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HomeMy WebLinkAbout_STAR Carmel Drainage Report 04-20-17STAR Financial Bank Carmel, IN Drainage Report April 20, 2017 Woolpert STAR Financial Bank – Carmel, IN 2 April 20, 2017 Table of Contents Introduction..............................................................................................................3 Existing Conditions ...................................................................................................3 Pre-Developed Analysis............................................................................................4 Post-Developed Analysis ..........................................................................................4 Storm Sewer.............................................................................................................5 Conclusion................................................................................................................6 Exhibits Exhibit 1 – Existing Drainage Basin Map Exhibit 2 – Proposed Drainage Basin Map Exhibit 3 – FEMA Documentation Exhibit 4 – National Wetlands Inventory Map Appendices Appendix A – Hydrologic Calculations Appendix A1 – NRCS Report, Hamilton County Appendix A2 – Carmel Stormwater Manual Excerpts Appendix B – Hydraulic Calculations Appendix B1 – Existing Peak Discharge Calculations Appendix B2 – Proposed Detention Calculations Appendix B3 – Water Quality Calculations Woolpert STAR Financial Bank – Carmel, IN 3 April 20, 2017 Introduction This report outlines the storm water management system to serve the STAR Financial Bank development in Carmel, IN. The development is located between Rangeline Road and Keystone Parkway on Carmel Drive in Carmel. The STAR Financial Bank development consists of approximately 0.88 acres of commercial development including a bank, drive up ATM and parking. Existing Conditions The approximate 0.88 acre development is situated in Carmel, IN which is located within Hamilton County. As the proposed development is located within Carmel City limits, the project will be governed by Carmel Stormwater Ordinances. The drainage and stormwater facilities have been designed to be in accordance with these ordinances. The lone exception to these ordinances occurs when considering the overall peak discharges for the site. The City of Carmel Engineering Department has approved an exception for this particular development that will allow for the post-developed peak discharges to be the 10-year proposed storm event to match the 2-year existing storm event and the 100-year proposed storm event to match the 10-year storm event. The proposed development is contained within a single watershed which ultimately drains to the City’s stormwater system within the Right-of-Way of East Carmel Drive. The north third of the site currently sheet drains to an inlet that flows to the south along the east property line. There is another inlet that picks up the middle third of the site. This inlet flows to the east and joins up with the northern inlet to leave the site via storm sewer at the southeast corner of the site. With this design, the current drainage pattern of the site will be maintained while regulating post-developed discharges. The FEMA Flood Insurance Rate Map (FIRM) number for the site is 18057C0228G, effective date November 19, 2014, establishes the site in Other Areas, Zone X. These are areas that have been determined to be outside the 500-year floodplain. The above mentioned FEMA FIRM Map can be seen in Exhibit 3. The National Wetland Inventory (NWI) shows the site is currently devoid of any wetlands. An NWI map can be seen in Exhibit 4. The U.S. Department of Agriculture, Soil Conservation Service identifies the watershed to contain two soil classifications. The identified soils are Brookston silty clay loam (Br) with 0 to 2 percent slopes and Crosby silt loam with fine-loamy subsoil (CrA) with 0 to 2 percent slopes. A copy of the Natural Resources Conservation Service (NRCS) can be seen in Appendix A1. Woolpert STAR Financial Bank – Carmel, IN 4 April 20, 2017 Pre-Developed Analysis The existing site to be developed currently consists of a commercial development, a STAR Financial Bank. The site includes a commercial building with a drive-thru and ATM and an outlying parking lot. The site also contains some pervious surfaces, including very limited parking islands. This site sheet drains to a storm sewer system that leaves the site to the south at a manhole within the Right-of-Way of Carmel Drive. The existing and proposed release rates were determined using the SCS Unit Hydrograph Method and the Type II 24hr rainfall distribution. PondPack 10.0 was utilized in order to determine the peak flows. Please refer to Appendix A2 for rainfall depths as taken from the Carmel Stormwater Ordinances. Per the agreement with the City of Carmel Engineering Dept., the proposed development will be held to the following standards: Q10p = Q2e Q100p = Q10e where: Q2e = 2 year discharge rate, existing conditions Q10e = 10 year discharge rate, existing conditions Q10p = 10 year discharge rate, proposed conditions Q100p = 100 year discharge rate, proposed conditions The existing site was analyzed using PondPack and the following peak discharges were found: Table 1: Existing Peak Discharges Basin Contributing Area (Acres) 2-Year Peak Discharge (cfs) 10-Year Peak Discharge (cfs) EX Drainage 0.85 2.61 3.83 Please refer to Exhibit 1 for the existing drainage basins map. Table 2 shows the allowable release rates for the development. The allowable release rates are a combination of the reduced peak discharges, flow through discharges, and direct discharges in the proposed condition. The reduced peak discharges and the flow through discharges will be added to together and the direct discharges will be taken away from the allowable release rate. The underground detention system is set up to over-detain the flow that goes to the system to compensate for the direct discharge flows. Woolpert STAR Financial Bank – Carmel, IN 5 April 20, 2017 Table 2: Proposed Allowable Peak Discharges Basin Contributing Area (Acres) 10-Year Allowable Discharge (cfs) 100-Year Allowable Discharge (cfs) PR Drainage 0.78 2.61 3.83 Post-Developed Analysis The post-developed analysis consisted of the proposed STAR Financial Bank site, including the parking lot and new building. An underground detention system will be used for this site. This underground detention system will regulate the post-developed peak discharges to that of the pre-developed conditions. The underground detention system will be a StormTech System using SC-740 chambers. There will be 16 chambers used for the detention system. This system will have a stone footprint of 703 square feet. This will include 9” of stone below the chamber and 12” of stone above the chambers. This will make the system a total of 51” in depth. All details associated with this system can be found on the detail sheets. In order to achieve the greatest detention volume from the underground system, an outlet control structure will be placed at the outlet pipe engineered to regulate the flows exiting the pond to that no greater than the allowable release rates. The outlet structure will consist of a 9” orifice at the bottom of the structure and a 3” orifice near the top of the structure, all of which will regulate the post-developed conditions to the allowable peak discharge rates. The 3” orifice that controls the 100-year storm will be built with the City of Carmel’s minimum orifice of 6”. This scenario was also model. Table 3 below shows the proposed discharge rates from the underground detention system with the 3” orifice and the 6” orifice: Table 3: Proposed Peak Discharges 10-Year Peak Discharge (cfs) 100-Year Peak Discharge (cfs) 10-Year Allowable Discharge (cfs) 100-Year Allowable Discharge (cfs) PR Drainage 3” Orifice 2.54 3.81 2.61 3.83 PR Drainage 6” Orifice 2.63 4.25 Results: The proposed 10-year and 100-year discharge rates are less than the allowable discharge rates. The above described orifices serve as the combined outlet structure for all storm events. Please refer to Exhibit 2 for the proposed drainage map and Appendix B2 for proposed drainage analysis. Woolpert STAR Financial Bank – Carmel, IN 6 April 20, 2017 Water Quality Per the “City of Carmel Stormwater Technical Standards Manual”, Best Management Practices (BMP’s) must be capable of removing 80% TSS from the stormwater in order to meet water quality standards. In order to meet this standard, Pave Drains are being used to treat the first flush flow rate. Water quality calculations can be seen in Appendix B3. Conclusion The proposed stormwater management system for the STAR Financial Bank development has been designed in order to be in compliance with City of Carmel Stormwater Technical Standards Manual. The system is designed to convey and treat the proposed runoff associated with the proposed development. Therefore, no adverse impacts are anticipated as a result of the proposed development. Exhibit 1 – Existing Drainage Basin Map EX DRAINAGE BASIN AREA: 0.85 AC CN: 97 TC: 8 MINS CKD.DR.DES.DATEPROJECT No:REVISIONDATENo.STAR FINANCIAL BANK140 EAST CARMEL DRIVECARMEL, INDIANA7635 Interactive WaySuite 100Indianapolis, IN 46278317.299.7500FAX: 317.291.5805EX-1 EXISTING DRAINAGE MAPR Know what'sbelow.Callbefore you dig. R R Exhibit 2 – Proposed Drainage Basin Map EAST CARMEL DRIVE PR DRAINAGE BASIN AREA: 0.78 AC CN: 96 TC: 5 MINS DIRECT DISCHARGE BASIN AREA: 0.07 AC CN: 88 TC: 5 MINS CKD.DR.DES.DATEPROJECT No:REVISIONDATENo.STAR FINANCIAL BANK140 EAST CARMEL DRIVECARMEL, INDIANA7635 Interactive WaySuite 100Indianapolis, IN 46278317.299.7500FAX: 317.291.5805PR-1 PROPOSED DRAINAGE MAPR Know what'sbelow.Callbefore you dig. R R Exhibit 3 –FEMA Documentation Exhibit 4 – National Wetlands Inventory Map STAR Financial Bank Carmel Esri, HERE, DeLorme, MapmyIndia, © OpenStreetMap contributors, and theGIS user community Estuarine and Marine Deepwater Estuarine and Marine Wetland Freshwater Emergent Wetland Freshwater Forested/Shrub Wetland Freshwater Pond Lake Other Riverine January 12, 2017 0 0.06 0.120.03 mi 0 0.1 0.20.05 km 1:3,698 This page was produced by the NWI mapperNational Wetlands Inventory (NWI) This map is for general reference only. The US Fish and Wildlife Service is not responsible for the accuracy or currentness of the base data shown on this map. All wetlands related data should be used in accordance with the layer metadata found on the Wetlands Mapper web site. Appendix A – Hydrologic Calculations Appendix A1 – NRCS Soil Report, Boone County Appendix A1 – NRCS Report, Hamilton County United States Department of Agriculture A product of the National Cooperative Soil Survey, a joint effort of the United States Department of Agriculture and other Federal agencies, State agencies including the Agricultural Experiment Stations, and local participants Custom Soil Resource Report for Hamilton County, Indiana Star Bank Carmel Natural Resources Conservation Service December 6, 2016 8 Custom Soil Resource Report Soil Map 44238304423850442387044238904423910442393044239504423970442399044238504423870442389044239104423930442395044239704423990574710 574730 574750 574770 574790 574810 574830 574730 574750 574770 574790 574810 574830 39° 57' 45'' N 86° 7' 30'' W39° 57' 45'' N86° 7' 25'' W39° 57' 40'' N 86° 7' 30'' W39° 57' 40'' N 86° 7' 25'' WN Map projection: Web Mercator Corner coordinates: WGS84 Edge tics: UTM Zone 16N WGS84 0 35 70 140 210Feet 0 10 20 40 60Meters Map Scale: 1:786 if printed on A portrait (8.5" x 11") sheet. Warning: Soil Map may not be valid at this scale. Map Unit Legend Hamilton County, Indiana (IN057) Map Unit Symbol Map Unit Name Acres in AOI Percent of AOI Br Brookston silty clay loam, 0 to 2 percent slopes 0.3 21.4% CrA Crosby silt loam, fine-loamy subsoil, 0 to 2 percent slopes 1.1 78.6% Totals for Area of Interest 1.4 100.0% Map Unit Descriptions The map units delineated on the detailed soil maps in a soil survey represent the soils or miscellaneous areas in the survey area. The map unit descriptions, along with the maps, can be used to determine the composition and properties of a unit. A map unit delineation on a soil map represents an area dominated by one or more major kinds of soil or miscellaneous areas. A map unit is identified and named according to the taxonomic classification of the dominant soils. Within a taxonomic class there are precisely defined limits for the properties of the soils. On the landscape, however, the soils are natural phenomena, and they have the characteristic variability of all natural phenomena. Thus, the range of some observed properties may extend beyond the limits defined for a taxonomic class. Areas of soils of a single taxonomic class rarely, if ever, can be mapped without including areas of other taxonomic classes. Consequently, every map unit is made up of the soils or miscellaneous areas for which it is named and some minor components that belong to taxonomic classes other than those of the major soils. Most minor soils have properties similar to those of the dominant soil or soils in the map unit, and thus they do not affect use and management. These are called noncontrasting, or similar, components. They may or may not be mentioned in a particular map unit description. Other minor components, however, have properties and behavioral characteristics divergent enough to affect use or to require different management. These are called contrasting, or dissimilar, components. They generally are in small areas and could not be mapped separately because of the scale used. Some small areas of strongly contrasting soils or miscellaneous areas are identified by a special symbol on the maps. If included in the database for a given area, the contrasting minor components are identified in the map unit descriptions along with some characteristics of each. A few areas of minor components may not have been observed, and consequently they are not mentioned in the descriptions, especially where the pattern was so complex that it was impractical to make enough observations to identify all the soils and miscellaneous areas on the landscape. The presence of minor components in a map unit in no way diminishes the usefulness or accuracy of the data. The objective of mapping is not to delineate pure taxonomic classes but rather to separate the landscape into landforms or landform segments that have similar use and management requirements. The delineation of such segments on the map provides sufficient information for the development of resource plans. If Custom Soil Resource Report 10 Appendix A1 – NRCS Soil Report, Boone County Appendix A2 - Carmel Stormwater Manual Excerpts Appendix A1 – NRCS Soil Report, Boone County Appendix B – Hydraulic Calculations . Appendix B1 – Existing Peak Discharge Calculations Addlink 10 EX AREA EX OUT Rain Dir: G:\DE\Clients\Hagerman Construction\076910 STAR Bank Carmel\4.0 Disciplines\Civil\Eng\Detention\ Job File: G:\DE\Clients\Hagerman Construction\076910 STAR Bank Carmel\4.0 Disciplines\Civil\Eng\Detention\EX DRAINAGE 04-12-17.PPW ========================== JOB TITLE ========================== Project Date: 4/20/2016 Project Engineer: Canter Project Title: Star Bank Carmel Project Comments: S/N: Bentley PondPack (10.00.027.00) 1:05 PM 4/20/2017 Bentley Systems, Inc. i Table of Contents Table of Contents ********************** MASTER SUMMARY ********************** Watershed....... Master Network Summary ............. 1.01 ****************** DESIGN STORMS SUMMARY ******************* City of Carmel.. Design Storms ...................... 2.01 ********************** TC CALCULATIONS ********************* EX AREA......... Tc Calcs ........................... 3.01 ********************** CN CALCULATIONS ********************* EX AREA......... Runoff CN-Area ..................... 4.01 S/N: Bentley PondPack (10.00.027.00) 1:05 PM 4/20/2017 Bentley Systems, Inc. File.... G:\DE\Clients\Hagerman Construction\076910 STAR Bank Carmel\4.0 Disciplines\Civil\Eng\Detention\EX Drainage 04-12-17.ppw Name.... Watershed Type.... Master Network Summary Page 1.01 MASTER DESIGN STORM SUMMARY Network Storm Collection: City of Carmel Total Depth Rainfall Return Event in Type RNF ID ------------ ------ ---------------- ---------------- 2 2.6600 Synthetic Curve TypeII 24hr 10 3.8300 Synthetic Curve TypeII 24hr 100 6.4600 Synthetic Curve TypeII 24hr MASTER NETWORK SUMMARY SCS Unit Hydrograph Method (*Node=Outfall; +Node=Diversion;) (Trun= HYG Truncation: Blank=None; L=Left; R=Rt; LR=Left&Rt) Max Return HYG Vol Qpeak Qpeak Max WSEL Pond Storage Node ID Type Event ac-ft Trun hrs cfs ft ac-ft ----------------- ---- ------ ---------- -- --------- -------- -------- ------------ EX AREA AREA 2 .164 11.9500 2.61 EX AREA AREA 10 .247 11.9500 3.83 EX AREA AREA 100 .432 11.9500 6.54 *EX OUT JCT 2 .164 11.9500 2.61 *EX OUT JCT 10 .247 11.9500 3.83 *EX OUT JCT 100 .432 11.9500 6.54 S/N: Bentley PondPack (10.00.027.00) 1:05 PM 4/20/2017 Bentley Systems, Inc. File.... G:\DE\Clients\Hagerman Construction\076910 STAR Bank Carmel\4.0 Disciplines\Civil\Eng\Detention\EX Drainage 04-12-17.ppw Name.... City of Carmel Type.... Design Storms Page 2.01 Title... Project Date: 4/20/2016 Project Engineer: Canter Project Title: Star Bank Carmel Project Comments: DESIGN STORMS SUMMARY Design Storm File,ID = City of Carmel Storm Tag Name = 2 ---------------------------------------------------------------------- Data Type, File, ID = Synthetic Storm TypeII 24hr Storm Frequency = 2 yr Total Rainfall Depth= 2.6600 in Duration Multiplier = 1 Resulting Duration = 24.0000 hrs Resulting Start Time= .0000 hrs Step= .1000 hrs End= 24.0000 hrs Storm Tag Name = 10 ---------------------------------------------------------------------- Data Type, File, ID = Synthetic Storm TypeII 24hr Storm Frequency = 10 yr Total Rainfall Depth= 3.8300 in Duration Multiplier = 1 Resulting Duration = 24.0000 hrs Resulting Start Time= .0000 hrs Step= .1000 hrs End= 24.0000 hrs Storm Tag Name = 100 ---------------------------------------------------------------------- Data Type, File, ID = Synthetic Storm TypeII 24hr Storm Frequency = 100 yr Total Rainfall Depth= 6.4600 in Duration Multiplier = 1 Resulting Duration = 24.0000 hrs Resulting Start Time= .0000 hrs Step= .1000 hrs End= 24.0000 hrs S/N: Bentley PondPack (10.00.027.00) 1:05 PM 4/20/2017 Bentley Systems, Inc. File.... G:\DE\Clients\Hagerman Construction\076910 STAR Bank Carmel\4.0 Disciplines\Civil\Eng\Detention\EX Drainage 04-12-17.ppw Name.... EX AREA Type.... Tc Calcs Page 3.01 :::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::: TIME OF CONCENTRATION CALCULATOR :::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::: ------------------------------------------------------------------------ Segment #1: Tc: TR-55 Sheet Mannings n .0120 Hydraulic Length 100.00 ft 2yr, 24hr P 2.6400 in Slope .010000 ft/ft Avg.Velocity .88 ft/sec Segment #1 Time: .0315 hrs ------------------------------------------------------------------------ Segment #2: Tc: TR-55 Shallow Hydraulic Length 500.00 ft Slope .010000 ft/ft Paved Avg.Velocity 2.03 ft/sec Segment #2 Time: .0683 hrs ------------------------------------------------------------------------ Segment #3: Tc: TR-55 Channel Flow Area .3500 sq.ft Wetted Perimeter 2.10 ft Hydraulic Radius .17 ft Slope .002500 ft/ft Mannings n .0130 Hydraulic Length 118.00 ft Avg.Velocity 1.74 ft/sec Segment #3 Time: .0189 hrs ------------------------------------------------------------------------ S/N: Bentley PondPack (10.00.027.00) 1:05 PM 4/20/2017 Bentley Systems, Inc. File.... G:\DE\Clients\Hagerman Construction\076910 STAR Bank Carmel\4.0 Disciplines\Civil\Eng\Detention\EX Drainage 04-12-17.ppw Name.... EX AREA Type.... Tc Calcs Page 3.02 Segment #4: Tc: TR-55 Channel Flow Area .3200 sq.ft Wetted Perimeter 2.10 ft Hydraulic Radius .15 ft Slope .015000 ft/ft Mannings n .0130 Hydraulic Length 186.00 ft Avg.Velocity 4.00 ft/sec Segment #4 Time: .0129 hrs ------------------------------------------------------------------------ ========================= Total Tc: .1316 hrs ========================= S/N: Bentley PondPack (10.00.027.00) 1:05 PM 4/20/2017 Bentley Systems, Inc. File.... G:\DE\Clients\Hagerman Construction\076910 STAR Bank Carmel\4.0 Disciplines\Civil\Eng\Detention\EX Drainage 04-12-17.ppw Name.... EX AREA Type.... Tc Calcs Page 3.03 ------------------------------------------------------------------------ Tc Equations used... ------------------------------------------------------------------------ ==== SCS TR-55 Sheet Flow ============================================== Tc = (.007 * ((n * Lf)**0.8)) / ((P**.5) * (Sf**.4)) Where: Tc = Time of concentration, hrs n = Mannings n Lf = Flow length, ft P = 2yr, 24hr Rain depth, inches Sf = Slope, % ==== SCS TR-55 Shallow Concentrated Flow =============================== Unpaved surface: V = 16.1345 * (Sf**0.5) Paved surface: V = 20.3282 * (Sf**0.5) Tc = (Lf / V) / (3600sec/hr) Where: V = Velocity, ft/sec Sf = Slope, ft/ft Tc = Time of concentration, hrs Lf = Flow length, ft S/N: Bentley PondPack (10.00.027.00) 1:05 PM 4/20/2017 Bentley Systems, Inc. File.... G:\DE\Clients\Hagerman Construction\076910 STAR Bank Carmel\4.0 Disciplines\Civil\Eng\Detention\EX Drainage 04-12-17.ppw Name.... EX AREA Type.... Tc Calcs Page 3.04 ==== SCS Channel Flow ================================================== R = Aq / Wp V = (1.49 * (R**(2/3)) * (Sf**-0.5)) / n Tc = (Lf / V) / (3600sec/hr) Where: R = Hydraulic radius Aq = Flow area, sq.ft. Wp = Wetted perimeter, ft V = Velocity, ft/sec Sf = Slope, ft/ft n = Mannings n Tc = Time of concentration, hrs Lf = Flow length, ft S/N: Bentley PondPack (10.00.027.00) 1:05 PM 4/20/2017 Bentley Systems, Inc. File.... G:\DE\Clients\Hagerman Construction\076910 STAR Bank Carmel\4.0 Disciplines\Civil\Eng\Detention\EX Drainage 04-12-17.ppw Name.... EX AREA Type.... Runoff CN-Area Page 4.01 RUNOFF CURVE NUMBER DATA :::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::: -------------------------------------------------------------------------- Impervious Area Adjustment Adjusted Soil/Surface Description CN acres %C %UC CN -------------------------------- ---- --------- ----- ----- ------ Impervious 98 .820 98.00 Pervious 74 .030 74.00 COMPOSITE AREA & WEIGHTED CN ---> .850 97.15 (97) ::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::: S/N: Bentley PondPack (10.00.027.00) 1:05 PM 4/20/2017 Bentley Systems, Inc. Index of Starting Page Numbers for ID Names Appendix A A-1 ----- C ----- City of Carmel... 2.01 ----- E ----- EX AREA... 3.01, 4.01 ----- W ----- Watershed... 1.01 S/N: Bentley PondPack (10.00.027.00) 1:05 PM 4/20/2017 Bentley Systems, Inc. Appendix B2 – Proposed Detention Calculations Project:STAR Financial Bank Carmel Branch Chamber Model - SC-740Units -Imperial Number of chambers -16Voids in the stone (porosity) - 40 %Base of Stone Elevation -838.92 ftAmount of Stone Above Chambers - 12 in Amount of Stone Below Chambers -9 inArea of system -703 sf Min. Area - 541 sf min. area StormTech SC-740 Cumulative Storage Volumes Height of System Incremental Single Chamber Incremental Total Chamber Incremental Stone Incremental Ch & St Cumulative Chamber Elevation(inches)(cubic feet)(cubic feet)(cubic feet)(cubic feet)(cubic feet)(feet) 51 0.00 0.00 23.43 23.43 1636.23 843.17500.00 0.00 23.43 23.43 1612.79 843.09490.00 0.00 23.43 23.43 1589.36 843.00 48 0.00 0.00 23.43 23.43 1565.93 842.92470.00 0.00 23.43 23.43 1542.49 842.84460.00 0.00 23.43 23.43 1519.06 842.75450.00 0.00 23.43 23.43 1495.63 842.67440.00 0.00 23.43 23.43 1472.19 842.59430.00 0.00 23.43 23.43 1448.76 842.50420.00 0.00 23.43 23.43 1425.33 842.42410.00 0.00 23.43 23.43 1401.89 842.34400.00 0.00 23.43 23.43 1378.46 842.25390.05 0.88 23.08 23.96 1355.03 842.17380.16 2.61 22.39 25.00 1331.07 842.09 37 0.28 4.51 21.63 26.14 1306.07 842.00360.60 9.66 19.57 29.23 1279.93 841.92350.80 12.83 18.30 31.13 1250.70 841.84 34 0.95 15.21 17.35 32.56 1219.57 841.75331.07 17.19 16.56 33.75 1187.01 841.67321.18 18.89 15.88 34.77 1153.26 841.59 31 1.27 20.25 15.33 35.58 1118.49 841.50301.36 21.68 14.76 36.44 1082.91 841.42291.45 23.27 14.13 37.39 1046.47 841.34 28 1.52 24.40 13.68 38.07 1009.08 841.25271.58 25.32 13.31 38.62 971.01 841.17261.64 26.28 12.92 39.20 932.38 841.09 25 1.70 27.19 12.56 39.75 893.18 841.00241.75 28.05 12.21 40.26 853.43 840.92231.80 28.85 11.90 40.74 813.17 840.84221.85 29.68 11.56 41.24 772.43 840.75211.89 30.29 11.32 41.61 731.19 840.67201.93 30.94 11.06 42.00 689.58 840.59191.97 31.60 10.79 42.39 647.58 840.50182.01 32.16 10.57 42.73 605.19 840.42172.04 32.72 10.35 43.07 562.46 840.34162.07 33.20 10.15 43.35 519.40 840.25152.10 33.68 9.96 43.64 476.04 840.17 14 2.13 34.11 9.79 43.90 432.40 840.09132.15 34.46 9.65 44.11 388.50 840.00122.18 34.83 9.50 44.33 344.39 839.92 11 2.20 35.17 9.36 44.54 300.06 839.84102.21 35.32 9.31 44.62 255.52 839.7590.00 0.00 23.43 23.43 210.90 839.67 8 0.00 0.00 23.43 23.43 187.47 839.5970.00 0.00 23.43 23.43 164.03 839.5060.00 0.00 23.43 23.43 140.60 839.42 5 0.00 0.00 23.43 23.43 117.17 839.3440.00 0.00 23.43 23.43 93.73 839.2530.00 0.00 23.43 23.43 70.30 839.1720.00 0.00 23.43 23.43 46.87 839.0910.00 0.00 23.43 23.43 23.43 839.00 Include Perimeter Stone in Calculations Click Here for Metric OUTLET A d d lin k 1 0 Addlink 20 PR AREA DIRECT DISCHARGE STORM TECH PR OUT Rain Dir: G:\DE\Clients\Hagerman Construction\076910 STAR Bank Carmel\4.0 Disciplines\Civil\Eng\Detention\ Job File: G:\DE\Clients\Hagerman Construction\076910 STAR Bank Carmel\4.0 Disciplines\Civil\Eng\Detention\PR DRAINAGE 04-12-17.PPW ========================== JOB TITLE ========================== Project Date: 4/20/2017 Project Engineer: Canter Project Title: Star Bank Carmel Project Comments: S/N: Bentley PondPack (10.00.027.00) 1:19 PM 4/20/2017 Bentley Systems, Inc. i Table of Contents Table of Contents ********************** MASTER SUMMARY ********************** Watershed....... Master Network Summary ............. 1.01 ****************** DESIGN STORMS SUMMARY ******************* City of Carmel.. Design Storms ...................... 2.01 ********************** TC CALCULATIONS ********************* DIRECT DISCHARGE Tc Calcs ........................... 3.01 PR AREA......... Tc Calcs ........................... 3.03 ********************** CN CALCULATIONS ********************* DIRECT DISCHARGE Runoff CN-Area ..................... 4.01 PR AREA......... Runoff CN-Area ..................... 4.02 *********************** TIME VS.ELEV *********************** STORM TECH OUT 100 Time-Elev .......................... 5.01 ************************ TIME VS.VOL *********************** STORM TECH OUT 100 Time vs. Volume .................... 6.01 S/N: Bentley PondPack (10.00.027.00) 1:19 PM 4/20/2017 Bentley Systems, Inc. Table of Contents ii Table of Contents (continued) *********************** POND VOLUMES *********************** STORM TECH...... Vol: Elev-Area ..................... 7.01 ******************** OUTLET STRUCTURES ********************* CONTROL STRUCTUR Outlet Input Data .................. 8.01 S/N: Bentley PondPack (10.00.027.00) 1:19 PM 4/20/2017 Bentley Systems, Inc. File.... G:\DE\Clients\Hagerman Construction\076910 STAR Bank Carmel\4.0 Disciplines\Civil\Eng\Detention\PR Drainage 04-12-17.ppw Name.... Watershed Type.... Master Network Summary Page 1.01 MASTER DESIGN STORM SUMMARY Network Storm Collection: City of Carmel Total Depth Rainfall Return Event in Type RNF ID ------------ ------ ---------------- ---------------- 10 3.8300 Synthetic Curve TypeII 24hr 100 6.4600 Synthetic Curve TypeII 24hr MASTER NETWORK SUMMARY SCS Unit Hydrograph Method (*Node=Outfall; +Node=Diversion;) (Trun= HYG Truncation: Blank=None; L=Left; R=Rt; LR=Left&Rt) Max Return HYG Vol Qpeak Qpeak Max WSEL Pond Storage Node ID Type Event ac-ft Trun hrs cfs ft ac-ft ----------------- ---- ------ ---------- -- --------- -------- -------- ------------ DIRECT DISCHARGE AREA 10 .015 11.9000 .27 DIRECT DISCHARGE AREA 100 .030 11.9000 .52 PR AREA AREA 10 .219 11.9000 3.69 PR AREA AREA 100 .389 11.9000 6.37 *PR OUT JCT 10 .234 12.0000 2.54 *PR OUT JCT 100 .418 12.0000 3.81 STORM TECH IN POND 10 .219 11.9000 3.69 STORM TECH IN POND 100 .389 11.9000 6.37 STORM TECH OUT POND 10 .219 12.0500 2.33 841.74 .037 STORM TECH OUT POND 100 .389 12.0500 3.48 842.91 .075 S/N: Bentley PondPack (10.00.027.00) 1:19 PM 4/20/2017 Bentley Systems, Inc. File.... G:\DE\Clients\Hagerman Construction\076910 STAR Bank Carmel\4.0 Disciplines\Civil\Eng\Detention\PR Drainage 04-12-17.ppw Name.... City of Carmel Type.... Design Storms Page 2.01 Title... Project Date: 4/20/2017 Project Engineer: Canter Project Title: Star Bank Carmel Project Comments: DESIGN STORMS SUMMARY Design Storm File,ID = City of Carmel Storm Tag Name = 10 ---------------------------------------------------------------------- Data Type, File, ID = Synthetic Storm TypeII 24hr Storm Frequency = 10 yr Total Rainfall Depth= 3.8300 in Duration Multiplier = 1 Resulting Duration = 24.0000 hrs Resulting Start Time= .0000 hrs Step= .1000 hrs End= 24.0000 hrs Storm Tag Name = 100 ---------------------------------------------------------------------- Data Type, File, ID = Synthetic Storm TypeII 24hr Storm Frequency = 100 yr Total Rainfall Depth= 6.4600 in Duration Multiplier = 1 Resulting Duration = 24.0000 hrs Resulting Start Time= .0000 hrs Step= .1000 hrs End= 24.0000 hrs S/N: Bentley PondPack (10.00.027.00) 1:19 PM 4/20/2017 Bentley Systems, Inc. File.... G:\DE\Clients\Hagerman Construction\076910 STAR Bank Carmel\4.0 Disciplines\Civil\Eng\Detention\PR Drainage 04-12-17.ppw Name.... DIRECT DISCHARGE Type.... Tc Calcs Page 3.01 :::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::: TIME OF CONCENTRATION CALCULATOR :::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::: ------------------------------------------------------------------------ Segment #1: Tc: TR-55 Sheet Mannings n .0120 Hydraulic Length 45.00 ft 2yr, 24hr P 2.6600 in Slope .072000 ft/ft Avg.Velocity 1.66 ft/sec Segment #1 Time: .0075 hrs ------------------------------------------------------------------------ ========================= Total Tc: .0075 hrs Calculated Tc < Min.Tc: Use Minimum Tc... Use Tc = .0833 hrs ========================= S/N: Bentley PondPack (10.00.027.00) 1:19 PM 4/20/2017 Bentley Systems, Inc. File.... G:\DE\Clients\Hagerman Construction\076910 STAR Bank Carmel\4.0 Disciplines\Civil\Eng\Detention\PR Drainage 04-12-17.ppw Name.... DIRECT DISCHARGE Type.... Tc Calcs Page 3.02 ------------------------------------------------------------------------ Tc Equations used... ------------------------------------------------------------------------ ==== SCS TR-55 Sheet Flow ============================================== Tc = (.007 * ((n * Lf)**0.8)) / ((P**.5) * (Sf**.4)) Where: Tc = Time of concentration, hrs n = Mannings n Lf = Flow length, ft P = 2yr, 24hr Rain depth, inches Sf = Slope, % S/N: Bentley PondPack (10.00.027.00) 1:19 PM 4/20/2017 Bentley Systems, Inc. File.... G:\DE\Clients\Hagerman Construction\076910 STAR Bank Carmel\4.0 Disciplines\Civil\Eng\Detention\PR Drainage 04-12-17.ppw Name.... PR AREA Type.... Tc Calcs Page 3.03 :::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::: TIME OF CONCENTRATION CALCULATOR :::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::: ------------------------------------------------------------------------ Segment #1: Tc: TR-55 Sheet Mannings n .0120 Hydraulic Length 100.00 ft 2yr, 24hr P 2.6600 in Slope .020000 ft/ft Avg.Velocity 1.17 ft/sec Segment #1 Time: .0237 hrs ------------------------------------------------------------------------ Segment #2: Tc: TR-55 Shallow Hydraulic Length 43.00 ft Slope .020000 ft/ft Paved Avg.Velocity 2.87 ft/sec Segment #2 Time: .0042 hrs ------------------------------------------------------------------------ Segment #3: Tc: TR-55 Channel Flow Area .7900 sq.ft Wetted Perimeter 3.14 ft Hydraulic Radius .25 ft Slope .003300 ft/ft Mannings n .0130 Hydraulic Length 118.00 ft Avg.Velocity 2.62 ft/sec Segment #3 Time: .0125 hrs ------------------------------------------------------------------------ S/N: Bentley PondPack (10.00.027.00) 1:19 PM 4/20/2017 Bentley Systems, Inc. File.... G:\DE\Clients\Hagerman Construction\076910 STAR Bank Carmel\4.0 Disciplines\Civil\Eng\Detention\PR Drainage 04-12-17.ppw Name.... PR AREA Type.... Tc Calcs Page 3.04 Segment #4: Tc: TR-55 Channel Flow Area .7900 sq.ft Wetted Perimeter 3.14 ft Hydraulic Radius .25 ft Slope .003300 ft/ft Mannings n .0130 Hydraulic Length 72.00 ft Avg.Velocity 2.62 ft/sec Segment #4 Time: .0076 hrs ------------------------------------------------------------------------ ========================= Total Tc: .0480 hrs Calculated Tc < Min.Tc: Use Minimum Tc... Use Tc = .0833 hrs ========================= S/N: Bentley PondPack (10.00.027.00) 1:19 PM 4/20/2017 Bentley Systems, Inc. File.... G:\DE\Clients\Hagerman Construction\076910 STAR Bank Carmel\4.0 Disciplines\Civil\Eng\Detention\PR Drainage 04-12-17.ppw Name.... PR AREA Type.... Tc Calcs Page 3.05 ------------------------------------------------------------------------ Tc Equations used... ------------------------------------------------------------------------ ==== SCS TR-55 Sheet Flow ============================================== Tc = (.007 * ((n * Lf)**0.8)) / ((P**.5) * (Sf**.4)) Where: Tc = Time of concentration, hrs n = Mannings n Lf = Flow length, ft P = 2yr, 24hr Rain depth, inches Sf = Slope, % ==== SCS TR-55 Shallow Concentrated Flow =============================== Unpaved surface: V = 16.1345 * (Sf**0.5) Paved surface: V = 20.3282 * (Sf**0.5) Tc = (Lf / V) / (3600sec/hr) Where: V = Velocity, ft/sec Sf = Slope, ft/ft Tc = Time of concentration, hrs Lf = Flow length, ft S/N: Bentley PondPack (10.00.027.00) 1:19 PM 4/20/2017 Bentley Systems, Inc. File.... G:\DE\Clients\Hagerman Construction\076910 STAR Bank Carmel\4.0 Disciplines\Civil\Eng\Detention\PR Drainage 04-12-17.ppw Name.... PR AREA Type.... Tc Calcs Page 3.06 ==== SCS Channel Flow ================================================== R = Aq / Wp V = (1.49 * (R**(2/3)) * (Sf**-0.5)) / n Tc = (Lf / V) / (3600sec/hr) Where: R = Hydraulic radius Aq = Flow area, sq.ft. Wp = Wetted perimeter, ft V = Velocity, ft/sec Sf = Slope, ft/ft n = Mannings n Tc = Time of concentration, hrs Lf = Flow length, ft S/N: Bentley PondPack (10.00.027.00) 1:19 PM 4/20/2017 Bentley Systems, Inc. File.... G:\DE\Clients\Hagerman Construction\076910 STAR Bank Carmel\4.0 Disciplines\Civil\Eng\Detention\PR Drainage 04-12-17.ppw Name.... DIRECT DISCHARGE Type.... Runoff CN-Area Page 4.01 RUNOFF CURVE NUMBER DATA :::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::: -------------------------------------------------------------------------- Impervious Area Adjustment Adjusted Soil/Surface Description CN acres %C %UC CN -------------------------------- ---- --------- ----- ----- ------ Impervious 98 .020 98.00 Pervious 84 .050 84.00 COMPOSITE AREA & WEIGHTED CN ---> .070 88.00 (88) ::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::: S/N: Bentley PondPack (10.00.027.00) 1:19 PM 4/20/2017 Bentley Systems, Inc. File.... G:\DE\Clients\Hagerman Construction\076910 STAR Bank Carmel\4.0 Disciplines\Civil\Eng\Detention\PR Drainage 04-12-17.ppw Name.... PR AREA Type.... Runoff CN-Area Page 4.02 RUNOFF CURVE NUMBER DATA :::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::: -------------------------------------------------------------------------- Impervious Area Adjustment Adjusted Soil/Surface Description CN acres %C %UC CN -------------------------------- ---- --------- ----- ----- ------ Impervious 98 .690 98.00 Pervious 84 .090 84.00 COMPOSITE AREA & WEIGHTED CN ---> .780 96.38 (96) ::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::: S/N: Bentley PondPack (10.00.027.00) 1:19 PM 4/20/2017 Bentley Systems, Inc. Storm... TypeII 24hr Tag: 100 File.... G:\DE\Clients\Hagerman Construction\076910 STAR Bank Carmel\4.0 Disciplines\Civil\Eng\Detention\PR Drainage 04-12-17.ppw Name.... STORM TECH OUT Tag: 100 Event: 100 yr Type.... Time-Elev Page 5.01 TIME vs. ELEVATION (ft) Time | Output Time increment = .0500 hrs hrs | Time on left represents time for first value in each row. ---------|-------------------------------------------------------------- 1.3000 | 838.92 838.93 838.94 838.97 839.00 1.5500 | 839.02 839.02 839.02 839.02 839.03 1.8000 | 839.03 839.03 839.03 839.03 839.03 2.0500 | 839.03 839.03 839.03 839.04 839.04 2.3000 | 839.04 839.04 839.04 839.04 839.04 2.5500 | 839.04 839.04 839.04 839.05 839.05 2.8000 | 839.05 839.05 839.05 839.05 839.05 3.0500 | 839.05 839.05 839.05 839.05 839.05 3.3000 | 839.06 839.06 839.06 839.06 839.06 3.5500 | 839.06 839.06 839.06 839.06 839.06 3.8000 | 839.06 839.06 839.06 839.06 839.07 4.0500 | 839.07 839.07 839.07 839.07 839.07 4.3000 | 839.07 839.07 839.07 839.07 839.07 4.5500 | 839.07 839.08 839.08 839.08 839.08 4.8000 | 839.08 839.08 839.08 839.08 839.08 5.0500 | 839.08 839.08 839.08 839.09 839.09 5.3000 | 839.09 839.09 839.09 839.09 839.09 5.5500 | 839.09 839.09 839.09 839.09 839.09 5.8000 | 839.10 839.10 839.10 839.10 839.10 6.0500 | 839.10 839.10 839.10 839.10 839.10 6.3000 | 839.10 839.10 839.10 839.11 839.11 6.5500 | 839.11 839.11 839.11 839.11 839.11 6.8000 | 839.11 839.11 839.11 839.11 839.11 7.0500 | 839.12 839.12 839.12 839.12 839.12 7.3000 | 839.12 839.12 839.12 839.12 839.12 7.5500 | 839.12 839.12 839.12 839.13 839.13 7.8000 | 839.13 839.13 839.13 839.13 839.13 8.0500 | 839.13 839.13 839.13 839.13 839.14 8.3000 | 839.14 839.14 839.14 839.15 839.15 8.5500 | 839.15 839.15 839.16 839.16 839.16 8.8000 | 839.17 839.17 839.17 839.17 839.18 9.0500 | 839.18 839.18 839.19 839.19 839.19 9.3000 | 839.19 839.19 839.19 839.19 839.19 9.5500 | 839.19 839.19 839.20 839.20 839.20 9.8000 | 839.20 839.21 839.21 839.22 839.22 10.0500 | 839.23 839.23 839.24 839.24 839.25 10.3000 | 839.25 839.26 839.27 839.27 839.28 10.5500 | 839.29 839.29 839.30 839.31 839.32 10.8000 | 839.33 839.34 839.35 839.36 839.38 11.0500 | 839.39 839.40 839.42 839.44 839.46 11.3000 | 839.48 839.50 839.53 839.56 839.58 11.5500 | 839.64 839.76 839.97 840.28 840.71 11.8000 | 841.23 841.68 842.09 842.51 842.81 S/N: Bentley PondPack (10.00.027.00) 1:19 PM 4/20/2017 Bentley Systems, Inc. Storm... TypeII 24hr Tag: 100 File.... G:\DE\Clients\Hagerman Construction\076910 STAR Bank Carmel\4.0 Disciplines\Civil\Eng\Detention\PR Drainage 04-12-17.ppw Name.... STORM TECH OUT Tag: 100 Event: 100 yr Type.... Time-Elev Page 5.02 TIME vs. ELEVATION (ft) Time | Output Time increment = .0500 hrs hrs | Time on left represents time for first value in each row. ---------|-------------------------------------------------------------- 12.0500 | 842.91 842.79 842.54 842.28 842.04 12.3000 | 841.81 841.61 841.31 840.92 840.61 12.5500 | 840.36 840.16 840.00 839.88 839.78 12.8000 | 839.71 839.65 839.60 839.55 839.52 13.0500 | 839.49 839.46 839.44 839.42 839.41 13.3000 | 839.39 839.38 839.37 839.36 839.35 13.5500 | 839.34 839.33 839.32 839.31 839.30 13.8000 | 839.30 839.29 839.28 839.28 839.27 14.0500 | 839.27 839.26 839.25 839.25 839.25 14.3000 | 839.24 839.24 839.24 839.23 839.23 14.5500 | 839.23 839.23 839.22 839.22 839.22 14.8000 | 839.22 839.22 839.21 839.21 839.21 15.0500 | 839.21 839.21 839.20 839.20 839.20 15.3000 | 839.20 839.20 839.19 839.19 839.19 15.5500 | 839.19 839.18 839.18 839.18 839.18 15.8000 | 839.18 839.17 839.17 839.17 839.17 16.0500 | 839.17 839.16 839.16 839.16 839.16 16.3000 | 839.16 839.16 839.16 839.16 839.15 16.5500 | 839.15 839.15 839.15 839.15 839.15 16.8000 | 839.15 839.15 839.15 839.15 839.15 17.0500 | 839.15 839.15 839.14 839.14 839.14 17.3000 | 839.14 839.14 839.14 839.14 839.14 17.5500 | 839.14 839.14 839.14 839.14 839.14 17.8000 | 839.13 839.13 839.13 839.13 839.13 18.0500 | 839.13 839.13 839.13 839.13 839.13 18.3000 | 839.13 839.13 839.13 839.12 839.12 18.5500 | 839.12 839.12 839.12 839.12 839.12 18.8000 | 839.12 839.12 839.12 839.12 839.12 19.0500 | 839.12 839.12 839.11 839.11 839.11 19.3000 | 839.11 839.11 839.11 839.11 839.11 19.5500 | 839.11 839.11 839.11 839.11 839.11 19.8000 | 839.10 839.10 839.10 839.10 839.10 20.0500 | 839.10 839.10 839.10 839.10 839.10 20.3000 | 839.10 839.10 839.10 839.10 839.10 20.5500 | 839.10 839.10 839.10 839.10 839.10 20.8000 | 839.10 839.10 839.10 839.10 839.10 21.0500 | 839.10 839.10 839.10 839.10 839.09 21.3000 | 839.09 839.09 839.09 839.09 839.09 21.5500 | 839.09 839.09 839.09 839.09 839.09 21.8000 | 839.09 839.09 839.09 839.09 839.09 22.0500 | 839.09 839.09 839.09 839.09 839.09 22.3000 | 839.09 839.09 839.09 839.09 839.09 22.5500 | 839.09 839.09 839.09 839.09 839.09 22.8000 | 839.09 839.09 839.09 839.09 839.09 S/N: Bentley PondPack (10.00.027.00) 1:19 PM 4/20/2017 Bentley Systems, Inc. Storm... TypeII 24hr Tag: 100 File.... G:\DE\Clients\Hagerman Construction\076910 STAR Bank Carmel\4.0 Disciplines\Civil\Eng\Detention\PR Drainage 04-12-17.ppw Name.... STORM TECH OUT Tag: 100 Event: 100 yr Type.... Time-Elev Page 5.03 TIME vs. ELEVATION (ft) Time | Output Time increment = .0500 hrs hrs | Time on left represents time for first value in each row. ---------|-------------------------------------------------------------- 23.0500 | 839.09 839.09 839.09 839.09 839.09 23.3000 | 839.09 839.09 839.09 839.09 839.09 23.5500 | 839.09 839.09 839.09 839.09 839.09 23.8000 | 839.09 839.09 839.09 839.09 839.09 24.0500 | 839.08 839.07 839.06 839.05 839.04 24.3000 | 839.04 839.03 839.03 839.03 839.03 24.5500 | 839.02 839.02 S/N: Bentley PondPack (10.00.027.00) 1:19 PM 4/20/2017 Bentley Systems, Inc. Storm... TypeII 24hr Tag: 100 File.... G:\DE\Clients\Hagerman Construction\076910 STAR Bank Carmel\4.0 Disciplines\Civil\Eng\Detention\PR Drainage 04-12-17.ppw Name.... STORM TECH OUT Tag: 100 Event: 100 yr Type.... Time vs. Volume Page 6.01 TIME vs. VOLUME (ac-ft) Time | Output Time increment = .0500 hrs hrs | Time on left represents time for first value in each row. ---------|-------------------------------------------------------------- 1.3000 | .000 .000 .000 .000 .000 1.5500 | .000 .000 .000 .000 .000 1.8000 | .000 .000 .000 .000 .000 2.0500 | .000 .000 .000 .000 .000 2.3000 | .000 .000 .000 .000 .000 2.5500 | .000 .000 .000 .000 .000 2.8000 | .000 .000 .000 .000 .000 3.0500 | .000 .000 .000 .000 .000 3.3000 | .000 .000 .000 .000 .000 3.5500 | .000 .000 .000 .000 .000 3.8000 | .000 .000 .000 .000 .000 4.0500 | .000 .000 .000 .000 .000 4.3000 | .000 .000 .000 .000 .000 4.5500 | .000 .000 .000 .000 .000 4.8000 | .000 .000 .000 .000 .000 5.0500 | .000 .000 .000 .000 .000 5.3000 | .000 .000 .000 .000 .000 5.5500 | .000 .000 .000 .000 .000 5.8000 | .000 .000 .000 .000 .000 6.0500 | .000 .000 .000 .000 .000 6.3000 | .000 .000 .000 .000 .000 6.5500 | .000 .000 .000 .000 .000 6.8000 | .000 .000 .000 .000 .000 7.0500 | .000 .000 .000 .000 .000 7.3000 | .000 .000 .000 .000 .000 7.5500 | .000 .000 .000 .000 .000 7.8000 | .000 .000 .000 .000 .000 8.0500 | .000 .000 .000 .000 .000 8.3000 | .000 .000 .000 .000 .000 8.5500 | .000 .000 .000 .000 .000 8.8000 | .000 .000 .000 .000 .000 9.0500 | .000 .000 .000 .000 .000 9.3000 | .000 .000 .000 .000 .000 9.5500 | .000 .000 .000 .000 .000 9.8000 | .000 .000 .000 .000 .000 10.0500 | .000 .000 .000 .000 .000 10.3000 | .000 .000 .000 .000 .000 10.5500 | .000 .000 .001 .001 .001 10.8000 | .001 .001 .001 .001 .001 11.0500 | .001 .001 .001 .001 .001 11.3000 | .001 .001 .001 .001 .001 11.5500 | .002 .002 .004 .007 .013 11.8000 | .024 .035 .047 .061 .071 S/N: Bentley PondPack (10.00.027.00) 1:19 PM 4/20/2017 Bentley Systems, Inc. Storm... TypeII 24hr Tag: 100 File.... G:\DE\Clients\Hagerman Construction\076910 STAR Bank Carmel\4.0 Disciplines\Civil\Eng\Detention\PR Drainage 04-12-17.ppw Name.... STORM TECH OUT Tag: 100 Event: 100 yr Type.... Time vs. Volume Page 6.02 TIME vs. VOLUME (ac-ft) Time | Output Time increment = .0500 hrs hrs | Time on left represents time for first value in each row. ---------|-------------------------------------------------------------- 12.0500 | .075 .070 .062 .053 .046 12.3000 | .039 .033 .026 .017 .012 12.5500 | .008 .006 .004 .003 .003 12.8000 | .002 .002 .002 .001 .001 13.0500 | .001 .001 .001 .001 .001 13.3000 | .001 .001 .001 .001 .001 13.5500 | .001 .001 .001 .001 .001 13.8000 | .001 .000 .000 .000 .000 14.0500 | .000 .000 .000 .000 .000 14.3000 | .000 .000 .000 .000 .000 14.5500 | .000 .000 .000 .000 .000 14.8000 | .000 .000 .000 .000 .000 15.0500 | .000 .000 .000 .000 .000 15.3000 | .000 .000 .000 .000 .000 15.5500 | .000 .000 .000 .000 .000 15.8000 | .000 .000 .000 .000 .000 16.0500 | .000 .000 .000 .000 .000 16.3000 | .000 .000 .000 .000 .000 16.5500 | .000 .000 .000 .000 .000 16.8000 | .000 .000 .000 .000 .000 17.0500 | .000 .000 .000 .000 .000 17.3000 | .000 .000 .000 .000 .000 17.5500 | .000 .000 .000 .000 .000 17.8000 | .000 .000 .000 .000 .000 18.0500 | .000 .000 .000 .000 .000 18.3000 | .000 .000 .000 .000 .000 18.5500 | .000 .000 .000 .000 .000 18.8000 | .000 .000 .000 .000 .000 19.0500 | .000 .000 .000 .000 .000 19.3000 | .000 .000 .000 .000 .000 19.5500 | .000 .000 .000 .000 .000 19.8000 | .000 .000 .000 .000 .000 20.0500 | .000 .000 .000 .000 .000 20.3000 | .000 .000 .000 .000 .000 20.5500 | .000 .000 .000 .000 .000 20.8000 | .000 .000 .000 .000 .000 21.0500 | .000 .000 .000 .000 .000 21.3000 | .000 .000 .000 .000 .000 21.5500 | .000 .000 .000 .000 .000 21.8000 | .000 .000 .000 .000 .000 22.0500 | .000 .000 .000 .000 .000 22.3000 | .000 .000 .000 .000 .000 22.5500 | .000 .000 .000 .000 .000 22.8000 | .000 .000 .000 .000 .000 S/N: Bentley PondPack (10.00.027.00) 1:19 PM 4/20/2017 Bentley Systems, Inc. Storm... TypeII 24hr Tag: 100 File.... G:\DE\Clients\Hagerman Construction\076910 STAR Bank Carmel\4.0 Disciplines\Civil\Eng\Detention\PR Drainage 04-12-17.ppw Name.... STORM TECH OUT Tag: 100 Event: 100 yr Type.... Time vs. Volume Page 6.03 TIME vs. VOLUME (ac-ft) Time | Output Time increment = .0500 hrs hrs | Time on left represents time for first value in each row. ---------|-------------------------------------------------------------- 23.0500 | .000 .000 .000 .000 .000 23.3000 | .000 .000 .000 .000 .000 23.5500 | .000 .000 .000 .000 .000 23.8000 | .000 .000 .000 .000 .000 24.0500 | .000 .000 .000 .000 .000 24.3000 | .000 .000 .000 .000 .000 24.5500 | .000 .000 S/N: Bentley PondPack (10.00.027.00) 1:19 PM 4/20/2017 Bentley Systems, Inc. File.... G:\DE\Clients\Hagerman Construction\076910 STAR Bank Carmel\4.0 Disciplines\Civil\Eng\Detention\PR Drainage 04-12-17.ppw Name.... STORM TECH Type.... Vol: Elev-Area Page 7.01 Elevation Planimeter Area A1+A2+sqr(A1*A2) Volume Volume Sum (ft) (sq.in) (acres) (acres) (ac-ft) (ac-ft) ------------------------------------------------------------------------ 838.92 ----- .0000 .0000 .000 .000 839.00 ----- .0010 .0010 .000 .000 839.09 ----- .0010 .0030 .000 .000 839.17 ----- .0020 .0044 .000 .000 839.25 ----- .0020 .0060 .000 .000 839.34 ----- .0030 .0074 .000 .001 839.42 ----- .0030 .0090 .000 .001 839.50 ----- .0040 .0105 .000 .001 839.59 ----- .0040 .0120 .000 .001 839.67 ----- .0050 .0135 .000 .002 839.75 ----- .0060 .0165 .000 .002 839.84 ----- .0070 .0195 .001 .003 839.92 ----- .0080 .0225 .001 .003 840.00 ----- .0090 .0255 .001 .004 840.09 ----- .0100 .0285 .001 .005 840.17 ----- .0110 .0315 .001 .006 840.25 ----- .0120 .0345 .001 .007 840.34 ----- .0130 .0375 .001 .008 840.42 ----- .0140 .0405 .001 .009 840.50 ----- .0150 .0435 .001 .010 840.59 ----- .0160 .0465 .001 .012 840.67 ----- .0170 .0495 .001 .013 840.75 ----- .0180 .0525 .001 .014 840.84 ----- .0190 .0555 .002 .016 840.92 ----- .0200 .0585 .002 .017 841.00 ----- .0210 .0615 .002 .019 841.09 ----- .0210 .0630 .002 .021 841.17 ----- .0220 .0645 .002 .023 841.25 ----- .0230 .0675 .002 .025 841.34 ----- .0240 .0705 .002 .027 841.42 ----- .0250 .0735 .002 .029 841.50 ----- .0260 .0765 .002 .031 841.59 ----- .0260 .0780 .002 .033 841.67 ----- .0270 .0795 .002 .035 841.75 ----- .0280 .0825 .002 .037 841.84 ----- .0290 .0855 .003 .040 841.92 ----- .0290 .0870 .002 .042 842.00 ----- .0300 .0885 .002 .045 842.09 ----- .0310 .0915 .003 .047 842.17 ----- .0310 .0930 .002 .050 842.25 ----- .0320 .0945 .003 .052 842.34 ----- .0320 .0960 .003 .055 842.42 ----- .0330 .0975 .003 .058 842.50 ----- .0330 .0990 .003 .060 S/N: Bentley PondPack (10.00.027.00) 1:19 PM 4/20/2017 Bentley Systems, Inc. File.... G:\DE\Clients\Hagerman Construction\076910 STAR Bank Carmel\4.0 Disciplines\Civil\Eng\Detention\PR Drainage 04-12-17.ppw Name.... STORM TECH Type.... Vol: Elev-Area Page 7.02 Elevation Planimeter Area A1+A2+sqr(A1*A2) Volume Volume Sum (ft) (sq.in) (acres) (acres) (ac-ft) (ac-ft) ------------------------------------------------------------------------ 842.59 ----- .0340 .1005 .003 .063 842.67 ----- .0340 .1020 .003 .066 842.75 ----- .0350 .1035 .003 .069 842.84 ----- .0350 .1050 .003 .072 842.92 ----- .0360 .1065 .003 .075 843.00 ----- .0360 .1080 .003 .078 843.09 ----- .0370 .1095 .003 .081 843.17 ----- .0380 .1125 .003 .084 POND VOLUME EQUATIONS * Incremental volume computed by the Conic Method for Reservoir Volumes. Volume = (1/3) * (EL2-EL1) * (Area1 + Area2 + sq.rt.(Area1*Area2)) where: EL1, EL2 = Lower and upper elevations of the increment Area1,Area2 = Areas computed for EL1, EL2, respectively Volume = Incremental volume between EL1 and EL2 S/N: Bentley PondPack (10.00.027.00) 1:19 PM 4/20/2017 Bentley Systems, Inc. File.... G:\DE\Clients\Hagerman Construction\076910 STAR Bank Carmel\4.0 Disciplines\Civil\Eng\Detention\PR Drainage 04-12-17.ppw Name.... CONTROL STRUCTUR Type.... Outlet Input Data Page 8.01 REQUESTED POND WS ELEVATIONS: Min. Elev.= 838.92 ft Increment = 838.92 ft Max. Elev.= 843.17 ft ********************************************** OUTLET CONNECTIVITY ********************************************** ---> Forward Flow Only (UpStream to DnStream) <--- Reverse Flow Only (DnStream to UpStream) <---> Forward and Reverse Both Allowed Structure No. Outfall E1, ft E2, ft ----------------- ---- ------- --------- --------- Orifice-Circular O0 ---> C1 839.020 843.170 Orifice-Circular O1 ---> C1 841.500 843.170 Culvert-Circular C1 ---> TW 839.020 843.170 TW SETUP, DS Channel S/N: Bentley PondPack (10.00.027.00) 1:19 PM 4/20/2017 Bentley Systems, Inc. File.... G:\DE\Clients\Hagerman Construction\076910 STAR Bank Carmel\4.0 Disciplines\Civil\Eng\Detention\PR Drainage 04-12-17.ppw Name.... CONTROL STRUCTUR Type.... Outlet Input Data Page 8.02 OUTLET STRUCTURE INPUT DATA Structure ID = O0 Structure Type = Orifice-Circular ------------------------------------ # of Openings = 1 Invert Elev. = 839.02 ft Diameter = .7500 ft Orifice Coeff. = .660 Structure ID = O1 Structure Type = Orifice-Circular ------------------------------------ # of Openings = 1 Invert Elev. = 841.50 ft Diameter = .2500 ft Orifice Coeff. = .660 S/N: Bentley PondPack (10.00.027.00) 1:19 PM 4/20/2017 Bentley Systems, Inc. File.... G:\DE\Clients\Hagerman Construction\076910 STAR Bank Carmel\4.0 Disciplines\Civil\Eng\Detention\PR Drainage 04-12-17.ppw Name.... CONTROL STRUCTUR Type.... Outlet Input Data Page 8.03 OUTLET STRUCTURE INPUT DATA Structure ID = C1 Structure Type = Culvert-Circular ------------------------------------ No. Barrels = 1 Barrel Diameter = 1.5000 ft Upstream Invert = 839.02 ft Dnstream Invert = 839.90 ft Horiz. Length = 64.00 ft Barrel Length = 64.01 ft Barrel Slope = -.01375 ft/ft OUTLET CONTROL DATA... Mannings n = .0130 Ke = .2000 (forward entrance loss) Kb = .018213 (per ft of full flow) Kr = .2000 (reverse entrance loss) HW Convergence = .001 +/- ft INLET CONTROL DATA... Equation form = 1 Inlet Control K = .0018 Inlet Control M = 2.0000 Inlet Control c = .02920 Inlet Control Y = .7400 T1 ratio (HW/D) = 1.069 T2 ratio (HW/D) = 1.214 Slope Factor = -.500 Use unsubmerged inlet control Form 1 equ. below T1 elev. Use submerged inlet control Form 1 equ. above T2 elev. In transition zone between unsubmerged and submerged inlet control, interpolate between flows at T1 & T2... At T1 Elev = 840.62 ft ---> Flow = 7.58 cfs At T2 Elev = 840.84 ft ---> Flow = 8.66 cfs Structure ID = TW Structure Type = TW SETUP, DS Channel ------------------------------------ FREE OUTFALL CONDITIONS SPECIFIED CONVERGENCE TOLERANCES... Maximum Iterations= 40 Min. TW tolerance = .01 ft Max. TW tolerance = .01 ft Min. HW tolerance = .01 ft Max. HW tolerance = .01 ft Min. Q tolerance = .00 cfs Max. Q tolerance = .00 cfs S/N: Bentley PondPack (10.00.027.00) 1:19 PM 4/20/2017 Bentley Systems, Inc. Index of Starting Page Numbers for ID Names Appendix A A-1 ----- C ----- City of Carmel... 2.01 CONTROL STRUCTUR... 8.01 ----- D ----- DIRECT DISCHARGE... 3.01, 4.01 ----- P ----- PR AREA... 3.03, 4.02 ----- S ----- STORM TECH... 7.01, 5.01, 6.01 ----- W ----- Watershed... 1.01 S/N: Bentley PondPack (10.00.027.00) 1:19 PM 4/20/2017 Bentley Systems, Inc. OUTLET A d d lin k 1 0 Addlink 20 PR AREA DIRECT DISCHARGE STORM TECH PR OUT Rain Dir: G:\DE\Clients\Hagerman Construction\076910 STAR Bank Carmel\4.0 Disciplines\Civil\Eng\Detention\ Job File: G:\DE\Clients\Hagerman Construction\076910 STAR Bank Carmel\4.0 Disciplines\Civil\Eng\Detention\PR DRAINAGE 04-20-17 6 OR.PPW ========================== JOB TITLE ========================== Project Date: 4/20/2017 Project Engineer: Canter Project Title: Star Bank Carmel Project Comments: S/N: Bentley PondPack (10.00.027.00) 1:40 PM 4/20/2017 Bentley Systems, Inc. i Table of Contents Table of Contents ********************** MASTER SUMMARY ********************** Watershed....... Master Network Summary ............. 1.01 ****************** DESIGN STORMS SUMMARY ******************* City of Carmel.. Design Storms ...................... 2.01 ********************** TC CALCULATIONS ********************* DIRECT DISCHARGE Tc Calcs ........................... 3.01 PR AREA......... Tc Calcs ........................... 3.03 ********************** CN CALCULATIONS ********************* DIRECT DISCHARGE Runoff CN-Area ..................... 4.01 PR AREA......... Runoff CN-Area ..................... 4.02 *********************** TIME VS.ELEV *********************** STORM TECH OUT 100 Time-Elev .......................... 5.01 ************************ TIME VS.VOL *********************** STORM TECH OUT 100 Time vs. Volume .................... 6.01 S/N: Bentley PondPack (10.00.027.00) 1:40 PM 4/20/2017 Bentley Systems, Inc. Table of Contents ii Table of Contents (continued) *********************** POND VOLUMES *********************** STORM TECH...... Vol: Elev-Area ..................... 7.01 ******************** OUTLET STRUCTURES ********************* CONTROL STRUCTUR Outlet Input Data .................. 8.01 S/N: Bentley PondPack (10.00.027.00) 1:40 PM 4/20/2017 Bentley Systems, Inc. File.... G:\DE\Clients\Hagerman Construction\076910 STAR Bank Carmel\4.0 Disciplines\Civil\Eng\Detention\PR Drainage 04-20-17 6 or.ppw Name.... Watershed Type.... Master Network Summary Page 1.01 MASTER DESIGN STORM SUMMARY Network Storm Collection: City of Carmel Total Depth Rainfall Return Event in Type RNF ID ------------ ------ ---------------- ---------------- 10 3.8300 Synthetic Curve TypeII 24hr 100 6.4600 Synthetic Curve TypeII 24hr MASTER NETWORK SUMMARY SCS Unit Hydrograph Method (*Node=Outfall; +Node=Diversion;) (Trun= HYG Truncation: Blank=None; L=Left; R=Rt; LR=Left&Rt) Max Return HYG Vol Qpeak Qpeak Max WSEL Pond Storage Node ID Type Event ac-ft Trun hrs cfs ft ac-ft ----------------- ---- ------ ---------- -- --------- -------- -------- ------------ DIRECT DISCHARGE AREA 10 .015 11.9000 .27 DIRECT DISCHARGE AREA 100 .030 11.9000 .52 PR AREA AREA 10 .219 11.9000 3.69 PR AREA AREA 100 .389 11.9000 6.37 *PR OUT JCT 10 .234 12.0000 2.63 *PR OUT JCT 100 .418 12.0000 4.25 STORM TECH IN POND 10 .219 11.9000 3.69 STORM TECH IN POND 100 .389 11.9000 6.37 STORM TECH OUT POND 10 .219 12.0500 2.41 841.72 .036 STORM TECH OUT POND 100 .389 12.0500 3.90 842.74 .069 S/N: Bentley PondPack (10.00.027.00) 1:40 PM 4/20/2017 Bentley Systems, Inc. File.... G:\DE\Clients\Hagerman Construction\076910 STAR Bank Carmel\4.0 Disciplines\Civil\Eng\Detention\PR Drainage 04-20-17 6 or.ppw Name.... City of Carmel Type.... Design Storms Page 2.01 Title... Project Date: 4/20/2017 Project Engineer: Canter Project Title: Star Bank Carmel Project Comments: DESIGN STORMS SUMMARY Design Storm File,ID = City of Carmel Storm Tag Name = 10 ---------------------------------------------------------------------- Data Type, File, ID = Synthetic Storm TypeII 24hr Storm Frequency = 10 yr Total Rainfall Depth= 3.8300 in Duration Multiplier = 1 Resulting Duration = 24.0000 hrs Resulting Start Time= .0000 hrs Step= .1000 hrs End= 24.0000 hrs Storm Tag Name = 100 ---------------------------------------------------------------------- Data Type, File, ID = Synthetic Storm TypeII 24hr Storm Frequency = 100 yr Total Rainfall Depth= 6.4600 in Duration Multiplier = 1 Resulting Duration = 24.0000 hrs Resulting Start Time= .0000 hrs Step= .1000 hrs End= 24.0000 hrs S/N: Bentley PondPack (10.00.027.00) 1:40 PM 4/20/2017 Bentley Systems, Inc. File.... G:\DE\Clients\Hagerman Construction\076910 STAR Bank Carmel\4.0 Disciplines\Civil\Eng\Detention\PR Drainage 04-20-17 6 or.ppw Name.... DIRECT DISCHARGE Type.... Tc Calcs Page 3.01 :::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::: TIME OF CONCENTRATION CALCULATOR :::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::: ------------------------------------------------------------------------ Segment #1: Tc: TR-55 Sheet Mannings n .0120 Hydraulic Length 45.00 ft 2yr, 24hr P 2.6600 in Slope .072000 ft/ft Avg.Velocity 1.66 ft/sec Segment #1 Time: .0075 hrs ------------------------------------------------------------------------ ========================= Total Tc: .0075 hrs Calculated Tc < Min.Tc: Use Minimum Tc... Use Tc = .0833 hrs ========================= S/N: Bentley PondPack (10.00.027.00) 1:40 PM 4/20/2017 Bentley Systems, Inc. File.... G:\DE\Clients\Hagerman Construction\076910 STAR Bank Carmel\4.0 Disciplines\Civil\Eng\Detention\PR Drainage 04-20-17 6 or.ppw Name.... DIRECT DISCHARGE Type.... Tc Calcs Page 3.02 ------------------------------------------------------------------------ Tc Equations used... ------------------------------------------------------------------------ ==== SCS TR-55 Sheet Flow ============================================== Tc = (.007 * ((n * Lf)**0.8)) / ((P**.5) * (Sf**.4)) Where: Tc = Time of concentration, hrs n = Mannings n Lf = Flow length, ft P = 2yr, 24hr Rain depth, inches Sf = Slope, % S/N: Bentley PondPack (10.00.027.00) 1:40 PM 4/20/2017 Bentley Systems, Inc. File.... G:\DE\Clients\Hagerman Construction\076910 STAR Bank Carmel\4.0 Disciplines\Civil\Eng\Detention\PR Drainage 04-20-17 6 or.ppw Name.... PR AREA Type.... Tc Calcs Page 3.03 :::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::: TIME OF CONCENTRATION CALCULATOR :::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::: ------------------------------------------------------------------------ Segment #1: Tc: TR-55 Sheet Mannings n .0120 Hydraulic Length 100.00 ft 2yr, 24hr P 2.6600 in Slope .020000 ft/ft Avg.Velocity 1.17 ft/sec Segment #1 Time: .0237 hrs ------------------------------------------------------------------------ Segment #2: Tc: TR-55 Shallow Hydraulic Length 43.00 ft Slope .020000 ft/ft Paved Avg.Velocity 2.87 ft/sec Segment #2 Time: .0042 hrs ------------------------------------------------------------------------ Segment #3: Tc: TR-55 Channel Flow Area .7900 sq.ft Wetted Perimeter 3.14 ft Hydraulic Radius .25 ft Slope .003300 ft/ft Mannings n .0130 Hydraulic Length 118.00 ft Avg.Velocity 2.62 ft/sec Segment #3 Time: .0125 hrs ------------------------------------------------------------------------ S/N: Bentley PondPack (10.00.027.00) 1:40 PM 4/20/2017 Bentley Systems, Inc. File.... G:\DE\Clients\Hagerman Construction\076910 STAR Bank Carmel\4.0 Disciplines\Civil\Eng\Detention\PR Drainage 04-20-17 6 or.ppw Name.... PR AREA Type.... Tc Calcs Page 3.04 Segment #4: Tc: TR-55 Channel Flow Area .7900 sq.ft Wetted Perimeter 3.14 ft Hydraulic Radius .25 ft Slope .003300 ft/ft Mannings n .0130 Hydraulic Length 72.00 ft Avg.Velocity 2.62 ft/sec Segment #4 Time: .0076 hrs ------------------------------------------------------------------------ ========================= Total Tc: .0480 hrs Calculated Tc < Min.Tc: Use Minimum Tc... Use Tc = .0833 hrs ========================= S/N: Bentley PondPack (10.00.027.00) 1:40 PM 4/20/2017 Bentley Systems, Inc. File.... G:\DE\Clients\Hagerman Construction\076910 STAR Bank Carmel\4.0 Disciplines\Civil\Eng\Detention\PR Drainage 04-20-17 6 or.ppw Name.... PR AREA Type.... Tc Calcs Page 3.05 ------------------------------------------------------------------------ Tc Equations used... ------------------------------------------------------------------------ ==== SCS TR-55 Sheet Flow ============================================== Tc = (.007 * ((n * Lf)**0.8)) / ((P**.5) * (Sf**.4)) Where: Tc = Time of concentration, hrs n = Mannings n Lf = Flow length, ft P = 2yr, 24hr Rain depth, inches Sf = Slope, % ==== SCS TR-55 Shallow Concentrated Flow =============================== Unpaved surface: V = 16.1345 * (Sf**0.5) Paved surface: V = 20.3282 * (Sf**0.5) Tc = (Lf / V) / (3600sec/hr) Where: V = Velocity, ft/sec Sf = Slope, ft/ft Tc = Time of concentration, hrs Lf = Flow length, ft S/N: Bentley PondPack (10.00.027.00) 1:40 PM 4/20/2017 Bentley Systems, Inc. File.... G:\DE\Clients\Hagerman Construction\076910 STAR Bank Carmel\4.0 Disciplines\Civil\Eng\Detention\PR Drainage 04-20-17 6 or.ppw Name.... PR AREA Type.... Tc Calcs Page 3.06 ==== SCS Channel Flow ================================================== R = Aq / Wp V = (1.49 * (R**(2/3)) * (Sf**-0.5)) / n Tc = (Lf / V) / (3600sec/hr) Where: R = Hydraulic radius Aq = Flow area, sq.ft. Wp = Wetted perimeter, ft V = Velocity, ft/sec Sf = Slope, ft/ft n = Mannings n Tc = Time of concentration, hrs Lf = Flow length, ft S/N: Bentley PondPack (10.00.027.00) 1:40 PM 4/20/2017 Bentley Systems, Inc. File.... G:\DE\Clients\Hagerman Construction\076910 STAR Bank Carmel\4.0 Disciplines\Civil\Eng\Detention\PR Drainage 04-20-17 6 or.ppw Name.... DIRECT DISCHARGE Type.... Runoff CN-Area Page 4.01 RUNOFF CURVE NUMBER DATA :::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::: -------------------------------------------------------------------------- Impervious Area Adjustment Adjusted Soil/Surface Description CN acres %C %UC CN -------------------------------- ---- --------- ----- ----- ------ Impervious 98 .020 98.00 Pervious 84 .050 84.00 COMPOSITE AREA & WEIGHTED CN ---> .070 88.00 (88) ::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::: S/N: Bentley PondPack (10.00.027.00) 1:40 PM 4/20/2017 Bentley Systems, Inc. File.... G:\DE\Clients\Hagerman Construction\076910 STAR Bank Carmel\4.0 Disciplines\Civil\Eng\Detention\PR Drainage 04-20-17 6 or.ppw Name.... PR AREA Type.... Runoff CN-Area Page 4.02 RUNOFF CURVE NUMBER DATA :::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::: -------------------------------------------------------------------------- Impervious Area Adjustment Adjusted Soil/Surface Description CN acres %C %UC CN -------------------------------- ---- --------- ----- ----- ------ Impervious 98 .690 98.00 Pervious 84 .090 84.00 COMPOSITE AREA & WEIGHTED CN ---> .780 96.38 (96) ::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::: S/N: Bentley PondPack (10.00.027.00) 1:40 PM 4/20/2017 Bentley Systems, Inc. Storm... TypeII 24hr Tag: 100 File.... G:\DE\Clients\Hagerman Construction\076910 STAR Bank Carmel\4.0 Disciplines\Civil\Eng\Detention\PR Drainage 04-20-17 6 or.ppw Name.... STORM TECH OUT Tag: 100 Event: 100 yr Type.... Time-Elev Page 5.01 TIME vs. ELEVATION (ft) Time | Output Time increment = .0500 hrs hrs | Time on left represents time for first value in each row. ---------|-------------------------------------------------------------- 1.3000 | 838.92 838.93 838.94 838.97 839.00 1.5500 | 839.02 839.02 839.02 839.02 839.03 1.8000 | 839.03 839.03 839.03 839.03 839.03 2.0500 | 839.03 839.03 839.03 839.04 839.04 2.3000 | 839.04 839.04 839.04 839.04 839.04 2.5500 | 839.04 839.04 839.04 839.05 839.05 2.8000 | 839.05 839.05 839.05 839.05 839.05 3.0500 | 839.05 839.05 839.05 839.05 839.05 3.3000 | 839.06 839.06 839.06 839.06 839.06 3.5500 | 839.06 839.06 839.06 839.06 839.06 3.8000 | 839.06 839.06 839.06 839.06 839.07 4.0500 | 839.07 839.07 839.07 839.07 839.07 4.3000 | 839.07 839.07 839.07 839.07 839.07 4.5500 | 839.07 839.08 839.08 839.08 839.08 4.8000 | 839.08 839.08 839.08 839.08 839.08 5.0500 | 839.08 839.08 839.08 839.09 839.09 5.3000 | 839.09 839.09 839.09 839.09 839.09 5.5500 | 839.09 839.09 839.09 839.09 839.09 5.8000 | 839.10 839.10 839.10 839.10 839.10 6.0500 | 839.10 839.10 839.10 839.10 839.10 6.3000 | 839.10 839.10 839.10 839.11 839.11 6.5500 | 839.11 839.11 839.11 839.11 839.11 6.8000 | 839.11 839.11 839.11 839.11 839.11 7.0500 | 839.12 839.12 839.12 839.12 839.12 7.3000 | 839.12 839.12 839.12 839.12 839.12 7.5500 | 839.12 839.12 839.12 839.13 839.13 7.8000 | 839.13 839.13 839.13 839.13 839.13 8.0500 | 839.13 839.13 839.13 839.13 839.14 8.3000 | 839.14 839.14 839.14 839.15 839.15 8.5500 | 839.15 839.15 839.16 839.16 839.16 8.8000 | 839.17 839.17 839.17 839.17 839.18 9.0500 | 839.18 839.18 839.19 839.19 839.19 9.3000 | 839.19 839.19 839.19 839.19 839.19 9.5500 | 839.19 839.19 839.20 839.20 839.20 9.8000 | 839.20 839.21 839.21 839.22 839.22 10.0500 | 839.23 839.23 839.24 839.24 839.25 10.3000 | 839.25 839.26 839.27 839.27 839.28 10.5500 | 839.29 839.29 839.30 839.31 839.32 10.8000 | 839.33 839.34 839.35 839.36 839.38 11.0500 | 839.39 839.40 839.42 839.44 839.46 11.3000 | 839.48 839.50 839.53 839.56 839.58 11.5500 | 839.64 839.76 839.97 840.28 840.71 11.8000 | 841.23 841.67 842.06 842.45 842.69 S/N: Bentley PondPack (10.00.027.00) 1:40 PM 4/20/2017 Bentley Systems, Inc. Storm... TypeII 24hr Tag: 100 File.... G:\DE\Clients\Hagerman Construction\076910 STAR Bank Carmel\4.0 Disciplines\Civil\Eng\Detention\PR Drainage 04-20-17 6 or.ppw Name.... STORM TECH OUT Tag: 100 Event: 100 yr Type.... Time-Elev Page 5.02 TIME vs. ELEVATION (ft) Time | Output Time increment = .0500 hrs hrs | Time on left represents time for first value in each row. ---------|-------------------------------------------------------------- 12.0500 | 842.74 842.57 842.30 842.03 841.79 12.3000 | 841.58 841.27 840.90 840.61 840.38 12.5500 | 840.19 840.03 839.91 839.81 839.73 12.8000 | 839.67 839.62 839.57 839.54 839.51 13.0500 | 839.48 839.46 839.44 839.42 839.40 13.3000 | 839.39 839.38 839.37 839.36 839.35 13.5500 | 839.34 839.33 839.32 839.31 839.30 13.8000 | 839.30 839.29 839.28 839.28 839.27 14.0500 | 839.27 839.26 839.26 839.25 839.25 14.3000 | 839.24 839.24 839.24 839.23 839.23 14.5500 | 839.23 839.23 839.23 839.22 839.22 14.8000 | 839.22 839.22 839.21 839.21 839.21 15.0500 | 839.21 839.21 839.20 839.20 839.20 15.3000 | 839.20 839.20 839.19 839.19 839.19 15.5500 | 839.19 839.18 839.18 839.18 839.18 15.8000 | 839.18 839.17 839.17 839.17 839.17 16.0500 | 839.17 839.16 839.16 839.16 839.16 16.3000 | 839.16 839.16 839.16 839.16 839.15 16.5500 | 839.15 839.15 839.15 839.15 839.15 16.8000 | 839.15 839.15 839.15 839.15 839.15 17.0500 | 839.15 839.15 839.14 839.14 839.14 17.3000 | 839.14 839.14 839.14 839.14 839.14 17.5500 | 839.14 839.14 839.14 839.14 839.14 17.8000 | 839.13 839.13 839.13 839.13 839.13 18.0500 | 839.13 839.13 839.13 839.13 839.13 18.3000 | 839.13 839.13 839.13 839.12 839.12 18.5500 | 839.12 839.12 839.12 839.12 839.12 18.8000 | 839.12 839.12 839.12 839.12 839.12 19.0500 | 839.12 839.12 839.11 839.11 839.11 19.3000 | 839.11 839.11 839.11 839.11 839.11 19.5500 | 839.11 839.11 839.11 839.11 839.11 19.8000 | 839.10 839.10 839.10 839.10 839.10 20.0500 | 839.10 839.10 839.10 839.10 839.10 20.3000 | 839.10 839.10 839.10 839.10 839.10 20.5500 | 839.10 839.10 839.10 839.10 839.10 20.8000 | 839.10 839.10 839.10 839.10 839.10 21.0500 | 839.10 839.10 839.10 839.10 839.10 21.3000 | 839.09 839.09 839.09 839.09 839.09 21.5500 | 839.09 839.09 839.09 839.09 839.09 21.8000 | 839.09 839.09 839.09 839.09 839.09 22.0500 | 839.09 839.09 839.09 839.09 839.09 22.3000 | 839.09 839.09 839.09 839.09 839.09 22.5500 | 839.09 839.09 839.09 839.09 839.09 22.8000 | 839.09 839.09 839.09 839.09 839.09 S/N: Bentley PondPack (10.00.027.00) 1:40 PM 4/20/2017 Bentley Systems, Inc. Storm... TypeII 24hr Tag: 100 File.... G:\DE\Clients\Hagerman Construction\076910 STAR Bank Carmel\4.0 Disciplines\Civil\Eng\Detention\PR Drainage 04-20-17 6 or.ppw Name.... STORM TECH OUT Tag: 100 Event: 100 yr Type.... Time-Elev Page 5.03 TIME vs. ELEVATION (ft) Time | Output Time increment = .0500 hrs hrs | Time on left represents time for first value in each row. ---------|-------------------------------------------------------------- 23.0500 | 839.09 839.09 839.09 839.09 839.09 23.3000 | 839.09 839.09 839.09 839.09 839.09 23.5500 | 839.09 839.09 839.09 839.09 839.09 23.8000 | 839.09 839.09 839.09 839.09 839.09 24.0500 | 839.08 839.07 839.06 839.05 839.04 24.3000 | 839.04 839.03 839.03 839.03 839.03 24.5500 | 839.02 839.02 S/N: Bentley PondPack (10.00.027.00) 1:40 PM 4/20/2017 Bentley Systems, Inc. Storm... TypeII 24hr Tag: 100 File.... G:\DE\Clients\Hagerman Construction\076910 STAR Bank Carmel\4.0 Disciplines\Civil\Eng\Detention\PR Drainage 04-20-17 6 or.ppw Name.... STORM TECH OUT Tag: 100 Event: 100 yr Type.... Time vs. Volume Page 6.01 TIME vs. VOLUME (ac-ft) Time | Output Time increment = .0500 hrs hrs | Time on left represents time for first value in each row. ---------|-------------------------------------------------------------- 1.3000 | .000 .000 .000 .000 .000 1.5500 | .000 .000 .000 .000 .000 1.8000 | .000 .000 .000 .000 .000 2.0500 | .000 .000 .000 .000 .000 2.3000 | .000 .000 .000 .000 .000 2.5500 | .000 .000 .000 .000 .000 2.8000 | .000 .000 .000 .000 .000 3.0500 | .000 .000 .000 .000 .000 3.3000 | .000 .000 .000 .000 .000 3.5500 | .000 .000 .000 .000 .000 3.8000 | .000 .000 .000 .000 .000 4.0500 | .000 .000 .000 .000 .000 4.3000 | .000 .000 .000 .000 .000 4.5500 | .000 .000 .000 .000 .000 4.8000 | .000 .000 .000 .000 .000 5.0500 | .000 .000 .000 .000 .000 5.3000 | .000 .000 .000 .000 .000 5.5500 | .000 .000 .000 .000 .000 5.8000 | .000 .000 .000 .000 .000 6.0500 | .000 .000 .000 .000 .000 6.3000 | .000 .000 .000 .000 .000 6.5500 | .000 .000 .000 .000 .000 6.8000 | .000 .000 .000 .000 .000 7.0500 | .000 .000 .000 .000 .000 7.3000 | .000 .000 .000 .000 .000 7.5500 | .000 .000 .000 .000 .000 7.8000 | .000 .000 .000 .000 .000 8.0500 | .000 .000 .000 .000 .000 8.3000 | .000 .000 .000 .000 .000 8.5500 | .000 .000 .000 .000 .000 8.8000 | .000 .000 .000 .000 .000 9.0500 | .000 .000 .000 .000 .000 9.3000 | .000 .000 .000 .000 .000 9.5500 | .000 .000 .000 .000 .000 9.8000 | .000 .000 .000 .000 .000 10.0500 | .000 .000 .000 .000 .000 10.3000 | .000 .000 .000 .000 .000 10.5500 | .000 .000 .001 .001 .001 10.8000 | .001 .001 .001 .001 .001 11.0500 | .001 .001 .001 .001 .001 11.3000 | .001 .001 .001 .001 .001 11.5500 | .002 .002 .004 .007 .013 11.8000 | .024 .035 .046 .059 .067 S/N: Bentley PondPack (10.00.027.00) 1:40 PM 4/20/2017 Bentley Systems, Inc. Storm... TypeII 24hr Tag: 100 File.... G:\DE\Clients\Hagerman Construction\076910 STAR Bank Carmel\4.0 Disciplines\Civil\Eng\Detention\PR Drainage 04-20-17 6 or.ppw Name.... STORM TECH OUT Tag: 100 Event: 100 yr Type.... Time vs. Volume Page 6.02 TIME vs. VOLUME (ac-ft) Time | Output Time increment = .0500 hrs hrs | Time on left represents time for first value in each row. ---------|-------------------------------------------------------------- 12.0500 | .069 .063 .054 .045 .038 12.3000 | .033 .025 .017 .012 .008 12.5500 | .006 .004 .003 .003 .002 12.8000 | .002 .002 .001 .001 .001 13.0500 | .001 .001 .001 .001 .001 13.3000 | .001 .001 .001 .001 .001 13.5500 | .001 .001 .001 .001 .001 13.8000 | .001 .000 .000 .000 .000 14.0500 | .000 .000 .000 .000 .000 14.3000 | .000 .000 .000 .000 .000 14.5500 | .000 .000 .000 .000 .000 14.8000 | .000 .000 .000 .000 .000 15.0500 | .000 .000 .000 .000 .000 15.3000 | .000 .000 .000 .000 .000 15.5500 | .000 .000 .000 .000 .000 15.8000 | .000 .000 .000 .000 .000 16.0500 | .000 .000 .000 .000 .000 16.3000 | .000 .000 .000 .000 .000 16.5500 | .000 .000 .000 .000 .000 16.8000 | .000 .000 .000 .000 .000 17.0500 | .000 .000 .000 .000 .000 17.3000 | .000 .000 .000 .000 .000 17.5500 | .000 .000 .000 .000 .000 17.8000 | .000 .000 .000 .000 .000 18.0500 | .000 .000 .000 .000 .000 18.3000 | .000 .000 .000 .000 .000 18.5500 | .000 .000 .000 .000 .000 18.8000 | .000 .000 .000 .000 .000 19.0500 | .000 .000 .000 .000 .000 19.3000 | .000 .000 .000 .000 .000 19.5500 | .000 .000 .000 .000 .000 19.8000 | .000 .000 .000 .000 .000 20.0500 | .000 .000 .000 .000 .000 20.3000 | .000 .000 .000 .000 .000 20.5500 | .000 .000 .000 .000 .000 20.8000 | .000 .000 .000 .000 .000 21.0500 | .000 .000 .000 .000 .000 21.3000 | .000 .000 .000 .000 .000 21.5500 | .000 .000 .000 .000 .000 21.8000 | .000 .000 .000 .000 .000 22.0500 | .000 .000 .000 .000 .000 22.3000 | .000 .000 .000 .000 .000 22.5500 | .000 .000 .000 .000 .000 22.8000 | .000 .000 .000 .000 .000 S/N: Bentley PondPack (10.00.027.00) 1:40 PM 4/20/2017 Bentley Systems, Inc. Storm... TypeII 24hr Tag: 100 File.... G:\DE\Clients\Hagerman Construction\076910 STAR Bank Carmel\4.0 Disciplines\Civil\Eng\Detention\PR Drainage 04-20-17 6 or.ppw Name.... STORM TECH OUT Tag: 100 Event: 100 yr Type.... Time vs. Volume Page 6.03 TIME vs. VOLUME (ac-ft) Time | Output Time increment = .0500 hrs hrs | Time on left represents time for first value in each row. ---------|-------------------------------------------------------------- 23.0500 | .000 .000 .000 .000 .000 23.3000 | .000 .000 .000 .000 .000 23.5500 | .000 .000 .000 .000 .000 23.8000 | .000 .000 .000 .000 .000 24.0500 | .000 .000 .000 .000 .000 24.3000 | .000 .000 .000 .000 .000 24.5500 | .000 .000 S/N: Bentley PondPack (10.00.027.00) 1:40 PM 4/20/2017 Bentley Systems, Inc. File.... G:\DE\Clients\Hagerman Construction\076910 STAR Bank Carmel\4.0 Disciplines\Civil\Eng\Detention\PR Drainage 04-20-17 6 or.ppw Name.... STORM TECH Type.... Vol: Elev-Area Page 7.01 Elevation Planimeter Area A1+A2+sqr(A1*A2) Volume Volume Sum (ft) (sq.in) (acres) (acres) (ac-ft) (ac-ft) ------------------------------------------------------------------------ 838.92 ----- .0000 .0000 .000 .000 839.00 ----- .0010 .0010 .000 .000 839.09 ----- .0010 .0030 .000 .000 839.17 ----- .0020 .0044 .000 .000 839.25 ----- .0020 .0060 .000 .000 839.34 ----- .0030 .0074 .000 .001 839.42 ----- .0030 .0090 .000 .001 839.50 ----- .0040 .0105 .000 .001 839.59 ----- .0040 .0120 .000 .001 839.67 ----- .0050 .0135 .000 .002 839.75 ----- .0060 .0165 .000 .002 839.84 ----- .0070 .0195 .001 .003 839.92 ----- .0080 .0225 .001 .003 840.00 ----- .0090 .0255 .001 .004 840.09 ----- .0100 .0285 .001 .005 840.17 ----- .0110 .0315 .001 .006 840.25 ----- .0120 .0345 .001 .007 840.34 ----- .0130 .0375 .001 .008 840.42 ----- .0140 .0405 .001 .009 840.50 ----- .0150 .0435 .001 .010 840.59 ----- .0160 .0465 .001 .012 840.67 ----- .0170 .0495 .001 .013 840.75 ----- .0180 .0525 .001 .014 840.84 ----- .0190 .0555 .002 .016 840.92 ----- .0200 .0585 .002 .017 841.00 ----- .0210 .0615 .002 .019 841.09 ----- .0210 .0630 .002 .021 841.17 ----- .0220 .0645 .002 .023 841.25 ----- .0230 .0675 .002 .025 841.34 ----- .0240 .0705 .002 .027 841.42 ----- .0250 .0735 .002 .029 841.50 ----- .0260 .0765 .002 .031 841.59 ----- .0260 .0780 .002 .033 841.67 ----- .0270 .0795 .002 .035 841.75 ----- .0280 .0825 .002 .037 841.84 ----- .0290 .0855 .003 .040 841.92 ----- .0290 .0870 .002 .042 842.00 ----- .0300 .0885 .002 .045 842.09 ----- .0310 .0915 .003 .047 842.17 ----- .0310 .0930 .002 .050 842.25 ----- .0320 .0945 .003 .052 842.34 ----- .0320 .0960 .003 .055 842.42 ----- .0330 .0975 .003 .058 842.50 ----- .0330 .0990 .003 .060 S/N: Bentley PondPack (10.00.027.00) 1:40 PM 4/20/2017 Bentley Systems, Inc. File.... G:\DE\Clients\Hagerman Construction\076910 STAR Bank Carmel\4.0 Disciplines\Civil\Eng\Detention\PR Drainage 04-20-17 6 or.ppw Name.... STORM TECH Type.... Vol: Elev-Area Page 7.02 Elevation Planimeter Area A1+A2+sqr(A1*A2) Volume Volume Sum (ft) (sq.in) (acres) (acres) (ac-ft) (ac-ft) ------------------------------------------------------------------------ 842.59 ----- .0340 .1005 .003 .063 842.67 ----- .0340 .1020 .003 .066 842.75 ----- .0350 .1035 .003 .069 842.84 ----- .0350 .1050 .003 .072 842.92 ----- .0360 .1065 .003 .075 843.00 ----- .0360 .1080 .003 .078 843.09 ----- .0370 .1095 .003 .081 843.17 ----- .0380 .1125 .003 .084 POND VOLUME EQUATIONS * Incremental volume computed by the Conic Method for Reservoir Volumes. Volume = (1/3) * (EL2-EL1) * (Area1 + Area2 + sq.rt.(Area1*Area2)) where: EL1, EL2 = Lower and upper elevations of the increment Area1,Area2 = Areas computed for EL1, EL2, respectively Volume = Incremental volume between EL1 and EL2 S/N: Bentley PondPack (10.00.027.00) 1:40 PM 4/20/2017 Bentley Systems, Inc. File.... G:\DE\Clients\Hagerman Construction\076910 STAR Bank Carmel\4.0 Disciplines\Civil\Eng\Detention\PR Drainage 04-20-17 6 or.ppw Name.... CONTROL STRUCTUR Type.... Outlet Input Data Page 8.01 REQUESTED POND WS ELEVATIONS: Min. Elev.= 838.92 ft Increment = 838.92 ft Max. Elev.= 843.17 ft ********************************************** OUTLET CONNECTIVITY ********************************************** ---> Forward Flow Only (UpStream to DnStream) <--- Reverse Flow Only (DnStream to UpStream) <---> Forward and Reverse Both Allowed Structure No. Outfall E1, ft E2, ft ----------------- ---- ------- --------- --------- Orifice-Circular O0 ---> C1 839.020 843.170 Orifice-Circular O1 ---> C1 841.500 843.170 Culvert-Circular C1 ---> TW 839.020 843.170 TW SETUP, DS Channel S/N: Bentley PondPack (10.00.027.00) 1:40 PM 4/20/2017 Bentley Systems, Inc. File.... G:\DE\Clients\Hagerman Construction\076910 STAR Bank Carmel\4.0 Disciplines\Civil\Eng\Detention\PR Drainage 04-20-17 6 or.ppw Name.... CONTROL STRUCTUR Type.... Outlet Input Data Page 8.02 OUTLET STRUCTURE INPUT DATA Structure ID = O0 Structure Type = Orifice-Circular ------------------------------------ # of Openings = 1 Invert Elev. = 839.02 ft Diameter = .7500 ft Orifice Coeff. = .660 Structure ID = O1 Structure Type = Orifice-Circular ------------------------------------ # of Openings = 1 Invert Elev. = 841.50 ft Diameter = .5000 ft Orifice Coeff. = .660 S/N: Bentley PondPack (10.00.027.00) 1:40 PM 4/20/2017 Bentley Systems, Inc. File.... G:\DE\Clients\Hagerman Construction\076910 STAR Bank Carmel\4.0 Disciplines\Civil\Eng\Detention\PR Drainage 04-20-17 6 or.ppw Name.... CONTROL STRUCTUR Type.... Outlet Input Data Page 8.03 OUTLET STRUCTURE INPUT DATA Structure ID = C1 Structure Type = Culvert-Circular ------------------------------------ No. Barrels = 1 Barrel Diameter = 1.5000 ft Upstream Invert = 839.02 ft Dnstream Invert = 839.90 ft Horiz. Length = 64.00 ft Barrel Length = 64.01 ft Barrel Slope = -.01375 ft/ft OUTLET CONTROL DATA... Mannings n = .0130 Ke = .2000 (forward entrance loss) Kb = .018213 (per ft of full flow) Kr = .2000 (reverse entrance loss) HW Convergence = .001 +/- ft INLET CONTROL DATA... Equation form = 1 Inlet Control K = .0018 Inlet Control M = 2.0000 Inlet Control c = .02920 Inlet Control Y = .7400 T1 ratio (HW/D) = .000 T2 ratio (HW/D) = 1.214 Slope Factor = -.500 Use unsubmerged inlet control Form 1 equ. below T1 elev. Use submerged inlet control Form 1 equ. above T2 elev. In transition zone between unsubmerged and submerged inlet control, interpolate between flows at T1 & T2... At T1 Elev = 839.02 ft ---> Flow = 7.58 cfs At T2 Elev = 840.84 ft ---> Flow = 8.66 cfs Structure ID = TW Structure Type = TW SETUP, DS Channel ------------------------------------ FREE OUTFALL CONDITIONS SPECIFIED CONVERGENCE TOLERANCES... Maximum Iterations= 40 Min. TW tolerance = .01 ft Max. TW tolerance = .01 ft Min. HW tolerance = .01 ft Max. HW tolerance = .01 ft Min. Q tolerance = .00 cfs Max. Q tolerance = .00 cfs S/N: Bentley PondPack (10.00.027.00) 1:40 PM 4/20/2017 Bentley Systems, Inc. Index of Starting Page Numbers for ID Names Appendix A A-1 ----- C ----- City of Carmel... 2.01 CONTROL STRUCTUR... 8.01 ----- D ----- DIRECT DISCHARGE... 3.01, 4.01 ----- P ----- PR AREA... 3.03, 4.02 ----- S ----- STORM TECH... 7.01, 5.01, 6.01 ----- W ----- Watershed... 1.01 S/N: Bentley PondPack (10.00.027.00) 1:40 PM 4/20/2017 Bentley Systems, Inc. Appendix B3 – Water Quality Calculations INFILTRATION CALCULATOR Project Name:Star Bank Carmel Address: State:IN Project Size:2,400 SF Water Storage Factors Rain Event Calculation & Annual Stormwater Infiltration Void space of #57 Clean Stone1 35.00%State Capital Largest Daily Rainfall - 20114 Indianapolis 3.06 Inches Void space of #2 Clean Stone1 40.00%Infiltration Rate per Hour Based on Soil 1.50 Depth of #57 Clean Stone (inches)10.00 Target Rainfall Event (Inches/Hour)8.00 Depth of # 2 Clean Stone (inches)6.00 Indicated Gallons of Water on Pavedrain 11,904.19 Rainwater per Year in State (inches)2 41.70 Excess (Deficit) of Water Storage (Gallons)1,023.29 Gallons per Square Foot Factor ("GF")0.62001 Hours to Infiltrate Event in Soil (Rain Event)5.33 Gallons per Square Foot based on Above 25.85 Annual Gallons Infiltrated of Runoff from Direct Rainfall 62,050.60 Storage Space per Pavedrain Block3 0.095 Hours to Infiltrate Direct Rainfall (Rainfall-Year/Infiltration Rate)27.80 Storage Calculation Supplemental Surface Storage (CF) [Clean Stone + Pavedrain]1,429.87 Roof (SF)- Gallons per Cubic Feet 7.48 Impervious Surface (SF)20,473 Total Storage In Gallons [Clean Stone + Pavedrain]10,695.44 Total Supplemental Surface 20,473 Total Storage - Infiltration [Rate x SF x GF)2,232.04 Total Gallons for Year 529,322.65 Total Storage in Gallons 12,927.48 Capacity Required during Targeted Rain Event 101,548.71 Maximum Rain Event Storage [Storage + Infiltration]8.69 Capacity Required during 1" Inch/Hr Event 12,693.59 1 We have used accepted void percentages from local jurisdictions 2 Based on NOAA Website figures 3 See sheet "pavedrainvoid" 4 Statistics on major cities from NOAA website