Loading...
HomeMy WebLinkAbout7301 Old River Road - Drainage StudyB A K E R S F I E L D PUBLIC WORKS DEPARTMENT NICK FIDLER • DIRECTOR • CITY ENGINEER October 25, 2017 Swanson Engineering 5500 Ming Avenue, Suite 250 Bakersfield, CA 93309 RE: Drainage Study for Independence High School CTERTC, 7301 Old River Road Dear Mr. Swanson: We have completed review of the revised drainage study for 7301 Old River Road dated September 2017. As a result of our review, we approve the drainage study with the following comments. 1. The onsite catch basins and storm drain system shall be maintained privately and the City of Bakersfield will not assume responsibility over the maintenance. 2. Flowage and drainage easements will be required prior to approval of the grading plan. 3. Please add a note to the Grading Plan: Overexcavate to a depth of 19 feet below existing grade (Elevation 325.5) and backfill to elevation of 329.5 with clean cohesionless sand classified as SP or SW in the Unified Soils Classification System to ensure adequate permeability for water to drain in seven days or less. A soils engineer is required to be on site during construction of the sump. 4. Upon completion of the construction of the basin, the soils engineer shall provide the City with written verification that the requirements have been met per this letter. 5. Please provide a copy of the calculations on a CD. As a back up to the hard copy submitted, the City is asking all the engineering firms to submit a digital PDF copy. Should you have any questions, please contact Alerik Hoeh at (661) 326-3576. 1600 `T'ruxtun Avenue www.bakersfieldcity.us `iwa AQ Bakersfield • California • 93301 (661)326-3724 Fax (661) 852-2120 uR w .P.W. Very truly yours, NICK EIDLER Public Works Director By: J Sc"oeter Civil Engineer III -Subdivision cc: Project files: 7301 Old River Road Reading Pile \ah S:\LETfER5\DRAINAGE\20t 7\SE D5 7301 Old River Rd appr.doc 2 DRAINAGE ANALYSIS FOR KERN HIGH SCHOOL DISTRICT'S INDEPENDENCE HIGH SCHOOL'S NEW CTERTC BUILDING& LOGISTICS TRAINING CENTER 7301 OLD RIVER ROAD BAKERSFIELD, CA September 2017 ;1 S r �No. 43032 � Exp. 3� {, Project #16-061 3- Crv"- SWANSON ENGINEERING, INC. Swanson Engineering, Inc. 5500 Ming Ave., Suite 250 Bakersfield, CA 93309 Bob Swanson Tel. 661.831.4919 Fax 661..831.4929 DESCRIPTION Kern High School District (KHSD) is planning to construct a new CTERTC building and a logistics training building at 7301 Old River Road adjacent to Independence High School in Bakersfield, California. As part of this construction there will be two new buildings, two parking lots, a bus drop-off, drive -up ATM's, a drainage basin, new street pavement curbs and gutters on Berkshire Road, new street pavement curbs and gutters on Old River Road, and a new traffic signal at the intersection of Old River Road and Berkshire Road. EXISTING CONDITION This property was farm land previously. The only facilities were a water well and irrigation pipes. The project site was determined to have some arsenic contamination in the soil, A Removal Action Work Plan (RAW) was developed by Soils Engineering, Inc. and monitored by the Department of Toxic Substance Control (DTSC). The arsenic contaminated soil has been buried in a deep pit on site and capped with clean soil and pavement for a parking lot. The contaminated soil pit will be under one of the proposed parking lots. The DTSC has been involved in overseeing the RAW project. PROPOSED DESIGN As part of this project, the campus will be adding storm drain lines to help drain the new buildings and parking lots. These storm drain lines will drain to the new drainage basin at the southwest corner of the property. The new drainage basin is an expansion of the existing drainage basin for Independence High School. The expected run-off volume from the new site going to the drainage basin is 2.97 acre-feet. The expansion to the existing drainage basin is expanded to accept 3.23 acre-feet of additional volume. The drainage pipes from the public street inlets for Berkshire Road and Old River Road will be contained within a drainage easement for the City of Bakersfield. EXHIBITS AND CALCULATIONS Attached are brief calculations and exhibits for this project. The exhibits attached are as follows: Calculations 1—Sump Size - Volume Required and Volume Provided Calculations 2 — Drain Inlet Capacities for the two worst case on-site drain inlets Calculations 3 — Drain inlet Capacities for the four off-site street drain inlets Calculations 4 — Hydraulic Grade Eine Calculations Drainage Basin Expansion Exhibit Drainage Area Map CALCULATIONS SUMP SIZE CALCULATION PROJECT: KHSD CTERTC Project JOB #: 16-061 DATE: 6/30/2017 PROPOSED SUMP TOP AREA AT HIGH WATER LEVEL 23,002 SF MIDDLE AREA AT MID -WATER LEVEL 17,627 SF BOTTOM AREA AT BOTTOM OF SUMP 12,101 SF DEPTH 8 FT VOLUME = ((TOP + 4*MIDDLE + BOTTOM)*DEPTH]/6 140,815 5F 3.23 AC -FT TOTAL DRAINAGE AREA 1,079,917 SF V = 0.15 *1 (c*A) (24-hour, 100 -year storm) V = Runoff Volume c : Runoff coefficient A= Area V = 0.15 * 0.8 * 1,079,917 SF V =129,590 CF V = 2.97 ACRE -FT v.,s ul2eh W 2,g%i1cR�'r� 23 VpRav�D�l vp/tat/7Aca VR+7ttuikea of<AY C rt -5R TC}; 16-001 2 D2A1rV IN �' GRP�e,,l'TI �S - ON -S` fTg 9//8/17 AW 0AC- LA'rI PJ& Nk 7N 76VO WO2ST CA90- �SrV�SIT� ��il�rnl lNl�t"5 J 7G - u Z 1 DAAlrJ /r,)LG- i A -r 5,()(47rQ $(k, Loop DnArNA�C- MCA .r gar i(& v- s'/ 5 t7 s F/ ('OPiN ^S/b6b PER1MC;T9 4,)/Z-. Qlp p , . Z-6 Cr s,3 _ �, 09 A SCA >n 0A, cR4,r/N a 2 )cZ, ` � � sm A= i CL"r r Erl F/Z 2 s,-, GZ/A = 9, Z6 cr-s12 yr- = /. 6 3 r- ;,s 6Z/° 49 AANO PUL -FT CAPAW? 0,�r (79.176 llr.S4in CrS'rPR > 1(1943 u" 0,V700, T81 — 6t2-1 D R A r rJ IJV to r /A) P 4,1 k IN q LO— OFF OL 6 21 uE+e. R0,46 Dke4rNlfGs ARR = �S 870 SSP z c, A (o. F30) ` Xvk)( `/�, 670 sr=_ - _ /,SZ c,,.s 3, S 6 0 s,:�li c 6z /I,,- = / , ✓FZ CP r /S ' = G. F( cra�re. DAA //v 11vLer CAloklV(FS —4N ,7/716 /6-�6t2 9181/7 m el"i a/P T �, ss V lq ' w o. R 9 A2EA Fok a -ZI cA7r ,N &ASbv M 2' Z,/" 41a Q/A = /. 95' CPS/Z s,- - 0. 78 FPS Qll ear- 0,37 AfJ6 AiIXT CA,011 crrY o r' � AA7'6 A7" S"4q C4,44 -r-> I GGhb = b R A6 OF 0, 27 - o kAY i gl (CIO,.17'1PJ1466) AA6A il"" CArc U eres�ti 2'k ' w �f s x 9,1A %. F2, ct:rs/ 2, — O.7b, en j%� OF 0.51 4eJA /N�6 7' CA. PA a rY CJS gAA7-G Ar SAC, cN f o --> / FA4 --0,W /-16A6 CF 0, 6c TrVR 6 Cu, µ 7!7 — UZI DAMN 1i Ler /Qr PAve-4�, -muck .AoC« Folz. LvVmvs ;rgj/^oJ r ..ter 7jDAPA 4c E A,? 6A � � �� � 7 p �� i' tx k ' = C,i O.`15��/.$C7 °n � \ 3q� '�79 sr /. SS' cF.S� w� 67 G 0 s r -1A c li oAsrJ Pavrt erep,/Z. f a/P T �, ss V lq ' w o. R 9 A2EA Fok a -ZI cA7r ,N &ASbv M 2' Z,/" 41a Q/A = /. 95' CPS/Z s,- - 0. 78 FPS Qll ear- 0,37 AfJ6 AiIXT CA,011 crrY o r' � AA7'6 A7" S"4q C4,44 -r-> I GGhb = b R A6 OF 0, 27 - o kAY i P - -a (a+ b) A-Gaw ii ,7UPJCr/4,,) 77S oN EeAkSM14e ROAZS —4FAST SID \775 FLVIA) . = 2.92 C,= s 2.92. CPS it W11"N 4�.'6 cr, ' (C.v.g /tJ4.e -t- CA pfiictr,' IN 4 SA; M11 01, -,AY STAN14" CA7CR &Vtj �unfcrj�� J&0 OfQ QLa RIU,2 /RoA4 -- SCA47M CM X60 FLOkI = /. 3 cr.S 1, 33 cr-S /S GEsss 7lv4,) $"6 crs (G, 04 wcer ovAur /N R .S4 C', -ryoe `A �, ok . srAt,(Ika CAMAI A&�'J) ,r"c-riorJ TO on/ Olga Rwz v N/o&rjq cl,6C TS 3 Fc.vW ;. C. 0q- �* S �.OL( CFS /S L64 VAI $r6 Ce--E�U,&, /14LEL7- CAOACrrY SAI A SAq TY)06 'A "' VAAWA� C47CN SArty", cr�rz�� JRA,N In+Lcr OF, -E/' 9�i 8fi 7 /Pt aAl 0ALGuLA'r,4-JS I -OR, 7W6 rOUIL or-p-SirC ZiAol INLZTf ,iu-nf.er 77/ oN 13691s.M&O R-OA6 WjFsr .s/,De J'i/0,740 gips - E. U. 9v9 C -s /s LeSC 774AII) CAIIAC?rl f 5 VY ,7UPJCr/4,,) 77S oN EeAkSM14e ROAZS —4FAST SID \775 FLVIA) . = 2.92 C,= s 2.92. CPS it W11"N 4�.'6 cr, ' (C.v.g /tJ4.e -t- CA pfiictr,' IN 4 SA; M11 01, -,AY STAN14" CA7CR &Vtj �unfcrj�� J&0 OfQ QLa RIU,2 /RoA4 -- SCA47M CM X60 FLOkI = /. 3 cr.S 1, 33 cr-S /S GEsss 7lv4,) $"6 crs (G, 04 wcer ovAur /N R .S4 C', -ryoe `A �, ok . srAt,(Ika CAMAI A&�'J) ,r"c-riorJ TO on/ Olga Rwz v N/o&rjq cl,6C TS 3 Fc.vW ;. C. 0q- �* S �.OL( CFS /S L64 VAI $r6 Ce--E�U,&, /14LEL7- CAOACrrY SAI A SAq TY)06 'A "' VAAWA� C47CN SArty", ."EIGHT �`� 1.4GAL CEPfi 5l4H { L-0- i NOMOGRAPH FOR CAPACITY OF CURB OPENING INLETS. AT LOW POINTS .i l.2 CITY OF BAKERSFIELD INLET CAPACITY IN A SAG TYPE "A" STANDARD CATCH BASIN h = height of opening = 7" H = water depth = 8" Elh = I.I4 11 i 0 4 .9 8 la3 6 .7 o s 1.5 cfs/ft' 1.5x3.5= 5.6cfs ,s a ;-' for 3'- b" wide a . � w i.0 CI.1Ib opening {��atrr ��.O,ya 5.S y~j W m — 4� d , 4 z u 3 arc e� .6 / w o w •5 4 ��t+' .2 c� 7 o aw .3 3.5 w el f� .4 to a 01 .I o p W .OB t-- � 2 a x 2.5x .04 .2b rt .03 0 y- .02 a x U n L h ."EIGHT �`� 1.4GAL CEPfi 5l4H { L-0- i NOMOGRAPH FOR CAPACITY OF CURB OPENING INLETS. AT LOW POINTS .i l.2 HYDRAULIC GRADE LINE Project; CTERTC CAMPUS - 7301 OLD RIVER ROAD Job No: 16.061 By: MCN DATE: 09/12/17 n value 0.011 FOR SDR35 PVC n value 0.013 FOR CONCRETE Pipe Segment From To Upstream In -Flow to Junction Area (acres) Cvalue Assumed Intensity in Pipe Section Upstream Section Flow (cfs) Pipe Flow (cfs) Diameter Slope (Inches) {%n) Vpipe (fps) Length of Pipe (feet) Initial Time of Concentration to Drain Inlet (minutes) Time of Concentration in Pipe (Lp1Pc/VP Pe) (minutes) Accumulated Time of Concentration (minutes) Adjusted Intensity for Tc Based on Largest In -Flow (from IDF Chart) Adjusted Flow for Tc of Major In -Flow (cfs) Velocity (cfs) Hv Velocity Head (feet) n Manning's Coefficient S Friction Loss Slope Hf (feet) Km Hm (feet) HGLl Begin Hyd. Grd. Line HGL2 End Hyd. Grd. Line Elevation Flowline/ Manhole @ HGL1 Invert @ HGL1 Invert @ HGL2 Liquid Depth to Diameter Ratio (d/D) J109 J107 J109 J107 J109 0.237 0.95 1.80 0.41 6 1.00 2.06 42 10 0.34 70.34 1.8 0.405 2.06 0.066197 0.011 0.0037 0.15698 0.5 0.03310 343.28 342.86 347.20 342.77 342.33 0.57 DK J108 1107 J108 1107 J108 0.052 0.95 1.80 0.09 8 1.00 0.26 12 10 0.78 10.78 1.76 0.087 0.25 0.000976 0.011 0.0000 0.00045 0.5 0.00049 342.86 342.86 346.80 342.45 342.33 0.17 OK J107 J105 J109 0.237 0.95 1.80 0.41 6 1.00 2.06 42 10.34 J108 Q.Q52 0.95 1.80 0.09 8 1.00 0.25 12 10.78 J107 0.000 0100 1.80 0.00 1 1 1 1107 1105 J107 0.49 8 1.00 1.42 26 0.31 10.64 1.78 0.489 1.40 0.030525 0.011 0.0012 0.03054 0.75 0.02289 342.86 342.60 347.00 342.33 342,07 0.42 OK J106 1105 J106 J105 J106 0.079 0.95 1.80 0.13 8 2.00 0.39 19 10 0.82 10.82 1.75 0.131 0.38 0.002191 0.011 0.0001 0.00160 0.5 0.00110 342.98 342.60 346.58 342,45 342.07 0.17 OK J105 J103 J107 0.000 0.00 1.80 0.49 8 1.00 1.42 26 10.64 1106 0.079 0.95 1.80 0.13 8 2.00 0.39 19 10.82 J105 0.000 0.00 1.80 0.00 .1105 1103 J105 0.63 12 0.50 0.80 37 0.77 11.41 1,7 0.595 0.76 0.008906 0.011 0.0002 0.00738 0.75 D.00668 342.60 342.58 346.58 342.07 341.89 0.31 OK J104 J103 3104 J103 J104 0.030 0.95 1.80 0.05 4 2.00 0.59 12 10 0.34 10.34 1.8 0.051 0.59 0.005373 0.011 0.0005 0.00625 0.5 0.00269 342.59 342.58 347.00 342.13 341.89 0.27 OK J103 J101 J105 0.000 0.00 1.80 0.63 12 0.50 0.80 37 11.41 J104 0.030 0.95 1.80 0.05 4 2.00 0.59 12 10.34 J103 0.000 0.00 1.80 0.00 J103 J101 J103 0.68 12 0.50 0.87 105 2.02 13.43 1.53 0.579 0.74 0.008438 0.011 0.0002 0.01985 0.75 1 0.00633 342.58 342.06 346.851 341.89 341.36 0.31 OK J102 J101 .1102 J101 J102 0.027 0.95 1.80 0.05 4 2.00 0.52 20 10 0.64 10.64 1.78 0.045 0.52 0.004175 0.011 0.0004 0.00809 0.5 0.00209 342.07 342.06 347.10 341.76 341.36 0.26 DK J101 J99 J103' 0.000 j 0.00 1.80 0.68 12 0.50 0.87 105 13.43 1102 0.027 0.95 1.80 0.05 4 2.00 0.52 20 10.64 J101 0.000 0.00 1.80 0.00 J101 J99 J101 0.73 12 0.50 0.93 61 1.10 14.53 1.45 0.585 0.75 0.008631 0.011 V0.00020.01180 0.75 0.00647 342.06 342.04 346.90 341.36 341.06 0.32 OK 1100 J99 J100 J99 1100 0.055 0.95 1.80 0.09 4 3.00 1.08 10 10 0.15 10.15 1.84 0.096 1.11 0.018963 0.011 0.01838 0.5 0.00948 342.07 342.04 347.00 341.36 341.06 0.34 OK J99 J97 J101 0.000 0.00 1.80 0.73 12 0.50 0.93 61 14.53 1100 0.055 0.95 1.80 0.09 4 3.00 1.08 10 10.15 J99 0.000 0.00 1.80 0.00 J99 J97 199 0.82 12 0.50 1.05 23 0.37 14.90 1.43 0.652 0.83 0.010715 0.011 0.0002 0.00552 03 0.00321 342.04 342.03 346.80 341.06 340.94 0.33 OK 198 J97 J98 J97 J98 0.071 0.95 1.80 0.12 4 2.00 1.40 67 10 0.80 10.80 1.8 0.122 1.40 0.030247 0.011 0.0029 0.19647 0.5 0.01512 343.37 342.03 346.78 342.28 340.94 0,44 OK J97 J81 J100 0.055 0.95 1.80 0.09 4 3.00 1.08 10 10.15 J98 0.071 0.95 1.80 0.12 4 2.00 1.40 67 10.80 J97 0.000 0.00 1.80 0.00 J97 J81 J97 0.22 12 1.00 0.28 120 7.27 18.07 1 1.27 0.152 0.19 0.000585 0.011 0.0000 0.00157 1.5 0.00088 342.03 340.83 346.80 340.94 339.74 0.14 OK 196 J94 196 194 196 0.022 0.95 1.80 0.04 4 1.00 0.43 91 10 3.49 13.49 1.53 0.032 0.37 0.002116 0.011 0.0002 0.01867 0.5 0.00106 344.87 343.96 347.10 344.22 343.31 0.25 OK J95 J94 J95 0.036 0.95 1.80 0.05 4 2.00 0.70 30 10 0.71 10.71 1.78 0.061 0.69 0.007495 0.011 0.0007 0.02180 0.5 0.00375 J95 344.56 J94 343.96 347.10 343.91 343.31 0.29 OK J94 J92 J96 0.022 0.95 1.80 0.04 4 1.00 0.43 91 13.49 J95 0.036 0.95 1.80 0.06 4 2.00 0.70 30 10.71 J94 0.000 0.00 1.80 0.00 J94 J92 J94 0.10 12 1.00 0.13 89 11.74 22.45 1.1 0.061 0.08 9.25E-05 0.011 0.0000 0.00018 0.75 0.00007 343.96 343.07 346.60 343.31 342.42 0.07 OK J93 J92 193 192 J93 0.084 0.95 1.80 0.14 4 2.00 1.65 42 10 0.42 10.42 1.8 0.144 1.65 0.042158 0.011 0.0041 0.17166 0.5 0.02108 343.91 343.07 347.10 343.26 3,02.42 0.47 DK Page 1 Pipe Segment From To Upstream In -Flow to Junction Area (acres) C value Assumed Intensity in Pipe Section Upstream Section Flow (tfs) Pipe Flow (cfs) Diameter (inches) Slope (%) Vpipe (fps) Length of Pipe (feet) Initial Time of Concentration to Drain Inlet (minutes) Time of Concentration in Pipe (LpjPJV;,AJ (minutes) Accumulated Time of Concentration (minutes) Adjusted Intensity for Tc Based on Largest In -Flow (from IDF Chart) Adjusted Flow for Tc of Major In -Flow (cfs) Velocity (cfs) Hv Velocity Head (feet) n Manning's Coefficient S Friction Loss slope Hf (feet) Km Hm (feet) HGLI HGL2 Begin End Hyd. Grd. Hyd. Grd. Line Line Elevation Flowline/ Manhole @ HGLI Invert @ HGLI invert @ HGL2 Liquid Depth to Diameter Ratio (d/D) J92 J90 J94 0.000 0.00 1.80 0.10 12 1.00 0.13 89 22.45 J93 0.084 0.95 1.80 0.14 4 2.00 1.65 42 10.42 J92 0,000 0.00 1.80 0.00 J92 J90 J92 0.24 12 1..00 0.31 74 3.99 14.41 1.45 0.196 0.25 0.000965 0,011 0.0000 0.00160 0.75 0.00072 343.07 342.33 346.70 342.42 341.68 0.15 OK J91 190 J91 J90 J91 0.021 0.95 1.80 0.04 4 2.00 0.42 42 10 1.69 11.69 1.69 6.034 0.39 0.002362 0.011 0.0002 0.00962 0.5 0.00118 343,17 342.33 347.10 342.52 341.68 0.22 OK J90 J88 J92 0.000 0.00 1.80 0.24 12 1.00 0.31 74 14.41 J91 0.021 0.95 1.80 0.04 4 2.00 0.42 42 11.69 J90 0.000 0.00 1.80 0.00 J90 J88 J90 0.28 12 1.00 0,36 26 1.22 15.63 1.38 0.214 0.27 0.001154 0.011 0.0000 0.00067 0.75 0.00087 342.33 342.07 345.80 341.68 341.42 0.15 OK 189 188 J89 J88 J89 0.025 0.95 1.80 0.04 4 2.00 0.48 31 10 1.07 11.07 1.74 0.041 0.47 0.003403 0.011 0.0003 0.01023 0.5 1 0.00170 342.69 342,07 347.10 342.04 341.42 0.05 OK J88 JBG J90 0.000 0,00 1.80 0.28 12 1.00 0.36 26 15.63 J89 0.025 0.95 1.80 0.04 4 2.00 0,48 31 11.07 J88 0.000 0.00 1.80 0.00 188 J86 J88 0.32 12 1.00 0.41 24 0.98 16.61 1.33 0.237 0.30 0.001421 0.011 0.0000 0.00076 0.75 0.00107 342.07 341.83 346.80 341.42 341.18 0.17 OK J87A J87B J87A J878 J87A 0.499 0.25 1.80 0.22 8 0.50 0.64 108 10 2.80 12.80 1.6 0.20G 0.57 0,005078 0.011 0.0002 0.02110 0.5 0.00254 342.72 342.18 344.80 342.07 341.53 0.30 OK J87B J86 J87A 0.499 0.25 1.80 0.22 8 0.50 0.64 108 12.80 J87B 0.425 0.25 1.80 0.19 J87B 186 J87B 0.42 8 0.50 1.19 69 0.97 13.76 1.51 0.349 1.00 0.015514 0.011 0.0006 0.04119 0.3 0.00465 342.18 341.83 345.20 341.53 341.18 0.42 OK J86 J84 J88 0.000 0.00 1.80 0.32 12 1.00 0.41 24 16.61 J87B 0.425 0.25 1.80 0.42 8 0.50 1.19 69 13.76 186 0.000 0.00 1.80 0.00 J86 J84 386 0.74 12 1.00 0.94 48 0.85 14.61 1.45 0.594 0.76 0.008883 0.011 0.0002 0.00955 0.75 0.00666 341.83 341.82 346.75 341.18 340.70 0.26 OK 185 J84 185 J84 J85 0.027 0.95 1.80 0.05 4 2.00 0.53 14 10 0.43 10.43 1.8 0.046 0.53 0.0043SI 0.011 0.0004 0.00569 0.5 O.00Z18 341.82 .341.82 347.10 340.70 340.70 0.25 OK J84 J82 J86 0.000 0.00 1.80 0.7412 1.00 0.94 48 14.61 J85 0.027 0.95 1.80 0.05 4 2.60 0.53 14 10.43 J84 0,000 0.00 1.80 0.00 J84 J82 _ J84 0.78 12 1.00 1.00 95 1.59 16.20 1.37 0.596 0.76 0.008955 0.011 0.0002 0.01906 0.75 0.00672 341.82 340.87 347.00 340.70 339.75 0.26 OK J83 J82 J83 J82 J83 0.678 0.85 1.80 1.04 18 0.25 0.59 11 10 0,31 10.31 1.8 1.037 0.59 0.0053S31 0.013 0.0001 0.00107 0.5 0.00268 1 340.89 340.87 345.14 340.50 339.75 0.28 OK J82 J81 J84 0.000 0.00 1.80 0.78 12 j 1.00 1.O0 j 95 16.20 J83 0.678 0.85 1.80 1.04 18 0,25 0.59 11 10.31 J82 0.000 0.00 1.80 0.00 J82 J81 J82 1.82 18 0.25 1.03 97 1.57 11.88 1.68 1.699 0.96 0.014367 0.013 0.0003 0.02540 0.75 0.01077 340.87 340.83 345.90 339.75 339.74 0.37 OK J81 J79 J97 0.000 0.00 1.80 0.22 12 1.00 0.28 120 18.07 J82 0.000 0.00 1.80 1.82 18 0.25 1.03 97 11.88 J81 1.053 0.80 1.80 182 18 0.25 0.86 103 10 2.00 12.00 J81 J79 J81 3.55 18 0,25 2.01 245 2.03 13.91 1.5 2.961 1.68 0.043627 0.013 0.0008 0.19481 0.75 0.032,72 340.83 340.22 343.38 339.74 338.90 0.511 OK J80 379 J80 J79 J80 0.910 0.80 1.80 1.31 18 0.25 0.74 15 10 0.34 10.34 1.82 1.325 0.75 0.008732 0.013 0.0002 0.00239 0.5 0.00437 340.40 340.36 343.95 339.64 339.60 0.51 OK J79 J78 J81 1.053 0.80 1.80 1.52 18 0.25 0.86 245 13.91 180 0.910 0.80 1.80 1.31 18 0.25 0.74 245 10.34 J79 0.893 0.90 1.80 1.45 18 0.25 0.82 103 10 2.10 12.10 J79 J78 J79 4.27 18 0.25 2.4Z 103 0.71 14.62 1.68 3.988 2.26 0.079167 0.013 0.0014 0.14862 0.75 0.05938 340.22 339.96 344.65 346.51 338.83 0.29 OK 178 J77 179 0.893 0.90 1.80 4.27 18 0.25 2.42 245 14.62 J78 0.261 0.90 1.80 0.42 18 0.25 0.24 205 14.28 14.28 J78 177 J78 4.70 18 0.25 2.66 205 1.29 1.29 1,4 3,652 2.07 1 0.0663861 0.013 0.0012 0.24804 0.3 0.01992 339.961 339.451 344.831 338.831 338.10 0.75 OK J77 176 J78 0.261 0.90 1.80 4.70 18 0.25 2.66 205 1 1.29 J77 0.000 0.00 1.80 0.00 177 J76 J77 4.70 18 0.25 2.66 317 1.99 3.27 1.33 3.469 1.96 0.059913 0.013 0.0011 0.34616 0.25 0.01498 339.45 338.66 345-271 338.10 337-311 0.7 4#0 K Page 2 Pipe Segment From To Upstream In-Flow to Junction Area (acres) C value Assumed Intensity in Pipe Section Upstream Section Flow (cfs) Pipe Flow (cis) Diameter (Inches) Slope (%] Vpipe (fps) Length of Pipe (feet) Initial Time of Concentration to Drain Inlet (minutes) Time of Concentration in Pipe (LP P./VP P�) (minutes) Accumulated Time of Concentration (minutes) Adjusted Intensity for Tc Based on Largest In-Flow (from IDF Chart) Adjusted Flow for Tc of Major In-Flow (cfs) Velocity (cfs) Hv, Velocity Head (feet) n Mann€ng's Coefficient S Friction Loss Slope Hf (feet) Km Hm (feet) HGLI Begin Hyd. Grd. Line HGL2 End Hyd. Grd. Line Elevation Flowl€ne/ Manhole @ HGLI Invert @ HGLI Invert @ HGL2 Liquid Depth to Diameter Ratio (d/D) J76 J13 J77 0.000 0.00 1.80 4.70 18 0.25 2.66 317 3.27 J76 1.909 0.85 1.80 2.92 18 0.25 1.65 40 10 0.40 10.40 J76 J13 J76 7.62 18 0.25 4.31 40 0.15 3.43 1.33 5.628 3.19 0.157647 0.01.3 0.0029 0.11493 0.25 0.03941 338.66 338.56 342.84 337.31 337.21 0,90 OK J75 J74 J75 J74 J75 1.691 0.95 1.80 2.89 18 0,25 1,64 15 10 0.15 10.15 1.82 2.924 1,66 0.042549 0.013 0.0008 0.01163 0.5 0.02127 340.52 340.49 343.95 339.64 339.60 0.51 OK J74 J72 J75 1.691 0.95 1.80 2.89 18 0.25 1.64 15 10.15 J74 0.000 0.00 1.80 0.00 J74 J72 J74 2.89 18 0.25 1.64 173 1.76 11.91 1.66 2.667 1.51 0.035397 0,013 0.0006 0.11161 0.5 0.01770 340.49 340.36 344.70 339.60 339.17 0.47 OK J73 J72 J73 J72 J73 0.372 0.95 1.80 0.64 12 2.00 0.81 6 10 0.12 10.12 1.82 0.644 0.82 0.010442 0.011 0.0002 0.00140 0.5 0.00522 340.37 340.36 343.20 339.29 339.17 0.22 OK J72 169 J74 0.000 0.00 1.80 2.89 18 0.25 1.64 173 11.91 J73 0.372 0.95 1.80 0.64 12 2.00 0.81 6 10.12 J72 0.000 0.00 1.80 0.00 J72 J69 J72 3.53 18 0.25 2.00 12 0.10 12.01 1.65 3.234 1,83 0,052066 0.013 0.0009 0.01139 0.75 0.03905 340.36 340.31 345.25 339.17 339.14 0.52 OK J71 170 J71 J70 171 0.561 0,95 1.80 0.96 18 0.25 0.54 24 10 0.74 10.74 1.78 0.949 0.54 0.004485 0.013 0.0001 0.00196 0.5 0.00224 340.76 340.76 345.25 339.65 339.59 0.28 OK J70 J69 J71 0.561 0.95 1.80 0.96 1S 0.25 0.54 24 10.74 J70 0.000 0.00 1.80 0.00 J70 J69 J70 0.96 18 0.25 0.54 181 5.55 15.29 1,35 0.720 0.41 0.00258 0.013 0.0000 0.00851 0.5 0.00129 340.76 340.31 343.80 339.59 339.14 0.24 OK J69 J41 J72 0.000 0.00 1.80 3.53 18 0.25 2.00 12 12.01 J70 0.000 0.00 1.80 0.96 18 0.25 0.54 181 10.74 J69 0.000 0.00 1.80 0.00 1 J69 J41 J69 4.49 18 0,25 2.54 179 1.17 13.19 1,53 3.815 2.16 0.072442 0.013 0.0013 0.23634 1.5 0.10866 340.31 339.96 345.25 339.14 338.69 0.59 OK J68 J67 J68 J67 J68 0.893 0.80 1.80 1.29 8 0.50 3.69 132 10 0.60 10.60 1.79 1.279 3.67 0.208606 0.011 0.0080 1.05942 0.5 0.10430 343.10 342.44 345.50 342.59 341.93 0.90 OK J67 J66 J68 0.893 0.80 1.80 1.29 8 0.50 3.69 132 10.60 J67 0.236 0.25 1,80 0.11 12 0.50 0.14 80 10 9.86 19.86 1 J67 J66 J67 1.39 12 0.50 1.77 80 0.75 11.35 1.7 1.315 1.67 0.043555 0.011 0.0010 0.07807 0.6 0.02613 342.44 342.04 346.601 341.93 341.531 0.47 OK J66 1 165 J67 0.236 0.25 1.80 1.39 12 0.50 1.77 80 11.35 J66 0.071 0.45 1.80 0.06 12 0.50 0.07 56 10 12.76 22.76 J66 J65 J66 1,45 12 0,50 1,85 56 0.51 11.85 1.68 1.353 1.72 0.046117 0.011 0.0010 0.05787 0.6 0.02767 342.04 341.76 346.55 341.53 341.25 0.47 OK J65 J59 J66 0.071 0.45 1.80 1.45 12 0.50 1.85 56 11.85 J65 0.148 0.35 1.80 0.09 12 0.50 0.12 70 10 9.79 19.79 J65 J59 165 1.54 12 0.50 1.97 70 0.59 12.45 1.6 1.372 1.75 0.047401 0.011 0.0011 0,07435 1 0.6 0.02844 341.76 341.41 346.20 341.25 340.90 0.49 OK J64 162 164 J62 J64 0.455 0.95 1.80 0.78 6 2.00 3.96 25 10 0.11 10.11 1.82 0.787 4.01 0.249476 0.011 0.0141 0.35215 0.5 0.12474 342.64 342.14 347.20 342.03 341.53 0.68 OK J63 J62 163 J62 J63 0.039 0.95 1.80 0.07 6 2.00 0.34 4 10 0.17 10.17 1.820.067 0.34 0.0017991 0.011 0.0001 0.00036 0.5 0.00090 342.14 342.14 346.80 341.60 341.53 0,18 OK 162 J60 J64 0.455 0.95 1.80 0.78 6 2.00 3.96 25 10.11 J63 0.039 0.95 1.80 0.07 6 2.00 0.34 4 10.17 J62 0,000 00.0 1.80 0.00 162 J60 J62 0.84 6 2.00 4.30 27 0.10 10.21 1.82 0.853 4.35 0.293648 0.011 0.0166 0.44766 0.75 0.22024 342.14 341.60 346.90 341.53 341.09 0.78 OK 161 J60 J61 J60 J61 0.080 1 0.95 1.80 0.14 8 3.00 0.39 12 10 0.51 10.51 1.8 0.137 0.39 0.002393 0.011 0.0001 0.00110 0.5 0.00120 341.961 341.60 346.581 341.45 341.09 0.17 OK J60 J59 162 0.000 0.00 1.80 0.84 6 2.00 4.30 27 10.21 J61 0.080 0.95 1.80 0.14 8 3.00 0.39 12 10.51 J60 0,000 0.00 1.80 0.00 J60 159 J60 0.98 12 1.00 1.25 19 0.25 10.46 1.8 0.981 1.25 0.024251 0.011 0.0005 0.01032 0.75 0.01819 341.60 341.41 346.70 341.09 340.90 0.34 OK J59 J57 J65 0.148 1 0.35 1.80 1.54 12 1 0.50 1.97 70 12.45 J60 0.000 0.00 1.80 0.98 12 1.00 1.25 19 10.46 J59 0.000 0,00 1.80 0.00 J59 J57 J59 2.52 12 1.00 3,22 80 0.42 12.86 1.6 2,244 2.86 0.126836 0.011 0.0028 0.22850 0.75 0.09513 341.41 340.61 346.95 340.90 340.09 0.52 OK J58 J57 J58 J57 J58 0.317 0.25 1.800.14 8 3.00 0.41 51 10 2.08 12.08 1.65 0.131 0.37 0.002174 0.011 0.0001 0.00427 0.5 0.00169 347.57 341.041 346.00 341.62 340.091 0.16 OK Page 3 Pipe Segment From To Upstream In -Flow to Junction Area (acres) Cvalue Assumed intensity In Pipe Section Upstream Section Flow (cfs) Pipe Flow (cfs) Diameter Slope (Inches) (%) Vpipe (fps) Length of Pipe (feet) Initial Time of Concentration to Drain Inlet {minutes) Time of Concentration in Pipe (L,ipe/VPipe) (minutes) Accumulated Time of Concentration {minutes) Adjusted Intensity for Tc Based on Largest In -Flow (from IDF Chart) Adjusted Flow for Tc of Major In -Flow (cfs) Velocity (cfs) Hv Velocity Head (feet) n Manning's Coefficient S Friction Loss Slope Hf (feet) Km Hm (feet) HGLI HOLZ Begin End Hyd. Grd. Hyd. Grd. Line Line Elevation Flowline/ Manhole @ HGLI Invert @ HGLI Invert @ HGL2 Liquid Depth to Diameter Ratio (d/D) J57 J55 J59 0.000 0.00 1.80 2.52 12 1,00 3.22 81 12.86 J58 0.317 0.25 1.80 0.14 8 3.00 0.41 51 12.08 J57 0.000 0.00 1.80 0.00 J57 J55 J57 2.67 12 1.00 3.40 27 0.13 13.00 1.57 2.326 2.96 0.136296 0.011 0.0031 0.08246 0.75 0.10222. 341.04 340.85 346.75 340.09 339.82 0.52 OK J56 J55 J56 J55 J56 0.016 0.95 1.80 0.03 4 3.00 0.32 56 10 2.95 12.95 1.57 0.024 0.28 0.001179 0.011 0.0001 0.00640 0.5 0.00059 342.53 340.85 346.90 341.50 _ 339.82 0.16 OK J55 J45 J57 0.000 0.00 1.80 2.67 12 1.00 3.40 27 13.00 J56 0.016 0.95 1.80 0.03 4 3.00 0.32 56 12.95 J55 0.000 0.00 1.80 0.00 155 J45 J55 2.69 12 1.00 3.43 49 0.24 13.24 1.54 2.305 2.94 0.133862 0.011 0.0030 0.14697 0.75 0.10040 340.85 340.61 347.00 339.82 339.67 0.53 OK J54 J52 J54 J52 J54 0.037 0.95 1.80 0.05 4 2.00 0.73 61 10 1.39 11.39 1.7 0.060 0.69 0.007409 0.011 0.0007 0.04381 0.5 0.00370 342.97 ;41.75 347.00 342.09 340.87 0.29 OK J53 J52 J53 J52 J53 0.27.5 0.30 1.80 0.12 8 1.00 035 60 10 2.87 12.87 1.59 0.107 0,31 0.001472 0.011 0.0001 0.00340 0.5 0.00074 342,35 341.75 34G.00 341.47 340.87 0.19 OK J52 J50 154 0.037 0.95 1.80 0.06 4 2.00 0.73 61 11.39 J53 0.225 0.30 1.80 0.12 8 1.00 0.35 60 12.87 352 0.000 0.00 1.80 0.00 J52 J50 152 0.19 12 2.00 0.24 18 1.27 14.14 1.48 0.152 0.19 0.000586 0.011 0.0000 0.00024 0.75 0.00044 341.75 341.75 346.80 340.87 340.51 0.12 OK J51 J50 J51 J50 151 0.003 0.95 1.80 0.01 4 2.00 0.06 20 10 5.49 15.49 1.4 0,004 0.05 3.47E-05 0.011 0.0000 0.00007 0,5 0.00002 341.75 341.75 347.20 340.91 340.51 0.05 J50 148 J52 0.000 0.00 1.89 0.19 12 2.00 0.24 18 14.14 J51 0.003 0.95 1.80 0.01 4 2.00 0.06 20 15,49 J50 0.000 0.00 1.80 0.00 J50 J48 J50 0.19 12 2.00 1 0.24 57 3.91 18.05 1.27 0.135 0.17 0.000456 0.011 0.0000 0.00058 0.75 0.00034 341.75 340.61 346.90 340.51 339.41 0.11 OK J49 J48 J49 148 J49 0.085 1 0.95 1.80 0.15 4 2.00 1.67 23 10 0.23 10.23 1.81 0.147 1.68 0.043894 0.011 0.0043 0.09788 05 0.02195 340.73 340.61 347.20 339.87 339.41 0.47 OK 148 J46 J50 0.000 0.00 1.80 0.19 12 2.00 0.24 57 18.05 J49 0.085 0.95 1.80 0.15 4 2.00 1.67 23 10.23 J48 0.000 0.00 1.80 0.00 J48 J46 J48 0.34 12 1.00 0.43 3 0.12 18.17 1.27 0.237 0.30 0.001421 0.011 0.0000 0.00010 0.75 0.00107 340.61 340.61 346.75 339-411 339.38 0.16 OK J47 J46 147 J46 J47 0.126 0.60 1.80 0.14 8 1.00 0.39 29 10 1.24 11.24 1.72 0.130 0.37 0.002169 0.011 0.0001 0.00242 0.5 0.00108 340.61 340.61 346.58 339.67 339.38 0.20 OK 146 J45 J48 0.000 0.00 1.80 0.34 12 1.00 0.43 3 18.17 J47 0.126 0.60 1.80 0.14 8 1.00 0.39 29 11.24 J46 0.000 0.00 1.80 0.00 I IJ46 145 J46 0.47 12 1.00 0.60 5 0.14 18.30 1.26 0.331 0.42 0.002762 0.011 0.0001 0.00031 0.75 0.00207 340.61 340.61 346.20 339.38 339.67 0.19 OK J45 J42 J55 0.000 0.00 1.80 2.69 12 1.00 3.43 49 13.24 J46 0.000 0.00 1.80 0.47 12 1.00 0.60 5 18.30 J45 0.000 0.00 1.80 0.00 145 142 J45 3.17 18 0.25 1.79 232 2.16 15.39 1.4 2.463 1.39 0.0302 0.011 0.0004 0.09143 0.6 0.01812 340.61 340.03 346.30 339.67 338.92 0.42 OK J44 J43 144 J43 J44 0.424 0.90 1.80 0.69 12 0.50 0.87 11 10 0.21 10.21 1.82 0.694 0.88 0.012133 0.011 0.0003 0.00299 0.5 0.00607 340.08 340.07 342.84 338-97 338.92 0.45 OK J43 142 J44 0.424 0.90 1.80 0.69 12 0.50 0.87 11 10.21 J43 0368 0.90 1.80 0.60 12 0.50 0.76 34 10 0.75 10.75 J43 142 J43 1.28 12 0.50 1.63 34 0.35 10.56 1.79 1.275 1.62 0.040968 0.011 0.0009 0.03121 0.3 0.01229 340.07 340.03 343.02 338.92 338.92 0.47 OK 142 141 J45 0.000 1 0.00 1.80 3.17 18 0.25 1.79 232 15.39 J43 0.368 0.90 1.80 1.28 12 0.50 1.63 34 10.56 J42 0.000 0.00 1.80 0.00 J42 141 J42 4.45 18 0.25 2.52 24 0.16 15.55 1.4 3.460 1.96 0.059605 0.011 0.0008 0.01867 0.75 0.04470 340.03 339-96 344.10 338.92 338.69 0.51 OK J41 138 J73 0.372 0.95 1.80 0.64 12 2.00 0.81 6 10.12 J42 0.000 0.00 1.80 4.45 18 0.25 2.52 24 15.55 J41 0.000 0.00 1.80 0.00 J41 338 J41 5.09 30 0.25 1.04 108 1.74 17.29 1.3 3.673 0.75 0.008703 0.013 0.0001 0.00867 0.6 0.00522 339.96 339.69 344.10 338.691 338.42 0.51 OK 140 J39 J40 139 J40 0.450 0.90 1.80 0.73 12 1.00 0.93 14 10 0.25 10.25 1.82 0.737 0.94 0.013675 O.D11 0.0003 0.00429 0.5 0.00684 339.31 339.17 342.70 338.731 338.59 0.28 OK Page 4 Pipe Segment From To Upstream In -Flow to Junction Area (acres) Cvalue Assumed intensity in Pipe Section Upstream Section flow (cfs) Pipe Flow (cfs) Diameter (Inches) Slope {%) Vplpe (fps) Length of Pipe (feet) Initial Time of Concentration to Drain Inlet (minutes Time of Concentration in Pipe (LP,,./VP1,J (minutes) Accumulated Time of Concentration {minutes) Adjusted Intensity for Tc Based on Largest In -Flow (from IDF Chart). Adjusted Flow for Tc of Major In -Flow (cfs) Velocity (cfs} HV Velocity Head (feet) n Manning's Coefficient 5 Friction Loss Slope Hf (feet} Km Hm (feet) HGLi HGL2 Begin End Hyd. Grd. Hyd. Grd. Line Line Elevation Flowline/ Manhole @ HGL1 Invert @ HGL3 Invert @ HGi2 Liquid Depth to Diameter Ratio (d/D ) J39 J38 J40 0.450 0.90 1.80 0.73 12 1.00 0.93 14 10.15 139 0.303 0.90 1.80 0.49 12 1.00 0.63 17 10 0.45 10,45 339 J38 139 1.22 12 1.00 1.55 17 0118 10.43 1.8 1.220 1.55 0.037514 0.011 0.0008 0.01429 0.3 0,01125 339.17 339.14 342.77 338.59 338.42 0.37 OK J38 118 J41 0.000 0.00 1.80 5.09 30 0.25 1.04 108 17.29 J39 0.303 0.90 1.80 1.22 12 1.00 1.55 17 10.43 138 0.000 0.00 1.80 0.00 J38 318 J38 6.31 30 0.25 1.29 169 2.19 19.48 1.2 4.204 0.86 0.011401 0.013 010001 0.01777 0.75 0.00855 339.14 137 338.72 J36 343.96 338.42 338.001 0.29 OK 137 J36 J37 0.089 0.95 1.80 0.15 4 2.00 1.75 22 10 0.21 10.21 1.82 0.155 1.77 0.04886 0.011 0.0047 0.10421 0.5 4.02443 342.48 342.04 347,20 342.22 341.78 0.49 0K J36 J34 J37 0.089 0.95 1.80 0.15 4 2.00 1.75 22 10.21 J36 0.000 0.001.80 0.00 J36 J34 J36 0.15 8 1.00 0.44 55 2.09 12.30 1.6 0.136 0.39 0.00236 0.011 0.0001 0.00499 0.5 0,00118 342.04 341.49 346.80 341.78 340.79 0.22 OK J35 J34 J35 J34 J35 0.089 0.95 1.80 0.15 4 2,00 1.75 22 10 0.21 10.21 1.82 0.155 1.77 0.04886 0.011 0.0047 0.10421 0.5 0.02449 341.62 341.49 347.20 341.23 340.79 0.49 OK J34 J33 J36 0.000 0.00 1.80 0.15 8 1.00 0.44 55 1 12.30 J35 0.089 0.95 1.80 0.15 4 2.00 1.75 22 10,21 334 0,000 1 0.00 1.80 0.00 134 J33 134 0.31 8 1.00 0.88 109 2.07 14.37 1,47 0.250 0.72 0.007969 0.011 0.0003 1 0.03342 0.75 0.00598 341.49 340.40 346.70 340.79 339.70 0.28 OK J33 J32 J34 0.000 0.00 1.80 0.31 8 1.00 0.88 109 14.37 J33 0.089 0.95 1.80 0.15 12 0.50 0.19 65 10 5.59 15.59 J33 J32 J33 0.46 12 0.50 0.58 65 1.85 16.23 1.36 0.346 0.44 0.003019 0.011 0.0001 0.00440 0.3 0.00091 340.40 340.07 346.40 339.70 339.38 0.23 OK J32 J22 J33 0.089 0.95 1.80 0.46 12 0.50 0.58 6516.23 J32 0.114 0.95 1.80 0.19 12 050 0.25 57 1D 3.80. 13.84 132 122 J32 0.65 12 0.50 0.83 57 1.14 17.37 1.3 0.471 0.60 0.005591 0.011 0.0001 0.00714 0.3 0.00168 340.07 339.79 346.32 339.38 339.09 0.27 OK J31 J29 131 J29 J31 0.057 0.95 1.80 0.10 8 1.00 0.28 62 10 3.69 13.69 1.51 0.082 0.23 0.000855 0.011 0.0000 0.00204 0.5 0.00043 34234 341,72 347.20 341.89 341.Z71 0.16 OK 330 J24 J30 J29 J30 0.036 0.95 1.80 0.06 4 2.00 0.71 11 10 0.26 10.26 1.82 0.063 0.72 0.008048 0.011 0.0008 0.00858 0.5 0.00402 341.73 341.72 347.20 341.49 341.27 0.30 OK J29 J28 J31 0.057 0.95 1.80 0.10 8 1.00 0.28 62 13.69 J30 0.036 0.95 1.80 0.06 4 2.00 0.71 11 10.26 J29 _ 0.000 0.00 1.80 0.00 J29 J28 J29 0.16 8 1.00 0.46 108 3.93 17.63 1.29 0.114 0.33 0.0016711 0.011. 0.0001 0.00594 0.75 0.00125 341.72 340.64 346.60 341,271 340.20 0.19 OK J28 J26 129 0.000 0.00 1.80 0.16 $ 1.00 0.46 108 17.63 J28 0.032 0.95 1.80 0.05 8 1,00 0.16 11 10 1.17 11.17 J28 J26 128 0.21 8 1,00 0.61 11 0.30 17.93 1.27 0.151 0.43 0.002912 0.011 0.0001 0.00123 0.6 0.00175 340.64 340.64 343.20 340.20 340.09 0.22 OK 327 J26 J27 J26 J27 0.055 0.95 1.80 0.09 4 5.00 1.08 2 10 0.03 10.03 1.83 0.096 1.10 0.018649 0.011 0.0018 0.00362 0.5 0.00932 340.65 340.64 347.20 340.09 340.09 0.30 OK J 2 6 124 J28 0.032 0.95 1.80 0.21 8 1.00 0.61 11 17.93 127 0.055 0.95 1.80 0.09 4 5.00 1.08 2 10.03 126 0.000 0.00 1.80 0.00 J26 J24 J26 0.31 8 1.00 0.88 59 1.11 19.04 1.23 0.211 0.60 0.005657 0.011 0.0002 0.01284 0.75 0.00424 340.64 340.05 347.10 340.09 339.50 0.26 OK J25 J24 J25 J24 J25 0.055 0.95 1.80 0.09 4 5.00 1.08 2 10 0.03 10.03 1.83 0.096 1.10 0.018649 0.011 0.0018 0.00362 0.5 0.00932 340.06 340.05 347.20 339.50 339.50 0.30 OK J24 J23 J26 0.000 0.00 1.80 0.31 8 1.00 0.88 59 19.04 J25 0.055 0.95 1.80 0,09 4 5.00 1.08 2 10.03 J24 0.000 0.00 1.80 0.00 J24 J23 J24 0.40 8 1.00 1.15 25 0.36 19.40 1.2 0.268 0.77 0.009171 0.011 0.0004 0.00882 0.75 0.00688 340.05 339.80 347.10 339.50 339.25 0.29 OK J23 J22 J24 0.000 0.00 1.80 0.40 8 1.00 1.15 25 19.44 J23 0.038 0.95 1.80 0.05 8 1.00 0.18 16 10 1.45 11.45 123 J22 J23 0.47 8 1.00 1.34 16 0.20 19.60 1.18 0,306 0.88 0.011932 0.011 0.0005 0.00734 0.3 0.00358 339.80 339.79 343.20 339.25 339.09 0.31 OK J22 J19 J32 0.114 0.95 1.80 0.65 12 0.50 0.83 57 17.37 J23 0.038 0.95 1.80 0.47 8 1.00 1.34 16 19.60 122 0.038 0.95 1.80 0.06 12 0.50 0.08 175 10 35.59 45.59 J22 9 J22 1.18 12 0.50 1.51 175 1.94 19.31 1.2 0.789 1.00 0.015675 0.011 0.0004 0.06146 0.75 0.01176 339.79E]�38.91 343.20 339.09 338.22 0.35 OK Page 5 Pipe Segment From To Upstream In•FIGw to Junction Area (acres) C value Assumed Intensity in Pipe Section Upstream Section Plow (cfs) Pipe Flow (cfs) Diameter (Inches) slope [%] Vpipe (fps) Length of Pipe (feet) Initial Time of Concentration to Drain Inlet (minutes) Time of Concentration in Pipe (LP,P./VPPC) (minutes) Accumulated Time of Concentration (minutes) Adjusted Intensity for Tc Based on Largest ImFlow (from IDF Chart) Adjusted Flow for Tc of Major In -Flow (cfs) Velocity (cfs) Hv Velocity Head (feet) n Manning's Coefficient 5 Friction Loss Slope Hf (feet) Km Hm (feet) HGLI Begin Hyd. Grd. Line HGLZ End Hyd. Grd. Line Elevation Flowline/ Manhole @ HGL1 Invert @ HGLI Invert @ HGL2 Liquid Depth to Diameter Ratio (d/D) 121 J20 J21 120 J21 0.360 0.85 1.80 0.55 8 1.00 1.58 11 10 0.12 10.12 1.82 0.557 1.60 0.039634 0.011 0.0015 0.01677 0.5 0.01982 339.17 339.13 342.53 338.67 338.56 0.43 OK J20 J19 J21 0.360 0.85 1.80 0.55 8 1.00 1.58 it 10.12 J20 0.379 0.70 1.80 0.48 8 1.00 1.37 34 10 0.41 10.41 J20 119 J20 1.03 8 1.00 2.95 34 0.19 10.31 1.81 1.034 2.96 0.136503 0.011 0.0053 0.17856 0.3 0.04095 339.13 338.91 342.35 338.56 338.22 0.62 OK J19 118 J22 0.038 0.95 1.80 1.18 12 0.50 1.51 175 19.31 J20 0.379 0.70 1.80 1.03 8 1.00 2.95 34 10.31 J19 0.000 0.00 1,80 0.00 J19 118 J19 2.21 12 0.50 2.82 21 0.12 19.43 1.2 1.475 1.88 0.054787 0.011 0.0012 0.02578 0.75 0.04109 338.91 338.85 343.40 338.22 338.00 0.50 OK J18 J14 J38 0.000 0.00 1.80 6.31 30 0.25 1.29 169 1 19.48 J19 0.000 0.00 1.80 2.21 12 0.50 2.82 21 19.31 J18 0.000 0.00 1.80 0.00 J18 J14 J18 8.57. 30 0.25 1.74 148 1.42 20.90 1.1.5 5.442 1.11 0.019104 0.013 0.0002 0.02608 0.75 0.01433 338.85 338.48 343.55 338.00 337.63 0.34 OK J17 J15 J17 J15 117 0.906 0.95 1.80 1.55 12 0.50 1.97 IZ5 10 1.06 11.06 1.75 1.507 1.92 0.057208 0.011 0.0013 0.16023 0.5 0.02860 339.91 339.28 343.50 339.40 338.77 0.51 OK J16 J15 J16 J15 J16 0.111 0.80 1.80 0.16 8 2.00 0.46 52 10 1.90 11.90 1.66 0.147 0.42 0.00275 0.011 0.0001 0.00550 0.5 0.00138 339.93 338.89 344.50 340.50 338.77 0.18 OK J15 J14 J17 0.906 0195 1.80 1.55 12 0.50 1.97 125 11.06 J16 0.111 0.80 1.80 0.16 8 2.00 0.46 52 11.90 J15 0.113 0.60 1.80 0.12 12 0.50 0.16 20 10 2.15 12.15 J15 J14 J15 1.83 12 0.50 2.33 20 0.14 11.20 1.72 1.750 2.23 0.077128 0.011 0.0017 0.03456 0.3 0.02314 338.55 338.55 344,45 338.77 337.63 0.55 OK J14 J13 J18 0.000 0.00 1.80 8.52 30 0.25 1.74 148 20.90 J15 0.113 0.60 1.80 1.83 12 0.50 2.33 20 11.20 J14 0.000 0.00 1.80 0.00 114 113 J14 10.35 30 0.25 2.11 168 1.33 22.23 1.1 6.324 1.29 0.0258 0,013 0.0002 0.03998 0.75 0.01935 33855 338.13 344.85 337.63 337.211 0.37 OK J13 112 J76 1.909 0.85 1.80 7.62 18 0.25 4.31 40 3.43 J14 0.000 0.00 1.80 10.35 30 0.25 2.11 168 22.23 J13 0.000 0.00 1.80 0.00 J13 J12 J13 17.97 30 0.25 3.66 266 1.21 23.44 1.O6 10.580 2.16 0.072201 0.013 0.0007 0.17714 0.75 0.05415 337.86 337.19 344.00 337.21 336.54 0.26 OK J12 J11 J13 0.000 0.00 1.80 17.97 30 0.25 3.66 266 23.44 J12 1.186 0.60 1.80 1.28 30 3.83 0.26 171 10 10.91 20.91 J12 Jii J12 19.25 30 3,83 3.32 171 0.73 24.16 1.2 12.831 2.62 0.106202 0.013 0.0010 0.16750 0.3 0.03186 333.70 333.50 344.70 336.54 330.00 0.28 OK 333.50 Page 6 Pipe Segment From To Upstream In -Flow to Junction Area (acres) C value Assumed Intensity in Pipe Section Upstream Section Flow (cfs) Pipe Flow (cfs) Diameter (Inches) Slope (%) Vpipe {fps) Length of Pipe (feet) Initial Time of Concentration to Drain Inlet (minutes) Time of Concentration in Pipe (i„EP,/v,,P,) (minutes) Accumulated Time of Concentration (minutes) Adjusted Intensity for Tc Based on Largest In -Flow (from IN Chart) Adjusted Flow for Tc of Major in -Flow (cfs) Velocity (cfs) Hv Velocity Head (feet) n Manning's Coefficient 5 Friction Loss Slope Hf (feet) Km Hm (feet) HGLI HGL2 Begin End Hyd. Grd. Hyd. Grd. Line Line Elevation Flowline/ Manhole @ HGLI Invert @ HGLI Invert @ HGL2 Liquid Depth to Diameter Ratio (d/D) J10 J09 J10 J09 110 0.699 0.80 1.80 1.01 12 0.50 1.28 121 10 1.57 11.57 1,69 0.945 1.20 0.022507 0,011 0.0005 0.06102 0.5 0.01125 340.25 339.65 342.68 339.31 338.68 0.39 OK J09 JDs 810 0.699 0.80 1.80 1.01 12 0.50 1.28 121 11.57 J09 0.589 0.90 1.80 0.95 18 0.50 0.54 11 10 0.34 10.34 J09 J08 J09 1.96 18 0.50 1.11 11 G.17 11.74 1.67 1.819 1.03 0.016476 0.011 0,0002 0.00237 03 0.00494 339.65 339.64 342.68 338.68 338.62 0.23 OK 108 J07 J09 0.589 0.90 1.80 1.96 18 0.50 1.11 11 11.74 J08 0.502 0.95 1.80 0.86 18 0.50 0.49 121 10 4.15 14.15 JOS J07 JOS _ 2.82 18 0.50 1.60 121 1.26 13.00 1.56 2.443 1.38 0.029704 0.011 0.0004 0.04690 0.3 0.00891 339.64 339.59 342.86 338.62 338.01 0.37 OK J07 106 J08 0.502 0.95 1.80 2.82 18 0.50 1.60 121 13.00 J07 0.598 0.95 1.80 1.02 18 0.50 0.58 it 10 0.32 10.32 107 106 J07 3.84 18 0.50 2.17 11 0.08 13.09 1.57 3.350 1.90 0.055862 0.011 0.0007 0.00802 D.3 0.01ti7b 339.59 339.56 342.91 338.01 337.95 0.43 OK J06 J05 107 0.598 0.95 1.80 3.84 1s 0.50 2.17 11 13.09 J06 0.401 0.95 1.80 0.68 18 0.50 0.39 121 10 5.20 15.20 J06 J05 J05 4.53 18 0.50 2.56 121 0.79 13.87 1.49 3.746 2.12 0.069861 0.011 0,0009 0.11031 0.3 0.02096 339.56 339.43 343.09 337.95 337.34 0.45 OK J05 J04 JO6 0.401 0.95 1.80 4.53 is 0.50 2.56 121 13.87 JQS 0.418 0.95 1.80 0.71 18 0.50 0.40 11 10 0.45 10.45 J05 J04 105 5.24 18 0.50 2.97 11 0.06 13.93 1.48 4.309 2.44 0.092411 0.011 0.0012 0.01327 0.3 0.02772 339.43 339.39 343.00 337,34 337.28 0.49 OK J04 J03 J05 0.418 0.95 1.80 5.24 18 0.50 2.97 11 13.93 J04 0.595 0.85 1.80 0.91 18 O.SD 0.52 25 10 0.81 10.81 J04 J03 J04 6.15 18 0.50 3.48 25 0.12 14.05 1.45 4.955 2.81 0.122206 0.011 0.0016 0.03987 0.3 0.03666 339.39 339.31 342.82 337.28 337.15 0.54 OK 103 J02 J04 0.595 0.85 1.80 6.15 18 0.50 3.48 25 14.05 J03 0.000 0.00 1.80 0,00 18 4.00 0.00 137 J03 J02 J03 6.15 18 4.00 3.48 137 0.66 14.71 1.43 4.887 2.77 0.118858 0.011 0.0016 0.21249 0.5 0.05943 339,31 333.83 345.20 337.15 332.21 0.61 OK J02 J01 J03 O.COG 0.00 1.80 6.15 18 4.00 3.48 137 14.71 J02 3.470 0.60 1.80 3.75 18 2.70 2.12 61 10 0,48 10.48 J02 J01 J02 9.90 18 2.70 5.60 61 0.18 14.89 1.42 7.809 4.42 0.303521 0.011 0.0040 0.24161 0.3 0.09106 333.83 333,50 345.20 332.21 330.00 0.31 OK 333.50 Equations: 4 = c * I * Area (in acres) R,,= AIPy, If HGLI(downstream pipe) > Invert(HGL2)+ (1/2)*(D112), then HGL, = HGL2 + Hm + Hr V w Q 1 A H, = S*L HGL2 = HGL3(downstream pipe) HV = V H, = Km'H., 2g If HGL,(downstream pipe) mar= Invert(HGL2)+ (1/2)*(D/12), then HGLI = HGL2 + (Pipe Slope)•L S2 V"n HGL2 = Inverl(HGL2) + (dID) * (0112) 1.486*Rh Page 7 EXHIBIT MAPS {- X ...... .... . .. ..... .... - Cf) ----- ----- - V z z z 0 u � n W4 z z", W of ga ...... .... . .. ..... .... - Cf) ----- ----- - V z z z 0 u � n W4 z z", W of