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HomeMy WebLinkAboutDrainage Report 1-17-13The LEGACY TO S &FLATS PHASE II DRAINAGE REPORT PREPARED FOR: J. C. Hart Contact Person: Todd May 805 City Center Drive Suite 120 Cannel, Indiana 46032 Contact Phone Number :: (397) 57319820 PREPARED BY: Gordan D. Kriq Stoeppehvenh & Associates, Inc. (317) 5704701 DATE PREPARED :: Januay 97, 2013 AC RCP !' CERTIFICATE OF LIABILITY INSURANCE OP ID: KA DATE (MM/DD/YYYY) 08/02/12 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 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). PRODUCER Conner Insurance, Inc. P. 0. Box 80865 8445 Keystone Crossing Ste 200 Indianapolis, IN 46240 Benjamin H. Conner 317 - 808 -7711 317- 808 -7700 CONTACT NAME: PHONE (A/C, No, Ext): E -MAIL ADDRESS: FAX (NC, No): PRODUCER 1STOE -1 CUSTOMER ID #: INSURER(S) AFFORDING COVERAGE NAIC INSURED STOEPPELWERTH & ASSOC. INC. C/O David Stoeppelwerth 7965 East 106th Street Fishers, IN 46038 INSURERA :CNA Insurance Company-A Rated INSURER B : Continental Casualty-A Rated 20443 INSURER C : INSURER D : INSURER E : INSURER F : REVISION NUMBER: rTHIS'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. INSR LTR TYPE OF INSURANCE ADDL INSR SUBR1 WVD I POLICY NUMBER POLICY (MM EFF /DD /YYYY) POLICY (MM /DD/YYYY) EXP LIMITS GENERAL LIABILITY 08/01/12 08/01/12 EACH OCCURRENCE $ 2,000,000 08/01/13 P VIZ SO(Ea EoNccTuErpre nce) $ 300,000 A X COMMERCIAL GENERAL LIABILITY B5085281596 B5085281596 $ 10,000 CLAIMS -MADE X OCCUR MED EXP (Any one person) 08/01/13 PERSONAL&ADVINJURY $ 2,000,000 A X Emp Benefits GENERAL AGGREGATE $ 4,000,000 PRODUCTS - COMP /OP AGG $ 4,000,000 GEN'L AGGREGATE LIMIT APPLIES PER: EMP BEN $ 2,000,000 POLICY X PELT LOC A A A AUTOMOBILE LIABILITY B5085281601 B5085281601 B5085281601 08/01/12 08/01/12 08/01/12 08/01/13 08/01 /13 08/01/13 COMBINED SINGLE LIMIT (Ea accident) $ 1,000,000 X ANY AUTO ALL OWNED AUTOS SCHEDULED AUTOS HIRED AUTOS NON -OWNED AUTOS BODILY INJURY (Per person) $ BODILY INJURY (Per accident) $ PROPERTY DAMAGE (Per accident) $ 100,000 X $ X $ A X UMBRELLA LIAB EXCESS LIAB X OCCUR CLAIMS -MADE B5085281646 08/01/12 08/01/13 EACH OCCURRENCE $ 1,000,000 AGGREGATE $ 1,000,000 $ DEDUCTIBLE $ X RETENTION $ 10,000 A WORKERS COMPENSATION WC585281629 08/01/12 08/01/13 X TATIU- OT- AND EMPLOYERS' LIABILITY Y / N TWY S E.L. EACH ACCIDENT $ 500,000 ANY PROPRIETOR/PARTNER /EXECUTIVE OFFICERJMEMBER EXCLUDED? N / A EL DISEASE - EA EMPLOYEE $ 500,000 (Mandatory in NH) If DESCRIPTION yes, describe under OF OPERATIONS below E.L. DISEASE - POLICY LIMIT 500 000 $ , B PROFESSIONAL DED - $35,000 LIAB AEH008216301 KNOWLEDGE DATE 01128/12 01/28/65 01/28/13 Aggregate 2,000,000 Per Claim 2,000,000 DESCRIPTION OF OPERATIONS / LOCATIONS/ VEHICLES (Attach ACORD 101, Additional Remarks Schedule, if more space is required) CERTIFICATE HOLDER CANCELLATION TO WHOM IT MAY CONCERN 01 SHOULD ANY OF THE ABOVE DESCRIBED POLICIES BE CANCELLED BEFORE THE EXPIRATION DATE THEREOF, NOTICE WILL BE DELIVERED IN ACCORDANCE WITH THE POLICY PROVISIONS, AUTHORIZED REPRESENTATIVE f �`W,'0'1- ACORD 25 (2009/09) © 1988 -2009 ACORD CORPORATION. All rights reserved. The ACORD name and logo are registered marks of ACORD THE LEGACY TO S & FLATS P SE II TABLE OF CONTENTS 1. PROJECT NARRATIVE Certificate of Liability Insurance Rainfall Data Location Map Soils Map 2. PROPOSED CONDITIONS LEGACY PUD, Stormwater Development Checklist 3. STORM SEWER DESIGN CALCULATIONS Tine -of - Concentration Calculations StormCAD Structure Input StormCAD Pipe Input StormCAD Pipe Output StormCAD Pipe Output II 4. GUTTER SPREAD CALCULATIONS 5. BACK COVER POCKET Storm Sewer Design Basin Map THE LEGACY TOWNS & FLATS PHASE II DRAINAGE NARRATIVE J. C. Hart is proposing the development of a multi - residential community in Hamilton County, Indiana to be known as The Legacy Towns & Flats, Section II. Location The project site is located south. of 14e Street just west of the intersection with River Road. More specifically, the site is located in the Northeast Quarter of Section 23, Township 18 North, Range 4 East in Clay Township, Hamilton County, Indiana. Protect Description The scope of the proposed project is to construct a multi- family residential community with all infrastructures associated with this type of development. The parcel is 6.92 acres and includes the construction of multi- family structures, streets, amenity areas, storm sewer, parking facilities and associated utilities. The Legacy Towns & Flats, Phase II site is part of a much larger overall site called the Legacy. More specifically, the proposed site is located within Region III of the East Basin for the Legacy development. The East Basin incorporates the White River flood plain into the detention design and conveys stormwater east towards the White River. therefore, this drainage report will only contain a drainage design for the East Basin as it relates to The Legacy Towns & Flats, Phase II The overall Legacy development will have two master drainage systems The Eastern Drainage System will convey stormwater east towards the White River and the Western Drainage System will convey stormwater west towards the Haverstick residential development. The Legacy Towns & Flats, Phase II lies within the Eastern Drainage System Therefore, this drainage report will contain narratives and calculations of said drainage system as it relates to the infrastructure that will be installed with this project. Please refer to The Legacy Stormwater Master Plan prepared by Williams Creek Consulting, Inc dated May 2012 for more details of the overall drainage for Legacy. The Master Plan includes the modeling for the current and proposed conditions for The Overlook at Legacy. EXISTING SITE CONDITIONS Eastern Drainage System Please refer to The Legacy Stormwater Master Plan prepared by Williams Creek Consulting, Inc. dated May 2012 for more details of the overall drainage foi Legacy. The Mastei Plan includes the modeling for the current and proposed conditions for The Overlook at Legacy. Soil Types. FnB2 Ho Pa - We - - Fox loam - Type B Soil - Houghton muck - Type A/D Soil Palms muck - Type A/D Soil Westland Clay loam - Type B/D Soil Adjoining Land Conditions: North: Single - Family Residential South: Grass /Floodplain East. Grass/Floodplain West: Multi - Residential PROPOSED SITE CONDITIONS Eastern Drainage System — The Legacy Towns & Flats, Phase II Please refer to The Legacy Stormwater Master Plan prepared by Williams Creek Consulting, Inc dated May 2012 for more details of the overall drainage for Legacy. The Master Plan includes the modeling for the current and proposed conditions for The Legacy Towns & Flats, Phase II. STORM SEWER DESIGN The use of Manning's equation was used for determination of storm drain pipe sizes for non- submerged conditions The storm drain system is capable of passing the 10 -year storm event with free water surface elevations below the crown of pipe. Minimum storm drain flowing velocity for full pipe flow shall be 2.5 feet per second (fps). The inlet grate castings are designed such that the 10 -year storm event shall be sufficiently conveyed into the storm sewer system at 50% efficiency. The inlets are spaced to allow one lane of traffic to remain open during the 10 -year storm event WATER QUALITY CALCULATIONS All water quality design information can be found in the Water Quality Report performed and completed by Williams Creek Consulting. EMERGENCY FLOOD ROUTING Emergency Flood Routing calculations will be submitted in the drainage reports for each section of development. The design overflow routing path is noted on the Primary Plat. REFERENCES Design and data methods are based on the following references: 1. HERPICC Stormwater Drainage Manual 2. City of Carmel Stonnwater Technical Standards Manual 3. USDA — Urban Hydrology for Small Watersheds 4. USDA — Soil Conservation Service SOILS MAP SCALE: 1"=1000' FnB2 - Fox loam, 2 to 6 percent slopes, eroded This gently sloping, well drained soil is on broad terraces an small domelike areas on uplands. It is moderately deep over sand and gravelly coarse sand. Most mapped areas on terraces are elongated and range from 3 to 50 acres in size The mapped areas on uplands are irregular in shape and range from 3 to 15 acres in size Ho - Houghton muck This nearly level, deep, very poorly drained soil is in depressions on uplands and outwash terraces. Runoff from higher adjacent areas is ponded on this soil. The mapped areas are mostly oval in shape and range from 2 to 60 acres in size. Pa -Palms Muck This nearly level, deep very poorly drained soil is in depressions and drainageways on uplands and terraces. Runoff from higher adjacent soils is ponded on this soil. Most of the mapped areas are elongated or oval in shape. The mapped areas range from 2 to 40 acres in size Map Unit- We - Westland clay loam We - Westland silty clay loam - This nearly level, deep, very poorly drained soil is in depressions, swales, and narrow drainageways on outwash plains. Runoff from higher adjacent soils is ponded on this soil. The mapped areas are mostly elongated and are parallel to streams The areas range from 3 to 200 acres in size PROPOSED CONDITIONS LEGACY PUD, STORMWATER DEVELOPMENT CHECKLIST The Legacy Towns & Flats, Phase II PROJECT NAME: OWNER: ADDRESS: ENGINEER: ADDRESS: J.C. Hart 805 City Center Drive, Suite 120 Carmel Indiana 46032 Stoeppelwerth & Associates, Inc. 7965 East 106th Street, Fishers, Indiana 46038 PROJECT LOCATION SCS CURVE NUMBER SUBBASIN SUBBASIN PRIMARY I.D.(S) OUTLET BMP BASIN ALLOWABLE a PROPOSED (BAS XXX) (EX: DD10) (EAST/WEST) DD10 DD10 EAST 71 71 IMPERVIOUS COVER% ALLOWABLE a PROPOSED 5% 5% BAS 704 DD10 EAST 94 94 TIME OF CONC. (MIN) ALLOWABLE <_ PROPOSED 20 20 85% 85% 5 5 STORMWATER FLOOD STORAGE REQUIREMENTS (FOR DISCHARGES TO EAST BASIN ONLY) 698447.36 PREDEVELOPMENT RUNOFF VOLUME CF POSTDEVELOPMENT RUNOFF VOLUME CF INCREASE IN RUNOFF VOLUME CF _ 732210.91 33763.55 . X 1.6 FLOODPLAIN STORAGE ENHANCEMENT REQU CF 5q)oaL• (A) FILL IN FLOODPLAIN COMPENSATION GROSS FILL IN FLOODPLAIN CF X 3 FLOODPLAIN STORAGE ENHANCEMENT REQU CF (B) TOTAL COMPENSATORY FLOODPLAIN STORAGE REQUIRED (A) (B) (C) RULE 5 PERMIT APPLICATION SUBMITTED? Q(YES / 140)0 STQ '' ' SEWER DESIGN CALCULATIONS GUTTER SPREAD CALCULATIONS