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Home My WebLink AboutSW3170701 - SMG Leasing LLC (7)r II ECF- IVSD JUL 112011 DENR-LAND QUALITY STORMWATER PERMITTING STORMWATER MANAGEMENT REPORT PREPARED FOR SMG Properties 142 Sherlock ®rive Statesville, NC MAY 18, 2017 in D. Mark Tart, PE 0G.L. WILSON BUILDING COMPANY PROJECT NARRATIVE: The site is located southeast of Davis Regional Medical Center, below the existing Internist's and Dermatology offices on Sherlock Drive. Site soils are of the Cecil series based on mapping from USDA Iredell County Soil Survey Series 1960, No. 14. The site is predominantly wooded, with a well-defined drainage channel dividing the property in a northerly direction. This phase of development will impact only the land west of the existing channel. Existing utilities (water, sewer, electricity) are available adjacent to the site, on property currently owned by SMG Properties. The storm drainage calculations are based on the rational method. Drainage area maps for the pre -developed and post -developed conditions are attached (sheets EX -1 and EX -2). Following each map is a data table used to calculate the composite CN, and composite rational "C" values. Calculations for peak discharge were determined using an excel spreadsheet. These flow rates were then used in Carlson Hydraulic modeling software to determine culvert size based on flowing 50% full during a 10 year storm event. Permanent storm water quantity is being provided on this site with an underground stormwater detention system. Calculations for design are included with this submittal. The proposed system attenuates the post -developed flows for the 1 year, 2 year, and 10 year storm events (see page 2 of the Hydraflow calculations for a summary). The site slopes from west to east, toward the existing drainage channel. Earthworks for the site will not require borrow/fill from another site. Topsoil from this site will be used on fill and cut slopes to insure that vegetation is established promptly after work is complete. Stormwater runoff shall be collected by use of swales, drainage piping, temporary slope drains, and catch basins. The storm drainage is designed for a 10 -year storm frequency. A skimmer basin has been provided to trap all sediment prior to reaching the existing channel. Silt fence, straw wattles, and sediment fence rock outlets will be constructed and maintained in accordance with the plans and project details. Rip -rap outlets were designed using an excel worksheet obtained from the NCDEQ- DEMLR, and are attached for review. Erosion Control Plan has been reviewed and approved by Iredell County Development Services, Planning Division — Erosion Control Section on May 2, 2107, Project ID IREDE-2017-078. Table of Contents 1: USGS Quad, Statesville East EX -A Pre -developed Drainage Area Map EX -1 Pre -developed Composite CN 2 Post -developed Drainage Area Map EX -2 Post -developed Composite CN 3 Rational Calculations 4 Storm Sewer Network Report 5 Stormtech Cumulative Storage Volumes 10 Stormtech Design details 11-16 Hydraflow Stage -Storage Curve 17 Hydraflow Stage -Discharge Curve 18 Hydraflow outlet structure — front view 19 Hydraflow outlet structure — section 20 Hydraflow Table of Contents 2 USGS Quad, Statesville East, - �+ i � i1 �� r` -.�I' � � 1 -` j .. _ � � rn' k'.•:� _�'� it J- �..,. t�_ �, i��t' 500 cc f, Exhibit A MDC Investigation: MDC 1: A soil investigation was performed by Catawba Valley Engineering and Testing (CVET) on June 26, 2017. Three hand augers were performed, beginning at the bottom of the infiltration basin. The results of these tests are included as an attachment to this submittal MDC 2: The above referenced testing included determining the relative location of the SHWT. Based on test pit B, the SHWT is greater than ten (10) feet below the bottom of the infiltration basin. MDC 3: The soil subgrade surface is designed with no (zero) slope. (see detail 2 of 6, sheet C4.1) MDC 4: Pretreatment is provided at both inlets (30" nyoplast inlet) with a two (2) ft sump. See detail 4 of 6, sheet C4.1. MDC 5: The soil investigation performed by CVET concluded that the infiltration rate of the 3 samples taken to be 0.1417 inches/hour. Based on a factor of safety of 2, the required minimum surface area required for a drawdown time of 72 hours is: SA DV FS * (K * T) where:_ SA = required minimum surface, area of infiltration system (ftz) -FS = factor of safety (minimum of 2 is recommended) DV = design volume,(W) K = hydraulic conductivity of soil (in/hr) T = - maximum dewatering time (72 hours) SAreq = (4,883 cf/(2 x 0.1417 in/hr x 72 hr) = 239.33 sf SAprop = 97.46 ft x 4.25 ft = 414.21 sf Based on a factor of safety of 2, and a hydraulic conductivity of 0.1417 in/hr, this infiltration basin will draw down in: T= 4,883 cf / (414.21 sf x 2 x 0.1417 in/hr) = 40.60 hrs MDC 6: Inspection report is provided centered on the isolation row, see detail 4 of 6, sheet C4.1 Project- 2016-075 SMG Properties Date. 5/18/2017 Title- Pre -developed Composite CN CN c G.L. WILSON composite Composite Tc UIL®ING COMPANY 61 name total sub 095 acreage acreage cb-1 0.535419 000 impervious 55 0.00 grass 0.54 wooded cb-2 0.294996 0.04 impervious 61 0.2 0 00 grass 55 0.26 wooded cb-3 0.086744 0.00 impervious 0.95 55 0.00 grass 61 02 0 09 wooded cb-4 0214885 0.00 impervious 0.00 grass 0.95 55 0.21 wooded cb-5 0.167875 0.04 impervious 55 0.03 grass 0.10 wooded cb-6 0.074115 000 impervious 61 0.2 0.00 grass 55 0.07 wooded cb-7 0.246039 004 impervious 0.95 55 0.03 grass 61 02 0 18 wooded cb-8 0.194127 0.02 impervious 0.02 grass 0.95 62 0.15 wooded basin 9 0.701901 0.00 impervious 55 0.00 grass 0 70 wooded basin 10 0209637 0.00 impervious 61 0.2 0.00 grass 55 0 21 wooded Project- 2016-075 SMG Properties Date. 5/18/2017 Title- Pre -developed Composite CN CN c 0.95 composite Composite Tc 10 61 CN C 98 095 55 015 5 61 0.2 55 0.15 98 0.95 61 026 24 61 0.2 55 0.15 98 0.95 55 0.15 5 61 02 55 015 98 0.95 55 0.15 5 61 02 55 015 98 095 67 0.36 5 61 0.2 55 0.15 98 0.95 55 015 5 61 02 55 0.15 98 0.95 62 0.28 5 61 0.2 55 015 98 0.95 61 0.25 5 61 0.2 55 0.15 98 095 55 0.15 7 61 0.2 55 0.15 98 0.95 55 0.15 10 61 0.2 55 0.15 pre -developed 2.725737 0 12 impervious 98 095 57 019 14 0.08 grass 61 0.2 2.51 wooded 55 0 15 -developed 2725737 0.99 impervious 98 0.95 73 0.46 0.91 grass 61 0.2 0.82 wooded 55 0.15 2016-075 SMG Properties G.L.Project: GWILSON .L. Date. 5/18/2017 BUILDING COMPANY Title: Post developed Composite CN name total sub CN c composite Composite Tc acreage acreage CN C cb-1 0.535419 0.33 impervious 98 0.95 84 0.66 5 0.21 grass 61 0.2 0.00 wooded 55 0.15 cb-2 0294996 004 impervious 98 0.95 62 0.27 24 0.06 grass 61 0.2 0.19 wooded 55 0.15 cb-3 0.086744 0.08 impervious 98 0.95 95 0.89 5 0.01 grass 61 0.2 0.00 wooded 55 0.15 cb-4 0.214885 0.06 impervious 98 095 71 0.40 5 0.16 grass 61 0.2 0.00 wooded 55 015 cb-5 0.167875 0 06 impervious 98 0.95 74 0.47 5 0.11 grass 61 0 2 0.00 wooded 55 0.15 cb-6 0.074115 0.06 impervious 98 0.95 91 0.82 5 001 grass 61 0.2 0.00 wooded 55 0.15 cb-7 0246039 0.21 impervious 98 095 92 0 83 5 0.04 grass 61 0.2 0 00 wooded 55 0.15 cb-8 0.194127 0.11 impervious 98 0.95 83 064 5 0.08 grass 61 0.2 0 00 wooded 55 0.15 basin 9 0.701901 005 impervious 98 0.95 59 0.21 7 0.13 grass 61 0.2 0.53 wooded 55 0.15 basin 10 0209637 0.00 impervious 98 0.95 58 0.18 10 0.11 grass 61 0.2 0.10 wooded 55 0.15 -developed 2725737 0.99 impervious 98 0.95 73 0.46 0.91 grass 61 0.2 0.82 wooded 55 0.15 uu (1 � ai is +� CL 0 H v cY0 LD 01 I, N 00 Ol O U O l0 a --I CD lD -! lD 1 - Cf E H N m m O ri H m Z3 u lD 00 to CO N w -1 Ct cf U O V1 Ln d' LD V1 to i, 14 -i O O O O O m M Ln r� n r0 1 -, N ei O C O O O O u lD N � rn O O O O m m -zt rl N O H lD O O O O m m m m 0 o O o r\ n i` t` N N ct 00 0) H O 1, 01 U! 00 N O O O O 00 r� L� T N m d' ri u U u u U u U U ewer Network Report - Pipe .aer Network File: ,ound Surface File: ign Method: Iro Method: iinfall ID: urn Period: Thu May 18 13:36:11 2017 G:\CURRENT\2016-075 SMG Properties\2016-075 Current\: G:\CURRENT\2016-075 SMG Properties\2016-075 Current\: Peak Discharge Calculation Rational Method Charlotte NC - Design Manual 10 YEAR !wer Line From Upstream to Downstream le from CB -1 to JB -10, system A 'erial: Concrete tion Type: Circular action Area: 1.77 sq.ft -meter: 18.00 in ning's n: 0.013 ?ngth: 53 ft -pe: 1.73 % 1 Flow: 13.85 cfs «imum Flow: 14.90 cfs )tal Flow: 3.74 cfs k Time: 6.11 min ._vel Time: 0.26 min iitial Travel Time: 0.13 min tial Flow Velocity: 6.66 fps 1 Flow Velocity: 7.84 fps Invert Rim Elev Cover HGL EGL Flow Elev (ft) (ft) (ft) (ft) (ft) Depth (ii )wnstream 873.13 878.93 4.30 874.35 874.44 14.59 tream 874.06 877.76 2.20 874.79 875.08 8.87 _pe from JB -10 to JB -13, system A erial: Concrete !ction Type: Circular tion Area: 1.77 sq.ft meter: 18.00 in ning's n: 0.013 �ngth : 19 ft pe: 1.00 % ._l Flow: 10.53 cfs iximum Flow: 11.33 cfs al Flow: 5.42 cfs _k Time: 6.16 min -avel Time: 0.05 min tial Travel Time: 0.05 min tial Flow Velocity: 6.00 fps ill Flow Velocity: 5.96 fps Invert Rim Elev Cover HGL EGL Flow Elev (ft) (ft) (ft) (ft) (ft) Depth (ii nstream 872.74 878.87 4.63 873.50 874.06 9.15 tream 872.93 878.93 4.50 873.69 874.25 9.15 ~e from CB -2 to CB -3, system A Page 1 of 5 --erial: Concrete ;tion Type: Circular .-tion Type: Circular _ameter: 15.00 in action Area: 1.23 sq.ft 29 ft imeter: 15.00 in '_l Flow: 13.66 cfs zning's n: 0.013 cfs >tal Flow: 1.68 cfs �ngth : 24 ft Page 2 of 5 )pe: 2.01 % Ll Flow: 9.19 cfs iximum Flow: 9.88 cfs =al Flow: 0.62 cfs ik Time: 5.17 min -avel Time: 0.17 min Ltial Travel Time: 0.09 min Ltial Flow Velocity: 4.26 fps ill Flow Velocity: 7.49 fps Invert Rim Elev Cover HGL EGL Flow Elev(ft) (ft) (ft) (ft) (ft) Depth(ii ,Tanstream 882.87 886.94 2.82 883.23 883.30 4.36 Stream 883.35 887.35 2.75 883.66 883.77 3.69 _De from CB -3 to CB -4, system A _-erial: Concrete ;tion Type: Circular action Type: Circular _ameter: 15.00 in -tion Area: 1.23 sq.ft 29 ft imeter: 15.00 in '_l Flow: 13.66 cfs inning's n: 0.013 cfs >tal Flow: 1.68 cfs igth: 127 ft Page 2 of 5 )pe: 6.30 % ill Flow: 16.26 cfs <imum Flow: 17.49 cfs ;al Flow: 1.19 cfs !ak Time: 5.91 min -avel Time: 0.74 min Ltial Travel Time: 0.27 min dtial Flow Velocity: 7.73 fps ,11 Flow Velocity: 13.25 fps Invert Rim Elev Cover HGL EGL Flow Elev (ft) (ft) (ft) (ft) (ft) Depth (ii onstream 874.67 878.47 2.55 875.19 875.28 6.19 .atream 882.67 886.94 3.02 883.10 883.26 5.17 )e from CB -4 to JB -10, system A iterial: Concrete ;tion Type: Circular ;tion Area: 1.23 _ameter: 15.00 in ining's n: 0.013 igth: 29 ft _ope: 4.45 % '_l Flow: 13.66 cfs :imum Flow: 14.69 cfs >tal Flow: 1.68 cfs --ik Time: 6.11 min Page 2 of 5 sq.ft -avel Time: 0.19 min tial Travel Time: 0.06 min .itial Flow Velocity: 7.58 fps ill Flow Velocity: 11.13 fps Invert Rim Elev Cover HGL EGL Flow Elev (ft) (ft) (ft) (ft) (ft) Depth (ii onstream 873.18 878.93 4.50 874.32 874.35 13.70 Stream 874.47 878.47 2.75 874.99 875.18 6.18 )e from CB-6 to JB-11, system A iterial: Concrete ,tion Type: Circular :tion Area: 1.23 sq.ft _ameter: 15.00 in -ining's n: 0.013 lgth: 48 ft _ope: 2.94 % ,ll Flow: 11.11 cfs cimum Flow: 11.95 cfs ,L;al Flow: 0.48 cfs yak Time: 5.95 min ivel Time: 0.56 min .-tial Travel Time: 0.18 min iitial Flow Velocity: 4.51 fps _1 Flow Velocity: 9.06 fps Invert Rim Elev Cover HGL EGL Flow Elev(ft) (ft) (ft) (ft) (ft) Depth(ii vnstream 873.23 880.38 5.90 874.28 874.28 12.55 )stream 874.66 879.08 3.18 874.93 875.02 3.24 )e from JB-11 to JB-12, system A yerial: Concrete :tion Type: Circular action Area: 1.77 sq.ft -ameter: 18.00 in ining's n: 0.013 .ngth : 13 ft ape: 1.81 % .1 Flow: 14.16 cfs «,imum Flow: 15.23 cfs )tal Flow: 3.67 cfs Lk Time: 5.98 min _Lvel Time: 0.03 min iitial Travel Time: 0.03 min .tial Flow Velocity: 6.73 fps .1 Flow Velocity: 8.01 fps Invert Rim Elev Cover HGL EGL Flow Elev (ft) (ft) (ft) (ft) (ft) Depth (ii )wnstream 872.74 880.19 5.95 873.26 873.96 6.25 stream 872.98 880.38 5.90 873.50 874.20 6.25 pe from CB -8 to CB -7, system A Page 3 of 5 iterial: Concrete action Type: Circular tion Type: Circular 'meter: 18.00 in .:tion Area: 1.23 sq.ft 13 ft _ameter: 15.00 in ill Flow: 30.69 cfs -ining's n: 0.013 cfs :al Flow: 3.19 cfs zgth : 64 ft --vel Time: 0.07 min _ope: 2.00 % Ll Flow: 9.16 cfs ,,imum Flow: 9.86 cfs >tal Flow: 1.06 cfs )-k Time: 5.41 min 'vel Time: 0.41 min ''tial Travel Time: 0.21 min Ltial Flow Velocity: 4.98 fps Ll Flow Velocity: 7.47 fps Invert Rim Elev Cover HGL EGL Flow Elev (ft) (ft) (ft) (ft) (ft) Depth (ii )wnstream 883.42 888.70 4.03 883.94 884.02 6.30 stream 884.70 888.66 2.71 885.10 885.25 4.86 pe from CB -7 to CB -5, system A --erial: Concrete action Type: Circular tion Type: Circular 'meter: 18.00 in action Area: 1.77 sq.ft 13 ft .meter: 18.00 in ill Flow: 30.69 cfs Zning's n: 0.013 cfs :al Flow: 3.19 cfs �ngth: 99 ft --vel Time: 0.07 min )pe: 8.64 0 Ll Flow: 30.96 cfs iximum Flow: 33.30 cfs ;al Flow: 2.64 cfs ik Time: 5.88 min ,avel Time: 0.48 min ,=-'tial Travel Time: 0.15 min 'Ltial Flow Velocity: 10.68 fps ill Flow Velocity: 17.52 fps Invert Rim Elev Cover HGL EGL Flow Elev (ft) (ft) (ft) (ft) (ft) Depth (ii )wnstream 874.60 880.03 3.93 875.34 875.49 8.82 stream 883.17 888.70 4.03 883.79 884.02 7.39 Pe from CB -5 to JB -11, system A _-erial: Concrete action Type: Circular :tion Area: 1.77 'meter: 18.00 in inning's n: 0.013 igth : 13 ft )pe: 8.49 % ill Flow: 30.69 cfs cimum Flow: 33.01 cfs :al Flow: 3.19 cfs yak Time: 5.95 min --vel Time: 0.07 min Page 4 of 5 sq.ft iitial Travel Time: 0.02 tial Flow Velocity: 11.23 _-1 Flow Velocity: 17.36 Invert Rim Elev Elev (ft) (ft) )wnstream 873.23 880.38 tream 874.35 880.03 _pe from CB-9 to CB-4, system A erial: Concrete action Type: Circular -:tion Area: 0.79 meter: 12.00 inning's n: 0.013 --gth: 57 pe: 5.80 iLl Flow: 8.60 +ximum Flow: 9.26 al Flow: 0.00 ;ak Time: 5.91 ravel Time: 0.00 tial Travel Time: 0.00 __tial Flow Velocity: 0.00 ill Flow Velocity: 10.95 Invert Rim Elev Elev (ft) (ft) :;nstream 874.72 878.47 tream 878.05 880.27 e from OCS-1 to FES-18, system A Lterial: Concrete --tion Type: Circular tion Area: 1.77 _ameter: 18.00 inning's n: 0.013 gth: 54 _upe: 1.02 ill Flow: 10.62 imum Flow: 11.42 .-al Flow: 0.00 :ak Time: 5.00 vel Time: 0.00 tial Travel Time: 0.00 dtial Flow Velocity: 0.00 1 Flow Velocity: 6.01 Invert Rim Elev Elev (ft) (ft) nstream 868.95 877.76 )stream 869.50 878.48 min HGL EGL Flow fps (ft) (ft) Depth (ii fps 874.72 874.72 0.00 Cover HGL EGL Flow (ft) (ft) (ft) Depth (ii 5.65 874.31 874.39 12.95 4.18 875.03 875.30 8.16 sq. ft in ft 0 cfs cfs cfs min min min fps fps Cover HGL EGL Flow (ft) (ft) (ft) Depth (ii 2.75 874.72 874.72 0.00 1.22 878.05 878.05 0.00 sq. ft in ft 0 cfs cfs cfs min min min fps fps Cover HGL EGL Flow (ft) (ft) (ft) Depth (ii 7.31 868.95 868.95 0.00 7.48 869.50 869.50 0.00 Page 5 of 5 Project: SMG Properties ../� Chamber Model - 1 51D,-740 Stof`fnTeeh- tinitS - Imperial Click Here for Met -71 - ii �f7$T011 of �iAJ Number of chambers - .60_ Voids in the stone (porosity) - 40' % Base of STONE Elevation - 8.69':24' w _ ft RI Include Perimeter Stone in Calculations Amount of Stone Above Chambers - & in Amount of Stone Below Chambers - W 6 " - in Area of system - 2519 sf Min. Area - 2028 sf min. area StormTech SC -740 Cumulative Stora a Volumes Hei`fit oft 9 �Incr6riaentMfSin Ib, 9 ' " Incrernentff " ` Increme'n_talr Win': llhi 6fhental •C� mulati et.;"I - � a Systems; ^Cham6ef Total"Cliainl'er .'sM a Stone ` ;•:� ;Ch & St 1 Chamb - >;�, € AElevatiori �ncfves; cubic feet -&0 t) cubic:feef _ r_, cubic feet CU 2 feet 'a 39 42 0.00 0.00 83.97 83.97 5180.83 872.74 41 0.00 0.00 83.97 83.97 5096.86 872.66 40 0.00 0.00 83.97 83.97 5012.90 87257 39 0.00 0.00 83.97 83.97 4928.93 872.49 38 0.00 0.00 83.97 83.97 4844.96 872.41 37 0.00 0.00 83.97 83.97 4761.00 872.32 36 0.05 3.30 82.65 85.95 4677.03 872.24 35 0.16 9.78 80.06 89.83 4591.08 872.16 34 0.28 16.92 77.20 94.12 4501.25 872.07 33 0.60 36.24 69.47 105.71 4407.14 871.99 32 0.80 48.10 64.73 112.83 430143 871.91 31 0.95 5704 61.15 118.19 418860 871.82 30 1.07 64.47 58.18 122.65 4070.41 871.74 29 1.18 70.83 55.63 12646 3947.76 871.66 28 1.27 75.94 53.59 129.53 3821.29 871.57 27 1.36 8130 51.45 132.75 3691.76 871.49 26 1.45 87.25 49.07 136.31 3559.02 871.41 25 1.52 91.48 47.37 138.86 3422.70 871.32 24 1.58 94.94 45.99 140.93 3283.84 871.24 23 1.64 98.54 44.55 143.09 3142.91 871.16 22 1.70 10197 43.18 145.15 2999.83 871.07 21 1.75 105.18 41.90 147.07 2854.68 870.99 20 1.80 108.17 40.70 148.87 270760 870.91 19 1.85 111.30 39.45 150.75 2558.74 870.82 18 1.89 113.59 38.53 152.12 2407.99 870.74 17 1.93 116.04 37.55 153.59 2255.87 870.66 16 1.97 118.50 36.57 155.07 2102.28 870.57 15 2.01 120.60 35.73 156.32 1947.21 87049 14 2.04 122.70 34.89 157.59 1790.89 870.41 13 2.07 124.50 34.17 15867 1633.30 870.32 12 2.10 12629 33.45 159.74 1474.64 870.24 11 2.13 127.91 32.80 160.71 1314.90 870.16 10 2.15 129.23 32.27 161.51 1154.18 870.07 9 2.18 130.62 31.72 162.34 992.68 869.99 8 2.20 131.90 31.21 163.11 830.34 869.91 7 2.21 13244 30.99 163.43 667.23 869.82 6 0.00 0.00 83.97 83.97 503.80 869.74 5 0.00 0.00 83.97 8397 419.83 869.66 4 0.00 0.00 83.97 83.97 335.87 869.57 3 0.00 0.00 83.97 83.97 251.90 869.49 2 0.00 0.00 83.97 83.97 167.93 869.41 1 0.00 0.00 83.97 83.97 83.97 869.32 Pond Report Hydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc v11 Thursday, 05 / 18 / 2017 Pond No. 1 - <New Pond> Weir Structures Pond Data [A] UG Chambers -Invert elev = 869 74 ft, Rise x Span = 2 50 x 4 25 ft, Barrel Len = 90.00 ft, No Barrels = 5, Slope = 0 00%, Headers = Yes Encasement -Invert elev = 869 24 ft, Width = 6.00 ft, Height = 4.00 ft, Voids = 40.00% [B] Stage / Storage Table [D] Rise (in) = 400 Stage (ft) Elevation (ft) Contour area (sqft) Incr. Storage (cult) Total storage (cuft) 000 86924 n/a 0 0 0.40 86964 n/a 490 490 080 87004 n/a 879 1,369 1.20 87044 n/a 999 2,368 1 60 87084 n/a 974 3,342 200 87124 n/a 933 4,275 2.40 871 64 n/a 870 5,145 2.80 87204 n/a 768 5,913 320 87244 n/a 558 6,471 3.60 87284 n/a 490 6,961 4.00 87324 n/a 490 7,451 Culvert / Orifice Structures Weir Structures [A] [B] [C] [PrfRsr] [A] [B] [C] [D] Rise (in) = 400 600 600 0.00 Crest Len (ft) = 600 Inactive 000 000 Span (in) = 4.00 600 600 000 Crest EI. (ft) = 87224 872.66 000 000 No. Barrels = 1 1 1 0 Weir Coeff. = 333 3.33 333 333 Invert EI. (ft) = 86924 87070 871 18 000 Weir Type = Rect 15 degV --- --- Length (ft) = 033 033 0.33 000 Multi -Stage = No No No No Slope (%) = 1 00 1 00 1 00 n/a N -Value = 013 013 013 n/a Orifice Coeff. = 060 060 060 060 Exfil.(in/hr) = 0 020 (by Wet area) Multi -Stage = n/a No No No TW EIev. (ft) = 86944 Stage (ft) 400 300 200 1 00 0 00 0 700 Storage Note Culvert/Orifice outflows are analyzed under inlet (ic) and outlet (oc) control Weir risers checked for onfice conditions (ic) and submergence (s) Stage / Storage Elev (ft) 87324 87224 871.24 87024 ' I I I I 1' 86924 1,400 2,100 2,800 3,500 4,200 4,900 5,600 6,300 7,000 7,700 Storage (cuft) Pond Report Hydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc v11 Thursday, 05 / 18 / 2017 Pond No. 1 - <New Pond> Pond Data UG Chambers -Invert elev = 869 74 ft, Rise x Span = 2 50 x 4 25 ft, Barrel Len = 90 00 ft, No Barrels = 5, Slope = 0 00%, Headers = Yes Encasement -Invert elev = 869 24 ft, Width = 6 00 ft, Height = 4 00 ft, Voids = 40 00% Stage / Storage Table Stage (ft) Elevation (ft) Contour area (sqft) Incr. Storage (cuft) Total storage (cuft) 000 86924 n/a 0 0 040 86964 n/a 490 490 080 870.04 n/a 879 1,369 1 20 87044 n/a 999 2,368 1 60 870.84 n/a 974 3,342 200 871 24 n/a 933 4,275 240 871 64 n/a 870 5,145 280 872.04 n/a 768 5,913 320 87244 n/a 558 6,471 360 87284 n/a 490 6,961 400 87324 n/a 490 7,451 Culvert / Orifice Structures Weir Structures [A] [B] [C] [PrfRsr] [A] [B] [C] [D] Rise (in) = 400 600 600 0.00 Crest Len (ft) = 600 Inactive 0.00 000 Span (in) = 400 600 600 000 Crest EI. (ft) = 87224 87266 0.00 000 No. Barrels = 1 1 1 0 Weir Coeff. = 333 333 3.33 333 Invert EI. (ft) = 86924 87070 871 18 000 Weir Type = Rect 15 degV --- --- Length (ft) = 033 033 033 000 Multi -Stage = No No No No Slope (%) = 1 00 1 00 1 00 n/a N -Value = 013 013 013 n/a Orifice Coeff. = 060 060 0.60 060 EAL(in/hr) = 0.020 (by Wet area) Multi -Stage = n/a No No No TW Elev. (ft) = 86944 Stage (ft) 400 300 200 1 00 000 ' ' 000 2.00 Total Q Note Culvert/Orifice outflows are analyzed under inlet (ic) and outlet (cc) control Weir risers checked for orifice conditions (ic) and submergence (s) Stage / Discharge Elev (ft) 87324 87224 871 24 87024 'I I I I I I I I 1' 869.24 400 600 8.00 10.00 1200 1400 16.00 1800 2000 2200 24.00 Discharge (cfs) Pond N o. 1 - < 1 V eW P ®n d > Hydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc. v11 500 Top of pond Elev 873 24 400 300 in orifice v - nv p 1 p 8 6.00 ft Rect weir WeirA - Elev 872 24 200 03 LF of 40 in@100% CuIvA -Inv 869.24 1 00 Fro iew 000 NTS - Lookingownst e m Stage (ft) �o om of pond Elev 869 24 25 -yr 10 -yr 100 -yr 2 -yr 50 -yr 1 -yr Inflow hydrograph = 14 Combine - site discharge - pre -detention Project. alt10.gpw Thursday, 05 / 18 / 2017 Pond No. ®• 1 - < 1 V eW r ®n d' Hydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc v11 500 400 300 200 1 00 Sec tion 000 NTS Stage (ft) 25 -yr 10 -yr 100 -yr 2 -yr 50 -yr 1 -yr Inflow hydrograph = 14 Combine - site discharge - pre -detention Project. aIt10 gpw Thursday, 05 / 18 / 2017 Watershed Model Schematic 1 Hydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc v11 1 - pre-developbd cb-1 3 - cb-2 4 - cb-3 5 - cb-4 Rf 12 - combination hydrograph 6 - cb-5 7 - cb-6 8 - cb-7 9 - cb-8 10 - basin 9 11 -b CD CD V1; V14 - site discharge - pre -detente Le end 15 - UG Detention 1w Hvd• Origin Description 1 SCS Runoff pre -developed 2 SCS Runoff cb-1 3 SCS Runoff cb-2 4 SCS Runoff cb-3 5 SCS Runoff cb-4 6 SCS Runoff cb-5 7 SCS Runoff cb-6 8 SCS Runoff cb-7 9 SCS Runoff cb-8 10 SCS Runoff basin 9 11 SCS Runoff basin 10 12 Combine combination hydrograph 13 Combine combination hydrograph 14 Combine site discharge - pre -detention 15 Reservoir UG Detention 16 Combine Total post -developed discharge Project: aIt10.gpw 16 -Total post -developed Thursday, 05 / 18 / 2017 Hydrograph Return Period Req y flow Hydrographs Extension for AutoCADO Civil 3DO 2016 by Autodesk, Inc v11 Hyd. Hydrograph Inflow Peak Outflow (cfs) Hydrograph No. type hyd(s) Description (origin) 1 -yr 2 -yr 3 -yr 5 -yr 10 -yr 25 -yr 50 -yr 100 -yr 1 SCS Runoff ------ 0 899 1 905 ------- ------- 5 446 7 901 1001 1226 pre -developed 2 SCS Runoff ------ 1 155 1 572 ------- ------- 2 744 3 454 4 028 4 609 cb-1 3 SCS Runoff ------ 0 055 0 133 ------- ------- 0 438 0 657 0 846 1 048 cb-2 4 SCS Runoff ------ 0 285 0 357 ------- ------- 0 547 0 660 0 750 0.841 cb-3 5 SCS Runoff ------ 0202 0 328 ------- ------- 0 718 0 973 1 188 1 411 cb-4 6 SCS Runoff ------ 0200 0 307 ------- ------- 0 629 0 837 1 010 1.188 cb-5 7 SCS Runoff ------ 0 210 0 271 ------- ----- 0 436 0.534 0 613 0 692 cb-6 8 SCS Runoff ------ 0 698 0 901 ------- ------- 1 449 1 773 2034 2 297 cb-7 9 SCS Runoff ------ 0 379 0 524 ------- ------- ,0 942 1 198 1 406 1 617 cb-8 10 SCS Runoff ------ 0 033 0 196 ------- ------- 1 001 1 622 2 170 2 760 basin 9 11 SCS Runoff ------ 0.009 0 053 ------- ------- 0 280 0.457 0 614 0 784 basin 10 12 Combine 2, 3, 4, 1 661 2 322 ------- ------ 4 297 5 546 6 577 7 635 combination hydrograph 5, 13 Combine 6, 7, 8, 1 480 1 998 ------- ------- 3 455 4 342 5 062 5 793 combination hydrograph 9, 14 Combine 12,13 3 141 4.312 ------- ------- 7 748 9.888 11 64 1343 site discharge - pre -detention 15 Reservoir 14 0 452 0 599 ------- ------- 3.047 8 129 11 09 1321 UG Detention 16 Combine 10, 11, 15 0 483 0 760 ------- ------- 3 705 1006 13.80 1675 Total post -developed discharge Proj. file: alt10.gpw Thursday, 05 / 18 / 2017 'Hydrograph Summary Report Hydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc. v11 Hyd. No. Hydrograph type (origin) Peak flow (cfs) Time interval (min) Time to Peak (min) Hyd. volume (cuft) Inflow hyd(s) Maximum elevation (ft) Total strge used (cuft) Hydrograph Description 1 SCS Runoff 0 899 1 724 3,438 ------ ------ --- - pre -developed 2 SCS Runoff 1.155 1 719 2,439 ---- ------ ------ cb-1 3 SCS Runoff 0.055 1 728 309 ------ ---- cb-2 4 SCS Runoff 0.285 1 718 633 -- -- cb-3 5 SCS Runoff 0202 1 719 461 ---- -- -- cb-4 6 SCS Runoff 0.200 1 719 438 -- --- cb-5 7 SCS Runoff 0.210 1 718 451 -- --- cb-6 8 SCS Runoff 0.698 1 718 1,498 --- -- ----- cb-7 9 SCS Runoff 0.379 1 719 798 ---- — — -- cb-8 10 SCS Runoff 0.033 1 723 360 -- --- - ------ basin 9 11 SCS Runoff 0.009 1 725 110 ------ ----- ------ basin 10 12 Combine 1.661 1 719 3,843 2, 3, 4, -- combination hydrograph 5, 13 Combine 1 480 1 718 3,185 6, 7, 8, ----- - -- combination hydrograph 9, 14 Combine 3.141 1 719 7,028 12,13 -- -- ---- site discharge - pre -detention 15 Reservoir 0.452 1 738 6,687 14 87060 2,749 UG Detention 16 Combine 0.483 1 727 7,157 10, 11, 15 ------ ------ Total post -developed discharge alt10.gpw Return Period: 1 Year Thursday, 05 / 18 / 2017 Hydrograph Report 4 Hydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc v11 Thursday, 05 / 18 / 2017 Hyd. filo. 1 pre -developed Hydrograph type = SCS Runoff Peak discharge = 0.899 cfs Storm frequency = 1 yrs Time to peak = 12.07 hrs Time interval = 1 min Hyd. volume = 3,438 cuft Drainage area = 2.720 ac Curve number = 63* Basin Slope = 5.0% Hydraulic length = 75 ft Tc method = TR55 Time of conc. (Tc) = 12.60 min Total precip. = 2.80 in Distribution = Type II Storm duration = 24 hrs Shape factor = 486 * Composite (Area/CN) = [(0 080 x 98) + (0 038 x 98) + (2 606 x 61)] / 2 720 Q (cfs) 1.00 0.90 0.80 0.70 0.60 0.50 0.40 0.30 0.20 0.10 0.00 ' 1' 0 2 4 Hyd No. 1 pre -developed Hyd. No. 1 -- 1 Year 6 8 10 12 14 16 Q (cfs) 1.00 0.90 0.80 0.70 0.60 0.50 0.40 0.30 0.20 0.10 ' ' ' " ' 0.00 18 20 22 24 26 Time (hrs) 5 Hydrograph Report Hydraflow Hydrographs Extension for AutoCADO Civil 31DO 2016 by Autodesk, Inc v11 Hyd. No. 2 Time to peak cb-1 Hyd. volume Hydrograph type = SCS Runoff Storm frequency = 1 yrs Time interval = 1 min Drainage area = 0.535 ac Basin Slope = 0.0% Tc method = User Total precip. = 2.80 in Storm duration = 24 hrs Thursday, 05 / 18 / 2017 Peak discharge = 1.155 cfs Time to peak = 11.98 hrs Hyd. volume = 2,439 cuft Curve number = 83 Hydraulic length = 0 ft Time of conc. (Tc) = 8.00 min Distribution = Type II Shape factor = 484 cb-1 Q (cfs) Hyd. No. 2 -- 1 Year 2.00 1.00 0 00 Q (cfs) 2.00 1.00 on 0 2 4 6 8 10 12 14 16 18 20 22 24 26 Hyd No. 2 Time (hrs) Hydrograph Report Hydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc. v11 Hyd. No. 3 Time to peak cb-2 Hyd. volume Hydrograph type = SCS Runoff Storm frequency = 1 yrs Time interval = 1 min Drainage area = 0.295 ac Basin Slope = 0.0% Tc method = User Total precip. = 2.80 in Storm duration = 24 hrs Q (cfs) 0.10 0.09 0.08 0.07 0.06 -� - 0.05 T 0.04 0.03 ---- ------- 0.02 _ - — - ------ — 0.01 ---- -- ---- --- 0 00 0 2 4 Hyd No. 3 6 Thursday, 05 / 18 / 2017 Peak discharge = 0.055 cfs Time to peak = 12.13 hrs Hyd. volume = 309 cult Curve number = 61 Hydraulic length = 0 ft Time of conc. (Tc) = 18.00 min Distribution = Type II Shape factor = 484 cb-2 Hyd. No. 3 -- 1 Year Q (cfs) Hydrograph Report Hydraflow Hydrographs Extension for AutoCAD@) Civil 3D@) 2016 by Autodesk, Inc v11 Hyd. No. 4 Time to peak cb-3 Hyd. volume Hydrograph type = SCS Runoff Storm frequency = 1 yrs Time interval = 1 min Drainage area = 0.087 ac Basin Slope = 0.0% Tc method = User Total precip. = 2.80 in Storm duration = 24 hrs Q (CfS11 0.50 0.45 0.40 0.35 0.30 0.25 0.20 0.15 0.10 0.05 7 Thursday, 05 / 18 / 2017 Peak discharge = 0.285 cfs Time to peak = 11.97 hrs Hyd. volume = 633 cuft Curve number = 93 Hydraulic length = 0 ft Time of conc. (Tc) = 8.00 min Distribution = Type II Shape factor = 484 MM I It M MMM FOOM.- MMM Q (cfs) 0.50 0.45 0.40 0.35 0.30 0.25 0.20 0.15 0.10 0.05 n nn 4.0 6.0 8.0 10.0 12.0 14.0 16.0 18.0 20.0 22.0 Time (hrs) Hydrograph Report Hydraflow Hydrographs Extension for AutoCAD@) Civil 3D@) 2016 by Autodesk, Inc. v11 Hyd. No. 5 Time to peak cb-4 Hyd. volume Hydrograph type = SCS Runoff Storm frequency = 1 yrs Time interval = 1 min Drainage area = 0.215 ac Basin Slope = 0.0% Tc method = User Total precip. = 2.80 in Storm duration = 24 hrs Q (cfs) Thursday, 05 / 18 / 2017 Peak discharge = 0.202 cfs Time to peak = 11.98 hrs Hyd. volume = 461 cuft Curve number = 70 Hydraulic length = 0 ft Time of conc. (Tc) = 8.00 min Distribution = Type II Shape factor = 484 cb-4 Hyd. No. 5 -- 1 Year Q (cfs) 0 2 4 Hyd No. 5 6 8 10 12 14 16 18 20 22 24 26 Time (hrs) 0.30 7 0.25 0.20 nnn-MMMMMMjLq4MMMM Sol 0 2 4 Hyd No. 5 6 8 10 12 14 16 18 20 22 24 26 Time (hrs) Hydrograph Report Hydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc v11 Hyd. No. 6 Time to peak cb-5 Hyd. volume Hydrograph type = SCS Runoff Storm frequency = 1 yrs Time interval = 1 min Drainage area = 0.168 ac Basin Slope = 0.0% Tc method = User Total precip. = 2.80 in Storm duration = 24 hrs Thursday, 05 / 18 / 2017 Peak discharge = 0.200 cfs Time to peak = 11.98 hrs Hyd. volume = 438 cuft Curve number = 73 Hydraulic length = 0 ft Time of conc. (Tc) = 8.00 min Distribution = Type II Shape factor = 484 cb-5 Q (cfs) Hyd. No. 6 -- 1 Year Q (cfs) 0.50 0.45 - _- --- - - -- - - - 0.40 0.35 0.30 0.25 0.20 0.15 0.10 0.05 0.00 0 2 4 Hyd No. 6 0.50 0.45 0.40 - -- - - - - - - -- - - - - - - - -- 0.35 - - - -- - - -- � 0.30 - - - - - - -- - - - - ----- 0.25 -- - - - - -- - - - -- - - 0.20 - - - - - - - - -- -- - 0.15 0.10 - - - - - - - - - - - -- - - - - -.. - - 0.05 - -- --- - - - - - -- - - 0.00 6 8 10 12 14 16 18 20 22 24 26 Time (hrs) Hydrograph Report Hydraflow Hydrographs Extension for AutoCAD® Civil 3DO 2016 by Autodesk, Inc. v11 Hyd. No. 7 Time to peak cb-6 Hyd. volume Hydrograph type = SCS Runoff Storm frequency = 1 yrs Time interval = 1 min Drainage area = 0.074 ac Basin Slope = 0.0% Tc method = User Total precip. = 2.80 in Storm duration = 24 hrs Q (cfs) 10 Thursday, 05 / 18 / 2017 Peak discharge = 0.210 cfs Time to peak = 11.97 hrs Hyd. volume = 451 cuft Curve number = 89 Hydraulic length = 0 ft Time of cont. (Tc) = 8.00 min Distribution = Type II Shape factor = 484 cb-6 Hyd. No. 7 -- 1 Year Q (cfs) 0 2 4 Hyd No. 7 6 8 10 12 14 16 18 20 22 24 Time (hrs) 0.45 0.40 0.35 0.30 0.20 �V 0.05 ■ J� 0 2 4 Hyd No. 7 6 8 10 12 14 16 18 20 22 24 Time (hrs) 11 Hydrograph Report Hydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc v11 Thursday, 05 / 18 / 2017 Hyd. No. 8 cb-7 Hydrograph type = SCS Runoff Peak discharge = 0.698 cfs Storm frequency = 1 yrs Time to peak = 11.97 hrs Time interval = 1 min Hyd. volume = 1,498 cuft Drainage area = 0.246 ac Curve number = 89 Basin Slope = 0.0% Hydraulic length = 0 ft Tc method = User Time of conc. (Tc) = 8.00 min Total precip. = 2.80 in Distribution = Type II Storm duration = 24 hrs Shape factor = 484 Q (cfs) 1.00 0.90 0.80 0.70 0.60 0.50 0.40 0.30 0.20 0.10 cb-7 Hyd. No. 8 -- 1 Year Q (cfs) 1.00 0.90 0.80 0.70 0.60 0.50 0.40 0.30 0.20 0.10 Lj 6 8 10 12 14 16 18 20 22 24 Time (hrs) 12 Hydr®graph Report Hydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc. v11 Thursday, 05 / 18 / 2017 Hyd. No. 9 cb-8 Hydrograph type = SCS Runoff Peak discharge = 0.379 cfs Storm frequency = 1 yrs Time to peak = 11.98 hrs Time interval = 1 min Hyd. volume = 798 cuft Drainage area = 0.194 ac Curve number = 81 Basin Slope = 0.0% Hydraulic length = 0 ft Tc method = User Time of conc. (Tc) = 8.00 min Total precip. = 2.80 in Distribution = Type II Storm duration = 24 hrs Shape factor = 484 cb-8 Q (cfs) Hyd. No. 9 -- 1 Year Q (cfs) 0.50 0.45 0.40 0.35 0.30 0.25 0.20 0.15 0.10 0.05 0.00 0 2 4 Hyd No. 9 0.50 ---- ---- --- — ------ - ------ - - ----------- - -- -- ----------------_- 045 - --- - - - ---- - --- ---- - --- -- - - - --- - -� 0.40 - - - -- - - - --- -- -- - - - - 0.35 -- - - -- - - -- - -- -- - - --- 0.30 - - -- - -- - - - -- ---- - -- 0.25 - - --- - - - --- - - -- - - --- - - - 0.20 - -- -- -- -- - - 0.15 - - - - - - - - -- -- 0.10 - - - - - - - - - - -- -- --- -- 0.05 Lj- - - - - 0.00 6 8 10 12 14 16 18 20 22 24 26 Time (hrs) Hydrograph Report Hydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc. v11 i Hyd. No. 10 Time to peak basin 9 Hyd. volume Hydrograph type = SCS Runoff Storm frequency = 1 yrs Time interval = 1 min Drainage area = 0.702 ac Basin Slope = 0.0% Tc method = User Total precip. = 2.80 in Storm duration = 24 hrs Q (cfs) 0.10 0.09 0.08 i I 0.07 0.06 0.05 0.04 — 0.03 0.02 ---- —------- - 0.01n nn w"--- - ------ 0 2 4 Hyd No. 10 13 Thursday, 05 / 18 / 2017 Peak discharge = 0.033 cfs Time to peak = 12.05 hrs Hyd. volume = 360 cuft Curve number = 55 Hydraulic length = 0 ft Time of conc. (Tc) = 7.00 min Distribution = Type II Shape factor = 484 basin 9 Hyd. No. 10 -- 1 Year Q (cfs) Hydrograph Report Hydraflow Hydrographs Extension for AutoCADO Civil 3D0 2016 by Autodesk, Inc v11 Hyd. No. 11 Time to peak basin 10 Hyd. volume Hydrograph type = SCS Runoff Storm frequency = 1 yrs Time interval = 1 min Drainage area = 0.210 ac Basin Slope = 0.0% Tc method = User Total precip. = 2.80 in Storm duration = 24 hrs Q (cfs) 0.10 0.09 -_.- --- - - - - - 0.08 0.07 - - - -- -- 0.06 0.05 0.04 0.03 0.02 0.01 Ono 0 2 4 Hyd No. 11 14 Thursday, 05 / 18 / 2017 Peak discharge = 0.009 cfs Time to peak = 12.08 hrs Hyd. volume = 110 cuft Curve number = 55 Hydraulic length = 0 ft Time of conc. (Tc) = 10.00 min Distribution = Type II Shape factor = 484 basin 10 Hyd. No. 11 -- 1 Year Q (cfs) 0.10 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.02 0.01 000 6 8 10 12 14 16 18 20 22 24 26 Time (hrs) 15 Hydrograph Report Hydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc v11 Thursday, 05 / 18 / 2017 Hyd. No. 12 combination hydrograph Hydrograph type = Combine Peak discharge = 1.661 cfs Storm frequency = 1 yrs Time to peak = 11.98 hrs Time interval = 1 min Hyd. volume = 3,843 cuft Inflow hyds. = 2, 3, 4, 5 Contrib. drain. area = 1.132 ac Q (cfs) 2.00 1.00 combination hydrograph Hyd. No. 12 -- 1 Year Q (cfs) 2.00 1.00 000 ' `" ' 0.00 0 2 4 6 8 10 12 14 16 18 20 22 24 26 Hyd No. 12 ® Hyd No. 2 Hyd No. 3 Hyd No 4 Time (hrs) Hyd No. 5 Hydrograph Report Hyd. No. 13 combination hydrograph Hydrograph type = Combine Storm frequency = 1 yrs Time interval = 1 min Inflow hyds. = 6, 7, 8, 9 16 Thursday, 05 / 18 / 2017 Peak discharge = 1.480 cfs Time to peak = 11.97 hrs Hyd. volume = 3,185 cuft Contrib. drain. area = 0.682 ac combination hydrograph Q (cfs) Hyd. No. 13 -- 1 Year Q WS) 2.00 2.00 1.00 1.00 n nn 0.00 0 2 4 6 8 10 12 14 16 18 20 22 24 26 _ Hyd No. 13 Hyd No. 6 Hyd No. 7 Hyd No. 8 Time (hrs) Hyd No. 9 17 Hydrograph Report Hydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc v11 Thursday, 05 / 18 / 2017 Hyd. No. 14 site discharge - pre -detention Hydrograph type = Combine Peak discharge = 3.141 cfs Storm frequency = 1 yrs Time to peak = 11.98 hrs Time interval = 1 min Hyd. volume = 7,028 cuft Inflow hyds. = 12, 13 Contrib. drain. area = 0.000 ac site discharge - pre -detention Q (cfs) Hyd. No. 14 -- 1 Year Q (cfs) 4.00 4.00 3.00 3.00 2.00 2.00 1 00 1.00 0.00 0.00 0 2 4 6 8 10 12 14 16 18 20 22 24 26 Time (hrs) Hyd No. 14 Hyd No. 12 Hyd No. 13 Hydr®graph Report 18 Hydraflow Hydrographs Extension for AutoCAD® Civil 3DB 2016 by Autodesk, Inc v11 Thursday, 05 / 18 12017 Hyd. No. 15 UG Detention Hydrograph type = Reservoir Peak discharge = 0.452 cfs Storm frequency = 1 yrs Time to peak = 12.30 hrs Time interval = 1 min Hyd. volume = 6,687 cuft Inflow hyd. No. = 14 - site discharge - pre-detend6ax. Elevation = 870.60 ft Reservoir name = <New Pond> Max. Storage = 2,749 cuft Storage Indication method used Exfiltration extracted from Outflow. Q (cfs) 4.00 3.00 2.00 1.00 0.00 0 3 Hyd No 15 UG Detention Hyd. No. 15 -- 1 Year 6 9 12 15 18 21 24 Hyd No 14 I—_ Totai storage used = 2,749 cuft Q (cfs) 4.00 3.00 2.00 1.00 0.00 27 Time (hrs) Pond Report 19 Hydraflow Hydrographs Extension for AutoCADO Civil 3D0 2016 by Autodesk, Inc. v11 Thursday, 05 / 18 / 2017 Pond No. 1 - <New Pond> Weir Structures Pond Data UG Chambers -Invert elev. = 869.74 ft, Rise x Span = 2 50 x 4 25 ft, Barrel Len = 90 00 ft, No Barrels = 5, Slope = 0.00%, Headers = Yes Encasement -Invert elev = 869 24 ft, Width = 6.00 ft, Height = 4 00 ft, Voids = 40 00% [B] Stage / Storage Table [D] Rise (in) Stage (ft) Elevation (ft) Contour area (sgft) Incr. Storage (cult) Total storage (cult) 0.00 86924 n/a 0 0 0.40 86964 n/a 490 490 0.80 87004 n/a 879 1,369 1.20 870.44 n/a 999 2,368 1.60 87084 n/a 974 3,342 200 87124 n/a 933 4,275 240 87164 n/a 870 5,145 280 87204 n/a 768 5,913 320 872.44 n/a 558 6,471 360 87284 n/a 490 6,961 4.00 873.24 n/a 490 7,451 Culvert / Orifice Structures Weir Structures [A] [B] [C] [PrfRsr] [A] [B] [C] [D] Rise (in) = 400 6.00 6.00 0.00 Crest Len (ft) = 600 Inactive 0.00 0.00 Span (in) = 4.00 6.00 6.00 000 Crest EI. (ft) = 87224 87266 0.00 0.00 No. Barrels = 1 1 1 0 Weir Coeff. = 333 333 333 3.33 Invert EI. (ft) = 869.24 87070 871.18 000 Weir Type = Rect 15 degV - -- Length (ft) = 0.33 0.33 0.33 0.00 Multi -Stage = No No No No Slope (%) = 1 00 1 00 1.00 n/a N -Value = .013 .013 .013 n/a Orifice Coeff. = 0.60 0.60 060 060 Exfil.(in/hr) = 0.020 (by Wet area) Multi -Stage = n/a No No No TW Elev. (ft) = 86944 Note Culvert/Onfice outflows are analyzed under inlet (ic) and outlet (cc) control Weir risers checked for onfice conditions (ic) and submergence (s) Stage / Storage / Discharge Table Stage Storage Elevation Clv A Clv B Civ C PrfRsr Wr A Wr B Wr C Wr D Exfil User Total ft cuft ft cfs cfs cfs cfs cfs cfs cfs cfs cfs cfs cfs 000 0 869.24 000 0.00 0.00 - 0.00 000 --- - 0 000 -- 0.000 - 040 490 86964 0 15 oc 0.00 0.00 --- 0.00 0.00 --- --- 0 002 --- 0 151 080 1,369 87004 0.33 is 0.00 000 -- 0.00 0.00 - - 0 002 -- 0 327 120 2,368 87044 0.42 ic 0.00 000 --- 000 0.00 --- --- 0.002 --- 0.422 1 60 3,342 87084 0.50 is 0.02 oc 000 --- 0.00 0.00 --- --- 0.002 --- 0 516 2.00 4,275 87124 0.56 is 0.27 oc 0 00 cc --- 0.00 0.00 -- -- 0 002 --- 0.836 2.40 5,145 871.64 0.62 is 0.79 is 0.07 cc --- 000 0.00 --- --- 0.002 -- 1.482 280 5,913 872.04 0.68 ic 0.99 ic 0 74 is -- 000 0.00 - --- 0.003 - 2 405 3.20 6,471 872.44 0.73 ic 1 15 ic 0.95 is --- 1 79 0.00 -- -- 0 003 - 4.622 3.60 6,961 872.84 0 77 is 1 30 is 1 12 is --- 929 0.00 --- --- 0 003 --- 12.49 4.00 7,451 873.24 0 82 is 143 is 127 is --- 19.98 0.00 --- --- 0.003 --- 23.50 20 Hydrograph Report Hydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc v11 Thursday, 05 / 18 / 2017 Hyd. No. 16 Total post -developed discharge Hydrograph type = Combine Peak discharge = 0.483 cfs Storm frequency = 1 yrs Time to peak = 12.12 hrs Time interval = 1 min Hyd. volume = 7,157 cuft Inflow hyds. = 10, 11, 15 Contrib. drain. area = 0.912 ac Q (cfs 0.50 0.45 0.40 0.35 0.30 0.25 0.20 0.15 0.10 0.05 Total post -developed discharge Hyd. No. 16 -- 1 Year Q (cfs) 0.50 0.45 0.40 0.35 0.30 0.25 0.20 0.15 0.10 0.05 0.00 0.00 0 3 6 9 12 15 18 21 24 27 Time (hrs) Hyd No 16 Hyd No. 10 Hyd No. 11 Hyd No. 15 21 Hydrograph Summary Report Hydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc v11 Hyd. No. Hydrograph type (origin) Peak flow (cfs) Time interval (min) Time to Peak (min) Hyd. volume (cuft) Inflow hyd(s) Maximum elevation (ft) Total strge used (cuft) Hydrograph Description 1 SCS Runoff 1 905 1 723 5,876 ------ ------ ------ pre -developed 2 SCS Runoff 1 572 1 718 3,332 ------ ------ ------ cb-1 3 SCS Runoff 0 133 1 726 550 ------ ------ ------ cb-2 4 SCS Runoff 0 357 1 718 804 ------ ------ ------ cb-3 5 SCS Runoff 0 328 1 719 711 ------ ----- ------ cb-4 6 SCS Runoff 0 307 1 719 653 ------ ------ ------ cb-5 7 SCS Runoff 0 271 1 718 589 ------ ------ — --- cb-6 8 SCS Runoff 0 901 1 718 1,956 ------ ------ ------ cb-7 9 SCS Runoff 0 524 1 719 1,107 ------ ------ ------ cb-8 10 SCS Runoff 0 196 1 721 761 ------ ------ ------ basin 9 11 SCS Runoff 0 053 1 722 233 ------ ------ ------ basin 10 12 Combine 2 322 1 719 5,397 2, 3, 4, ------ ------ combination hydrograph 5, 13 Combine 1 998 1 718 4,306 6, 7, 8, ------ ------ combination hydrograph 9, 14 Combine 4 312 1 719 9,703 12,13 ------ ------ site discharge - pre -detention 15 Reservoir 0 599 1 739 9,354 14 871 08 3,904 UG Detention 16 Combine 0 760 1 723 10,348 10, 11,15 ------ ---- Total post -developed discharge alt10.gpw Return Period: 2 Year Thursday, 05 / 18 / 2017 Hydrograph Report Hydraflow Hydrographs Extension for AutoCADO Civil 3D0 2016 by Autodesk, Inc. v11 Hyd. No. 1 Time to peak pre -developed Hyd. volume Hydrograph type = SCS Runoff Storm frequency = 2 yrs Time interval = 1 min Drainage area = 2.720 ac Basin Slope = 5.0% Tc method = TR55 Total precip. = 3.38 in Storm duration = 24 hrs * Composite (Area/CN) = [(0 080 x 98) + (0 038 x 98) + (2 606 x 61)] / 2 720 22 Thursday, 05 / 18 / 2017 Peak discharge = 1.905 cfs Time to peak = 12.05 hrs Hyd. volume = 5,876 cuft Curve number = 63* Hydraulic length = 75 ft Time of conc. (Tc) = 12.60 min Distribution = Type II Shape factor = 486 pre -developed Q (cfs) Hyd. No. 1 -- 2 Year 2.00 1.00 0.00 0 2 4 6 Hyd No. 1 Q (cfs) 2.00 1.00 I I . I 1 I I I I I` i 0.00 8 10 12 14 16 18 20 22 24 26 Time (hrs) Hydrograph Report Hydraflow Hydrographs Extension for AutoCAD@) Civil 3DO 2016 by Autodesk, Inc v11 Hyd. No. 2 Time to peak cb-1 Hyd. volume Hydrograph type = SCS Runoff Storm frequency = 2 yrs Time interval = 1 min Drainage area = 0.535 ac Basin Slope = 0.0% Tc method = User Total precip. = 3.38 in Storm duration = 24 hrs Q (cfs) 2.00 1.00 0.00 ' ' 0 2 4 Hyd No. 2 23 Thursday, 05 / 18 / 2017 Peak discharge = 1.572 cfs Time to peak = 11.97 hrs Hyd. volume = 3,332 cuft Curve number = 83 Hydraulic length = 0 ft Time of conc. (Tc) = 8.00 min Distribution = Type II Shape factor = 484 cb-1 Hyd. No. 2 -- 2 Year Q (cfs) 2.00 1.00 ' ' ' ' 0.00 6 8 10 12 14 16 18 20 22 24 26 Time (hrs) Hydrograph Report Hydraflow Hydrographs Extension for AutoCAD® Civil 3D@) 2016 by Autodesk, Inc v11 Hyd. No. 3 Time to peak cb-2 Hyd. volume Hydrograph type = SCS Runoff Storm frequency = 2 yrs Time interval = 1 min Drainage area = 0.295 ac Basin Slope = 0.0% Tc method = User Total precip. = 3.38 in Storm duration, - = 24 hrs Q (Cfs) 0.50 0.45 0.40 0.35 0.30 0.25 0.20 0.15 0.10 0.05 n nn 0 2 4 - Hyd No. 3 24 Thursday, 05 / 18 / 2017 Peak discharge = 0.133 cfs Time to peak = 12.10 hrs Hyd. volume = 550 cuft Curve number = 61 Hydraulic length = 0 ft Time of conc. (Tc) = 18.00 min Distribution = Type 11 Shape factor = 484 cb-2 Hyd. No. 3 -- 2 Year Q (Cfs) 25 Hydrograph Report Hydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc v11 Thursday, 05 / 18 / 2017 Hyd. No. 4 cb-3 Hydrograph type = SCS Runoff Peak discharge = 0.357 cfs Storm frequency = 2 yrs Time to peak = 11.97 hrs Time interval = 1 min Hyd. volume = 804 cuft Drainage area = 0.087 ac Curve number = 93 Basin Slope = 0.0% Hydraulic length = 0 ft Tc method = User Time of conc. (Tc) = 8.00 min Total precip. = 3.38 in Distribution = Type II Storm duration = 24 hrs Shape factor = 484 Q (cfs) 0.50 0.45 0.40 0.35 0.30 0.25 0.20 0.15 0.10 0.05 0.00 ' 0.0 2.0 Hyd No. 4 4.0 6.0 8.0 cb-3 Hyd. No. 4 -- 2 Year Q (cfs) 0.50 0.45 0.40 0.35 0.30 0.25 0.20 0.15 0.10 0.05 T 0.00 10.0 12.0 14.0 16.0 18.0 20.0 22.0 Time (hrs) 26 Hydrograph Report Hydraflow Hydrographs Extension for AutoCAD® Civil 3DO 2016 by Autodesk, Inc. v11 Thursday, 05 / 18 / 2017 Hyd. No. 5 cb-4 Hydrograph type = SCS Runoff Peak discharge = 0.328 cfs Storm frequency = 2 yrs Time to peak = 11.98 hrs Time interval = I min Hyd. volume - 711 cuft Drainage area = 0.215 ac Curve number - 70 Basin Slope = 0.0% Hydraulic length = 0 ft Tc method = User Time of conc. (Tc) = 8.00 min Total precip. = 3.38 in Distribution = Type 11 Storm duration = 24 hrs Shape factor = 484 Q (Cfs) 0.50 0.45 0.40 0.35 0.30 0.25 0.20 0.15 0.10 0.05 n no - 0 2 4 - Hyd No. 5 cb-4 Hyd. No. 5 -- 2 Year Q (cfS) 27 Hydrograph Report Hydraflow Hydrographs Extension for AutoCADO Civil 3DO 2016 by Autodesk, Inc v11 Thursday, 05 / 18 / 2017 Hyd. No. 6 cb-5 Hydrograph type = SCS Runoff Peak discharge = 0.307 cfs Storm frequency = 2 yrs Time to peak = 11.98 hrs Time interval = 1 min Hyd. volume = 653 cuft Drainage area = 0.168 ac Curve number = 73 Basin Slope = 0.0% Hydraulic length = 0 ft Tc method = User Time of conc. (Tc) = 8.00 min Total precip. = 3.38 in Distribution = Type II Storm duration = 24 hrs Shape factor = 484 Q (cfs) 0.50 0.45 0.40 - ---- -- 0.35 0.30 0.25 0.20 0.15 0.10 0.05 0 00 0 2 4 Hyd No. 6 cb-5 Hyd. No. 6 -- 2 Year Q (cfs) 0.50 - -- - --- -- -- -- - - - -- 0.45 - -- - - - - - - -- - -- - - - -- -- 0.40 - - - -- - - - - --- - - - 0.35 0.30 - -- -- -- - -- -- -- - - - -- -- 0.25 - - -- - - - -- - - - -- - 0.20 - - - - - - - -- - 0.15 - - - - - -- - - 0.10 - - -- --- - - - - - - 0.05 -- - - - -- - - -- 0.00 6 8 10 12 14 16 18 20 22 24 26 Time (hrs) Q (cfs) 0.50 0.45 0.40 0.35 0.30 0.25 0.20 0.15 0.10 0.05 0.00 0 2 4 Hyd No. 7 cb-6 Hyd. No. 7 -- 2 Year 6 8 10 12 14 16 18 20 22 Q (cfs) 0.50 0.45 0.40 0.35 0.30 0.25 020 0.15 0.10 0.05 0.00 24 Time (hrs) 28 Hydr®graph Report Hydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc v11 Thursday, 05 / 18 / 2017 Hyd. No. 7 cb-6 Hydrograph type = SCS Runoff Peak discharge = 0.271 cfs Storm frequency = 2 yrs Time to peak = 11.97 hrs Time interval = 1 min Hyd. volume = 589 cuft Drainage area = 0.074 ac Curve number = 89 Basin Slope = 0.0% Hydraulic length = 0 ft Tc method = User Time of conc. (Tc) = 8.00 min Total precip. = 3.38 in Distribution = Type II Storm duration = 24 hrs Shape factor = 484 Q (cfs) 0.50 0.45 0.40 0.35 0.30 0.25 0.20 0.15 0.10 0.05 0.00 0 2 4 Hyd No. 7 cb-6 Hyd. No. 7 -- 2 Year 6 8 10 12 14 16 18 20 22 Q (cfs) 0.50 0.45 0.40 0.35 0.30 0.25 020 0.15 0.10 0.05 0.00 24 Time (hrs) Hydrograph Report Hydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc v11 Hyd. No. 8 Time to peak cb-7 Hyd. volume Hydrograph type = SCS Runoff Storm frequency = 2 yrs Time interval = 1 min Drainage area = 0.246 ac Basin Slope = 0.0% Tc method = User Total precip. = 3.38 in Storm duration = 24 hrs Q (cfs) 29 Thursday, 05 / 18 / 2017 Peak discharge = 0.901 cfs Time to peak = 11.97 hrs Hyd. volume = 1,956 cuft Curve number = 89 Hydraulic length = 0 ft Time of conc. (Tc) = 8.00 min Distribution = Type II Shape factor = 484 cb-7 Hyd. No. 8 -- 2 Year Q (cfs) i .uu 1.00 0.90 0.90 -- - -- --- -- - -- - - - - - -- - - - - -- -- - -- - - - - - - - - - - - - - - - -- - - - - — - -- - - - - - 0.80 0.80 - -- - - - - - - - --- - - - - - - - - - - 0.70 0.70 - --- - - - - - --- - - - - - -- - - - - - - - - -- - -- -- -- - - 0.60 0.60 -- - - - - ----- -- - - -- -- --- - 0.50 0.50 - ---- - - - - - -- -- - - - 040 0.40 0.30 0.30 - - -- - - - - - - - - - - - - - - 0.20 0.20 0.10 0.10 n nn -- ----- - - - - ----- --- -- -- - - 0.00 0 2 4 Hyd No. 8 6 8 10 12 14 16 18 20 22 24 Time (hrs) 30 Hydr®graph Report Hydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc v11 Thursday, 05 / 18 / 2017 Hyd. No. 9 cb-8 - ---- - - - - v Hydrograph type = SCS Runoff Peak discharge = 0.524 cfs Storm frequency = 2 yrs Time to peak = 11.98 hrs Time interval = 1 min Hyd. volume = 1,107 cuft Drainage area = 0.194 ac Curve number = 81 Basin Slope = 0.0% Hydraulic length = Oft Tc method = User Time of conc. (Tc) = 8.00 min Total precip. = 3.38 in Distribution = Type II Storm duration = 24 hrs Shape factor = 484 Q (cfs) cb-8 Hyd. No. 9 -- 2 Year Q (cfs) 1.00 - - ---- - - - - v - - - !.Uv 0.90 0.90 -- - — - - - -- --- - -- -- - - - -- -- - - - - - - - - - ---- - - 0.80 0.80 - - - - - - - - - -- - - - --- - -- --- - - - - - - -- - 0.70 0.70 0.60 0.60 - - - 0.50 0.50 - - - - - - - - - - - -- - - - - - -- - - 0.40 0.40 - ---- - - - - - - - -- - - - - -- - -- -- - - - - - - - - - 0.30 0.30 - - -- - - - - -- - ----- - - - - - -- --- - -- 0.20 0.20 -- - - - - - - - � - - - - - - - - ---- - 0.10 0.10 000 - - - -- - nnn 0 2 4 Hyd No. 9 6 8 10 12 14 16 18 20 22 24 26 Time (hrs) 31 Hydrograph Report Hydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc v11 Thursday, 05 / 18 / 2017 Hyd. No. 10 basin 9 Hydrograph type = SCS Runoff Peak discharge = 0.196 cfs Storm frequency = 2 yrs Time to peak = 12.02 hrs Time interval = 1 min Hyd. volume = 761 cuft Drainage area = 0.702 ac Curve number = 55 Basin Slope = 0.0% Hydraulic length = Oft Tc method = User Time of conc. (Tc) = 7.00 min Total precip. = 3.38 in Distribution = Type II Storm duration = 24 hrs Shape factor = 484 Q (cfs) basin 9 Hyd. No. 10 -- 2 Year Q (cfs) 0.50 �.av 0.45 0.45 0.40 0.40 0.35 0.35 -- - -- - - - --- -- --- - - - - - - - — - -- -- -- -- - - - - - -------- - 0.30 0.30 025 0.25 ---- - -- - --- - - - - - - - --- - - - - - -- - - — 0.20 0.20 - - - - - - - - - - - - - - 0.15 0.15 - - - - - - -- - -- 010 0.10 - - - 0.05 0.05 0 00 - - - n nn 0 2 4 Hyd No. 10 6 8 10 12 14 16 18 20 22 24 26 Time (hrs) 32 Hydrograph Report Hydraflow Hydrographs Extension for AutoCAD® Civil 3DO 2016 by Autodesk, Inc v11 Thursday, 05 118 / 2017 Hyd. No. 11 basin 10 Hydrograph type = SCS Runoff Peak discharge = 0.053 cfs Storm frequency = 2 yrs Time to peak = 12.03 hrs Time interval = 1 min Hyd. volume = 233 cuft Drainage area = 0.210 ac Curve number = 55 Basin Slope = 0.0% Hydraulic length = 0 ft Tc method = User Time of cone. (Tc) = 10.00 min Total precip. = 3.38 in Distribution = Type II Storm duration = 24 hrs Shape factor = 484 Q (cfs) 0.10 0.09 0.08 � 0.07 0.06 - - 0.05 0.04 0.03 0.02 0.01 000 0 2 4 Hyd No. 11 basin 10 Hyd. No. 11 -- 2 Year Q (cfs) 33 I Hydrograph Report Hydraflow Hydrographs Extension for AutoCAD® Civil 3D@ 2016 by Autodesk, Inc v11 Thursday, 05 / 18 / 2017 Hyd. No. 12 combination hydrograph Hydrograph type = Combine Peak discharge = 2.322 cfs; Storm frequency = 2 yrs Time to peak = 11.98 hrs Time interval = 1 min Hyd. volume = 5,397 cuft Inflow hyds. = 2, 3, 4, 5 Contrib. drain. area = 1.132 ac Q (Cfs) 3.00 2.00 1.00 FAVAT111 combination hydrograph Hyd. No. 12 2 Year 0 2 4 6 8 10 12 14 16 - Hyd No. 12 - Hyd No. 2 - Hyd No. 3 - Hyd No. 5 18 20 22 24 - Hyd No. 4 Q (efs) 3.00 2.00 1.00 26 Time (hrs) 34 Hydrograph Report Hydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc v11 Thursday, 05 / 18 / 2017 I Hyd. No. 13 combination hydrograph Hydrograph type = Combine Peak discharge = 1.998 cfs Storm frequency = 2 yrs Time to peak = 11.97 hrs Time interval = 1 min Hyd. volume = 4,306 cuft Inflow hyds. = 6, 7, 8, 9 Contrib. drain. area = 0.682 ac Q (cfs 2.00 1.00 f YATi1 combination hydrograph Hyd. No. 13 -- 2 Year 0 2 4 6 8 10 12 14 16 Hyd No. 13 Hyd No. 6 Hyd No. 7 Hyd No. 9 18 20 22 Hyd No. 8 24 Q (cfs) 2.00 1.00 26 Time (hrs) Hydrograph Report Hydraflow Hydrographs Extension for AutoCAIDO Civil 3D0 2016 by Autodesk, Inc. v11 Hyd. No. 14 site discharge - pre -detention Hydrograph type = Combine Storm frequency = 2 yrs Time interval = 1 min Inflow hyds. = 12, 13 Q (Cfs 5.00 4.00 3.00 2.00 1.00 35 Thursday, 05 / 18 / 2017 Peak discharge = 4.312 cfs Time to peak = 11.98 hrs Hyd. volume = 9,703 cuft Contrib. drain. area = 0.000 ac site discharge - pre -detention Hyd. No. 14 2 Year 000 0 2 4 - Hyd No. 14 Q (Cfs) 5.00 4.00 3.00 2.00 1.00 ff WIT11 6 8 10 12 14 16 18 20 22 24 26 - Time (hrs) Hyd No. 12 - Hyd No. 13 36 Hydrograph Report Hydraflow Hydrographs Extension for AUtoCADE) Civil 3D® 2016 by Autodesk, Inc. v11 Thursday, 05 / 18 / 2017 Hyd. No. 15 UG Detention Hydrograph type = Reservoir Peak discharge = 0.599 cfs Storm frequency = 2 yrs Time to peak = 12.32 hrs Time interval = 1 min Hyd. volume = 9,354 cuft Inflow hyd. No. = 14 - site discharge - pre-detentidax. Elevation = 871.08 ft Reservoir name = <New Pond> Max. Storage = 3,904 cuft Storage Indication method used EAltration extracted from Outflow UG Detention Q (cfs) Hyd. No. 15 -- 2 Year Q (cfs) 5.00 5.00 4.00 4.00 3.00 3.00 2.00 2.00 1.00 1.00 0.00 - 0.00 0 3 6 9 12 15 18 21 24 27 Time (hrs) Hyd No. 15 Hyd No. 14 L_� Total storage used = 3,904 cult Hydrograph Report Hydraflow Hydrographs Extension for AutoCAD® Civil 3D@) 2016 by Autodesk, Inc v11 Hyd. No. 16 Total post -developed discharge Hydrograph type = Combine Storm frequency = 2 yrs Time interval = 1 min Inflow hyds. = 10, 11, 15 37 Thursday, 05 / 18 / 2017 Peak discharge = 0.760 cfs Time to peak = 12.05 hrs Hyd. volume = 10,348 cuft Contrib. drain. area = 0.912 ac ■ l W11 h \L14 =_tm 7 IM M�Rqm 9.1 Hydrograph Summary Report HydraFlow Hydrographs Extension for AutoCADO Civil 3D® 2016 by Autodesk, Inc. v11 Hyd. No. Hydrograph type (origin) Peak flow (cfs) Time interval (min) Time to Peak (min) Hyd. volume (cuft) Inflow hyd(s) Maximum elevation (ft) Total strge used (cuft) Hydrograph Description 1 SCS Runoff 5 446 1 722 14,356 ------ ------ ------ pre -developed 2 SCS Runoff 2 744 1 718 5,912 ----- ------ ------ cb-1 3 SCS Runoff 0438 1 725 1,411 ------ ------ ------ cb-2 4 SCS Runoff 0 547 1 718 1,271 ------ ------ ------ cb-3 5 SCS Runoff 0 718 1 719 1,515 ------ ------ ---- cb-4 6 SCS Runoff 0 629 1 719 1,327 ------ ------ ------ cb-5 7 SCS Runoff 0 436 1 718 974 ------ ------ ------ cb-6 8 SCS Runoff 1 449 1 718 3,235 ------ ------ ------ cb-7 9 SCS Runoff 0.942 1 718 2,015 ------ ------ ------ cb-8 10 SCS Runoff 1.001 1 719 2,361 ------ ------ ------ basin 9 11 SCS Runoff 0 280 1 720 723 ------ ------ ------ basin 10 12 Combine 4 297 1 719 10,109 2, 3, 4, ------ ------ combination hydrograph 5, 13 Combine 3 455 1 718 7,551 6, 7, 8, ------ — -- combination hydrograph 9, 14 Combine 7 748 1 718 17,660 12,13 ------ ------ site discharge - pre -detention 15 Reservoir 3047 1 726 17,296 14 87231 6,285 UG Detention 16 Combine 3 705 1 725 20,379 10, 11,15 ------ ------ Total post -developed discharge aIt10 gpw Return Period: 10 Year Thursday, 05 / 18 / 2017 39 Hydrograph Report Hydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc. v11 Thursday, 05 / 18 / 2017 Hyd. No. 1 pre -developed Hydrograph type = SCS Runoff Peak discharge = 5.446 cfs Storm frequency = 10 yrs Time to peak = 12.03 hrs Time interval = 1 min Hyd. volume = 14,356 tuft Drainage area = 2.720 ac Curve number = 63* Basin Slope = 5.0% Hydraulic length = 75 ft Tc method = TR55 Time of conc. (Tc) = 12.60 min Total precip. = 4.94 in Distribution = Type II Storm duration = 24 hrs Shape factor = 486 Composite (Area/CN) = [(0 080 x 98) + (0.038 x 98) + (2 606 x 61)] / 2 720 Q (cfs) 6.00 5.00 �i 4.00 3.00 'I 2.00 1.00 pre -developed Hyd. No. 1 -- 10 Year Q (cfs) 6.00 5.00 4.00 3.00 2.00 1.00 0.00 0 2 4 6 8 10 12 14 16 18 20 22 24 26 Hyd No. 1 Time (hrs) Hydrograph Report 40 Hydraflow Hydrographs Extension for AutoCAD® Civil 3DO 2016 by Autodesk, Inc. v11 Hyd. No. 2 cb-1 Hydrograph type = SCS Runoff Peak discharge Storm frequency = 10 yrs Time to peak Time interval = 1 min Hyd. volume Drainage area = 0.535 ac Curve number Basin Slope = 0.0% Hydraulic length Tc method = User Time of conc. (Tc) Total precip. = 4.94 in Distribution Storm duration = 24 hrs Shape factor Thursday, 05 / 18 / 2017 = 2.744 cfs = 11.97 hrs = 5,912 cuft = 83 = 0 ft = 8.00 min = Type II = 484 Q (cfs) cb-1 Hyd. No. 2 -- 10 Year Q (cfs) 300 3.00 i 2.00 2.00 1.00 1.00 0.00 0.00 0 2 4 6 8 10 12 14 16 18 20 22 24 Hyd No. 2 Time (hrs) 41 Hydrograph Report Hydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc v11 Thursday, 05 / 18 / 2017 Hyd. No. 3 cb-2 Hydrograph type = SCS Runoff Peak discharge = 0.438 cfs Storm frequency = 10 yrs Time to peak = 12.08 hrs Time interval = 1 min Hyd. volume = 1,411 cuft Drainage area = 0.295 ac Curve number = 61 Basin Slope = 0.0% Hydraulic length = 0 ft Tc method = User Time of conc. (Tc) = 18.00 min Total precip. = 4.94 in Distribution = Type II Storm duration = 24 hrs Shape factor = 484 cb-2 Q (cfs) Hyd. No. 3 -- 10 Year Q (cfs) 0.50 0.45 -- --- --- ---- 0.40 0.35 0.30 0.25 0.20 0.15 0.10 0.05 0.00 0 2 4 Hyd No. 3 0.50 - - - ----- ---- - -- -- --- - --- -- --- - - - -- 0.45 --- - -- - - - - - - --- - --- - - - - - -- 0.40 - - - - - - - - -- - - - 0.35 --- - --- - --- ----- - - - -- --- - - -- 0.30 - - -- - - - - --- - - 0.25 - - - - - - --- - - - - - 0.20 - - - - - - -- 0.15 0.10 0.05 0.00 6 8 10 12 14 16 18 20 22 24 26 Time (hrs) 42 Hydr®graph Report Hydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc v11 Thursday, 05 / 18 / 2017 Hyd. No. 4 cb-3 0.90 Hydrograph type = SCS Runoff Peak discharge = 0.547 cfs Storm frequency = 10 yrs Time to peak = 11.97 hrs Time interval = 1 min Hyd. volume = 1,271 cuft Drainage area = 0.087 ac Curve number = 93 Basin Slope = 0.0% Hydraulic length = 0 ft Tc method = User Time of conc. (Tc) = 8.00 min Total precip. = 4.94 in Distribution = Type II Storm duration = 24 hrs Shape factor = 484 Q (cfs) cb-3 Hyd No. 4 -- 10 Year Q (cfs) 1 00 1.00 0.90 0.90 0.80 0.80 --- -- -- -- - - - -- - - - - -- 0.70 0.70 - --- - - - - - - - - - - -- - - -- - - - - - - - - - -- - - - - - --- 0.60 0.60 - - - - - -- --- - - - - -- -- - --- - 0.50 050 - 0.40 0.40 030 0.30 - - - - - -- - - - - - - - - - - 020 0.20 010 0.10 000 - - - - -- - ----- -- --- -- - -- - ---- 000 0.0 2.0 Hyd No. 4 4.0 6.0 8.0 10.0 12.0 14.0 16.0 18.0 20.0 Time (hrs) 43 Hydrograph Report Hydraflow Hydrographs Extension for AutoCADO Civil 3DO 2016 by Autodesk, Inc v11 Thursday, 05 / 18 / 2017 Hyd. No. 5 cb-4 Hydrograph type = SCS Runoff Peak discharge = 0.718 cfs Storm frequency = 10 yrs Time to peak = 11.98 hrs Time interval = 1 min Hyd. volume = 1,515 cuft Drainage area = 0.215 ac Curve number = 70 Basin Slope = 0.0% Hydraulic length = 0 ft Tc method = User Time of conc. (Tc) = 8.00 min Total precip. = 4.94 in Distribution = Type II Storm duration = 24 hrs Shape factor = 484 cb-4 Q (cfs) Hyd. No. 5 -- 10 Year Q (cfs) 1.00 0.90 ' --- - - -- - - 0.80 - 0.70 0.60 0.50 0.40 0.30 0.20 0.10 0.00 0 2 4 Hyd No. 5 1.00 --- - -- -- - ----- -- - - 0.90 080 - - - - - - - - - -- - - - - - - 0.70 - - - -- -- - -- ----- - ---- 0.60 -- - - - - - - - - - -- -- - - - -- - - - 0.50 - - - - - - - - - 0.40 0.30 - 0.20 0.10 - - - - - --- -- - - - - - - -- - - - 0.00 6 8 10 12 14 16 18 20 22 24 26 Time (hrs) Hydrograph Report Hydraflow Hydrographs Extension for AutoCAD@ Civil 3DO 2016 by Autodesk, Inc v11 Hyd. No. 6 Time to peak cb-5 Hyd. volume Hydrograph type = SCS Runoff Storm frequency = 10 yrs Time interval = 1 min Drainage area = 0.168 ac Basin Slope = 0.0% Tc method = User Total precip. = 4.94 in Storm duration = 24 hrs 44 Thursday, 05 / 18 / 2017 Peak discharge = 0.629 cfs Time to peak = 11.98 hrs Hyd. volume = 1,327 cuft Curve number = 73 Hydraulic length = 0 ft Time of conc. (Tc) = 8.00 min Distribution = Type II Shape factor = 484 cb-5 Hyd. No. 6 -- 10 Year Q (cfs) 1.00 i .uu 0.90 0.80 - 0.90 0.80 0.70 0.70 0.60 -- -- - - - - - - - - - - - - - -- - 0.60 0.50 0.40 0.50 040 0.30 0.30 0.20 0.20 0.10 000 -- -- - -- - -- --- - - - 0.10 nnn 0 2 4 Hyd No. 6 6 8 10 12 14 16 18 20 22 24 26 Time (hrs) Hydrograph Report Hydraflow Hydrographs Extension for AutoCAD® Civil 3DO 2016 by Autodesk, Inc. v11 Hyd. No. 7 cb-6 Hydrograph type = SCS Runoff Storm frequency = 10 yrs Time interval = 1 min Drainage area = 0.074 ac Basin Slope = 0.0% Tc method = User Total precip. = 4.94 in Storm duration = 24 hrs Q (cfs 0.50 0.45 0.40 0.35 0.30 0.25 0.20 0.15 0.10 Peak discharge Time to peak Hyd. volume Curve number Hydraulic length Time of conc. (Tc) Distribution Shape factor 45 Thursday, 05 / 18 / 2017 = 0.436 cfs = 11.97 hrs = 974 cult = 89 = Oft = 8.00 min = Type II = 484 Q (cfs) 0.50 0.45 0.40 0.35 0.30 0.25 0.20 0.15 0.10 0.05 WAVIT11 6.0 8.0 10.0 12.0 14.0 16.0 18.0 20.0 22.0 Time (hrs) 46 Hydrograph Report Hydraflow Hydrographs Extension for AutoCADO Civil 31)0 2016 by Autodesk, Inc v11 Thursday, 051 18 / 2017 Hyd. No. 8 cb-7 Hydrograph type = SCS Runoff Peak discharge = 1.449 cfs Storm frequency = 10 yrs Time to peak = 11.97 hrs Time interval = 1 min Hyd. volume = 3,235 cuft - Drainage area = 0.246 ac Curve number = 89 Basin Slope = 0.0% Hydraulic length = 0 ft Tc method = User Time of conc. (Tc) = 8.00 min Total precip. = 4.94 in Distribution = Type II Storm duration = 24 hrs Shape factor = 484 cb-7 Q (cfs) Hyd. No. 8 -- 10 Year Q (cfs) 2.00 2.00 1.00 1.00 I� i 0.00 0.00 0.0 2.0 4.0 6.0 8.0 10.0 12.0 14.0 16.0 18.0 20.0 22.0 - Hyd No. 8 Time (hrs) Hydrograph Report Hydraflow Hydrographs Extension for AutoCAD® Civil 3DO 2016 by Autodesk, Inc v11 Hyd. No. 9 Time to peak cb-8 Hyd. volume Hydrograph type = SCS Runoff Storm frequency = 10 yrs Time interval = 1 min Drainage area = 0.194 ac Basin Slope = 0.0% Tc method = User Total precip. = 4.94 in Storm duration = 24 hrs Q (cfs) 1.00 0.90 ----_- ------ - 0.80 ------- -- -- - 0.70 0.60 - 0.50 0.40 0.30 0.20 0.10 0 00 0 2 4 Hyd No. 9 47 Thursday, 05 / 18 / 2017 Peak discharge = 0.942 cfs Time to peak = 11.97 hrs Hyd. volume = 2,015 cuft Curve number = 81 Hydraulic length = 0 ft Time of conc. (Tc) = 8.00 min Distribution = Type II Shape factor = 484 cb-8 Hyd. No. 9 -- 10 Year Q (cfs) 1.00 -- - - -- - - - - - ------ 0.90 - - - - - -- - -- - - - - - -- -- - 0.80 - - - - - -- - - -- 0.70 - - - - - -- - - -- - - 0.60 - -- - - - - - -- - - 0.50 0.40 0.30 0.20 0.10 - - - - - - - — - --- - 0.00 6 8 10 12 14 16 18 20 22 24 Time (hrs) 48 Hydrograph Report Hydraflow Hydrographs Extension for AutoCADO Civil 3D0 2016 by Autodesk, Inc v11 Thursday, 05 / 18 / 2017 Hyd. No. 10 basin 9 Hydrograph type = SCS Runoff Peak discharge = 1.001 cfs Storm frequency = 10 yrs Time to peak = 11.98 hrs Time interval = 1 min Hyd. volume = 2,361 cuft Drainage area = 0.702 ac Curve number = 55 Basin Slope = 0.0% Hydraulic length = 0 ft Tc method = User Time of conc. (Tc) = 7.00 min Total precip. = 4.94 in Distribution = Type II Storm duration = 24 hrs Shape factor = 484 Q (cfs) 2.00 1.00 basin 9 Hyd. No. 10 -- 10 Year Q (cfs) 2.00 1.00 0.00 0.00 0 2 4 6 8 10 12 14 16 18 20 22 24 26 Time (hrs) Hyd No. 10 49 Hydrograph Report Hydraflow Hydrographs Extension for AutoCADO Civil 31D9 2016 by Autodesk, Inc v11 Thursday, 05 / 18 / 2017 Hyd. No. 11 basin 10 Hydrograph type = SCS Runoff Peak discharge = 0.280 cfs Storm frequency = 10 yrs Time to peak = 12.00 hrs Time interval = 1 min Hyd. volume = 723 cuft Drainage area = 0.210 ac Curve number = 55 Basin Slope = 0.0% Hydraulic length = 0 ft Tc method = User Time of conc. (Tc) = 10.00 min Total precip. = 4.94 in Distribution = Type II Storm duration = 24 hrs Shape factor = 484 Q (cfs) 0.50 0.45 - 0.40 0.35 0.30 - -- -- - - - - 0.25 0.20 4 - 0.15 0.10 0.05 0 00 0 2 4 Hyd No 11 basin 10 Hyd. No. 11 -- 10 Year Q (cfs) 0.50 - - - - --- - - - -- --- -- - - - - - --- - --- -- - -- -- ---- ----- - --- - 0.45 - - - - - - --- - - 0.40 - - - - - -- - - - - 0.35 - - ---- - - - - ---------- - -- - - - - - - 0.30 025 - --- -- = - - - - - -- - -- - - 0.20 - - - - - - - - 0.15 - - - ---- 0.10 - - - - -- - - - - � 0.05 - - - - -- - - - - -- --- 0.00 6 8 10 12 14 16 18 20 22 24 26 Time (hrs) 50 Hydrograph Report HydraFlow Hydrographs Extension for AutoCADO Civil 3D0 2016 by Autodesk, Inc v11 Thursday, 05 / 18 / 2017 Hyd. No. 12 combination hydrograph Hydrograph type = Combine Peak discharge = 4.297 cfs Storm frequency = 10 yrs Time to peak = 11.98 hrs Time interval = 1 min Hyd. volume = 10,109 cuft Inflow hyds. = 2, 3, 4, 5 Contrib. drain. area = 1.132 ac combination hydrograph Q (cfs) Hyd. No. 12 -- 10 Year Q (cfs) 5.00 5.00 4.00 4.00 3.00 3.00 2.00 2.00 1.00 1.00 0.00 0.00 0 2 4 6 8 10 12 14 16 18 20 22 24 26 Hyd No. 12 - Hyd No. 2 Hyd No. 3 Hyd No. 4 Time (hrs) - Hyd No. 5 I Hydrograph Report Hydraflow Hydrographs Extension for AutoCADO Civil 3D@ 2016 by Autodesk, Inc v11 Hyd. No. 13 combination hydrograph Hydrograph type = Combine Storm frequency = 10 yrs Time interval = 1 min Inflow hyds. = 6, 7, 8, 9 51 Thursday, 05 118 / 2017 Peak discharge = 3.455 cfs Time to peak = 11.97 hrs Hyd. volume = 7,551 cuft Contrib. drain. area = 0.682 ac combination hydrograph Q (Cfs) Hyd. No. 13 10 Year Q (Cfs) 4.00 4.00 3.00 - 3.00 2.00 2.00 1.00 1.00 0.00 0.00 0 2 4 6 8 10 12 14 16 18 20 22 24 — Hyd No. 13 — Hyd No. 6 — Hyd No. 7 — Hyd No. 8 Time (hrs) — Hyd No. 9 52 Hydrograph Report Hydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc. v11 Thursday, 05 / 18 / 2017 Hyd. No. 14 site discharge - pre -detention Hydrograph type = Combine Peak discharge = 7.748 cfs Storm frequency = 10 yrs Time to peak = 11.97 hrs Time interval = 1 min Hyd. volume = 17,660 cuft Inflow hyds. = 12, 13 Contrib. drain. area = 0.000 ac Q (cfs 8.00 M 4.00 site discharge - pre -detention Hyd. No. 14 -- 10 Year 0.00 M111111 - 0 2 4 Hyd No. 14 Q (cfs) 8.00 4.00 2.00 WAVATil 6 8 10 12 14 16 18 20 22 24 26 Time (hrs) Hyd No. 12 Hyd No. 13 53 Hydrograph Report Hydraflow Hydrographs Extension for AutoCAD® Civil ME) 2016 by Autodesk, Inc v11 Thursday, 05 118 12017 Hyd. No. 15 UG Detention Hydrograph type = Reservoir Peak discharge = 3.047 cfs Storm frequency = 10 yrs Time to peak = 12.10 hrs Time interval = 1 min Hyd. volume = 17,296 cuft Inflow hyd. No. = 14 - site discharge - pre-detentidax. Elevation = 872.31 ft Reservoir name = <New Pond> Max. Storage = 6,285 cuft Storage Indication method used Exfiltration extracted from Outflow Q (cfs) 8.00 4.00 2.00 UG Detention Hyd. No. 15 -- 10 Year Q (cfs) 8.00 4.00 2.00 0.00 ' ' ' ' ' ' 0.00 0 2 4 6 8 10 12 14 16 18 20 22 24 26 Time (hrs) Hyd No 15 Hyd No. 14 Total storage used = 6,285 cuft 54 Hydrograph Report Hydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc. v11 i Hyd. No. 16 Total post -developed discharge Hydrograph type = Combine Storm frequency = 10 yrs Time interval = 1 min Inflow hyds. = 10, 11, 15 Q (cfs) 4.00 i� 3.00 2.00 1.00 FAWITIM Thursday, 05 / 18 / 2017 Peak discharge = 3.705 cfs Time to peak = 12.08 hrs Hyd. volume = 20,379 cuft Contrib. drain. area = 0.912 ac Total post -developed discharge Hyd. No. 16 -- 10 Year Q (cfs) 4.00 3.00 2.00 1.00 WATAI 0 2 4 6 8 10 12 14 16 18 20 22 24 26 Time (hrs) - Hyd No. 16 Hyd No. 10 Hyd No. 11 Hyd No. 15 55 H yd ro g ra p h Summary Report Hydraflow Hydrographs Extension for AutoCADO Civil 3DO 2016 by Autodesk, Inc v11 Hyd. No. Hydrograph type (origin) Peak flow (cfs) Time interval (min) Time to Peak (min) Hyd. volume (cult) Inflow hyd(s) Maximum elevation (ft) Total strge used (cuft) Hydrograph Description 1 SCS Runoff 7 901 1 722 20,359 ------ ------ ------ pre -developed 2 SCS Runoff 3 454 1 718 7,525 ------ --- ----- cb-1 3 SCS Runoff 0 657 1 725 2,032 ------ ------ ------ cb-2 4 SCS Runoff 0.660 1 718 1,552 ------ ------ ------ cb-3 5 SCS Runoff 0.973 1 719 2,055 ------ ------ ------ cb-4 6 SCS Runoff 0 837 1 718 1,771 ------ ------ ------ cb-5 7 SCS Runoff 0 534 1 718 1,209 ------ ------ ------ cb-6 8 SCS Runoff 1 773 1 718 4,014 ------ ------ ------ cb-7 9 SCS Runoff 1 198 1 718 2,587 ------ ------ ------ cb-8 10 SCS Runoff 1 622 1 719 3,586 ------ ------ ------ basin 9 11 SCS Runoff 0457 1 720 1,099 ------ ------ ------ basin 10 12 Combine 5.546 1 718 13,163 2, 3, 4, ------ ------ combination hydrograph 5, 13 Combine 4.342 1 718 9,581 6, 7, 8, ------ ----- combination hydrograph 9, 14 Combine 9 888 1 718 22,745 12,13 ------ ------ site discharge - pre -detention 15 Reservoir 8 129 1 721 22,374 14 87265 6,720 UG Detention 16 Combine 10.06 1 721 27,059 10, 11, 15 ------ --- Total post -developed discharge alt10.gpw Return Period: 25 Year Thursday, 05 / 18 / 2017 56 Hydrograph Report Hydraflow Hydrographs Extension for AutoCADO Civil 3DO 2016 by Autodesk, Inc. v11 Thursday, 05 / 18 / 2017 Hyd. No. 1 pre -developed Hydrograph type = SCS Runoff Peak discharge = 7.901 cfs Storm frequency = 25 yrs Time to peak = 12.03 hrs Time interval = 1 min Hyd. volume = 20,359 cuft Drainage area = 2.720 ac Curve number = 63* Basin Slope = 5.0% Hydraulic length = 75 ft Tc method = TR55 Time of conc. (Tc) = 12.60 min Total precip. = 5.87 in Distribution = Type II Storm duration = 24 hrs Shape factor = 486 * Composite (Area/CN) = [(0.080 x 98) + (0 038 x 98) + (2.606 x 61)] / 2.720 Q (cfs) 8.00 -- 6.00 I. 4.00 2.00 0.00 ' 0 2 4 Hyd No. 1 6 8 pre -developed Hyd. No. 1 -- 25 Year Q (cfs) 8.00 4.00 2.00 ' ' ' ' ' - 0.00 10 12 14 16 18 20 22 24 26 Time (hrs) 57 Hydr®graph Report Hydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc v11 Thursday, 05 / 18 / 2017 Hyd. No. 2 cb-1 Hydrograph type = SCS Runoff Peak discharge = 3.454 cfs Storm frequency = 25 yrs Time to peak = 11.97 hrs Time interval = 1 min Hyd. volume = 7,525 cuft Drainage area = 0.535 ac Curve number = 83 Basin Slope = 0.0% Hydraulic length = 0 ft Tc method = User Time of conc. (Tc) = 8.00 min Total precip. = 5.87 in Distribution = Type II Storm duration = 24 hrs Shape factor = 484 cb-1 Q (cfs) Hyd. No. 2 -- 25 Year Q (cfs) 4.00 4.00 3.00 3.00 2.00 2.00 1.00 1.00 0.00 0.00 0.0 2.0 4.0 6.0 8.0 10.0 12.0 14.0 16.0 18.0 20.0 22.0 Time (hrs) Hyd No. 2 Hydrograph Report Hydraflow Hydrographs Extension for AutoCADO Civil 3D0 2016 by Autodesk, Inc v11 Hyd. No. 3 Time to peak cb-2 Hyd. volume Hydrograph type = SCS Runoff Storm frequency = 25 yrs Time interval = 1 min Drainage area = 0.295 ac Basin Slope = 0.0% Tc method = User Total precip. = 5.87 in Storm duration = 24 hrs Q (Cfs) 1.00 0.90 0.80 0.70 0.60 0.50 0.40 0.30 0.20 0.10 - n nn - 0 2 4 - Hyd No. 3 58 Thursday, 05 / 18 / 2017 Peak discharge = 0.657 cfs Time to peak = 12.08 hrs Hyd. volume = 2,032 cuft Curve number = 61 Hydraulic length = 0 ft Time of conc. (Tc) = 18.00 min Distribution = Type 11 Shape factor = 484 cb-2 Hyd. No. 3 -- 25 Year Q (cfS) 59 Hydrograph Report Hydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc. v11 Thursday, 05 / 18 / 2017 Hyd. No. 4 cb-3 1.00 Hydrograph type = SCS Runoff Peak discharge = 0.660 cfs Storm frequency = 25 yrs Time to peak = 11.97 hrs Time interval = 1 min Hyd. volume = 1,552 cuft Drainage area = 0.087 ac Curve number = 93 Basin Slope = 0.0% Hydraulic length = 0 ft Tc method = User Time of conc. (Tc) = 8.00 min Total precip. = 5.87 in Distribution = Type II Storm duration i = 24 hrs Shape factor = 484 Q (cfs) cb-3 Hyd. No. 4 -- 25 Year -- 1.00 1.00 -. - - -- -- ^�- - - V - 0.90 0.90 - ---- 0.80 `-- ------ --- -- 0.80 ' - -------- - - ---_--._ ._--- - -- -------- 0.70 0.70 --- - ---- --- -�- � 0.60 0.60 - - - -_ - - -� -- - _._ _._ __ -_.- - ------------- ------ -- 0.50 0.50 -_.--------- ------ ------ ---- ---------_ -_---- 0.40 - --- - ----____- 0.40 0.30 0.30 0.20 0.20 0.10 0.10 n no 000 0.0 2.0 Hyd No. 4 4.0 6.0 8.0 10.0 12.0 14.0 16.0 18.0 20.0 Time (hrs) Hydr®graph Report Hydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc v11 Hyd. No. 5 Time to peak cb-4 Hyd. volume Hydrograph type = SCS Runoff Storm frequency = 25 yrs Time interval = 1 min Drainage area = 0.215 ac Basin Slope = 0.0% Tc method = User Total precip. = 5.87 in Storm duration = 24 hrs Q (cfs) 1.00 0.90 0.80 0.70 0.60 0.50 0.40 0.30 020 0.10 0 00 0 2 4 Hyd No. 5 60 Thursday, 05 / 18 / 2017 Peak discharge = 0.973 cfs Time to peak = 11.98 hrs Hyd. volume = 2,055 cuft Curve number = 70 Hydraulic length = 0 ft Time of conc. (Tc) = 8.00 min Distribution = Type II Shape factor = 484 cb-4 Hyd. No. 5 -- 25 Year Q (cfs) 1.00 0.90 - - - - - - - - - ---- - 0.80 - - - -- - - - - - - - 0.70 - - ---- - - --- - - 0.60 - - - - - - - - - - --- - - 0.50 0.40 0.30 0.20 0.10 --- -- - ---- 0.00 6 8 10 12 14 16 18 20 22 24 26 Time (hrs) Hydrograph Report HydraFlow Hydrographs Extension for AutoCADO Civil 3D0 2016 by Autodesk, Inc v11 Hyd. No. 6 Time to peak cb-5 Hyd. volume Hydrograph type = SCS Runoff Storm frequency = 25 yrs Time interval = 1 min Drainage area = 0.168 ac Basin Slope = 0.0% Tc method = User Total precip. = 5.87 in Storm duration = 24 hrs Q (cfs) 1.00 _) 0.90 - 0.80 0.70 0.60 0.50 0.40 0.30 0.20 0.10 0.00 0 2 4 Hyd No. 6 61 Thursday, 05 / 18 / 2017 Peak discharge = 0.837 cfs Time to peak = 11.97 hrs Hyd. volume = 1,771 cuft Curve number = 73 Hydraulic length = 0 ft Time of conc. (Tc) = 8.00 min Distribution = Type II Shape factor = 484 cb-5 Hyd. No. 6 -- 25 Year Q (cfs) 1.00 0.90 0.80 0.70 0.60 0.50 0.40 0.30 0.20 0.10 0.00 10 12 14 16 18 20 22 24 26 Time (hrs) Hydrograph Report Hydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc v11 Hyd. No. 7 Time to peak cb-6 Hyd. volume Hydrograph type = SCS Runoff Storm frequency = 25 yrs Time interval = 1 min Drainage area = 0.074 ac Basin Slope = 0.0% Tc method = User Total precip. = 5.87 in Storm duration = 24 hrs 62 Thursday, 05 / 18 / 2017 Peak discharge = 0.534 cfs Time to peak = 11.97 hrs Hyd. volume = 1,209 cuft Curve number = 89 Hydraulic length = 0 ft Time of conc. (Tc) = 8.00 min Distribution = Type II Shape factor = 484 cb-6 Hyd. No. 7 -- 25 Year Q (cfs) 0.0 2.0 4.0 Hyd No. 7 6.0 8.0 10.0 12.0 14.0 16.0 18.0 20.0 22.0 Time (hrs) MMMMLqw1M' WINNE MMM 0.0 2.0 4.0 Hyd No. 7 6.0 8.0 10.0 12.0 14.0 16.0 18.0 20.0 22.0 Time (hrs) 63 Hydrograph Report Hydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc v11 Thursday, 05 / 18 / 2017 Hyd. No. 8 cb-7 Hydrograph type = SCS Runoff Peak discharge = 1.773 cfs Storm frequency = 25 yrs Time to peak = 11.97 hrs Time interval = 1 min Hyd. volume = 4,014 cuft Drainage area = 0.246 ac Curve number = 89 Basin Slope = 0.0% Hydraulic length = 0 ft Tc method = User Time of conc. (Tc) = 8.00 min Total precip. = 5.87 in Distribution = Type II Storm duration = 24 hrs Shape factor = 484 cb-7 Q (cfs) Hyd. No. 8 -- 25 Year Q (cfs) 2.00 2.00 ,i i .I 1.00 1.00 0.00 0.00 0.0 2.0 4.0 6.0 8.0 10.0 12.0 14.0 16.0 18.0 20.0 22.0 ' Hyd No. 8 Time (hrs) Hvdroaranh Ranort Hydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc. v11 Hyd. No. 9 Time to peak cb-8 Hyd. volume Hydrograph type = SCS Runoff Storm frequency = 25 yrs Time interval = 1 min Drainage area = 0.194 ac Basin Slope = 0.0% Tc method = User Total precip. = 5.87 in Storm duration = 24 hrs Q (cfs) 2.00 1.00 0.00 0 2 4 6 Hyd No. 9 64 Thursday, 05 / 18 / 2017 Peak discharge = 1.198 cfs Time to peak = 11.97 hrs Hyd. volume = 2,587 cuft Curve number = 81 Hydraulic length = 0 ft Time of conc. (Tc) = 8.00 min Distribution = Type II Shape factor = 484 cb-8 Hyd. No. 9 -- 25 Year Q (cfs) 2.00 1.00 8 10 12 14 16 18 20 22 24 Time (hrs) 65 Hydrograph Report Hydraflow Hydrographs Extension for AutoCADO Civil 3DO 2016 by Autodesk, Inc v11 Thursday, 05 / 18 / 2017 Hyd. No. 10 basin 9 Hydrograph type = SCS Runoff Peak discharge = 1.622 cfs Storm frequency = 25 yrs Time to peak = 11.98 hrs Time interval = 1 min Hyd. volume = 3,586 cuft Drainage area = 0.702 ac Curve number = 55 Basin Slope = 0.0% Hydraulic length = 0 ft Tc method = User Time of conc. (Tc) = 7.00 min Total precip. = 5.87 in Distribution = Type II Storm duration = 24 hrs Shape factor = 484 Q (cfs) 2.00 1.00 basin 9 Hyd. No. 10 -- 25 Year Q (cfs) 2.00 1.00 0.00 1 1 1 1 A I 10.00 0 2 4 6 8 10 12 14 16 18 20 22 24 26 Hyd No. 10 Time (hrs) .. Hydrograph Report Hydraflow Hydrographs Extension for AutoCAD@ Civil 31DO 2016 by Autodesk, Inc v11 Thursday, 05 / 18 / 2017 Hyd. No. 11 basin 10 Hydrograph type = SCS Runoff Peak discharge = 0.457 cfs Storm frequency = 25 yrs Time to peak = 12.00 hrs Time interval = 1 min Hyd. volume = 1,099 cuft Drainage area = 0.210 ac Curve number = 55 Basin Slope = 0.0% Hydraulic length = 0 ft Tc method = User Time of conc. (Tc) = 10.00 min Total precip. = 5.87 in Distribution = Type ll Storm duration = 24 hrs Shape factor = 484 Q (cfs) 0.50 0.45 0.40 0.35 0.30 0.25 0.20 0.15 0.10 0.05 0 00 0 2 4 Hyd No. 11 basin 10 Hyd. No. 11 -- 25 Year Q (cfs) 0.50 -- - - -- - -- - - -- - - 0.45 -- -- - - --- - ---- - - -- -- ------ - - ---- 0.40 0.35 0.30 - -- - ---- - - - - - - - 0.25 - - - - -- --- - - - 0.20 0.15 0.10 0.05 0.00 6 8 10 12 14 16 18 20 22 24 26 Time (hrs) Hydrograph Report Hydraflow Hydrographs Extension for AutoCAD® Civil 3D@ 2016 by Autodesk, Inc. v11 Hyd. No. 12 combination hydrograph Hydrograph type = Combine Storm frequency = 25 yrs Time interval = 1 min Inflow hyds. = 2, 3, 4, 5 67 Thursday, 05 / 18 / 2017 Peak discharge = 5.546 cfs Time to peak = 11.97 hrs Hyd. volume = 13,163 cuft Contrib. drain. area = 1.132 ac combination hydrograph Q (Cfs) Q MS) Hyd. No. 12 25 Year 6.00 6.00 5.00 5.00 4.00 4.00 3.00 3.00 2.00 - 2.00 1.00 1.00 0.00 0.00 0 2 4 6 8 10 12 14 16 18 20 22 24 26 — Hyd No. 12 — Hyd No. 2 — Hyd No. 3 — Hyd No. 4 Time (hrs) — Hyd No. 5 Hydrograph Report Hydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc. v11 Hyd. No. 13 combination hydrograph Hydrograph type = Combine Storm frequency = 25 yrs Time interval = 1 min Inflow hyds. = 6, 7, 8, 9 Q (cfs) 5.00 4.00 I i 3.00 2.00 �I 1.00 0.00 0.0 2.0 4.0 Hyd No. 13 68 Thursday, 05 / 18 / 2017 Peak discharge = 4.342 cfs Time to peak = 11.97 hrs Hyd. volume = 9,581 cuft Contrib. drain. area = 0.682 ac combination hydrograph Hyd. No. 13 -- 25 Year 6.0 8.0 Hyd No. 6 Hyd No. 9 10.0 12.0 14.0 Hyd No. 7 16.0 18.0 20.0 Hyd No. 8 Q (cfs) 5.00 4.00 3.00 2.00 1.00 ME- 0.00 22.0 Time (hrs) 69 Hydrograph Report Hydraflow Hydrographs Extension for AutoCADO Civil 3DO 2016 by Autodesk, Inc v11 Thursday, 05 / 18 / 2017 Hyd. No. 14 site discharge - pre -detention Hydrograph type = Combine Peak discharge = 9.888 cfs Storm frequency = 25 yrs Time to peak = 11.97 hrs Time interval = 1 min Hyd. volume = 22,745 cult Inflow hyds. = 12, 13 Contrib. drain. area = 0.000 ac site discharge - pre -detention Q (cfs) Hyd. No. 14 -- 25 Year Q (cfs) 10.00 10.00 8.00 8.00 6.00 6.00 - - - - -- --- - - - -- - - - - - - - -- - — - - - - - - - - - - - - - - - - - - - 4.00 4.00 2.00 2.00 0.00 0.00 0 2 4 6 8 10 12 14 16 18 20 22 24 26 Time (hrs) Hyd No. 14 Hyd No. 12 Hyd No. 13 70 Hydrograph Report Hydraflow Hydrographs Extension for AutoCAD@ Civil 3DO 2016 by Autodesk, Inc v11 Thursday. 05 / 18 12017 Hyd. No. 15 UG Detention Hydrograph type = Reservoir Peak discharge = 8.129 cfs Storm frequency = 25 yrs Time to peak = 12.02 hrs Time interval = 1 min Hyd. volume = 22,374 cuft Inflow hyd. No. = 14 - site discharge - pre-detentidax. Elevation = 872.65 ft Reservoir name = <New Pond> Max. Storage = 6,720 cuft Storage Indication method used. EAltration extracted from Outflow UG Detention Q (cfs) Hyd. No. 15 -- 25 Year Q (cfs) 10.00 10.00 8.00 8.00 6.00 6.00 4.00 4.00 2.00 200 0.00 - 0.00 0 2 4 6 8 10 12 14 16 18 20 22 24 26 Time (hrs) Hyd No. 15 Hyd No. 14 � _] Total storage used = 6,720 cult 71 Hydrograph Report Hydraflow Hydrographs Extension for AutoCADO Civil 3DO 2016 by Autodesk, Inc. v11 Thursday, 05 118 / 2017 Hyd. No. 16 Total post -developed discharge Hydrograph type = Combine Peak discharge = 10.06 cfs Storm frequency = 25 yrs Time to peak = 12.02 hrs Time interval = 1 min Hyd. volume = 27,059 cuft Inflow hyds. = 10, 11, 15 Contrib. drain. area = 0.912 ac Total post -developed discharge Q MS) Hyd. No. 16 -- 25 Year Q MS) 12.00 12.00 t 10.00 10.00 8.00 8.00 -- I 6.00 6.00 4.00 4.00 2.00 2.00 \tat 0.00 0.00 0 2 4 6 8 10 12 14 16 18 20 22 24 26 Time (hrs) Hyd No. 16 Hyd No. 10 Hyd No. 11 - Hyd No. 15 72 Hydrograph Summary Report Hydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc v11 Hyd. No. Hydrograph type (origin) Peak flow (cfs) Time interval (min) Time to Peak (min) Hyd. volume (cuft) Inflow hyd(s) Maximum elevation (ft) Total strge used (cuft) Hydrograph Description 1 SCS Runoff 1001 1 721 25,568 ------ ------ ------ pre -developed 2 SCS Runoff 4 028 1 718 8,850 ------ ------ ------ cb-1 3 SCS Runoff 0 846 1 725 2,574 ------ ------ ------ cb-2 4 SCS Runoff 0 750 1 718 1,779 ------ ------ ------ cb-3 5 SCS Runoff 1 188 1 718 2,514 ------ ------ ------ cb-4 6 SCS Runoff 1 010 1 718 2,145 ------ ------ ------ cb-5 7 SCS Runoff 0.613 1 718 1,400 ------ ------ ------ cb-6 8 SCS Runoff 2034 1 718 4,648 ------ ------ ------ cb-7 9 SCS Runoff 1 406 1 718 3,059 ------ ------ ------ cb-8 10 SCS Runoff 2 170 1 719 4,686 ------ ------ ------ basin 9 11 SCS Runoff 0 614 1 720 1,436 ---- ------ ------ basin 10 12 Combine 6 577 1 718 15,716 2, 3, 4, ------ ------ combination hydrograph 5, 13 Combine 5 062 1 718 11,252 6, 7, 8, ------ ------ combination hydrograph 9, 14 Combine 11 64 1 718 26,969 12,13 ------ ------ site discharge - pre -detention 15 Reservoir 11 09 1 720 26,593 14 87278 6,889 UG Detention 16 Combine 1380 1 720 32,715 10, 11,15 ------ ------ Total post -developed discharge aIt10 gpw Return Period: 50 Year Thursday, 05 / 18 / 2017 73 Hydrograph Report Hydraflow Hydrographs Extension for AutoCADO Civil 3D0 2016 by Autodesk, Inc v11 Thursday, 05 / 18 / 2017 Hyd. No. 1 pre -developed Hydrograph type = SCS Runoff Peak discharge = 10.01 cfs Storm frequency = 50 yrs Time to peak = 12.02 hrs Time interval = 1 min Hyd. volume = 25,568 cuft Drainage area = 2.720 ac Curve number = 63* Basin Slope = 5.0% Hydraulic length = 75 ft Tc method = TR55 Time of conc. (Tc) = 12.60 min Total precip. = 6.62 in Distribution = Type II Storm duration = 24 hrs Shape factor = 486 * Composite (Area/CN) = [(0 080 x 98) + (0 038 x 98) + (2 606 x 61)] / 2 720 Q (cfs) 12.00 10.00 8.00 6.00 4.00 2.00 pre -developed Hyd. No. 1 -- 50 Year 0 2 4 6 8 10 12 14 16 18 20 22 24 26 vvV Hyd No. 1 Time (hrs) Hydrograph Report Hydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc. v11 Hyd. No. 2 Time to peak cb-1 Hyd. volume Hydrograph type = SCS Runoff Storm frequency = 50 yrs Time interval = 1 min Drainage area = 0.535 ac Basin Slope = 0.0% Tc method = User Total precip. = 6.62 in Storm duration = 24 hrs Q (cfs) 5.00 i 4.00 3.00 2.00 1.00 74 Thursday, 05 / 18 / 2017 Peak discharge = 4.028 cfs Time to peak = 11.97 hrs Hyd. volume = 8,850 cuft Curve number = 83 Hydraulic length = 0 ft Time of conc. (Tc) = 8.00 min Distribution = Type II Shape factor = 484 cb-1 Hyd. No. 2 -- 50 Year Q (cfs) 5.00 4.00 3.00 2.00 1.00 0.0 2.0 4.0 6.0 8.0 10.0 12.0 14.0 16.0 18.0 20.0 22.0 Hyd No. 2 Time (hrs) Hydrograph Report Hydraflow Hydrographs Extension for AutoCAD® Civil 3D@ 2016 by Autodesk, Inc. v11 Hyd. No. 3 Time to peak cb-2 Hyd. volume Hydrograph type = SCS Runoff Storm frequency = 50 yrs Time interval = 1 min Drainage area = 0.295 ac Basin Slope = 0.0% Tc method = User Total precip. = 6.62 in Storm duration = 24 hrs Q (cfs) 1.00 0.90 0.80 0.70 0.60 - 0.50 0.40 0.30 0.20 0.10 - 0 2 4 - Hyd No. 3 75 Thursday, 05 / 18 / 2017 Peak discharge = 0.846 cfs Time to peak = 12.08 hrs Hyd. volume = 2,574 cuft Curve number = 61 Hydraulic length = 0 ft Time of conc. (Tc) = 18.00 min Distribution = Type 11 Shape factor = 484 cb-2 Hyd. No. 3 -- 50 Year Q (Cfs) Hydrograph Report Hydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc v11 Hyd. No. 4 Time to peak cb-3 Hyd. volume Hydrograph type = SCS Runoff Storm frequency = 50 yrs Time interval = 1 min Drainage area = 0.087 ac Basin Slope = 0.0% Tc method = User Total precip. = 6.62 in Storm duration = 24 hrs Q (cfs) 76 Thursday, 05 / 18 / 2017 Peak discharge = 0.750 cfs Time to peak = 11.97 hrs Hyd. volume = 1,779 cuft Curve number = 93 Hydraulic length = 0 ft Time of conc. (Tc) = 8.00 min Distribution = Type II Shape factor = 484 cb-3 Hyd. No. 4 -- 50 Year Q (cfs) 1.00 1.00 - - --- - --- - 0.90 0.90 0.80 - 0.80 - 0.70 0.70 ----------- - - _..-_.--- - -- ------ ------- 0.60 -� - _. --.-- ----- - 0.60 - --- - ---- - - -- - -- - - -- --- - ___ -- - 0.50 ----- --- - ---- - I- 0.50 - - ---_- - - -... _ --_- - -- - ---- - __.--_ ---�m.-__ - 0.40 - - - - ------ - ------ 0.40 0.30 0.30 --- - __-- --- -- --- , 0.20 0.20 0.10 0.10 000 000 0.0 2.0 Hyd No. 4 4.0 6.0 8.0 10.0 12.0 14.0 16.0 18.0 20.0 Time (hrs) Hydrograph Report Hydraflow Hydrographs Extension for AutoCADO Civil 3DO 2016 by Autodesk, Inc v11 Hyd. No. 5 cb-4 Hydrograph type = SCS Runoff Storm frequency = 50 yrs Time interval = 1 min Drainage area = 0.215 ac Basin Slope = 0.0% Tc method = User Total precip. = 6.62 in Storm duration = 24 hrs Q (cfs 2.00 1.00 AWS76>t 0 2 4 Hyd No. 5 Peak discharge Time to peak Hyd. volume Curve number Hydraulic length Time of conc. (Tc) Distribution Shape factor cb-4 Hyd. No. 5 -- 50 Year 77 Thursday, 05 / 18 / 2017 = 1.188 cfs = 11.97 hrs = 2,514 cuft = 70 = 0 ft = 8.00 min = Type II = 484 6 8 10 12 14 16 18 20 22 24 Q (cfs) 2.00 1.00 26 Time (hrs) Hydrograph Report Hydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc. v11 Hyd. No. 6 Peak discharge cb-5 Time to peak Hydrograph type = SCS Runoff Storm frequency = 50 yrs Time interval = 1 min Drainage area = 0.168 ac Basin Slope = 0.0% Tc method = User Total precip. = 6.62 in Storm duration = 24 hrs Q (cfs) 2.00 1.00 VIM a cb-5 Hyd. No. 6 -- 50 Year Q (cfs) 2.00 1.00 E!"# # 0 2 4 6 8 10 12 14 16 18 20 22 24 26 Hyd No. 6 Time (hrs) Thursday, 05 / 18 / 2017 Peak discharge = 1.010 cfs Time to peak = 11.97 hrs Hyd. volume = 2,145 cuft Curve number = 73 Hydraulic length = 0 ft Time of conc. (Tc) = 8.00 min Distribution = Type II Shape factor = 484 cb-5 Hyd. No. 6 -- 50 Year Q (cfs) 2.00 1.00 E!"# # 0 2 4 6 8 10 12 14 16 18 20 22 24 26 Hyd No. 6 Time (hrs) 79 Hydrograph Report Hydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc v11 Thursday, 05 / 18 / 2017 Hyd. No. 7 cb-6 Hydrograph type = SCS Runoff Peak discharge = 0.613 cfs Storm frequency = 50 yrs Time to peak = 11.97 hrs Time interval = 1 min Hyd. volume = 1,400 cuft Drainage area = 0.074 ac Curve number = 89 Basin Slope = 0.0% Hydraulic length = 0 ft Tc method = User Time of conc. (Tc) = 8.00 min Total precip. = 6.62 in Distribution = Type II Storm duration = 24 hrs Shape factor = 484 cb-6 Q (cfs) Hyd. No. 7 -- 50 Year Q (cfs) 1.00 0.90 0.80 0.70 0.60 0.50 0.40 0.30 0.20 010 000 0.0 2.0 4.0 6.0 Hyd No. 7 1.00 - -- -- --- -- - - - - - --- - -__ -.- - - - -- - 0.90 -- - - --- - - - -- - - - - - - - - -- - - - 0.80 - 0.70 - - -- - - - - - - - 0.60 - - - - - --- --- - -- 0.50 0.40 0.30 0.20 0.10 - - --- - - - - 0.00 8.0 10.0 12.0 14.0 16.0 18.0 200 22.0 Time (hrs) Hydrograph Report Hydraflow Hydrographs Extension for AutoCADO Civil 3D0 2016 by Autodesk, Inc v11 Hyd. No. 8 - cb-7 Hydrograph type = SCS Runoff Storm frequency = 50 yrs Time interval = 1 min Drainage area = 0.246 ac Basin Slope = 0.0% Tc method = User Total precip. = 6.62 in Storm duration = 24 hrs Q (cfs) 3.00 a' 2.00 1.00 0.00 ' 0.0 2.0 - Hyd No. 8 Peak discharge Time to peak Hyd. volume Curve number Hydraulic length Time of conc. (Tc) Distribution Shape factor cb-7 Hyd. No. 8 -- 50 Year 80 Thursday, 05 / 18 / 2017 = 2.034 cfs = 11.97 hrs = 4,648 cult = 89 = 0 ft = 8.00 min = Type II = 484 Q (cfs) 3.00 2.00 1.00 0.00 4.0 6.0 8.0 10.0 12.0 14.0 16.0 18.0 20.0 22.0 Time (hrs) Hydrograph Report Hydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc. v11 Hyd. No. 9 cb-8 Hydrograph type = SCS Runoff Storm frequency = 50 yrs Time interval = 1 min Drainage area = 0.194 ac Basin Slope = 0.0% Tc method = User Total precip. = 6.62 in Storm duration = 24 hrs Peak discharge Time to peak Hyd. volume Curve number Hydraulic length Time of conc. (Tc) Distribution Shape factor cb-8 Hyd. No. 9 -- 50 Year 81 Thursday, 05 / 18 / 2017 = 1.406 cfs = 11.97 hrs = 3,059 cuft = 81 = Oft = 8.00 min = Type II = 484 r 1.00 0 00 0.0 2.0 Hyd No. 9 Q (cfs) 2.00 1.00 0.00 4.0 6.0 8.0 10.0 12.0 14.0 16.0 18.0 20.0 22.0 Time (hrs) Hydrograph Report Hydraflow Hydrographs Extension for AutoCADO Civil 3DO 2016 by Autodesk, Inc v11 Hyd. No. 10 Time to peak basin 9 Hyd. volume Hydrograph type = SCS Runoff Storm frequency = 50 yrs Time interval = 1 min Drainage area = 0.702 ac Basin Slope = 0.0% Tc method = User Total precip. = 6.62 in Storm duration = 24 hrs Q (cfs) 3.00 !I !i - 2.00 1.00 0.00 ' ---J- 0 2 4 Hyd No. 10 �I 82 Thursday, 05 / 18 / 2017 Peak discharge = 2.170 cfs Time to peak = 11.98 hrs Hyd. volume = 4,686 cuft Curve number = 55 Hydraulic length = 0 ft Time of conc. (Tc) = 7.00 min Distribution = Type II Shape factor = 484 basin 9 Hyd. No. 10 -- 50 Year Q (cfs) 3.00 2.00 1.00 ' ' 0.00 6 8 10 12 14 16 18 20 22 24 26 Time (hrs) Hydrograph Report Hyd. No. 11 basin 10 Hydrograph type = SCS Runoff Storm frequency = 50 yrs Time interval = 1 min Drainage area = 0.210 ac Basin Slope = 0.0% Tc method = User Total precip. = 6.62 in Storm duration = 24 hrs i Q (cfs) 1.00 0.90 +I - 0.80 0.70 0.60 0.50 - 0.40 0.30 0.20 ____----- -- - ' 0.10 000 - 0 2 4 — Hyd No. 11 83 Thursday, 05 / 18 / 2017 Peak discharge = 0.614 cfs Time to peak = 12.00 hrs Hyd. volume = 1,436 cuft Curve number = 55 Hydraulic length = 0 ft Time of conc. (Tc) = 10.00 min Distribution = Type II Shape factor = 484 basin 10 Hyd. No. 11 -- 50 Year Q (cfs) 84 Hy►dr®graph Report Hydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc v11 Thursday, 05 / 18 / 2017 Hyd. No. 12 combination hydrograph Hydrograph type = Combine Peak discharge = 6.577 cfs Storm frequency = 50 yrs Time to peak = 11.97 hrs Time interval = 1 min Hyd. volume = 15,716 cuft Inflow hyds. = 2, 3, 4, 5 Contrib. drain. area = 1.132 ac Q (cfs) 700 6.00 5.00 4.00 3.00 2.00 1.00 combination hydrograph Hyd. No. 12 -- 50 Year Q (cfs) 7.00 . O1 5.00 4.00 3.00 2.00 1.00 0.00 ' 0.00 0 2 4 6 8 10 12 14 16 18 20 22 24 26 Hyd No. 12 Hyd No. 2 Hyd No. 3 Hyd No. 4 Time (hrs) Hyd No 5 85 Hydrograph Report Hydraflow Hydrographs Extension for AutoCAD® Civil 3D@ 2016 by Autodesk, Inc v11 Thursday, 05 / 18 / 2017 Hyd. No. 13 combination hydrograph Hydrograph type = Combine Peak discharge = 5.062 cfs Storm frequency = 50 yrs Time to peak = 11.97 hrs Time interval = 1 min Hyd. volume = 11,252 cuft Inflow hyds. = 6, 7, 8, 9 Contrib. drain. area = 0.682 ac Q (Cfs) 6.00 i 5.00 4.00 3.00 2.00 1.00 combination hydrograph Hyd. No. 13 50 Year I 0.00 MEMOR MMM!Mzzz� - -- - 0.0 2.0 4.0 - Hyd No. 13 6.0 8.0 - Hyd No. 6 - Hyd No. 9 Q (Cfs) 6.00 5.00 4.00 3.00 2.00 1.00 UAWIT11111 10.0 12.0 14.0 16.0 18.0 20.0 22.0 - Time (hrs) Hyd No. 7 - Hyd No. 8 Hydrograph Report Hydraflow Hydrographs Extension for AutoCAD@) Civil 3DO 2016 by Autodesk, Inc v11 Hyd. No. 14 site discharge - pre -detention Hydrograph type = Combine Storm frequency = 50 yrs Time interval = 1 min Inflow hyds. = 12, 13 !_I Q(cfs) 12.00 10.00 ij 8.00 j 6.00 4.00 2.00 I 0.00 ' 1' 0 2 4 Hyd No. 14 86 Thursday, 05 / 18 / 2017 Peak discharge = 11.64 cfs Time to peak = 11.97 hrs Hyd. volume = 26,969 cuft Contrib. drain. area = 0.000 ac site discharge - pre -detention Hyd. No. 14 -- 50 Year 6 8 10 Hyd No. 12 12 14 16 Hyd No. 13 18 20 22 Q (cfs) 12.00 10.00 4.00 2.00 M=- 0.00 24 Time (hrs) 87 Hydrograph Report Hydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc. v11 Thursday, 05 / 18 / 2017 Hyd. No. 15 UG Detention Hydrograph type = Reservoir Peak discharge = 11.09 cfs Storm frequency = 50 yrs Time to peak = 12.00 hrs Time interval = 1 min Hyd. volume = 26,593 cuft Inflow hyd. No. = 14 - site discharge - pre-detentdax. Elevation = 872.78 ft Reservoir name = <New Pond> Max. Storage = 6,889 cuft Storage Indication method used Exfiltration extracted from Outflow UG Detention Q (cfs) Hyd. No. 15 -- 50 Year Q (cfs) 12.00 12.00 10.00 10.00 8.00 8.00 6.00 6.00 i 4.00 4.00 2.00 2.00 0.00 0.00 0 2 4 6 8 10 12 14 16 18 20 22 24 26 Time (hrs) Hyd No 15 Hyd No. 14 Total storage used = 6,889 cult 88 Hydrograph Report Hydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc v11 Hyd. No. 16 Total post -developed discharge Hydrograph type = Combine Storm frequency = 50 yrs Time interval = 1 min Inflow hyds. = 10, 11, 15 Q (cfs 14.00 12.00 10.00 8.00 RM 4.00 2.00 Thursday, 05 / 18 / 2017 Peak discharge = 13.80 cfs Time to peak = 12.00 hrs Hyd. volume = 32,715 cuft Contrib. drain. area = 0.912 ac Total post -developed discharge Hyd. No. 16 -- 50 Year Q (cfs) 14.00 12.00 10.00 U-10111 4.00 2.00 0.00 1 1 10.00 0 2 4 6 8 10 12 14 16 18 20 22 24 26 Hyd No. 16 Hyd No. 10 Hyd No. 11 Hyd No. 15 Time (hrs) 1 Hydrograph Summary Report Hydraflow Hydrographs Extension for AutoCAD® Civil 3DO 2016 by Autodesk, Inc. v11 Hyd. No. Hydrograph type (origin) Peak flow (cfs) Time interval (min) Time to Peak (min) Hyd. volume (cuft) Inflow hyd(s) Maximum elevation (ft) Total strge used (cuft) Hydrograph Description 1 SCS Runoff 12.26 1 721 31,114 ------ ------ ------ pre -developed 2 SCS Runoff 4.609 1 718 10,209 --- ------ ----- cb-1 3 SCS Runoff 1.048 1 724 3,154 ---- ------ -- -- cb-2 4 SCS Runoff 0.841 1 718 2,010 ----- ------ ---- cb-3 5 SCS Runoff 1 411 1 718 2,994 ------ ------ ------ cb-4 6 SCS Runoff 1 188 1 718 2,534 ------ ------ ------ cb-5 7 SCS Runoff 0 692 1 718 1,595 ------ ------ ----- cb-6 8 SCS Runoff 2 297 1 718 5,294 ----- -- -- cb-7 9 SCS Runoff 1 617 1 718 3,545 --- ------ ---- cb-8 10 SCS Runoff 2 760 1 719 5,885 ------ ------ ------ basin 9 11 SCS Runoff 0.784 1 720 1,803 ------ ------ ------ basin 10 12 Combine 7 635 1 718 18,367 2, 3, 4, ------ ------ combination hydrograph 5, 13 Combine 5 793 1 718 12,967 6, 7, 8, ----- ------ combination hydrograph 9, 14 Combine 13.43 1 718 31,335 12,13 ----- ---- site discharge - pre -detention 15 Reservoir 13.21 1 719 30,955 14 87287 6,998 UG Detention 16 Combine 1675 1 719 38,643 10, 11, 15 ------ ------ Total post -developed discharge alt10.gpw Return Period: 100 Year Thursday, 05 / 18 / 2017 90 Hydrograph Report Hydraflow Hydrographs Extension for AutoCADO Civil 3DO 2016 by Autodesk, Inc v11 Thursday, 05 / 18 / 2017 Hyd. No. 1 pre -developed Hydrograph type = SCS Runoff Peak discharge = 12.26 cfs Storm frequency = 100 yrs Time to peak = 12.02 hrs Time interval = 1 min Hyd. volume = 31,114 cuft Drainage area = 2.720 ac Curve number = 63* Basin Slope = 5.0% Hydraulic length = 75 ft Tc method = TR55 Time of conc. (Tc) = 12.60 min Total precip. = 7.38 in Distribution = Type II Storm duration = 24 hrs Shape factor = 486 Composite (Area/CN) _ [(0.080 x 98) + (0 038 x 98) + (2 606 x 61)] / 2 720 pre -developed Q (cfs) Hyd. No. 1 -- 100 Year Q (cfs) 14.00 12.00 10.00 8.00 6.00 4.00 2.00 0 00 14.00 12.00 10.00 800 6.00 4.00 2.00 0 00 0 2 4 6 8 10 12 14 16 18 20 22 24 26 Hyd No. 1 Time (hrs) 91 Hydrograph Report Hydraflow Hydrographs Extension for AutoCADO Civil 3DO 2016 by Autodesk, Inc v11 Thursday, 05 / 18 / 2017 Hyd. No. 2 cb-1 Hydrograph type = SCS Runoff Peak discharge = 4.609 cfs Storm frequency = 100 yrs Time to peak = 11.97 hrs Time interval = 1 min Hyd. volume = 10,209 cuft Drainage area = 0.535 ac Curve number = 83 Basin Slope = 0.0% Hydraulic length = 0 ft Tc method = User Time of conc. (Tc) = 8.00 min Total precip. = 7.38 in Distribution = Type II Storm duration = 24 hrs Shape factor = 484 Q (cfs) - 5.00 i 4.00 3.00 2.00 1.00 cb-1 Hyd. No. 2 -- 100 Year Q (cfs) 5.00 4.00 3.00 2.00 1.00 NOW 0.0 2.0 4.0 6.0 8.0 10.0 12.0 14.0 16.0 18.0 20.0 22.0 Hyd No. 2 Time (hrs) Hydrograph Report Hydraflow Hydrographs Extension for AutoCADO Civil 3DO 2016 by Autodesk, Inc v11 Hyd. No. 3 Time to peak cb-2 Hyd. volume Hydrograph type = SCS Runoff Storm frequency = 100 yrs Time interval = 1 min Drainage area = 0.295 ac Basin Slope = 0.0% Tc method = User Total precip. = 7.38 in Storm duration = 24 hrs - -1 Q (cfs) 2.00 !— I 1.00 92 Thursday, 05 / 18 / 2017 Peak discharge = 1.048 cfs Time to peak = 12.07 hrs Hyd. volume = 3,154 cuft Curve number = 61 Hydraulic length = 0 ft Time of conc. (Tc) = 18.00 min Distribution = Type II Shape factor = 484 cb-2 Hyd. No. 3 -- 100 Year Q (cfs) 2.00 1.00 0.00 ' ' 0.00 0 2 4 6 8 10 12 14 16 18 20 22 24 26 Hyd No. 3 Time (hrs) Hydrograph Report Hydraflow Hydrographs Extension for AutoCAD@) Civil 3D@) 2016 by Autodesk, Inc v11 Hyd. No. 4 Time to peak cb-3 Hyd. volume Hydrograph type = SCS Runoff Storm frequency = 100 yrs Time interval = 1 min Drainage area = 0.087 ac Basin Slope = 0.0% Tc method = User Total precip. = 7.38 in Storm duration = 24 hrs Q (cfs) 93 Thursday, 05 / 18 / 2017 Peak discharge = 0.841 cfs Time to peak = 11.97 hrs Hyd. volume = 2,010 cuft Curve number = 93 Hydraulic length = 0 ft Time of conc. (Tc) = 8.00 min Distribution = Type II Shape factor = 484 cb-3 Hyd. No. 4 -- 100 Year Q (cfs) 1.00 1.00 0.90 0.90 0.80 0.80 ' 0.70 ---- - - -- ----- --- - -- -- --- -- ----- - - ----- 0.70 0.60 - -- - ----- - ------ ------------- - - --- - ---- ---- --- 0.60 0.50 0.50 0.40 0.40 0.30 0.30 0.20 0.20 0.10 0.10 0 00 000 0.0 2.0 Hyd No. 4 4.0 6.0 8.0 10.0 12.0 14.0 16.0 18.0 20.0 Time (hrs) Hydr®graph Report Hydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc v11 Hyd. No. 5 cb-4 Hydrograph type = SCS Runoff Peak discharge Storm frequency = 100 yrs Time to peak Time interval = 1 min Hyd. volume Drainage area = 0.215 ac Curve number Basin Slope = 0.0% Hydraulic length Tc method = User Time of conc. (Tc) Total precip. = 7.38 in Distribution Storm duration = 24 hrs Shape factor Q (cfs) 2.00 1.00 0.00 ' ' 0 2 4 Hyd No. 5 cb-4 Hyd. No. 5 -- 100 Year 94 Thursday, 05 / 18 / 2017 = 1.411 cfs = 11.97 hrs = 2,994 cuft = 70 = Oft = 8.00 min = Type II = 484 6 8 10 12 14 16 18 20 22 24 Q (cfs) 2.00 1.00 0.00 26 Time (hrs) 95 Hydrograph Report Hydraflow Hydrographs Extension for AutoCAD® Civil 3DO 2016 by Autodesk, Inc v11 Hyd. No. 6 Time to peak cb-5 Hyd. volume Hydrograph type = SCS Runoff Storm frequency = 100 yrs Time interval = 1 min Drainage area = 0.168 ac Basin Slope = 0.0% Tc method = User Total precip. = 7.38 in Storm duration = 24 hrs 1.00 i 000 0 2 4 Hyd No. 6 Thursday, 05 / 18 / 2017 Peak discharge = 1.188 cfs Time to peak = 11.97 hrs Hyd. volume = 2,534 cuft Curve number = 73 Hydraulic length = 0 ft Time of conc. (Tc) = 8.00 min Distribution = Type II Shape factor = 484 cb-5 Hyd. No. 6 -- 100 Year Q (cfs) 2.00 1.00 ' ' 0.00 8 10 12 14 16 18 20 22 24 Time (hrs) Hydrograph Report Hydraflow Hydrographs Extension for AutoCADO Civil 3DO 2016 by Autodesk, Inc v11 Hyd. No. 7 Time to peak cb-6 Hyd. volume Hydrograph type = SCS Runoff Storm frequency = 100 yrs Time interval = 1 min Drainage area = 0.074 ac Basin Slope = 0.0% Tc method = User Total precip. = 7.38 in Storm duration = 24 hrs Thursday, 05 / 18 12017 Peak discharge = 0.692 cfs Time to peak = 11.97 hrs Hyd. volume = 1,595 cuft Curve number = 89 Hydraulic length = 0 ft Time of conc. (Tc) = 8.00 min Distribution = Type II Shape factor = 484 cb-6 Q (cfs) Hyd. No. 7 -- 100 Year Q (cfs) 1.00 0.90 --- -- - - - -- -- - - 0.80 0.70 0.60 0.50 0.40 030 0.20 0.10 0.00 0.0 2.0 4.0 6.0 Hyd No. 7 1.00 - -- -- - - - - - - - - - -- - 0.90 - - - - - - - - 0.80 0.70 - - - - - -- - - - - 0.60 0.50 - - - - --- - - 0.40 0.30 0.20 0.10 - - - - - - -- - - - 0.00 8.0 10.0 12.0 14.0 16.0 18.0 20.0 22.0 Time (hrs) 97 Hydrograph Report Hydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc v11 Thursday, 05 / 18 / 2017 Hyd. No. 8 cb-7 Hydrograph type = SCS Runoff Peak discharge = 2.297 cfs Storm frequency = 100 yrs Time to peak = 11.97 hrs Time interval = 1 min Hyd. volume = 5,294 cuft Drainage area = 0.246 ac Curve number = 89 Basin Slope = 0.0% Hydraulic length = 0 ft Tc method = User Time of conc. (Tc) = 8.00 min Total precip. = 7.38 in Distribution = Type II Storm duration = 24 hrs Shape factor = 484 cb-7 Q (cfs) Hyd. No. 8 -- 100 Year Q (cfs) 3.00 3.00 2.00 2.00 1.00 1.00 0.00 0.00 0.0 2.0 4.0 6.0 8.0 10.0 12.0 14.0 16.0 18.0 20.0 22.0 Hyd No. 8 Time (hrs) Hydrograph Report Hydraflow Hydrographs Extension for AutoCADO Civil 3D0 2016 by Autodesk, Inc v11 Hyd. No. 9 cb-8 Hydrograph type = SCS Runoff Storm frequency = 100 yrs Time interval = 1 min Drainage area = 0.194 ac Basin Slope = 0.0% Tc method = User Total precip. = 7.38 in _I Storm duration = 24 hrs WITH 0.02.0 Hyd No. 9 Pe@k discharge Time to peak Hyd. volume Curve number Hydraulic length Time of conc. (Tc) Distribution Shape factor cb-8 Hyd. No. 9 -- 100 Year 98 Thursday, 05 / 18 / 2017 = 1.617 cfs = 11.97 hrs = 3,545 cult = 81 = Oft = 8.00 min = Type II = 484 4.0 6.0 8.0 10.0 12.0 14.0 16.0 18.0 20.0 Q (cfs) 2.00 1.00 22.0 Time (hrs) Hydrograph Report Hyd. No. 10 basin 9 Hydrograph type = SCS Runoff Storm frequency = 100 yrs Time interval = 1 min Drainage area = 0.702 ac Basin Slope = 0.0% Tc method = User Total precip. = 7.38 in Storm duration = 24 hrs Q (cfs) - 3.00 2.00 1.00 000 99 Thursday, 05 / 18 / 2017 Peak discharge = 2.760 cfs Time to peak = 11.98 hrs Hyd. volume = 5,885 cuft Curve number = 55 Hydraulic length = 0 ft Time of conc. (Tc) = 7.00 min Distribution = Type II Shape factor = 484 basin 9 Hyd. No. 10 -- 100 Year Q (cfs) 3.00 2.00 1.00 0 2 4 6 8 10 12 14 16 18 20 22 24 26 Hyd No. 10 Time (hrs) : Hydrograph Report Hydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc v11 Hyd. No. 11 Time to peak basin 10 Hyd. volume Hydrograph type = SCS Runoff Storm frequency = 100 yrs Time interval = 1 min Drainage area = 0.210 ac Basin Slope = 0.0% Tc method = User Total precip. = 7.38 in Storm duration = 24 hrs Q (cfs) 1.00 0.90 0.80 - - ----- - 0.70 -------- --- 0.60 0.50 0.40 0.30 — _---�-- 0.20 ------ -- - 0.10000 ------ - ------ - 0 2 4 Hyd No. 11 100 Thursday, 05 / 18 / 2017 Peak discharge = 0.784 cfs Time to peak = 12.00 hrs Hyd. volume = 1,803 cuft Curve number = 55 Hydraulic length = 0 ft Time of conc. (Tc) = 10.00 min Distribution = Type II Shape factor = 484 basin 10 Hyd. No. 11 -- 100 Year Q (cfs) Hydrograph Report Hydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc. v11 Hyd. No. 12 combination hydrograph Hydrograph type = Combine Storm frequency = 100 yrs Time interval = 1 min Inflow hyds. = 2, 3, 4, 5 101 Thursday, 05 / 18 / 2017 Peak discharge = 7.635 cfs Time to peak = 11.97 hrs Hyd. volume = 18,367 cuft Contrib. drain. area = 1.132 ac combination hydrograph Q (cfs) Hyd. No. 12 -- 100 Year Q (cfs) 800 8.00 6.00 6.00 4.00 4.00 2.00 2.00 000 0.00 0 2 4 6 8 10 12 14 16 18 20 22 24 26 Hyd No. 12 Hyd No. 2 Hyd No. 3 Hyd No. 4 Time (hrs) Hyd No. 5 Hydrograph Report Hydraflow Hydrographs Extension for AutoCAD® Civil 3D@) 2016 by Autodesk, Inc. v11 Hyd. No. 13 combination hydrograph Hydrograph type = Combine Storm frequency = 100 yrs Time interval = 1 min Inflow hyds. = 6, 7, 8, 9 102 Thursday, 05 / 18 / 2017 Peak discharge = 5.793 cfs Time to peak = 11.97 hirs Hyd. volume = 12,967 cuft Contrib. drain. area = 0.682 ac combination hydrograph Q (Cfs) Q (efs) Hyd. No. 13 100 Year 6.00 6.00 5.00 5.00 4.00 4.00 3.00 3.00 2.00 2.00 ----------- 1.00 1.00 0.00 wL 0.00 0.0 2.0 4.0 6.0 8.0 10.0 12.0 14.0 16.0 18.0 20.0 22.0 — Hyd No. 13 — Hyd No. 6 — Hyd No. 7 — Hyd No. 8 Time (hrs) — Hyd No. 9 103 Hydr®graph Report Hydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc v11 Thursday, 05 / 18 / 2017 Hyd. No. 14 site discharge - pre -detention Hydrograph type = Combine Peak discharge = 13.43 cfs Storm frequency = 100 yrs Time to peak = 11.97 hrs Time interval = 1 min Hyd. volume = 31,335 cuft Inflow hyds. = 12, 13 Contrib. drain. area = 0.000 ac site discharge - pre -detention Q (cfs) Hyd. No. 14 -- 100 Year Q (cfs) 14.00 14.00 12.00 12.00 10.00 10.00 8.00 8.00 6.00 6.00 4.00 4.00 2.00 2.00 0.00 0.00 0 2 4 6 8 10 12 14 16 18 20 22 24 Time (hrs) Hyd No. 14 Hyd No. 12 Hyd No. 13 104 Hydrograph Report Hydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc. v11 Thursday, 05 / 18 / 2017 Hyd. No. 15 UG Detention Hydrograph type = Reservoir Peak discharge = 13.21 cfs Storm frequency = 100 yrs Time to peak = 11.98 hrs Time interval = 1 min Hyd. volume = 30,955 cuft Inflow hyd. No. = 14 - site discharge - pre-detend6ax. Elevation = 872.87 ft Reservoir name = <New Pond> Max. Storage = 6,998 cuft Storage Indication method used. Exffltration extracted from Outflow Q (cfs 14.00 I 12.00 10.00 8.00 6.00 4.00 2.00 UG Detention Hyd. No. 15 -- 100 Year 0.00 0 2 4 Hyd No. 15 Q (cfs) 14.00 12.00 10.00 . 11 4.00 2.00 rni 6 8 10 12 14 16 18 20 22 24 Time (hrs) Hyd No. 14 Total storage used = 6,998 cult 105 Hydrograph Report Hydraflow Hydrographs Extension for AutoCADO Civil 31DO 2016 by Autodesk, Inc. v11 Thursday, 05 / 18 / 2017 Hyd. No. 16 Total post -developed discharge Hydrograph type = Combine Peak discharge = 16.75 cfs Storm frequency = 100 yrs Time to peak = 11.98 hrs Time interval = 1 min Hyd. volume = 38,643 cuft Inflow hyds. = 10, 11, 15 Contrib. drain. area = 0.912 ac Total post -developed discharge Q (Cfs) Hyd. No. 16 100 Year Q (Cfs) 18.00 18.00 15.00 15.00 12.00 12.00 9.00 - 9.00 II 6.00 6.00 3.00 3.00 0.00 0.00 0 2 4 6 8 10 12 14 16 18 20 22 24 26 — Time (hrs) Hyd No. 16 Hyd No. 10 — Hyd No. 11 ® Hyd No. 15 Hydraflow Rainfall Report Hydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc v11 Return Period Intensity -Duration -Frequency Equation Coefficients (FHA) (Yrs) B D E (N/A) 1 629479 131000 0.9022 -------- 2 684261 128000 08789 -------- 3 00000 0.0000 00000 -------- 5 455966 9.9000 07446 -------- 10 653608 11 9000 07891 -------- 25 62.5772 11 3000 07473 ------- 50 541177 100000 06929 -------- 100 495726 9.1000 06545 -------- File name iredell OF Intensity = B / (Tc + D)^E 106 Thursday, 05/18/2017 Return Period Intensity Values (in/hr) (Yrs) 5 min 10 15 20 25 30 35 40 45 50 55 60 1 462 370 310 268 236 211 1 91 1 75 1 61 1 50 140 1.31 2 545 438 368 318 281 252 229 2.10 1 94 1 80 1 68 1 58 3 000 000 0.00 000 000 000 0.00 0.00 000 000 0.00 000 5 610 492 4.16 363 324 293 268 2.48 2.31 217 204 1 93 10 702 572 4.87 425 379 343 314 2.90 269 252 237 224 25 777 636 544 4.77 427 388 356 3.30 308 289 272 258 50 829 679 5.82 513 461 420 387 360 337 317 300 2.85 100 877 719 618 5.46 492 450 416 388 364 343 326 3.10 Tc = time in minutes. Values may exceed 60 u i0 Pine Lake Pre - S orts Com lex\2015-010 Current\2015-010 Civil\E&S and Stormwater Calcs\Mooresville. pcp Storm Rainfall Precipitation Table (in) Distribution 1 -yr 2 -yr 3 -yr 5 -yr 10 -yr 25 -yr 50 -yr 100 -yr SCS 24-hour 280 338 000 418 494 5.87 662 738 SCS 6 -Hr 200 240 000 296 3.48 412 463 515 Huff -1st 000 000 000 000 0.00 0.00 000 000 Huff -2nd 000 000 000 000 000 0.00 000 000 Huff -3rd 000 0.00 000 000 000 000 000 000 Huff -4th 0.00 000 000 000 000 000 000 000 Huff -Indy 000 000 000 000 000 000 0.00 000 Custom 000 000 000 000 000 000 000 000 Hydraflow Table of Contents Hydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2016 by Autodesk, Inc v11 alt1 O.gpw Thursday, 05 / 18 / 2017 Watershed Model Schematic..................................................................................... 1 Hydrograph Return Period Recap............................................................................. 2 1 - Year SummaryReport......................................................................................................................... 3 HydrographReports................................................................................................................... 4 Hydrograph No. 1, SCS Runoff, pre-developed....................................................................... 4 Hydrograph No. 2, SCS Runoff, cb-1....................................................................................... 5 Hydrograph No. 3, SCS Runoff, cb-2....................................................................................... 6 Hydrograph No. 4, SCS Runoff, cb-3....................................................................................... 7 Hydrograph No. 5, SCS Runoff, cb-4....................................................................................... 8 Hydrograph No. 6, SCS Runoff, cb-5....................................................................................... 9 Hydrograph No. 7, SCS Runoff, cb-6..................................................................................... 10 Hydrograph No. 8, SCS Runoff, cb-7..................................................................................... 11 Hydrograph No. 9, SCS Runoff, cb-8..................................................................................... 12 Hydrograph No. 10, SCS Runoff, basin 9.............................................................................. 13 Hydrograph No. 11, SCS Runoff, basin 10............................................................................ 14 Hydrograph No. 12, Combine, combination hydrograph........................................................ 15 Hydrograph No. 13, Combine, combination hydrograph........................................................ 16 Hydrograph No. 14, Combine, site discharge - pre -detention ................................................ 17 Hydrograph No. 15, Reservoir, UG Detention........................................................................ 18 PondReport - <New Pond>............................................................................................... 19 Hydrograph No. 16, Combine, Total post -developed discharge ............................................ 20 2 - Year SummaryReport....................................................................................................................... 21 HydrographReports................................................................................................................. 22 Hydrograph No. 1, SCS Runoff, pre-developed..................................................................... 22 Hydrograph No. 2, SCS Runoff, cb-1..................................................................................... 23 Hydrograph No. 3, SCS Runoff, cb-2..................................................................................... 24 Hydrograph No. 4, SCS Runoff, cb-3..................................................................................... 25 Hydrograph No. 5, SCS Runoff, cb-4..................................................................................... 26 Hydrograph No. 6, SCS Runoff, cb-5..................................................................................... 27 Hydrograph No. 7, SCS Runoff, cb-6..................................................................................... 28 Hydrograph No. 8, SCS Runoff, cb-7..................................................................................... 29 Hydrograph No. 9, SCS Runoff, cb-8..................................................................................... 30 Hydrograph No. 10, SCS Runoff, basin 9.............................................................................. 31 Hydrograph No. 11, SCS Runoff, basin 10............................................................................ 32 Hydrograph No. 12, Combine, combination hydrograph........................................................ 33 Hydrograph No. 13, Combine, combination hydrograph........................................................ 34 Hydrograph No. 14, Combine, site discharge - pre -detention ................................................ 35 Hydrograph No. 15, Reservoir, UG Detention........................................................................ 36 Hydrograph No. 16, Combine, Total post -developed discharge ............................................ 37 10 - Year SummaryReport....................................................................................................................... 38 HydrographReports................................................................................................................. 39 Contents continued... aft10 gpw Hydrograph No. 1, SCS Runoff, pre-developed..................................................................... 39 Hydrograph No. 2, SCS Runoff, cb-1..................................................................................... 40 Hydrograph No. 3, SCS Runoff, cb-2..................................................................................... 41 Hydrograph No. 4, SCS Runoff, cb-3..................................................................................... 42 Hydrograph No. 5, SCS Runoff, cb-4..................................................................................... 43 Hydrograph No. 6, SCS Runoff, cb-5..................................................................................... 44 Hydrograph No. 7, SCS Runoff, cb-6..........................................................................:.......... 45 Hydrograph No. 8, SCS Runoff, cb-7..................................................................................... 46 Hydrograph No. 9, SCS Runoff, cb-8..................................................................................... 47 Hydrograph No. 10, SCS Runoff, basin 9.............................................................................. 48 Hydrograph No. 11, SCS Runoff, basin 10............................................................................ 49 Hydrograph No. 12, Combine, combination hydrograph........................................................ 50 Hydrograph No. 13, Combine, combination hydrograph........................................................ 51 Hydrograph No. 14, Combine, site discharge - pre -detention ................................................ 52 Hydrograph No. 15, Reservoir, UG Detention........................................................................ 53 Hydrograph No. 16, Combine, Total post -developed discharge ............................................ 54 25 - Year SummaryReport....................................................................................................................... 55 HydrographReports................................................................................................................. 56 Hydrograph No. 1, SCS Runoff, pre-developed..................................................................... 56 Hydrograph No. 2, SCS Runoff, cb-1..................................................................................... 57 Hydrograph No. 3, SCS Runoff, cb-2..................................................................................... 58 Hydrograph No. 4, SCS Runoff, cb-3..................................................................................... 59 Hydrograph No. 5, SCS Runoff, cb-4..................................................................................... 60 Hydrograph No. 6, SCS Runoff, cb-5..................................................................................... 61 Hydrograph No. 7, SCS Runoff, cb-6..................................................................................... 62 Hydrograph No. 8, SCS Runoff, cb-7..................................................................................... 63 Hydrograph No. 9, SCS Runoff, cb-8..................................................................................... 64 Hydrograph No. 10, SCS Runoff, basin 9.............................................................................. 65 Hydrograph No. 11, SCS Runoff, basin 10............................................................................ 66 Hydrograph No. 12, Combine, combination hydrograph........................................................ 67 Hydrograph No. 13, Combine, combination hydrograph........................................................ 68 Hydrograph No. 14, Combine, site discharge - pre -detention ................................................ 69 Hydrograph No. 15, Reservoir, UG Detention........................................................................ 70 Hydrograph No. 16, Combine, Total post -developed discharge ............................................ 71 50 - Year SummaryReport....................................................................................................................... 72 HydrographReports................................................................................................................. 73 Hydrograph No. 1, SCS Runoff, pre-developed..................................................................... 73 Hydrograph No. 2, SCS Runoff, cb-1..................................................................................... 74 Hydrograph No. 3, SCS Runoff, cb-2..................................................................................... 75 Hydrograph No. 4, SCS Runoff, cb-3..................................................................................... 76 Hydrograph No. 5, SCS Runoff, cb-4..................................................................................... 77 Hydrograph No. 6, SCS Runoff, cb-5..................................................................................... 78 Hydrograph No. 7, SCS Runoff, cb-6..................................................................................... 79 Hydrograph No. 8, SCS Runoff, cb-7..................................................................................... 80 Hydrograph No. 9, SCS Runoff, cb-8..................................................................................... 81 Hydrograph No. 10, SCS Runoff, basin 9............................................................................... 82 Contents continued... Hydrograph No. Hydrograph No. Hydrograph No. Hydrograph No. Hydrograph No. Hydrograph No. 100 - Year WHO gpw 11, SCS Runoff, basin 10............................................................................ 83 12, Combine, combination hydrograph........................................................ 84 13, Combine, combination hydrograph........................................................ 85 14, Combine, site discharge - pre -detention ................................................ 86 15, Reservoir, UG Detention........................................................................ 87 16, Combine, Total post -developed discharge ............................................ 88 SummaryReport....................................................................................................................... 89 HydrographReports................................................................................................................. 90 Hydrograph No. 1, SCS Runoff, pre-developed..................................................................... 90 Hydrograph No. 2, SCS Runoff, cb-1..................................................................................... 91 Hydrograph No. 3, SCS Runoff, cb-2..................................................................................... 92 Hydrograph No. 4, SCS Runoff, cb-3..................................................................................... 93 Hydrograph No. 5, SCS Runoff, cb-4..................................................................................... 94 Hydrograph No. 6, SCS Runoff, cb-5..................................................................................... 95 Hydrograph No. 7, SCS Runoff, cb-6..................................................................................... 96 Hydrograph No. 8, SCS Runoff, cb-7..................................................................................... 97 Hydrograph No. 9, SCS Runoff, cb-8..................................................................................... 98 Hydrograph No. 10, SCS Runoff, basin 9.............................................................................. 99 Hydrograph No. 11, SCS Runoff, basin 10.......................................................................... 100 Hydrograph No. 12, Combine, combination hydrograph...................................................... 101 Hydrograph No. 13, Combine, combination hydrograph...................................................... 102 Hydrograph No. 14, Combine, site discharge - pre -detention .............................................. 103 Hydrograph No. 15, Reservoir, UG Detention...................................................................... 104 Hydrograph No. 16, Combine, Total post -developed discharge .......................................... 105 OFReport................................................................................................................ 106