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Home My WebLink AboutDrainage ReportJACKSON’S GRANT VILLAGE DRAINAGE REPORT PREPARED FOR: Republic Development LLC Contact Person: Douglas B. Wagner 13578 E. 131st Street, Suite 200 Fishers, IN 46037 Contact Phone Number: (317) 770-1818 Contact Email: dwagner@republicdev.com PREPARED BY: Stoeppelwerth & Associates, Inc. Contact Person: Brian M. Brown, P.E., CFM 7965 East 106th Street Fishers, Indiana 46038 Contact Phone Number: (317) 570-4704 Contact Email Address: bbrown@stoeppelwerth.com DATE PREPARED: December 16, 2020 DATE REVISED: March 15, 2021 DRAINAGE REPORT JACKSON ’S GRANT VILLAGE JOB # 60160JGV TABLE OF CONTENTS ENGINEERING CERTIFICATION CERTIFICATE OF INSURANCE DRAINAGE NARRATIVE EXHIBITS LOCATION MAP FLOODPLAIN MAP SOILS MAP RAINFALL DATA APPENDIX A - EXISTING SITE CONDITIONS CALCULATIONS APPENDIX B - PRELIM PROPOSED OVERALL SITE CONDITIONS CALCULATIONS APPENDIX C - BASIN MAPS 03/15/2021 Page 2 of 31 ENGINEERING CERTIFICATION JACKSON’S GRANT VILLAGE PRELIMINARY DRAINAGE REPORT AND ANALYSIS Brian M. Brown, PE, CFM Indiana Registration No. 11200386 I, Brian M Brown, certify that this drainage report and supporting calculations are in compliance with the requirements set forth by the Hamilton County Drainage Board and/or Hamilton County Surveyor in the Hamilton County, Indiana Stormwater Management Ordinance. 03/15/2021 Page 3 of 31 ANY PROPRIETOR/PARTNER/EXECUTIVEOFFICER/MEMBER EXCLUDED? INSR ADDL SUBR LTR INSD WVD PRODUCER CONTACT NAME: FAXPHONE (A/C, No):(A/C, No, Ext): E-MAIL ADDRESS: INSURER A : INSURED INSURER B : INSURER C : INSURER D : INSURER E : INSURER F : POLICY NUMBER POLICY EFF POLICY EXPTYPE OF INSURANCE LIMITS(MM/DD/YYYY) (MM/DD/YYYY) AUTOMOBILE LIABILITY UMBRELLA LIAB EXCESS LIAB WORKERS COMPENSATION AND EMPLOYERS' LIABILITY DESCRIPTION OF OPERATIONS / LOCATIONS / VEHICLES (ACORD 101, Additional Remarks Schedule, may be attached if more space is required) AUTHORIZED REPRESENTATIVE EACH OCCURRENCE $ DAMAGE TO RENTEDCLAIMS-MADE OCCUR $PREMISES (Ea occurrence) MED EXP (Any one person) $ PERSONAL & ADV INJURY $ GEN'L AGGREGATE LIMIT APPLIES PER:GENERAL AGGREGATE $ PRO-POLICY LOC PRODUCTS - COMP/OP AGGJECT OTHER:$ COMBINED SINGLE LIMIT $(Ea accident) ANY AUTO BODILY INJURY (Per person) $OWNED SCHEDULED BODILY INJURY (Per accident) $AUTOS ONLY AUTOS HIRED NON-OWNED PROPERTY DAMAGE $AUTOS ONLY AUTOS ONLY (Per accident) $ OCCUR EACH OCCURRENCE CLAIMS-MADE AGGREGATE $ DED RETENTION $ PER OTH-STATUTE ER E.L. EACH ACCIDENT E.L. DISEASE - EA EMPLOYEE $If yes, describe under E.L. DISEASE - POLICY LIMITDESCRIPTION OF OPERATIONS below INSURER(S) AFFORDING COVERAGE NAIC # COMMERCIAL GENERAL LIABILITY Y / N N / A (Mandatory in NH) SHOULD ANY OF THE ABOVE DESCRIBED POLICIES BE CANCELLED BEFORE THE EXPIRATION DATE THEREOF, NOTICE WILL BE DELIVERED IN ACCORDANCE WITH THE POLICY PROVISIONS. THIS IS TO CERTIFY THAT THE POLICIES OF INSURANCE LISTED BELOW HAVE BEEN ISSUED TO THE INSURED NAMED ABOVE FOR THE POLICY PERIODINDICATED. NOTWITHSTANDING ANY REQUIREMENT, TERM OR CONDITION OF ANY CONTRACT OR OTHER DOCUMENT WITH RESPECT TO WHICH THIS CERTIFICATE MAY BE ISSUED OR MAY PERTAIN, THE INSURANCE AFFORDED BY THE POLICIES DESCRIBED HEREIN IS SUBJECT TO ALL THE TERMS,EXCLUSIONS AND CONDITIONS OF SUCH POLICIES. LIMITS SHOWN MAY HAVE BEEN REDUCED BY PAID CLAIMS. THIS CERTIFICATE IS ISSUED AS A MATTER OF INFORMATION ONLY AND CONFERS NO RIGHTS UPON THE CERTIFICATE HOLDER. THIS CERTIFICATE DOES NOT AFFIRMATIVELY OR NEGATIVELY AMEND, EXTEND OR ALTER THE COVERAGE AFFORDED BY THE POLICIES BELOW. THIS CERTIFICATE OF INSURANCE DOES NOT CONSTITUTE A CONTRACT BETWEEN THE ISSUING INSURER(S), AUTHORIZED REPRESENTATIVE OR PRODUCER, AND THE CERTIFICATE HOLDER. IMPORTANT: If the certificate holder is an ADDITIONAL INSURED, the policy(ies) must have ADDITIONAL INSURED provisions or be endorsed. If SUBROGATION IS WAIVED, subject to the terms and conditions of the policy, certain policies may require an endorsement. A statement on this certificate does not confer rights to the certificate holder in lieu of such endorsement(s). COVERAGES CERTIFICATE NUMBER:REVISION NUMBER: CERTIFICATE HOLDER CANCELLATION © 1988-2015 ACORD CORPORATION. All rights reserved.ACORD 25 (2016/03) CERTIFICATE OF LIABILITY INSURANCE DATE (MM/DD/YYYY) $ $ $ $ $ The ACORD name and logo are registered marks of ACORD 7/14/2020 (317) 808-7711 20443 Stoeppelwerth and Associates, Inc. and Sand Key Properties 7965 East 106th Street Fishers, IN 46038 20478 A 1,000,000 6079062911 8/1/2020 8/1/2021 100,000 15,000 1,000,000 2,000,000 2,000,000 1,000,000B BUA6043009424 8/1/2020 8/1/2021 2,000,000A CUE6079062925 8/1/2020 8/1/2021 2,000,000 10,000 2,000,000 A WC6043009438 8/1/2020 8/1/2021 1,000,000 N 1,000,000 1,000,000 A Commercial Property 6079062911 8/1/2020 Buildings 2,230,268 A Prof. Liability AEH008216301 1/28/2020 1/28/2021 $2,000,000 agg 2,000,000 TO WHOM IT MAY CONCERN STOEAND-01 KEADAMS Conner Insurance Inc. 8445 Keystone Crossing Suite 200 Indianapolis, IN 46240 Continental Casualty Company National Fire Insurance Company of Hartford X 8/1/2021 X X X X X X X X X 03/15/2021 Page 4 of 31 DRAINAGE NARRATIVE JACKSON’S GRANT VILLAGE JOB #60160JGV INTRODUCTION Republic Development LLC is proposing the development of a mixed use subdivision in Hamilton County to be known as Jackson’s Grant Village The site is located near 116th St and Spring Mill Rd. The site is more specifically located in a part of the Southeast Quarter of Section 34, Township 18 North, Range 3 East of Clay Township, Hamilton County, Indiana. EXISTING SITE CONDITIONS Jackson’s Grant Village will be located south of the Jackson’s Grant Development. The existing site is split into three drainage basins, with one draining to the north and west into William’s Creek, and the two southerly basins draining south through existing culverts into a developed area that then drain into Williams Creek. Based on existing topography, it appears that there will be no offsite drainage onto the site. According to FEMA FIRM panel 18057C0208G the site lies within Zone X, Area of Minimal Flood Hazard. The site is made up of type B, Brookston soils, as well as type C, Crosby and Miami soils. Surrounding land use are large single family homes to the west, residential to the north and residential to the south. PROPOSED SITE CONDITIONS In order to determine the pre-developed allowable release rates the entire site has been delineated minus any areas of offsite drainage. In early discussions with Greg Hoyes with the Hamilton County Surveyors Office (HCSO), it was requested that the whole development be allowed to drain to the northern portion of the site that drains into Williams Creek as the southern outlets appear to be too shallow to take the onsite water. In principle he agreed, as long as the final discharge was less than the existing conditions flows to that site. Therefore, the whole site acreage was then applied to the 0.1 cfs per acre and the 0.3 cfs per acre. A copy of that correspondence is provided in the Appendix of this drainage report. Additional discussions with the HCSO, they requested that we provided detention for the existing residential property when it develops in the future. For that reason, the full 24.22 acres is used for the release rate. Table 2: Proposed Site Conditions – Onsite Release Rates Storm Event 10-Year 100-Year Unit Allowable Release Rate 0.1 cfs/acre 0.3 cfs/acre Onsite Acreage 24.22 = acres 24.22 = acres Calculation 0.1 cfs/acre x acres 0.3 cfs/acre x acres Onsite Allowable Release Rates 2.42 cfs 7.27 cfs NW Outlet Acreage 5.82 = acres 5.82 = acres Discharge (ICPR NW Basin Summary) 6.84 cfs 17.64 cfs Allowable Release Rates 2.42 cfs 7.27 cfs 03/15/2021 Page 5 of 31 There is one pond, identified as Lake 1, located on this site in the Northwest corner that will take all proposed onsite and outlet into William’s Creek. There is no offsite draining to the proposed area. Table 3: Proposed Site Conditions – Overall Release Rates total from Outlet 1 in the modeling Storm Event 2-Year 10-Year 100-Year Proposed Overall Release Rates 1.24 cfs 1.96 cfs 7.22 cfs The proposed peak discharges are based on TR-55 methodology. A detention analysis was performed using the 2, 10 and 100-year storm events and their corresponding 24-hour rainfall depths. The NRCS Type II rainfall distribution was used to generate the hydrographs. WATER QUALITY Water quality for the site will be handled via wet detention pond and hydrodynamic separators for the areas draining into Lake 1. Lake 1 will have an outlet control structure with orifices that have been sized to meet the allowable release rates while ensuring the sediment settles to the bottom before being released. REFERENCES Design and data methods are based on the following references: 1. Hamilton County Stormwater Technical Standards Manual 2. City of Carmel Stormwater Technical Standards 3. HERPICC Stormwater Drainage Manual 4. USDA – Urban Hydrology for Small Watersheds 5. USDA – Soil Conservation Service 03/15/2021 Page 6 of 31 EXHIBITS 1 LOCATION MAP 2 FLOODPLAIN MAP 3 SOILS MAP AND REPORT 4 HAMLTON COUNTY RAINFALL DATA 03/15/2021 Page 7 of 31 Imagery ©2020 IndianaMap Framework Data, Maxar Technologies, USDA Farm Service Agency, Map data ©2020 100 ft Jackson's Grant Village Location Map This document was created by an application that isn’t licensed to use novaPDF. Purchase a license to generate PDF files without this notice.03/15/2021 Page 8 of 31 Hydrologic Soil Group—Hamilton County, Indiana (Overall Existing_line) Natural Resources Conservation Service Web Soil Survey National Cooperative Soil Survey 9/14/2020 Page 1 of 4442321044232704423330442339044234504423510442321044232704423330442339044234504423510570920570980571040571100571160571220571280571340571400571460 570920 570980 571040 571100 571160 571220 571280 571340 571400 571460 39° 57' 32'' N 86° 10' 11'' W39° 57' 32'' N86° 9' 47'' W39° 57' 20'' N 86° 10' 11'' W39° 57' 20'' N 86° 9' 47'' WN Map projection: Web Mercator Corner coordinates: WGS84 Edge tics: UTM Zone 16N WGS84 0 100 200 400 600 Feet 0 35 70 140 210 Meters Map Scale: 1:2,550 if printed on A landscape (11" x 8.5") sheet. Soil Map may not be valid at this scale.03/15/2021 Page 9 of 31 MAP LEGEND MAP INFORMATION Area of Interest (AOI) Area of Interest (AOI) Soils Soil Rating Polygons A A/D B B/D C C/D D Not rated or not available Soil Rating Lines A A/D B B/D C C/D D Not rated or not available Soil Rating Points A A/D B B/D C C/D D Not rated or not available Water Features Streams and Canals Transportation Rails Interstate Highways US Routes Major Roads Local Roads Background Aerial Photography The soil surveys that comprise your AOI were mapped at 1:15,800. Warning: Soil Map may not be valid at this scale. Enlargement of maps beyond the scale of mapping can cause misunderstanding of the detail of mapping and accuracy of soil line placement. The maps do not show the small areas of contrasting soils that could have been shown at a more detailed scale. Please rely on the bar scale on each map sheet for map measurements. Source of Map: Natural Resources Conservation Service Web Soil Survey URL: Coordinate System: Web Mercator (EPSG:3857) Maps from the Web Soil Survey are based on the Web Mercator projection, which preserves direction and shape but distorts distance and area. A projection that preserves area, such as the Albers equal-area conic projection, should be used if more accurate calculations of distance or area are required. This product is generated from the USDA-NRCS certified data as of the version date(s) listed below. Soil Survey Area: Hamilton County, Indiana Survey Area Data: Version 21, Jun 4, 2020 Soil map units are labeled (as space allows) for map scales 1:50,000 or larger. Date(s) aerial images were photographed: Aug 1, 2018—Sep 30, 2018 The orthophoto or other base map on which the soil lines were compiled and digitized probably differs from the background imagery displayed on these maps. As a result, some minor shifting of map unit boundaries may be evident. Hydrologic Soil Group—Hamilton County, Indiana (Overall Existing_line) Natural Resources Conservation Service Web Soil Survey National Cooperative Soil Survey 9/14/2020 Page 2 of 403/15/2021 Page 10 of 31 Hydrologic Soil Group Map unit symbol Map unit name Rating Acres in AOI Percent of AOI Br Brookston silty clay loam, 0 to 2 percent slopes B/D 6.5 26.8% CrA Crosby silt loam, fine- loamy subsoil, 0 to 2 percent slopes C/D 13.2 54.5% MmD2 Miami silt loam, 12 to 18 percent slopes, eroded C 0.4 1.4% UbaA Urban land-Brookston complex, 0 to 2 percent slopes 0.2 0.7% YbvA Brookston silty clay loam-Urban land complex, 0 to 2 percent slopes B/D 0.1 0.4% YclA Crosby silt loam, fine- loamy subsoil-Urban land complex, 0 to 2 percent slopes C/D 3.9 16.1% Totals for Area of Interest 24.2 100.0% Hydrologic Soil Group—Hamilton County, Indiana Overall Existing_line Natural Resources Conservation Service Web Soil Survey National Cooperative Soil Survey 9/14/2020 Page 3 of 4 03/15/2021 Page 11 of 31 Description Hydrologic soil groups are based on estimates of runoff potential. Soils are assigned to one of four groups according to the rate of water infiltration when the soils are not protected by vegetation, are thoroughly wet, and receive precipitation from long-duration storms. The soils in the United States are assigned to four groups (A, B, C, and D) and three dual classes (A/D, B/D, and C/D). The groups are defined as follows: Group A. Soils having a high infiltration rate (low runoff potential) when thoroughly wet. These consist mainly of deep, well drained to excessively drained sands or gravelly sands. These soils have a high rate of water transmission. Group B. Soils having a moderate infiltration rate when thoroughly wet. These consist chiefly of moderately deep or deep, moderately well drained or well drained soils that have moderately fine texture to moderately coarse texture. These soils have a moderate rate of water transmission. Group C. Soils having a slow infiltration rate when thoroughly wet. These consist chiefly of soils having a layer that impedes the downward movement of water or soils of moderately fine texture or fine texture. These soils have a slow rate of water transmission. Group D. Soils having a very slow infiltration rate (high runoff potential) when thoroughly wet. These consist chiefly of clays that have a high shrink-swell potential, soils that have a high water table, soils that have a claypan or clay layer at or near the surface, and soils that are shallow over nearly impervious material. These soils have a very slow rate of water transmission. If a soil is assigned to a dual hydrologic group (A/D, B/D, or C/D), the first letter is for drained areas and the second is for undrained areas. Only the soils that in their natural condition are in group D are assigned to dual classes. Rating Options Aggregation Method: Dominant Condition Component Percent Cutoff: None Specified Tie-break Rule: Higher Hydrologic Soil Group—Hamilton County, Indiana Overall Existing_line Natural Resources Conservation Service Web Soil Survey National Cooperative Soil Survey 9/14/2020 Page 4 of 4 03/15/2021 Page 12 of 31 USGS The National Map: Orthoimagery. Data refreshed April 2020 National Flood Hazard Layer FIRMette 0 500 1,000 1,500 2,000250 Feet Ü SEE FIS REPORT FOR DETAILED LEGEND AND INDEX MAP FOR FIRM PANEL LAYOUT SPECIAL FLOOD HAZARD AREAS Without Base Flood Elevation (BFE) Zone A, V, A99 With BFE or DepthZone AE, AO, AH, VE, AR Regulatory Floodway 0.2% Annual Chance Flood Hazard, Areas of 1% annual chance flood with average depth less than one foot or with drainage areas of less than one square mileZone X Future Conditions 1% Annual Chance Flood HazardZone X Area with Reduced Flood Risk due to Levee. See Notes.Zone X Area with Flood Risk due to LeveeZone D NO SCREEN Area of Minimal Flood Hazard Zone X Area of Undetermined Flood HazardZone D Channel, Culvert, or Storm Sewer Levee, Dike, or Floodwall Cross Sections with 1% Annual Chance 17.5 Water Surface Elevation Coastal Transect Coastal Transect Baseline Profile Baseline Hydrographic Feature Base Flood Elevation Line (BFE) Effective LOMRs Limit of Study Jurisdiction Boundary Digital Data Available No Digital Data Available Unmapped This map complies with FEMA's standards for the use of digital flood maps if it is not void as described below. The basemap shown complies with FEMA's basemap accuracy standards The flood hazard information is derived directly from the authoritative NFHL web services provided by FEMA. This map was exported on 9/14/2020 at 10:18 AM and does not reflect changes or amendments subsequent to this date and time. The NFHL and effective information may change or become superseded by new data over time. This map image is void if the one or more of the following map elements do not appear: basemap imagery, flood zone labels, legend, scale bar, map creation date, community identifiers, FIRM panel number, and FIRM effective date. Map images for unmapped and unmodernized areas cannot be used for regulatory purposes. Legend OTHER AREAS OF FLOOD HAZARD OTHER AREAS GENERAL STRUCTURES OTHER FEATURES MAP PANELS 8 B 20.2 The pin displayed on the map is an approximate point selected by the user and does not represent an authoritative property location. 1:6,000 86°10'19"W 39°57'42"N 86°9'41"W 39°57'14"N03/15/2021 Page 13 of 31 03/15/2021 Page 14 of 31 03/15/2021 Page 15 of 31 APPENDIX A EXISTING SITE CONDITIONS CALCULATIONS 03/15/2021 Page 16 of 31 1 Brian Brown Subject:FW: Jackson's Grant From: Greg R. Hoyes <Greg.Hoyes@hamiltoncounty.in.gov> Sent: Friday, October 19, 2018 8:18 AM To: Gordan Kritz <gkritz@Stoeppelwerth.com> Cc: Brett Huff <BHuff@Stoeppelwerth.com> Subject: RE: Jackson's Grant Gordon I know it is not as described in the HCSWTSM, but you can take it all to the NW outlet point at the 0.1 and 0.3, as long as that is not exceeding the existing to the discharge point. My reasoning behind that is it is all Williams Creek, just a matter of how it gets there. Can fully understand the road culvert do not have adequate depth to allow for reasonable sized detention. Does that work for you? Greg Hoyes, AC, CFM, CPESC Plan Reviewer Hamilton County Surveyor's Office From: Gordan Kritz [mailto:gkritz@Stoeppelwerth.com] Sent: Thursday, October 18, 2018 2:10 PM To: Greg R. Hoyes <Greg.Hoyes@hamiltoncounty.in.gov> Cc: Brett Huff <BHuff@Stoeppelwerth.com> Subject: Jackson's Grant Greg, We are working on northwest corner of 116th & Springmill Rd. – adjacent to Jackson’s Grant. Early in the zoning process, this site was a part of the overall PUD / Master Plan, but, I believe, was removed prior to zoning approval for a few different reasons. The drainage is tricky on this site – the lowest outlet is at the northwest corner which is a small tributary to Williams Creek; however, only about 5.7acres of this site drain that direction. The rest of the site drains to the southwest and southeast corners to shallow pipes that do not allow retention at those corners given the inverts. So, in order to drain the site, I need to buck drainage areas and take the entire site to the northwest corner. The allowable release rates for Jackson’s Grant is 10yr-138cfs / 100yr-328cfs and the proposed is 10yr-128 / 100yr-308. The allowable for this site is 10yr-0.57cfs / 100yr-1.71cfs (based of 5.7acres) and the proposed, from a preliminary drainage model, is 10yr-1.67cfs / 100yr-6.23cfs. What are your thoughts on allowing this site to use some of the remaining allowable release rates from the Jackson’s Grant masterplan? We would be adding 1.1cfs in the 10yr (1.67-0.57) and 4.52cfs in the 100yr (6.23-1.71); which would still be under the overall allowable of 10yr-138cfs / 100yr-328cfs. I don’t think any of the above would be an issue if this area was a part of the overall PUD, I just don’t believe it is at this time. Hope this all made sense. Let me know your thoughts and if you have any questions. Thanks Greg. GORDAN D. KRITZ 03/15/2021 Page 17 of 31 2 Land Planner STOEPPELWERTH & ASSOCIATES, Inc. 7965 East 106th Street Fishers, Indiana 46038 PH: 570-4701 FAX: 849-5942 Please consider the environment before printing this e-mail Waiver of Claims for use of Electronic Data: Information in the drawing is an instrument of service prepared by Stoeppelwerth & Associates, Inc. and is being provided solely as a convenience to the user. The nature of electronic media, through either intentional or unintentional means, Stoeppelwerth & Associates, Inc. does not make any express or implied warranty or liability for consequential damages for the information contained herein. The information in this email may contain confidential information and is intended solely for the attention and use of the named addressee(s). It must not be disclosed to any person(s) without authorization. If you are not the intended recipient, or a person responsible for delivering it to the intended recipient, you are not authorized to, and must not disclose, copy, distribute, or retain this message or any part of it. If you have received this communication in error, please notify the sender immediately. 03/15/2021 Page 18 of 31 Job #60160JGV Pre-Developed ICPR 75 Soil Group Cover Description (cover type, treatment, and hydrologic condition)CN Area (Ac.) CN * Area C Row Crops (Good) 82 2.73 224 C Woods (Good) 70 1.82 127 B Open Space (Good) 61 0.83 51 C Woods (Good) 70 0.38 26 B Impervious 98 0.06 6 Total = 5.82 434 78 Soil Group Cover Description (cover type, treatment, and hydrologic condition)CN Area (Ac.) CN * Area B Row Crops (Good) 75 3.40 255 C Open Space (Good) 74 1.90 140 C Row Crops (Good) 82 5.74 470 Total = 11.03 866 74 Soil Group Cover Description (cover type, treatment, and hydrologic condition)CN Area (Ac.) CN * Area C Woods (Good) 70 1.27 89 C Row Crops (Good) 82 3.35 275 B Woods (Good) 55 1.10 60 B Row Crops (Good) 75 1.65 124 Total = 7.37 548 C NumbersJackson's Grant Village EX East to Williams Creek CN = EX North to Williams Creek CN = EX West to Williams Creek CN = *Onsite Curve Number adjusted to the next less infiltrating capacity category per ordinance. 03/15/2021 Page 19 of 31 Job #60160JGVDescriptionn = L =P2 =s =Tt = .007(nL)0.8/(P20.5s0.4)Descriptions = V = L = Tt = L/V Description V = L = Tt = L/VTc (total)Tc (total)(ft) (in) (ft/ft)(hrs)Paved / Unpaved (ft/ft) (ft/s) (ft) (hrs)(hrs)(min)EX North Short Grass Praire 0.15 100 2.66 0.0097 0.2392Unpaved 0.011.59470 0.0822 Channel 3.00 357 0.0331 0.354421.3EX West Short Grass Praire 0.15 100 2.66 0.0043 0.3312Unpaved 0.004 1.06 1059 0.2780 Channel 3.00 0 0.0000 0.609336.6EX EastShort Grass Praire 0.15 100 2.66 0.0113 0.2251Unpaved 0.011 1.72 582 0.0943 Channel 3.00 0 0.0000 0.319319.2BasinTime of ConcentrationsPre-Developed ICPRChannel / Pipe FlowTotal ToCSheet FlowShallow Concentrated FlowJackson's Grant Village03/15/2021 Page 20 of 31 APPENDIX B PRELIM PROPOSED SITE CONDITIONS CALCULATIONS 03/15/2021 Page 21 of 31 Job #60160JGV Post-Developed ICPR 89 Soil Group Cover Description (cover type, treatment, and hydrologic condition)CN Area (Ac.) CN * Area D Residential 2 ac 82 1.86 153 D Residential 1/4 ac 87 9.95 866 D Residential Town Houses 92 12.41 1142 Total = 24.22 2160 C Numbers Lake 1 CN = Jackson's Grant Village *Onsite Curve Number adjusted to the next less infiltrating capacity category per ordinance. 03/15/2021 Page 22 of 31 Jacksons Grant Village ICPR 1 S:\60160JGV\Drainage\ICPR\Jacksons Grant Village\3/15/2021 15:24 Background Image: JacksonGrantAll Simple Basin: BAS PRE NW Scenario: Existing Node: PRE - NW OUTLET Hydrograph Method: NRCS Unit Hydrograph Infiltration Method: Curve Number Time of Concentration: 21.3000 min Max Allowable Q: 999999.00 cfs Time Shift: 0.0000 hr Unit Hydrograph: Uh484 Peaking Factor: 484.0 Area: 5.8200 ac Curve Number: 75.0 % Impervious: 0.00 % DCIA: 0.00 % Direct: 0.00 Rainfall Name: 03/15/2021 Page 23 of 31 Jacksons Grant Village ICPR 2 S:\60160JGV\Drainage\ICPR\Jacksons Grant Village\3/15/2021 15:24 Comment: Simple Basin: BAS L1 Scenario: Proposed Node: LAKE 1 Hydrograph Method: NRCS Unit Hydrograph Infiltration Method: Curve Number Time of Concentration: 20.0000 min Max Allowable Q: 999999.00 cfs Time Shift: 0.0000 hr Unit Hydrograph: Uh484 Peaking Factor: 484.0 Area: 24.2200 ac Curve Number: 89.0 % Impervious: 0.00 % DCIA: 0.00 % Direct: 0.00 Rainfall Name: Comment: Drop Structure Link: L1 - OUT Scenario: Proposed From Node: LAKE 1 To Node: OUTLET Link Count: 1 Flow Direction: Both Solution: Combine Increments: 10 Pipe Count: 1 Damping: 0.0000 ft Length: 200.00 ft FHWA Code: 1 Entr Loss Coef: 0.00 Exit Loss Coef: 1.00 Bend Loss Coef: 0.00 Bend Location: 0.00 dec Energy Switch: Energy Upstream Pipe Downstream Pipe Invert: 847.00 ft Invert: 846.00 ft Manning's N: 0.0130 Manning's N: 0.0130 Geometry: Circular Geometry: Circular Max Depth: 1.50 ft Max Depth: 1.50 ft Bottom Clip Default: 0.50 ft Default: 0.00 ft Op Table:Op Table: Ref Node:Ref Node: Manning's N: 0.0130 Manning's N: 0.0130 Top Clip Default: 0.00 ft Default: 0.00 ft Op Table:Op Table: Ref Node:Ref Node: Manning's N: 0.0130 Manning's N: 0.0130 Pipe Comment: Weir Component Weir: 1 Weir Count: 1 Weir Flow Direction: Both Damping: 0.0000 ft Bottom Clip Default: 0.00 ft Op Table: Ref Node: 03/15/2021 Page 24 of 31 Jacksons Grant Village ICPR 3 S:\60160JGV\Drainage\ICPR\Jacksons Grant Village\3/15/2021 15:24 Weir Type: Sharp Crested Vertical Geometry Type: Circular Invert: 847.00 ft Control Elevation: 847.00 ft Max Depth: 0.50 ft Top Clip Default: 0.00 ft Op Table: Ref Node: Discharge Coefficients Weir Default: 3.200 Weir Table: Orifice Default: 0.600 Orifice Table: Weir Comment: Weir Component Weir: 2 Weir Count: 1 Weir Flow Direction: Both Damping: 0.0000 ft Weir Type: Sharp Crested Vertical Geometry Type: Rectangular Invert: 851.10 ft Control Elevation: 851.10 ft Max Depth: 0.67 ft Max Width: 1.00 ft Fillet: 0.00 ft Bottom Clip Default: 0.00 ft Op Table: Ref Node: Top Clip Default: 0.00 ft Op Table: Ref Node: Discharge Coefficients Weir Default: 3.200 Weir Table: Orifice Default: 0.600 Orifice Table: Weir Comment: Weir Component Weir: 3 Weir Count: 1 Weir Flow Direction: None Damping: 0.0000 ft Weir Type: Horizontal Geometry Type: Rectangular Invert: 853.50 ft Control Elevation: 853.50 ft Max Depth: 3.00 ft Max Width: 3.00 ft Fillet: 0.00 ft Bottom Clip Default: 0.00 ft Op Table: Ref Node: Top Clip Default: 0.00 ft Op Table: Ref Node: Discharge Coefficients Weir Default: 3.200 Weir Table: Orifice Default: 0.600 Orifice Table: Weir Comment: Drop Structure Comment: Node: PRE - NW OUTLET 03/15/2021 Page 25 of 31 Jacksons Grant Village ICPR 4 S:\60160JGV\Drainage\ICPR\Jacksons Grant Village\3/15/2021 15:24 Scenario: Existing Type: Time/Stage Base Flow: 0.00 cfs Initial Stage: 841.00 ft Warning Stage: 853.00 ft Boundary Stage: Year Month Day Hour Stage [ft] 0 0 0 0.0000 841.00 0 0 0 12.0000 853.00 0 0 0 30.0000 841.00 Comment: Node: LAKE 1 Scenario: Proposed Type: Stage/Area Base Flow: 0.00 cfs Initial Stage: 847.00 ft Warning Stage: 853.50 ft Stage [ft]Area [ac]Area [ft2] 847.00 0.6900 30056 848.00 0.7600 33106 849.00 0.8400 36590 850.00 0.9200 40075 851.00 1.0000 43560 852.00 1.0800 47045 853.00 1.1700 50965 854.50 1.2600 54886 Comment: Node: OUTLET Scenario: Proposed Type: Time/Stage Base Flow: 0.00 cfs Initial Stage: 846.00 ft Warning Stage: 847.50 ft Boundary Stage: Year Month Day Hour Stage [ft] 0 0 0 0.0000 846.00 0 0 0 12.0000 847.50 0 0 0 30.0000 846.00 03/15/2021 Page 26 of 31 Jacksons Grant Village ICPR 5 S:\60160JGV\Drainage\ICPR\Jacksons Grant Village\3/15/2021 15:24 Comment: Simple Basin Runoff Summary [Existing] Basin Name Sim Name Max Flow [cfs] Time to Max Flow [hrs] Total Rainfall [in] Total Runoff [in] Area [ac] Equivalent Curve Number % Imperv % DCIA BAS PRE NW 002yr 3.18 12.0833 2.66 0.75 5.8200 75.0 0.00 0.00 BAS PRE NW 010yr 7.23 12.0500 3.83 1.54 5.8200 75.0 0.00 0.00 BAS PRE NW 100yr 18.20 12.0167 6.46 3.68 5.8200 75.0 0.00 0.00 Simple Basin Runoff Summary [Proposed] Basin Name Sim Name Max Flow [cfs] Time to Max Flow [hrs] Total Rainfall [in] Total Runoff [in] Area [ac] Equivalent Curve Number % Imperv % DCIA BAS L1 002yr 33.83 12.0000 2.66 1.60 24.2200 89.0 0.00 0.00 BAS L1 010yr 56.78 11.9833 3.83 2.67 24.2200 89.0 0.00 0.00 BAS L1 100yr 109.10 11.9833 6.46 5.19 24.2200 89.0 0.00 0.00 Link Min/Max Conditions with Times [Proposed] Link Name Sim Name Max Flow [cfs] Min Flow [cfs] Min/Max Delta Flow [cfs] Max Us Velocity [fps] Max Ds Velocity [fps] Time to Max Flow [hrs] Time to Min Flow [hrs] Time to Min/Max Delta Flow [hrs] Time to Max Us Velocity [hrs] Time to Max Ds Velocity [hrs] L1 - OUT - Pipe 002yr 1.29 0.00 -0.02 0.00 0.00 17.5491 0.0000 11.8489 0.0000 0.0000 L1 - OUT - Weir: 1 002yr 1.29 0.00 -0.04 6.58 6.58 17.5325 0.0000 11.8489 17.5325 17.5325 L1 - OUT - Weir: 2 002yr 0.00 0.00 0.00 0.00 0.00 0.0000 0.0000 0.0000 0.0000 0.0000 L1 - OUT - Weir: 3 002yr 0.00 0.00 0.00 0.00 0.00 0.0000 0.0000 0.0000 0.0000 0.0000 L1 - OUT - 010yr 2.33 0.00 -0.02 0.00 0.00 15.4066 0.0000 11.3750 0.0000 0.0000 03/15/2021 Page 27 of 31 Jacksons Grant Village ICPR 6 S:\60160JGV\Drainage\ICPR\Jacksons Grant Village\3/15/2021 15:24 Link Name Sim Name Max Flow [cfs] Min Flow [cfs] Min/Max Delta Flow [cfs] Max Us Velocity [fps] Max Ds Velocity [fps] Time to Max Flow [hrs] Time to Min Flow [hrs] Time to Min/Max Delta Flow [hrs] Time to Max Us Velocity [hrs] Time to Max Ds Velocity [hrs] Pipe L1 - OUT - Weir: 1 010yr 1.71 0.00 -0.04 8.70 8.70 15.3900 0.0000 11.3750 15.3900 15.3900 L1 - OUT - Weir: 2 010yr 0.62 0.00 0.00 1.85 1.85 15.3900 0.0000 17.6900 15.3900 15.3900 L1 - OUT - Weir: 3 010yr 0.00 0.00 0.00 0.00 0.00 0.0000 0.0000 0.0000 0.0000 0.0000 L1 - OUT - Pipe 100yr 7.25 0.00 -0.02 0.00 0.00 13.8427 0.0000 9.1164 0.0000 0.0000 L1 - OUT - Weir: 1 100yr 2.02 0.00 -0.04 10.30 10.30 13.8357 0.0000 9.1164 13.8357 13.8357 L1 - OUT - Weir: 2 100yr 5.23 0.00 0.00 7.85 7.85 13.8357 0.0000 24.6693 13.8357 13.8357 L1 - OUT - Weir: 3 100yr 0.00 0.00 0.00 0.00 0.00 0.0000 0.0000 0.0000 0.0000 0.0000 Node Max Conditions w/ Times [Existing] Node Name Sim Name Warning Stage [ft] Max Stage [ft] Min/Max Delta Stage [ft] Max Total Inflow [cfs] Max Total Outflow [cfs] Max Surface Area [ft2] Time to Max Stage [hr] Time to Min/Max Delta Stage [hr] Time to Max Total Inflow [hr] Time to Max Total Outflow [hr] PRE - NW OUTLET 002yr 853.00 852.99 0.0167 3.18 0.00 0 11.9938 1.4938 12.0938 0.0000 PRE - NW OUTLET 010yr 853.00 852.99 0.0167 7.22 0.00 0 11.9938 1.4938 12.0438 0.0000 PRE - NW OUTLET 100yr 853.00 852.99 0.0167 18.19 0.00 0 11.9938 1.4938 12.0271 0.0000 Node Max Conditions w/ Times [Proposed] 03/15/2021 Page 28 of 31 Jacksons Grant Village ICPR 7 S:\60160JGV\Drainage\ICPR\Jacksons Grant Village\3/15/2021 15:24 Node Name Sim Name Warning Stage [ft] Max Stage [ft] Min/Max Delta Stage [ft] Max Total Inflow [cfs] Max Total Outflow [cfs] Max Surface Area [ft2] Time to Max Stage [hr] Time to Min/Max Delta Stage [hr] Time to Max Total Inflow [hr] Time to Max Total Outflow [hr] LAKE 1 002yr 853.50 849.80 0.0010 33.83 1.29 39389 17.5325 11.9265 11.9999 17.5325 LAKE 1 010yr 853.50 851.44 0.0010 56.78 2.33 45078 15.3900 11.6446 11.9833 15.3900 LAKE 1 100yr 853.50 854.09 -0.0010 109.10 7.25 53820 13.8357 17.1684 11.9833 13.8357 OUTLET 002yr 847.50 847.50 0.0021 1.29 0.00 0 12.0001 1.4771 17.5491 0.0000 OUTLET 010yr 847.50 847.50 0.0021 2.33 0.00 0 12.0001 1.4771 15.4066 0.0000 OUTLET 100yr 847.50 847.50 0.0021 7.25 0.00 0 12.0000 1.4771 13.8427 0.0000 03/15/2021 Page 29 of 31 Lake # 1 Q100=109 c.f.s.100 Year Elev.= 853.34 Top of Bank= 855.50 Spillway Elev.= 853.50 CW=2.92 Highwater= 854.50 Freeboard= 1.0 h= 1.00 FT Minimum Flat Bottom Length LW=38.66 FT Plan Length= 40 SS=4 :1 Side slopes Jackson's Grant Village Lake Spillway Calculations Job #60160JGV 𝐿ௐ = 𝑄ଵ଴଴ ∗1.25 𝐶ௐ ∗ ℎ ଷ ଶ 03/15/2021 Page 30 of 31 APPENDIX C BASIN MAPS 03/15/2021 Page 31 of 31 Ex. Basin East 7.37 Ac. Ex. Basin West 11.03 Ac. Ex. Basin North 5.82 Ac.DATEMARKREVISIONSBYS & A JOB NO. SHEET NO. DRAWN BY:CHECKED BY:S T O E P P E L W E R T HA L W A Y S O N7965 East 106th Street, Fishers, IN 46038-2505phone: 317.849.5935 fax: 317.849.5942File Name:S:\60160JGV\Drainage\Basin Maps\Jackson's Grant Village Basin Maps.dwg - EXISTING CONDITIONS BASIN MAPModified / By:September 14, 2020 8:32:47 AM / nstevensPlotted / By:September 14, 2020 11:28:12 AM / Nicholas StevensEXISTING CONDITIONS MAPJACKSON'S GRANT VILLAGECARMEL, CLAY TOWNSHIPHAMILTON COUNTY, INDIANANES BMB 1 60160JGV LEGEND EXISTING STORM SEWER BASIN BREAKLINE PROPOSED STORM SEWER LAKE NORMAL POOLo o o 0 GRAPHIC SCALE ( IN FEET ) 50'25'50' 1" = 50 FT W W W W W WWWWWWWWWWW W W W W W WWW x x x x x x x x WWWWWWWW W WWWWWWW W W W W W tc-855.7 i-843.8 8+46.78854.80JG839 R500' B-BT.C.=853.88 850.23 N 7,856 sq.ft. 128 0.00 CL 141 0.00 BND 142 0.00 BND 143 0.00 BND 177 855.10 LOT 178 855.07 LOT 298 0.00 RW 299 857.50 RW 300 856.93 RW RW 303 0.00 RW 0.00 SAN-JG839 566 0.00 VLV 567 0.00 FHTEE 641 0.00 4'OS-RMP 671 854.00 TOB TOB 696 854.00 TOB 697 854.00 TOB 698 854.00 TOB 699 854.00 TOB 700 854.00 TOB 711 854.00 TOB 742 0.00 25'RAD SF 926 0.00 SF 927 0.00 SF 0.00 SF SF SF962 0.00 SF 963 0.00 SF 964 0.00 SF 965 0.00 SF 966 0.00 SF 967 0.00 SF 968 0.00 SF 969 0.00 SF 10503 858.20 CP/M4C MACH CNTRL 1100 858.39 ST1 1101 858.36 P3C CHR_B 1102 858.69 P3C CHR_E30.0'1113 854.14 ASW REDUCER 1114 854.57 ASW1 1115 855.03 ASW4 857.74 AS 855.69 AS AST ASTASTAST 857.55 A3_B3720 853.15 SET M4C 3721 0.00 SET M4C 3732 855.00 SET M4C 3740 858.31 SET M5 3741 854.87 SET M4C 858.19858.34858.42857.43857.19T.P.857.81858.04858.35858.18857.96858.19858.05857.82857.90858.20858.24857.95857.59857.86857.02856.83856.19856.36855.78855.54855.18855.38854.84854.65854.49853.80853.93853.23852.99852.63852.89853.20852.87853.08853.28853.41853.55853.64853.76853.76D 853.86GV853.85853.39853.23853.10853.18E.P. 849.85 STI12RCPWCES E.P.E.P. T.P.T.P.E.T. T.P. T.P. 850.13 STI15RCPWCES T.P.853.35852.75852.60851.16850.89850.66850.08850.53851.10852.40852.33852.67853.01853.22853.46853.69852.88853.52853.46853.70853.70853.51853.20853.26853.19853.24853.24853.14852.88852.48852.13852.21852.05852.25852.67852.67852.57852.03851.89851.90851.88851.84852.30852.05852.31852.49852.15852.14852.57852.85852.19852.36852.85849.68 STI12RCPWCES D 854.12854.66854.70854.23854.31854.29854.27854.69854.81854.29854.29854.27854.35854.86854.85852.64852.99853.55853.61853.08853.25853.80853.63853.16853.36852.85852.83852.89853.41853.30852.79852.85852.87852.80853.37852.76853.29853.07852.70852.34852.60852.24852.09852.10852.25852.51852.27852.64852.98853.20852.70T.P.853.04852.99852.78852.56852.91853.67853.54852.96852.67852.94853.43852.98853.45853.93854.11853.61TR 294 853.79 TR3 854.54854.00854.75855.28856.01855.50856.22856.74857.47857.02857.67858.19858.48859.00TR 311 859.21 TR3 858.89859.40859.64859.21859.28859.75859.62859.18858.90859.37TR322 859.25 TR3 858.89858.40857.79858.33857.89857.27P.W.P.856.48P.W.P. E.P. P.W.P.DYHP.W.P.854.83854.88854.59854.56854.43854.41854.69854.63854.78854.79854.84854.90854.84E.P.E.P.T.P.TV.P.854.31S 855.28855.54857.25857.40S 859.54859.29859.15859.29859.28859.25859.57859.78859.47859.56859.85859.76859.45859.19859.50859.15858.77858.12858.48857.74857.42856.70857.02856.25855.96855.24855.58854.86854.53854.11854.49854.32853.86853.46853.90853.74853.28853.36853.41853.37853.40853.43853.36853.39853.35853.29853.78853.74853.27853.34853.75854.14853.65854.19854.60854.61854.97855.62855.26855.96856.30856.95856.62857.38857.71858.42858.06858.66859.00859.48859.16859.43859.75859.86859.50859.42859.76859.60859.27859.20859.19447 857.71 M/5_SURVEY_SPIKE T E E E EEE GASGASOHE OHE OHE OHE OHE OHE OHE OHE OHE GAS GAS GAS GAS W W W W W W W W W W W W W Basin Lake 1 24.22 Ac. CN=89 ToC=20 DATEMARKREVISIONSBYS & A JOB NO. SHEET NO. DRAWN BY:CHECKED BY:S T O E P P E L W E R T HA L W A Y S O N7965 East 106th Street, Fishers, IN 46038-2505phone: 317.849.5935 fax: 317.849.5942File Name:S:\60160JGV\Drainage\Basin Maps\Jackson's Grant Village Basin Maps.dwg - POND ROUTING BASIN MAPModified / By:September 14, 2020 8:32:47 AM / nstevensPlotted / By:September 14, 2020 11:36:39 AM / Nicholas StevensPOND ROUTING BASIN MAPJACKSON'S GRANT VILLAGECARMEL, CLAY TOWNSHIPHAMILTON COUNTY, INDIANANES BMB 1 60160JGV LEGEND EXISTING STORM SEWER BASIN BREAKLINE PROPOSED STORM SEWER LAKE NORMAL POOLo o o 0 GRAPHIC SCALE ( IN FEET ) 50'25'50' 1" = 50 FT