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PONDING ROCK STORAGE TABLE 1: FLOW CALCULATIONS DMA BMP ID# TOTAL DRAINAGE IMPERVIOUS PERVIOUS SWQDv (CF) BMP PROVIDED FOOTPRINT FOOTPRINT DEPTH SECTION VOLUME DRAINAGE AREA INFORMATION TIME OF CONCENTRATION RATIONAL METHOD LEGEND # AREA (SF) AREA (SF) AREA (SF) REQUIRED (SF) PROVIDED (SF) (IN) DEPTH PROVIDED TOTAL TIME OF 10 YR RUNOFF (IN) (CF) DRAINAGE ITERCEPTED INTERCEPTED RAINFALL - - PROPERTY LINE / RIGHT-OF-WAY LINE CONCENTRATION "T" FLOW"Q" COEFFICIENT u AREA ID AREA"A" (SF) AREA"A' (AC) INTENSITY"I' o (MIN) (CFS) "c" SD PROPOSED STORM DRAIN LINE V) A TC-32 11391 7506 3885 314.96 BIORETENTION 261.84 300 0.5 12 405 DMA-A 11,391.00 0.26 15.00 1.20 0.25 0.80 Q LONGEST PROPOSED FLOW PATH DMA-B 4,073.00 0.09 15.00 1.20 0.09 0.80 B TC-32 4073 3722 346 185.52 BIORETENTION 88.14 90 0.75 18 189 DMA-C 5,623.00 0.13 15.00 1.20 0.12 0.80 DENOTES DRAINAGE AREA BOUNDARY ADJOINING SITE STRUCTURES PER PLAN 0DMA-D 8,292.00 0.19 15.00 1.20 0.18 0.80 OVERFLOW T C TC-32 5623 5048 575 247.43 BIORETENTION 153.26 175 0.5 12 288.75 DMA-E 3,836.00 0.09 15.00 1.20 0.08 0.80 2-4" OF DRAIN MULCH STANDARD DUTY SIDEWALK CONCRETE E DMA-F 4,715.00 0.11 15.00 1.20 0.10 0.80 _q 0 0 0 D TC-32 8292 7030 1262 330.44 BIORETENTION 204.66 215 0.75 12 344 DMA-G 2,573.00 0.06 15.00 1.20 0.06 0.80 Q0 >, d � O o / I ItA < G G TOTALAREA 0.93 TOTALQ 0.89 I a HEAVY DUTY CONCRETE PAVEMENT E N/A 3836 2501 1335 104.68 BIORETENTION 85.65 87 0.5 12 117.45 - - - - ^ a III=III-III-III-III-III-III IIII=III=III=111- o 1=1 11=1 11-1 11-1 11-1 11-1 11-1 I I I 1=1 11=1 11=1 11=1 I I:to-) w 3 18" MIN. SEE G 11 I-I I I-I 11-111=111=1 I M I I 11=111=111=111=111E V) -III' w w W F N/A 4715 3433 1282 148.75 BIORETENTION 155.78 156 0.5 18 288.6 1=III=III=III=III=III-III-II III-III-III-III-III:w 1=1 a LANDSCAPE/PLANTER AREA c -0 TABLE A FOR 11 I III-III-III-III=1 I I I I=1 I I=1 I I=1 I I=1 11= III SELF MORE I N FORM ATI oN I-III-I -111=1 11=1 11=1 11=1 I N G TC-32 2573 0 2573 N/A SELF TREATING N/A N/A N/A N/A III-III- 11=III=III=III-III 11=III=III=III-III-I. III as 0 TREATING a G 1=III=III III-III-III-III-II III-III-III-III-III-III=1 GRAVEL PAD (RIP RAP) III=III=11 III=III=III=III II-III-III-III=III=III III Q 12" MIN. SEE TABLE A, O O O o O O CD o THIS SHEET FOR STANDARD DUTY ASPHALT CONCRETE PAVEMENT V) TABLE 2:TI ME OF CONCENTRATION CALULCATIONS MORE INFORMATION TIME OF CONCENTRATION OVERLAND INFORMATION PIPE INFORMATION VELOCITY(MANNINGS EQUATION) FLOW INFORMATION 6" PERFORATED HEAVY DUTY ASPHALT CONCRETE PAVEMENT Q TOTALTIMEOF WRAP SIDES IN 30 MIL OVERLANDTIMEOF OVERLANDTIMEOF PVC PIPE (.D >1 TIME OF CONCENTRATION OVERLAND SLOPE 2-YEAR,24-HOUR PIPE AREA SLOPE"S" LENGTH OF MANNINGS HYDRAULIC VELOCITY TOTAL FLOW IN PVC NON-PERMEABLE 0 - CONCENTRATION CONCENTRATION FLOW LENGTH (LF) MANNINGS"n" PIPE DIA. (FT) z C CONTRIBUTING DMAS 1' OF 1"-2.5" ) (FT/FT) PIPE(FT) "n" RADIUS"R" 'V' (FPS) PIPE(CFS) LINER "Ti"(HR) "Ti' (MIN) BIORETENTION AREA ">1 ITP" (MIN) OUTFALL DIAMETER STONE FURTHEST NN 2-4" CALTRANS CLASS 0 o HYDRUALICALLY 2.050 5.56 0.0585 3.5074 114 0.01 0.82 0.011 1 0.785398 0.012 610 1.49 0.013 0.25 4.96 DMA A,B,C, D, E, F 0.89 2 PERMEABLE MATERIAL N n o DISTANT POINTPROPOSED SURFACE FLOW DIRECTION 0 a 1.5 PLANTING Ntlii o MEDIA PER Q PLANTING MEDIA N TECHNICAL PROPOSED STORM DRAIN PIPE FLOW DIRECTION SPECIFICATIONS o BIORETENTION SYSTEM 0 N.T.S. �.� EXISTING SURFACE FLOW DIRECTION Q) - Q3 � o � 3 � � I L � C) E U N IIIU N � Q I I w � � U p N ROPOSED CAT `-; PROPOSED CATCH 0 0 TCH Q - BASIN WITH INLET R LE LET FIBER w0000 z ' ' ' ' Q > ° p ry St N a a a a a a a a a a p jp j p a a a a a a i d V I p I co N 3 o P DN C� I CLEAN CLEAN CLEAN A I N AIR/ AIR/ AIRI VANPOOL/EV VANPOOL/EV VANPOOLIEV I E FIBER o -, DMA C DMA B p I N V) U -i I 0.09 AC Q 0.14 AC p \ DMA D - G G G j o ,° ° 0.18 AC , ° DM E w 0 N _- a co Q 0 EIS as °EIS v \,0 \, p 0.09 C ~ N Z U 7 \ p w\ i p Q 0 ■ i ° \ i i 3 3 3 3 ^ / p a a a j � a � � � � n�IHl pD p w QLn Q) I- F- 3Af �:I c a � PIPE FLOW 610 LF7 w w w °1 I ° N U IY d o 0 0 o o i 0 0 or o o 0 T7 w a a Z (n 0 \ p T 3 3 3 3 i U -' W Q 3 \ -71 I W Oj j a b j j V a a a a ° BAS(N WIT I L T FIBER v 7 O W I i I d v v a a 3 3 3 I j a a a Q N -7 j j j � v y � � LL � � � pa 10000000010, LL W i a s , o� DMA ° U - a o _ o 0.23 AC DM F Q j �J, - o0 000 C 7 v _J v E a o ° a a a a a � � � 3 � ° - � 0.13 C ��\ w� p N V -7 p a ° o 0 ° i p v O p p --t \ r 0 3 3 p v v c > a f� ,0, IN DMA G a \ ° ° v p p L J v c p L \J -O a a e A p'7 p V� -y ° � � 0.05 AC 3 � � ° TWCH BASIN e0 e e e a a a a i 3 3 3 3 3 > > > j a a > > > > > > a j a a a a a Q o b �. = = ITH1LET FIBER _ _ nw OVERLAND RELEASE PATH 114 LF (Y ° > a w c C) ° N [) �I 0 3 GRAPHIC SCALE IN FEET 0 10 20 40 E E 1" = 20 ' o I N WHEN PRINTED AT FULL SIZE N (24" X 36") L F 0 ~ ISSUE DATE DESCRIPTION ENGINEERS SEAL O � � 8/10/2020 1ST SUBMITTAL Kimley* HornCITY OF MANTECA � CITY OF MANTECA GM QROFESS/pAPPROVED BY: DIAL o TWO WORKING DRAWN BY \�`� � PO< y 765 THE CITY DRIVE, SUITE 200 e ORANGE, CA 92868 BEFORE DAYS BEFORE JP YOU DIG X11 YOU DIG CHECKED BY * RCE N0. 86160 * (714)939-1030 CRl<N F�ISSRS CITY ENGINEER DATE DRAINAGE AREA MAP C6 . 3 �' Q PREPARED R THE DIRECT SUPERVISION OF: RCE # EXP civi\- �` 1311 E YOSEMITE AVE., TOLL FREERPUBLIC SERVICE BOO-227-2600 TH rF OF* CAS\�`%� DATE: $lqI2.02.0 UNDERGROUND SERVICE ALERT RECOMMENDED JOHN PO L CK, R.C.E. NO. 86160 EXP. 12/31/20 MANTECA, CA 95336