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HomeMy WebLinkAboutDrainage Report 10505 North College Avenue | Indianapolis, IN 46280 | .www.weihe.net | (317) 846-6611 | (800) 452-6408 | Fax: (317) 843-0546 Allan H. Weihe, P.E., L.S., - Founder STORMWATER TECHNICAL REPORT For: THE RESERVE AT SPRINGMILL Springmill Road Carmel, Hamilton County Indiana Project #W21-0497 Prepared for: Pittman Partners PO Box 554 Carmel, IN 46082 Telephone (317) 590-5074 Contact: Steve Pittman E-mail: steve@pittmanpartners.com Prepared By: Travis P. Gaither, P.E. Checked By: Duane A. Sharrer, P.E. Certified By: Travis P. Gaither, P.E. Date: October 20, 2021 Revised: December 8, 2021 January 12, 2022 May 13, 2022 June 3, 2022 August 4, 2022 Stormwater Technical Report Prepared For: The Reserve at Springmill Carmel, IN Project #W21-0497 TABLE OF CONTENTS 1. Project Narrative a. Project Overview b. Pre-Developed Conditions c. Post-Developed Conditions d. Water Quality e. Exhibits 2. Overall Drainage Calculations a. Exhibits b. Impervious Area Calculations 3. Pipe Sizing Calculations a. Exhibit b. C Value/Time of Concentration c. Hydraflow Calculations d. Gutter Spread/Inlet Capacity 4. Water Quality Calculations a. Exhibit b. WQ CN Calculation c. ICPR Input Report d. ICPR Basin Report 5. Appendix a. The Reserve at Springmill Drainage Calculations dated 4/16/93 07/09/2021 Dimond Bros. Insurance, LLC 11708 North College Avenue Carmel IN 46032 Laurie Kay (317) 853-3572 (317) 853-3501 laurie.kay@dimondbros.com Weihe Engineers, Inc. 10505 North College Avenue Indianapolis IN 46280 Continental Casualty Company 20443 21-22 Prof/Poll Master A Professional Liability Pollution Incident Liability AEH591931393 07/03/2021 07/03/2022 Limit of Liability $2,000,000 Aggregate Limit $2,000,000 Deductible $25,000 Sample SHOULD ANY OF THE ABOVE DESCRIBED POLICIES BE CANCELLED BEFORE THE EXPIRATION DATE THEREOF, NOTICE WILL BE DELIVERED IN ACCORDANCE WITH THE POLICY PROVISIONS. INSURER(S) AFFORDING COVERAGE INSURER F : INSURER E : INSURER D : INSURER C : INSURER B : INSURER A : NAIC # NAME: CONTACT (A/C, No): FAX E-MAIL ADDRESS: PRODUCER (A/C, No, Ext): PHONE INSURED REVISION NUMBER:CERTIFICATE NUMBER:COVERAGES 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). 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. OTHER: (Per accident) (Ea accident) $ $ N / A SUBR WVD ADDL INSD THIS IS TO CERTIFY THAT THE POLICIES OF INSURANCE LISTED BELOW HAVE BEEN ISSUED TO THE INSURED NAMED ABOVE FOR THE POLICY PERIOD INDICATED. 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. $ $ $ $PROPERTY DAMAGE BODILY INJURY (Per accident) BODILY INJURY (Per person) COMBINED SINGLE LIMIT AUTOS ONLY AUTOSAUTOS ONLY NON-OWNED SCHEDULEDOWNED ANY AUTO AUTOMOBILE LIABILITY Y / N WORKERS COMPENSATION AND EMPLOYERS' LIABILITY OFFICER/MEMBER EXCLUDED? (Mandatory in NH) DESCRIPTION OF OPERATIONS below If yes, describe under ANY PROPRIETOR/PARTNER/EXECUTIVE $ $ $ E.L. DISEASE - POLICY LIMIT E.L. DISEASE - EA EMPLOYEE E.L. EACH ACCIDENT ER OTH- STATUTE PER LIMITS(MM/DD/YYYY) POLICY EXP (MM/DD/YYYY) POLICY EFF POLICY NUMBERTYPE OF INSURANCELTR INSR DESCRIPTION OF OPERATIONS / LOCATIONS / VEHICLES (ACORD 101, Additional Remarks Schedule, may be attached if more space is required) EXCESS LIAB UMBRELLA LIAB $EACH OCCURRENCE $AGGREGATE $ OCCUR CLAIMS-MADE DED RETENTION $ $PRODUCTS - COMP/OP AGG $GENERAL AGGREGATE $PERSONAL & ADV INJURY $MED EXP (Any one person) $EACH OCCURRENCE DAMAGE TO RENTED $PREMISES (Ea occurrence) COMMERCIAL GENERAL LIABILITY CLAIMS-MADE OCCUR GEN'L AGGREGATE LIMIT APPLIES PER: POLICY PRO- JECT LOC CERTIFICATE OF LIABILITY INSURANCE DATE (MM/DD/YYYY) CANCELLATION AUTHORIZED REPRESENTATIVE ACORD 25 (2016/03) © 1988-2015 ACORD CORPORATION. All rights reserved. CERTIFICATE HOLDER The ACORD name and logo are registered marks of ACORD HIRED AUTOS ONLY Weihe Engineers, Inc.Insured Multiple Names Additional Named Insureds Other Named Insureds OFAPPINF (02/2007)COPYRIGHT 2007, AMS SERVICES INC The Reserve at Springmill Weihe Engineers, INC. 8/4/2022 Stormwater Technical Report Prepared For: The Reserve at Springmill Carmel, IN Project #W21-0497 Project Overview: Pittman Partners is proposing to revise existing lots 69 and 70 of the overall residential subdivision known as “The Reserve at Springmill”. Lots 69 and 70 combine to cover 2.7 acres of land. Said overall development is located on the east side of Springmill Road between Illinois Street and 106th Street. The revisions to the lots are located on the east end of Sanner Court. Refer to Figure 1.1. The proposed development is on a site at a Latitude of N 39° 56' 21" and Longitude W 86° 09' 45", falling within Clay Township. The site is generally located in the Northwest Quarter of Section 11, Township 17 North, and Range 3 East, in Hamilton County, Indiana. Floodzone: Based upon a scaled interpretation of the Flood Insurance Map No.18057C0208G dated November 19, 2014 for Hamilton County, Indiana, the lots to be revised ARE NOT located within Zone AE (Special Flood Hazard Area inundated by 100-year flood-Base Flood Elevations determined). Refer to Figure 1.2. The Reserve at Springmill Weihe Engineers, INC. 8/4/2022 Pre-Developed Conditions: Lots 69 and 70 of the Reserve at Springmill had previously been covered with 3 buildings used for multiple purposes, asphalt drives and parking lot, sidewalks, playground, tennis court, shuffleboard, a pool, and concrete pool deck. Beginning in 2017, the various improvements listed above started to be demolished in phases. The demolition of the improvements was completed in 2019. The land is now covered with grass and trees that were salvaged from the demolition activities. Refer to Figure 1.3. The tract consists of the following soil types: Crosby Silt Loam-Urban Land Complex and Miami Silt Loam-Urban Land Complex. A soil map has been included with this report. An abbreviated NRCS Soils Report can be found in Section 1 of this report. Detailed topography from survey work by Weihe Engineers, Inc. was used to determine the Existing Conditions Exhibit. The existing high point on the lots is at elevation 845, near the center and southeast corner of the combined lots. A portion of the combined lots drain to the north to the perimeter of the overall development. The remainder of the combined lots drains to 3 existing rear yard inlets located along the eastern and southern boundary lines. These 3 existing inlets drain to the existing wet detention basin in the northwest corner of the overall development, adjacent to Springmill Road. The Reserve at Springmill Weihe Engineers, INC. 8/4/2022 Post-Developed Conditions: The proposed changes to Lots 69 and 70 include splitting the 2 lots into 6 lots. The 6 new lots will be numbered 75-80. This proposed change will require Sanner Court to be extended approximately 200’ to the east. Storm sewer inlets and piping will be installed to drain the proposed improvements. The pipe will flow south from Sanner Court, between Lots 75 and 76, and connect over the existing storm sewer pipe that flows west in the rear yard. The proposed storm sewer calculations will be provided for review at the time of construction plan submittal. Additionally, existing lots 68 and 71 will be replatted because of the change in the Sanner Court right of way from the movement of the cul-de-sac. Lot 68 has an existing house and driveway and 71 is vacant. Per correspondence with the City of Carmel, an impervious area comparison was created to show the maximum allowed impervious area of existing Lots 69 and 70 to the maximum allowed impervious area of proposed Lots 75-80. Included in the calculation for Lots 69 and 70 is the area of the existing cul-de-sac proposed for demolition, sidewalk around the cul-de-sac, and 35% maximum impervious area of the two lots. Included in the calculation for Lots 75-80 is the area of the road proposed for construction, sidewalk along the road and around the cul-de-sac, and % of maximum impervious area of the six lots. Lots 75, 76, 79, and 80 were calculated to have 35% maximum coverage, Lot 77 will have 32%, and Lot 78 will have 28%. The maximum impervious coverage of Lots 77 and 78 were reduced because they are the two largest of the six lots. The resulting change in impervious area is a reduction by 107 sf. This net reduction in maximum impervious area shows that the proposed changes to the lots will not have a negative impact on the existing drainage infrastructure. See calculation later in report. Storm Sewers: The storm sewer system will be designed to convey stormwater at a minimum velocity of 2.5 feet/second through reinforced concrete pipes while maintaining a hydraulic grade line (HGL) elevation below the top of castings during a 10-year storm event. Storm sewers that will be constructed with this development are included in Section 3 of this report, see Figure 3.1 for inlet basin delineations. Water Quality: A mechanical stormwater quality unit will be installed downstream of the proposed Sanner Court curb inlets. The unit will be proposed to be an inline unit with an internal by-pass. The unit was sized according to the standards in Chapter 700 of the City of Carmel Stormwater Technical Standards Manual. The resulting size of the structure is a Hydro International First Defense High Capacity 4 ft Structure. LOCATION MAP Date: October 20, 2021FIGURE 1.1 WEIHE weihe.net Indianapolis, Indiana 46280 10505 N. College Avenue 317 | 846 - 6611E N G I N E E R S PROJECT LOCATION RESERVE AT SPRINGMILL CARMEL, IN FEMA MAP Date: December 8, 2021FIGURE 1.2 WEIHE weihe.net Indianapolis, Indiana 46280 10505 N. College Avenue 317 | 846 - 6611E N G I N E E R S PROJECT LOCATION RESERVE AT SPRINGMILL CARMEL, IN AERIAL MAP Date: December 8, 2021FIGURE 1.3 WEIHE weihe.net Indianapolis, Indiana 46280 10505 N. College Avenue 317 | 846 - 6611E N G I N E E R S PROJECT LOCATION RESERVE AT SPRINGMILL CARMEL, IN Soil Map—Hamilton County, Indiana Natural Resources Conservation Service Web Soil Survey National Cooperative Soil Survey 10/19/2021 Page 1 of 344212904421310442133044213504421370442139044214104421290442131044213304421350442137044213904421410571450571470571490571510571530571550571570571590571610571630571650 571450 571470 571490 571510 571530 571550 571570 571590 571610 571630 571650 39° 56' 23'' N 86° 9' 49'' W39° 56' 23'' N86° 9' 40'' W39° 56' 19'' N 86° 9' 49'' W39° 56' 19'' N 86° 9' 40'' WN Map projection: Web Mercator Corner coordinates: WGS84 Edge tics: UTM Zone 16N WGS84 0 45 90 180 270 Feet 0 10 20 40 60 Meters Map Scale: 1:965 if printed on A landscape (11" x 8.5") sheet. Soil Map may not be valid at this scale. MAP LEGEND MAP INFORMATION Area of Interest (AOI) Area of Interest (AOI) Soils Soil Map Unit Polygons Soil Map Unit Lines Soil Map Unit Points Special Point Features Blowout Borrow Pit Clay Spot Closed Depression Gravel Pit Gravelly Spot Landfill Lava Flow Marsh or swamp Mine or Quarry Miscellaneous Water Perennial Water Rock Outcrop Saline Spot Sandy Spot Severely Eroded Spot Sinkhole Slide or Slip Sodic Spot Spoil Area Stony Spot Very Stony Spot Wet Spot Other Special Line Features 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 22, Sep 9, 2021 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. Soil Map—Hamilton County, Indiana Natural Resources Conservation Service Web Soil Survey National Cooperative Soil Survey 10/19/2021 Page 2 of 3 Map Unit Legend Map Unit Symbol Map Unit Name Acres in AOI Percent of AOI YclA Crosby silt loam, fine-loamy subsoil-Urban land complex, 0 to 2 percent slopes 2.1 79.0% YmsB2 Miami silt loam-Urban land complex, 2 to 6 percent slopes, eroded 0.6 21.0% Totals for Area of Interest 2.7 100.0% Soil Map—Hamilton County, Indiana Natural Resources Conservation Service Web Soil Survey National Cooperative Soil Survey 10/19/2021 Page 3 of 3 GGGGEEEECCCCSANNER COURTEX-W3.03 ACEX-NE0.46 ACFIGURE 1.4 EXISTING CONDITIONS EXHIBIT Date: December 8, 2021 WEIHE weihe.net Indianapolis, Indiana 46280 10505 N. College Avenue 317 | 846 - 6611E N G I N E E R S RESERVE AT SPRINGMILL CARMEL, IN OVERALL DRAINAGE CALCULATIONS SANNER COURT8079787776757168SANNER COURT(PRIVATE STREET)PR-NE0.46 ACPR-W3.03 ACFIGURE 2.1 PROPOSED CONDITIONS EXHIBIT Date: May 13, 2022 WEIHE weihe.net Indianapolis, Indiana 46280 10505 N. College Avenue 317 | 846 - 6611E N G I N E E R S RESERVE AT SPRINGMILL CARMEL, IN Project: Date: Job No.: Checked By: Prepared By: Existing Impervious (sf)Proposed Impervious (sf)Platted Lot Areas (sf) Streets 6,066 Street 10,827 Lot 69 56,542 Walks 1,055 Sidewalk 2,810 Lot 70 61,063 35% Lot 69 19,790 35% Lot 75 5,717 Lot 75 16,334 35% Lot 70 21,372 35% Lot 76 5,084 Lot 76 14,525 Total 48,283 32% Lot 77 6,151 Lot 77 19,223 28% Lot 78 6,530 Lot 78 23,323 35% Lot 79 5,072 Lot 79 14,490 35% Lot 80 5,985 Lot 80 17,099 Total 48,176 Net Change in Impervious Area (sf) = -107 TPG Impervious Area Comparison Reserve at Springmill 4/21/2022 W210497 DAS SANNER COURT8079787776757168SANNER COURT(PRIVATE STREET)4970.33 AC4960.37 ACFIGURE 2.1 STORM INLET BASIN EXHIBIT Date: May 13, 2022 WEIHE weihe.net Indianapolis, Indiana 46280 10505 N. College Avenue 317 | 846 - 6611E N G I N E E R S RESERVE AT SPRINGMILL CARMEL, IN Project: Date: Job No.: Checked By: Prepared By: Typical Full Pad (Lp, Wp)75 68 Typical Driveway (Ld, Wd)35 16 Street Width, B-B (W st)26 Sidewalk Width (Wsw)4 Walking Path Width (W wp)8 Str. # Total Number Number Street Sidewalk Walking Total Impervious Total Pervious Composite Drainage of of Length Length Path Length Area Area "c" Value Area, At Pads Driveways Lst Lsw Lwp Aimp Aper (acre) (ft) (ft) (ft) (acre) (acre) Cw 496 0.33 1 2 * 147 0 0.22 0.11 0.63 497 0.37 1 2 * 147 0 0.22 0.15 0.59 * 2759 sf has been included in the imprevious area calculation to account for the pavement within the cul-de-sac. 6/3/2022 W21-0497 DAS TPG Composite "c" Value Calculations Reserve at Springmill Shallow Conc Flow Travel Time: Channel Flow Travel Time: Short Grass 0.15 Grass 0.03 Dense Grass 0.24 Concrete 0.015 Shallow Conc Flow (Unpaved): Pavement 0.011 Rip-Rap 0.035 Shallow Conc Flow (Paved): 2 Yr, 24 Hr Rainfall= 2.66 Overland Flow Travel Time: Tc minimum= 5 Paved Gutter & Channel Flow Tc Basin Len S n T_t Len S n T_t Len S Pave/Un Vel T_t Len A Pw r S n Vel T_t (ft)%(min)(ft)%(min)(ft)%P or U (ft/s)(min)(ft)(sf)(ft)(ft)%(ft/s)(min)(min) 497 34 1.00 0.24 9 0 130 0.60 P 1.57 1 0 10.1 496 34 1.00 0.24 9 0 130 0.60 P 1.57 1 0 10.1 Time of Concentration Calculations Prepared By: Checked By: Job No.: Date: Project:Reserve at Springmill 1/12/2021 W21-0497 DAS TPG Channel Flow Overland Flow Channel Flow Mannings Values (n) Overland Flow Overland Flow Shallow Conc. Flow Hydraflow IDF Report Page 1 of 1 Return Equation Coefficients (FHA) Period (Yrs)B D E (N/A) 1 0.0000 0.0000 0.0000 -------- 2 0.0000 0.0000 0.0000 -------- 3 0.0000 0.0000 0.0000 -------- 5 0.0000 0.0000 0.0000 -------- 10 337.4067 28.7001 1.1400 -------- 25 0.0000 0.0000 0.0000 -------- 50 0.0000 0.0000 0.0000 -------- 100 0.0000 0.0000 0.0000 -------- Intensity = B / (Tc + D)^E Return Intensity Values (in/hr) Period (Yrs) 5 min 10 15 20 25 30 35 40 45 50 55 60 1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 2 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 3 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 5 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 10 6.12 5.23 4.55 4.02 3.60 3.25 2.96 2.72 2.51 2.33 2.17 2.03 25 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 50 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 100 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Tc = time in minutes. Min Tc = 5 Project: Date: Job No.: Checked By: Prepared By: Min. Travel Lane Required = 10 ft Street Width = 26 ft Total Flow, % Net Flow, Longitudinal Cross Slope, Manning's Depth at Gutter Spread, Min. Clear Travel Q Flow Flow Qnet Slope, S Sx Coefficient, Casting, D GS Lane Width Str. # (cfs) Direction (%) (cfs) (%) (%) N (ft) (ft)(ft) Left 0 0.00 2.19 2.08 0.013 0.00 0.00 Right 100 1.09 2.19 2.08 0.013 0.12 5.83 Left 100 1.13 2.19 2.08 0.013 0.12 5.90 Right 0 0.00 2.19 2.08 0.013 0.00 0.00 DAS TPG 496 1.09 12.3 497 1.13 Gutter Spread Calculations Reserve at Springmill 6/3/2022 W21-0497 Project: Date: Job No.: Checked By: Prepared By: A B C D (1) R-3501-TR/TL (2) R-3501-TR/TL R-3501-TB Weir Flow (d<0.3') 1.4 2.8 3.1 Orifice Flow (d>0.4') 4.6 9.2 5.7 0.7 1.4 1.55 Gutter Spread 3.45 6.9 4.28 0.1 0.1 0.1 Min. Travel Lane Required = 10 ft 2.00 2.00 2.00 Street Width = 26 ft Flow, Depth Depth Street Cross Gutter Spread, Gutter Spread, Clear Travel Q Casting Weir, d Orifice, d Slope, Sx GS (weir) GS (orifice) Lane Width Inlet Type Str. # (cfs) Desig. (ft) (ft) (%) (ft) (ft) (ft)(single/double) 496 1.09 A 0.21 0.10 2.08 7.26 2.07 (1) R-3501-TR/TL 497 1.13 A 0.21 0.11 2.08 7.48 2.40 (1) R-3501-TR/TL11.3 Weir Perimeter, P (ft) = A, 50% Clogged (ft2) = P, 50% Clogged (ft) = Casting Sump, Cs (ft) = Curb Width, Cw (ft) = DAS TPG Casting Designation Neenah Casting Open Area, A (ft2) = Curb Inlet Reserve at Springmill Capacity Calculations 6/3/2022 W21-0497 RESERVE AT SPRINGMILL - W210497 WQ STRUCTURE CALCULATIONS ICPR INPUT REPORT ========================================================================================== ==== Basins ============================================================================== ========================================================================================== Name: WQ495 Node: WQ495 Status: Onsite Group: BASE Type: SCS Unit Hydrograph CN Unit Hydrograph: Uh484 Peaking Factor: 484.0 Rainfall File: Storm Duration(hrs): 0.00 Rainfall Amount(in): 0.000 Time of Conc(min): 10.60 Area(ac): 0.700 Time Shift(hrs): 0.00 Curve Number: 95.80 Max Allowable Q(cfs): 999999.000 DCIA(%): 0.00 ========================================================================================== ==== Nodes =============================================================================== ========================================================================================== Name: WQ495 Base Flow(cfs): 0.000 Init Stage(ft): 0.000 Group: BASE Warn Stage(ft): 0.000 Type: Stage/Area Stage(ft) Area(ac) --------------- --------------- ========================================================================================== ==== Hydrology Simulations =============================================================== ========================================================================================== Name: 1IN-24HR Filename: H:\2021\W210497\Engineering\design\drainage\water quality\1IN-24HR.R32 Override Defaults: Yes Storm Duration(hrs): 24.00 Rainfall File: Scsii-24 Rainfall Amount(in): 1.00 Time(hrs) Print Inc(min) --------------- --------------- 24.000 5.00 RESERVE AT SPRINGMILL - W210497 WQ STRUCTURE CALCULATIONS ICPR BASIN REPORT Simulation Basin Group Time Max Flow Max Volume Volume hrs cfs in ft3 -------------------------------------------------------------------------------------- 1IN-24HR WQ495 BASE 12.04 0.57 0.615 1563 City of Indianapolis Stormwater Quality Unit (SQU) Selection Guide Pg. 2 02/11/2020 Version 17.0 Manufactured SQU SQU System Model Max Treatment Flow (cfs) Max 10-yr On-Line Flow Rate (cfs) Cleanout Depth (Inches) 4-ft 1.12 2.95 9 6-ft 2.52 6.63 12 8-ft 4.49 11.81 15 10-ft 7.00 18.40 18 Hydro International Downstream Defender1 12 ft 10.08 26.51 21 3-ft 0.85 1.84 9 4-ft 1.5 3.24 9 5-ft 2.35 5.08 9 6-ft 3.38 7.30 9 7-ft 4.60 9.94 9 Hydro International First Defense High Capacity1 8-ft 6.00 12.96 9 HS-3 0.50 1.00 6 HS-4 0.88 1.76 6 HS-5 1.37 2.74 6 HS-6 1.98 3.96 6 HS-7 2.69 5.38 6 HS-8 3.52 7.04 6 HS-9 4.45 8.9 6 HS-10 5.49 10.98 6 HS-11 6.65 13.3 6 HydroStorm by Hydroworks, LLC1 HS-12 7.91 15.82 6 XC-2 0.57 1.16 6 XC-3 1.13 2.30 6 XC-4 1.86 3.79 6 XC-5 2.78 5.66 6 XC-6 3.88 7.90 6 XC-7 5.17 10.52 6 XC-8 6.64 13.51 6 XC-9 8.29 16.87 6 XC-10 10.13 20.62 6 XC-11 12.15 24.73 6 XC-12 14.35 29.20 6 AquaShield Aqua-Swirl Xcelerator1 XC-13 15.53 31.60 6 CS-4 1.80 4.03 9 CS-5 2.81 6.29 9 CS-6 4.05 9.07 9 CS-8 7.20 16.1 9 CS-10 11.3 25.3 9 Contech Cascade Separator CS-12 16.2 36.3 9 PLAN VIEW SECTION A-A PARTS LIST SIZEDESCRIPTIONITEM I.D. PRECAST MANHOLE1 INTERNAL COMPONENTS (PRE-INSTALLED) 2 FRAME AND COVER (ROUND)3 OUTLET PIPE (BY OTHERS)4 INLET PIPE (BY OTHERS)5 A A ANY WARRANTY GIVEN BY HYDRO INTERNATIONAL WILL APPLY ONLY TO THOSE ITEMS SUPPLIED BY IT. ACCORDINGLY HYDRO INTERNATIONAL CANNOT ACCEPT ANY RESPONSIBILITY FOR ANY STRUCTURE, PLANT, OR EQUIPMENT, (OR THE PERFORMANCE THERE OF) DESIGNED, BUILT, MANUFACTURED, OR SUPPLIED BY ANY THIRD PARTY. HYDRO INTERNATIONAL HAVE A POLICY OF CONTINUOUS DEVELOPMENT AND RESERVE THE RIGHT TO AMEND THE SPECIFICATION. HYDRO INTERNATIONAL CANNOT ACCEPT LIABILITY FOR PERFORMANCE OF ITS EQUIPMENT, (OR ANY PART THEREOF), IF THE EQUIPMENT IS SUBJECT TO CONDITIONS OUTSIDE ANY DESIGN SPECIFICATION. HYDRO INTERNATIONAL OWNS THE COPYRIGHT OF THIS DRAWING, WHICH IS SUPPLIED IN CONFIDENCE. IT MUST NOT BE USED FOR ANY PURPOSE OTHER THAN THAT FOR WHICH IT IS SUPPLIED AND MUST NOT BE REPRODUCED, IN WHOLE OR IN PART, WITHOUT PRIOR PERMISSION IN WRITING FROM HYDRO INTERNATIONAL. WEIGHT: N/A SHEET SIZE: B SHEET: 1 OF 1 DRAWING NO.: REFERENCE NUMBER: hydro-int.com HYDRO INTERNATIONAL Rev: - DRAWN BY: ER Title CHECKED BY: APPROVED BY DATE:SCALE: NTS COMMENTS: PROJECTION MATERIAL: IF IN DOUBT ASK REVISION HISTORYREV BYDESCRIPTION DATE-FIRST RELEASE 5 1. MANHOLE WALL AND SLAB THICKNESSES ARE NOT TO SCALE. 2. CONTRACTOR TO CONFIRM RIM, PIPE INVERTS, PIPE DIA. AND PIPE ORIENTATION PRIOR TO RELEASE OF UNIT TO FABRICATION. PRODUCT SPECIFICATION: 1.PEAK HYDRAULIC FLOW: 2.MIN SEDIMENT STORAGE CAPACITY: 3.OIL STORAGE CAPACITY: 4.MAXIMUM INLET/OUTLET PIPE DIAMETERS: 18 in. (450 mm) 5.THE TREATMENT SYSTEM SHALL USE AN INDUCED VORTEX TO SEPARATE POLLUTANTS FROM STORMWATER RUNOFF. GENERAL NOTES: 1.General Arrangement drawings only. Contact Hydro International for site specific drawings. 2.Inlet/outlet pipe angle can vary to align with drainage network (refer to project plan.) 3.Peak flow rate and minimum height limited by available cover and pipe diameter. 4 1 1 3 4 Pipe DetailsPIPE MATERIAL LENGTH INV IN INV OUT SLOPEOUTLETft%INLET 1 ft %INLET 2 ft %INLET 3 ft %INLET 4 ft %.00 ft [.000 m]BOTTOM OF INTERNALS:.00 ft [.000 m]PREASSEMBLY REFERENCE: 2 5 HYDRO FRAME AND COVER (INCLUDED) GRADE RINGS BY OTHERS AS REQUIRED 2 NOTE: ADDITIONAL HEIGHT MAYBE REQUIRED DEPENDING ON PIPE SIZE Site: Structure No: 15 cfs 0.4 yd3125 gal RIM: 843.86 FT OUTLET 839 FT SUMP: 835.29 FT 44.5" 30 18 18 5/12/2022joe.rogers@ads-pipe.com (in) 36 102.82" 3 FT FIRST DEFENSE® HIGH CAPACITY Reserve at Spring Mill 495 APPENDIX