ; t•°', . M r ' .:-L•:.7 z"�•:4' ?:�� :.ta q•�. ''. -I».,J i•r• •. ,, 1 .••:. .' .. >.. .1. �••: t.:l. :f: •T;j: • •j. ,r '•t.'c•• ' .. :. , • • { , iX: •'• :' •.t' t .. •1�::.lyi, A ':: 4�(.;;, Y.�f� ••� T` iNa .j ti'p�?y`1 1�y1;M1y 'iAV. t •.'1. •'i4'.T .t aC ,• t. .... .. .. ' A.:. r ,}•t:.; ter. -If,.,. ��'•" iii •� �f'"� -:':_•.i.:::..:.:•a:,it�r I �• (IodividuRl) J STATE OF CALIFORNIA t ' P a ft- COCNTY OF ' before me, I—Ci N_l a Not&ry Public in and coir amd State, ptl'aoaRlJy Rppcartd , (known to mel ( ie eketitlftrcMery ev;detiec+}�to bo the ptrooa whom nameaubec--b to the within instiumont and acknowledged that txtcu" the "tnt. WITNESS v hand and of ' 'QI seal. n �1•; \ OFFICIAL SF•AXr Signatu•r l � GLEN T 611L5 } NOTARY PUBLIC - CALIFORNIA ' Lt)5 ANGELES 00VN; comm, explms JUN 2, 1989 v; t Fo"m 3213 (CA 12.M rM a," for #/W r ariJlw.I) ' • - .. •i.••.. • .�1 ^'tom ' .• (.".,•:` • .. . ' '. ,,\11�:: :'�"Y, �•lyy�",1. •• ••'l•a,�',i t'! is •,+•.. ,`,•t'. •. �:.,,�;�t:�~�:'_ _ .• ^4;::.'c c ;..'f.•'•' ,:1"' .wtl��*r'.;�,"j.: 4;r..:;. .yam ..l 1i • b' .:4• • • - 4•�•;. .: .• nr+l + a•Ait v v • t:.;.Ir,' .♦1 �,f '.r. .F-:.: .. .. �{ a Yatiif...''•J'.•.. .�Y• .7• .:i ' ;i. 'N �f"•3•'� .. •yta: ij' :' i.'t:•'�. �, .,.: �ir4.a;-:tw�t,�,'• =" 4 • ' •fir: `.. .1 :. +K • i ,`. �.�•• .:� •.- ' t i ,,t ... t.: ,;�j eA `YIC:. 1-w.:`;: M' Wit' '} ., y • _ :`�. �; •4,' ,. , `•I l "r i�� �: • , i A:: � ; t•°', . M r ' .:-L•:.7 z"�•:4' ?:�� :.ta q•�. ''. -I».,J i•r• •. ,, 1 .••:. .' .. >.. .1. �••: t.:l. :f: Recording requested by City of Fontana When recorded mail io City of Fontana (Publ3.c Works Department) P. 0. Box 510 Fontana, Califurnitt 929]5 Raul Madrid Documentary Tax Due $ By: (Grantors) t i0R A.VALUAALE CONSIDEP.ATION, receipt of winch is hereby acknowledged Do Hereby Grant to the CITY OF rONTAIIA, a Municipal Corporation, the real property in the City of Fontana, Cw oty of gan Bernardino, State of California, described as follows! ' See Exhibit n — I Dated this day of ��, 19 ACKiroWLEDGMENT OF GRAIrrOR! STAIE OF CALIFORNIA ) $S COUNTY OF SAN BERNARDINO) On before me, the undersigned, a Notary Public in and for said County and State, personally appeared narsonally knowt.,to me (or proved to 'me vn thelhasis of satisfactory evidence) to be th,- ooraon_ wh000 game_ subscribed to tile within inst-otnent, and acknowledged to me that executed it. m 0 This is to certify that the interest in real property conveyed by the within instrument to the City of Fontana, Cali- fornia, a ov nicipal corporation, is hereby accepted by order of the City Council on and the Grantee consents to the recordation thereof by its duly -authorized officer. Byt CIYY OF FONTA2iA Parcel No. 240-161-26 0 EXHIBIT "A" AN EASEMENT FOR ROAD PURPOSES Ill THE CITY OF IN THE CITY OF FONTANA, COUNTY OF SAN BERNARDINO, STATE OF CALIFORNIA DESCRIBED AS FOLLOWS; BEGINNING AT THE CENTERLINE INTERSECTION OF WALNUT VILLAGE PARKWAY AND MANGO AVENUE; THENCE, S 00'02104" E ALONG THE CENTERLINE OF MANGO AVENUE A DISTANCE OF 461.49 FEET TO THE NORTH LINE OF PARCEL MAP No. 243 RECORDED IN PARCEL MAP BOOK 2, PAGE 81; THENCE, 11 89'5626" E ALONG SAID NORTH LINE A DISTANCE OF 663.59 FEET TO A POINT 10.00 FEET WEST OF THE CENTERLINE OF BLANCHARD AVENUE, ALSO BEING THE TRUE POINT OF BEGINNING; THENCE S 00'04122" E A DISTANCE OF 60.00 FEET; THENCE, N 11'22'56" W A DISTANCE OF 61.19 FEET, TO THE NORTH LINE OF PARCEL MAP 243; THENCE, 11 89'56126" E ALONG SAID NORTH LINE A DISTANCE OF 12 FEET TO THE TRUE POINT OF BEGINNING. SAID ABOVE DESCRIBED SLOPE EASEMENT CONTAINING All AREA OF 722.21 SQUARE FEET OF LAND MORE OR LESS. ENNIS ii. DILLMAN L.S. 5424 _ L 6.onoivt 6424 = "/""Or CAI 01\\\`$ Parcel No. 240-161-26 .v- S. Slb'OL Gti :E 0 /. 49' i Q P,, -\RC JMAP C5 �v W . I v I SOd' 0422 "E O8' I ```"�uiunmugq L L.B.siaone 5424 = • � _ LL`�Ll2t/S ii' D/.f.[�/.ON .0 S• 54 24 ��''��i� � CA1.1F`������ CITY OF FONTANA. CALIFORNIA I Arp,c,,d I Pmr«l No. 240-161-26 DEED PLAT _ � �•,�� �„