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HomeMy WebLinkAboutDrainage Summary ~ ~ ~ ~ ~ ~ ~ ~ c ~ ~ c ~ ~ ~ ~ ~ ~ L Medical Drive Shopps - - I Carmel, Indiana Design Summary Docket No. 06080032 DP/ADLS September 6, 2006 Prepared By: VS ENGINEERING, INC. 4275 North High School Road vsei@vsengineering.com Phone: (317) 293-3542 Indianapolis, Indiana 46254 www.vsengineering.com Fax: (317) 293-4737 r .-~ \ ., \.:. ... - , ."." /, ,'" \ \\'\~ f'C' l.ft~'U~ D D D D D D D D o o o o D D o D o U o Existine: Conditions The project site is located at 154 Medical Drive, Carmel, IN 46032 and is owned by Mukesh Patel of Carmel. The property is zoned B-8 and is approximately 1.3 acres in size. The lot was the former location of a childcare facility that burned down in 1998. The parking lot for the childcare facility is still located on the site, and access is achieved by two curb cuts located along Medical Drive on the east and west ends of the property. With the exception of the parking lot, the remainder of the property is grass with a group of trees and brush. The high point is located on the north side of the property and slopes towards the south. There is a 12' grade change from the high point to the low point of the property. Currently stormwater enters an enclosed storm sewer system at several locations within the property. The neighboring properties are graded in such a way that stormwater flows onto Mr. Patel's property and then into the city's storm sewer system. It should also be noted that a City of Carmel 12" storm sewer runs through the north portion of the property and is not located in an existing easement. This particular line services a neighboring property, with no stormwater from the project site entering the line. Proposed Conditions Site owner Mukesh Patel proposes that a commercial development be constructed on the project site. The building will have one, or a combination ofthe following uses: retail sales/general service, general office, and/or professional office. The maximum amount of tenants possible will be eight; with a minimum of 1200 square feet per unit. The proposed development was to have setbacks of 10' on the west, north, and east sides, and a 30' setback on the south side of the property, which fronts Medical Dr. However, due to the irregular shape ofthe property, Mr. Patel asked for a variance to reduce the 30' setback to 15' so the building could be placed efficiently within the property. This variance was approved 3-0 on June 26,2006 under Docket No. 06050016 V, Shops on Medical Drive (See Appendix A). The proposed building will be constructed using painted concrete masonry units, brick veneer, and an exterior insulation finish system. The design will incorporate wall mounted and pole mounted lights. The signs for each unit will be located above the awnings and will be a maximum of 30 square feet. Each sign will be internally lighted, wall mounted individual channel letters. The exact dimensions will be addressed in an ADLS amendment when future tenants are determined. As stated in the commitments for the above mentioned variance, there will be a decorative wrought iron fence placed along the south border of the property (Medical Drive). All required landscaping will be placed on site as required by the City of Carmel Urban Forestry Department. u o u o o o o o o o o o o o o o o o u Due to the irregular shape of the property and the large change in elevation within the property, a retaining wall will be built along the west edge, north edge, and also a small portion of the east edge of the property. The wall will be constructed using modular blocks manufactured by Keystone Retaining Systems. Examples of the retaining system can be found in the Appendix I. The stormwater will be divided into two parts, detained runoff, and non-detained . runoff. The detained runoff consists of all areas that are within the perimeter of the retaining wall and parking area. This flow will be routed through an enclosed storm sewer system, through an oil/water separator and into an underground detention facility. The underground detention facility will have an orifice that will be sized so that the stormwater is released in a controlled manner. The areas that will not be detained consist of areas that are located outside the perimeter of the retaining wall and the parking lot. This flow will be routed through grassy swales and directly into the City of Carmel's storm sewer system. The main purpose of these swales is to serve as a vegetative filter strip and also to re-direct flow from the neighboring properties away from the proposed retaining wall and building. The sidewalk from the Goddard School will be extended in the front of the project site. It should be noted that the sidewalk will not be built in the City ofCarme!'s right- of-way, therefore a 5.5' sidewalk easement will be dedicated to the City of Carmel. Appendices A: Copy of Variance B. Copy of ADLS Application C. Copy of DP Application D. Legal Description E. Floodway Map F. Notice ofIntent Form G. Stormwater Management Permit Application H. Soils Map I. Keystone Wall Specification and Sample D o o D D o D D D o o D D o D D D D D Appendix A o o o o o o o o o o o o o o ~~ o Angelina Conn Planning & Zoning Administrator Department of Community Services o o o o CI Y OF CARMEL DEPARTMENT OF COMMUNITY SERVICES Division of Planning & Zoning LET T E R of DEe I S ION June 27, 2006 Mukesh.Patel 301 East Carm<<;:l Drive Carmel, IN 46032 Re: Shops on Medical Drive - 06050016 V Dear Mr. Patel: At the meeting held Monday, June 26, 2006, the Carmel Advisory Board of Zoning Appeals took the following action regarding the Development Standards Variance application filed by you for the property located at 126 Medical Drive. APPROVED: Docket No. 06050016 V Development Standards Variance for landscape bufferyard requirement. Please be advised that per Section 30.05.05: Time Limit of the Zoning Ordinance, the aforementioned Development Standards Variance approval is valid for one (1) year. By that time, either continuous construction of the improvements must be underway, or a written request for a one-time, six-month extension of the approval must have been received and approval granted by this Department. The expiration date of the approval is June 26, 2007. If! can be of any further assistance, please do not hesitate to contact me at 317/571-2417. Sincerely, cc: Jim Wheeler, Coots, Henke & Wheeler Adam DeHart, Keeler-Webb Scott Brewer, Carmel City Forester Jim Blanchard, Building Commissioner Sarah Lillard, Building and Code Services ONE CIVIC SQUARE CARMEL, INDIANA 46032 317-571-2417 10 o o o o o o o 10 o o o o iD D o o D 10 Appendix B 0' o o o o o o o o o o D D o o o D o o Date DOCKET NO. APPLICATION for ADLS ARCHITECTURAL DESIGN. LIGHTING. and SIGNAGE FEE: $802.00 (Plus $107.00 per acre when NOT accompanied by a Development Plan) Name of Project: Medical Drive Shopps Address: 15 If Medical Drive, Cannel, IN 46032 Type of Project: Commercial Development Applicant: Mukesh Patel Phone No. 317-843-8392 Contact Person: Sanj ay Patel Phone No. 317-293-3542 Fax No. 317-293-4737 Email: sbpatel@vsenqineerinq.com Address: 4275 N. High School Road, Indianapolis, IN 46/.'14 Legal Description: To be typewritten on a separate sheet Area (in acres) 1.348 Zoning B-8/Business Owner of Real Estate: Mukesh Patel Carmel: x Annexation: Y or N Clay Township: Other Approvals Needed: Variance Docket #06050016V Ch 19.06 (l!Qproved 6/26/06) PARKING No. of Spaces Provided: 45 No. Spaces Required: 39 DESIGN INFORMATION Type of Building: Commerical 1 No. of Buildings: Square Footage: 9,600 Height:26'-10" (M:lx) No.ofStories----1 ~t faa:rl <MJ Exterior Materials: Brick Vl:rEer Colors: B.n:glrDy, l:::ei.g9, p:ll.e o::h:i.e EXtel:ior" Jhsl. Fi.n:iS1 Maximum No. of Ten ants: 8 Type of Uses: Office General. Professional Office Retail Sales/General Service Water by: City of Cannel Sewer by: City of Cannel Z:shared\forms\PC application\adlsapp.doc 1/4/2006 , o o o o o o o o 10 o o o o o o o o o o LIGHTING Type of Fixture: Wall Mounted Height of Fixture: 161 - Wall Mounted Pole Mounted 1 4 '-6" Pole Mounted No. of Fixtures: 6 Additional Lighting: N/A * Plans to be submitted showing Foot-candle spreads at property lines, per the ordinance. SIGNAGE No. of Signs: 10 Internally lighted wall mounted Type of Signs: signs w/ind. channel letters Location(s): Above awnings for each unit with end unit having an extra sign on side of building Dimensions of each sign: 3 '-0" H x 10' -0" L (Max.) Square Footage of each sign: 30 S.F. (Max.) 3' (Max.) Total Height of each sign: LANDSCAPING * Plans to be submitted showing plant types, sizes, and locations * * * * *" >l: * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * I the undersigned, to the best of my knowledge and belief, submit the above information as true and correct. Signature of ~ Applicant: tf71 () Title: OWner Mukesh Patel Date: August 14, 2006 (Print) ******************************************** State of Indiana, SS: County of Marion Before me the undersigned, a Notary Public for Hendricks County, State of Indiana, personally appeared Mukesh Patel and acknowledged the execution of the foregoing instrument this 14 th day of August , 2006 ~ ~ ~ c ~oQ- Notary Publ~cxpires: 2-12-2009 ~ c. Wright Revised: 01/03/2006 2 S: \FORMS\PC Applications - current\ADLSAMEN .APP 2006. dC,lc o o o o o o o o o o o o o o o o o o o Appendix C o o o D D D D D o D I D o D o o o o D o DEVELOPMENT IP'LAN OR (DIP' AmeJIl1<rllmeIDln A1P'IP'LlICA TlION Fee: $802.00 plus $107.00 per acre OR ($802.00 plus $107.00 per acre) DATE: DOCKET NO. x Preliminary Public Hearing Required Final Received By/Date Amended or Changed Checked By Name of Project: Medical Drive Shopps Project Address: 15~ Medical Drive, Carmel, IN 46032 Legal Description: (To be typewritten on separate sheet and attached) Name of Applicant: Mukesh Patel Address: 301 East Cannel Dr., Carmel. IN 46032 Contact Person: Sanj ay Patel Telephone: 317-293-3542 Fax No. 317-293-4737 Email: sbpatel@vsengineering.com Name of Landowner: Mukesh Patel Telephone: 317-843-8392 Address: 301 East Carmel Dr.. Carmel, IN 46032 Plot Size: 1.348 acres Zoning Classification: B-8/Business Present Use of Property: Vacant lot,former site of child care facility which bumed down in 1998 Proposed Use of Property: Office General, Professional Office, Retail Sales/General Service '0 o o o o o o D o o o o o o o o o o o NOTE: This application must be filed in duplicate and accompanied by: a) Two (2) copies of the development plan which the applicant will be responsible for distribution among TAC members; b) All necessary supporting materials. The undersigned agrees that any construction, reconstruction, enlargement, relocation or alteration of structures, or any change in the use of land or structures requested by this application will comply with and conform to all applicable laws ofthe State of Indiana and the zoning ordinance of Carmel, Indiana, adopted under the authority of Acts of 1979, Public Law 178, Sec. 1, et seq., General Assembly ofthe State oflndiana, and all Acts amendatory thereto. Signed: tPl ;) IU-0 Owner -<:: - L?~ Agenf'7 Sanjay B. Patel (Typed) Mukesh Patel (Typed) STATE OF INDIANA SS: Couri.ty of Marion Before me the undersigned, a Notary Public for Hendricks (county of residence) County, State of Indiana, personally appeared Mukesh Patel (name of person) and acknoyv1edged the execution of the foregoing instrument this 14th day-of August , 20~. c;?i~{!~ (N ary Public Signature) Linda C. Wright (Printed or Typed) My Commission Expires: 2-12-2009 z:\shared\fonns\PC applications\devplan.app Rev. 01103/2006 o o o o o o o o o o o o o o o 10 I o o o Appendix D o o o o o o o o o o o o o o o o o o o 154 South Medical Drive Carmel, Indiana 46032 Legal Description Part of the South Half of the Section 31, Township 18 North, Range 4 East in Clay Township, Hamilton County, Indiana, described as follows: Commencing at the Southwest corner of the South Half of Section 31, Township 18 North, Range 4 East; thence North 89 degrees 50 minutes 15 seconds East (assumed bearing) on the South line of said South Half733.00 feet; thence North 00 degrees 24 minutes 05 seconds East 660.00 feet to the Southerly right of way line of Carmel Medical Drive South and the place of beginning of the real estate herein described; thence North 76 degrees 56 minutes 20 seconds East to said right of way line 258.71 feet; thence North 13 degrees 03 minutes 40 seconds West 234.54 feet; thence North 89 degrees 35 minutes 55 seconds West 197.00 feet to a point on a line which bears North 00 degrees 24 niinutes 05 seconds East from the place of beginning; thence South 00 degrees 24 minutes 05 seconds West on said line 288.32 feet to said place of beginning. Subject to: Easements, restrictions, mortgages, and taxes of record D D D o o o o o o o u o o o o :0 o o o Appendix E SHOSHONE DR APPROXIMATE SCALE INDIAN TAL 500 0 500 FEET ZONE X - - t--t I EXECUTIVE DR HUNTERS 0 LN NATIONAL ROOD INSURANCE PROGRAM 0 CARMEL DR FIRM ROOD INSURANCE RATE MAP HAMILTON COUNTY, ~ INDIANA ~ STATION ~ AND INCORPORATED AREAS ~ Q ~ L \\o~t<;: (SEE MAP INDEX FOR PANELS NOT PRINTED) LocD.~\ NUMBER PANa SUFFIX lflllllBl om ,..... 0228 ~ -=:=J ~ ~ r=:J ~ -=:=J REVERE PL E 116TH ST ~ -=:=J -=:=J r=:J ~ MEDICAL DR (C o DO D JEFFERSON City of Carmel (Extraterritorial Jurisdiction) ~ ~ t=J EJ EJ EJ --=:J Notice b u..r. ~ MAP NUMBER 8hown belaw .~outc1 be used WhlIn pIlIclng /'nIP order&; the COMMUNITY NUMBER shawn above 5houId be 1.IACl on Itl8UbInCe IppIlcationa for the aubl8Ct community. MAP NUMBER 18057C0228F EFFEC11VE DATE: FEBRUARY 19, 2003 Federal Emergency Management Agency This is an ofticial copy of a portion of the abow referenced flood map. ~ was extracted USing F-MIT On-Une. This map does not reflect changes or amendments which may haw been made subsequent to the date on the title block. For the latest product information about National Flood Insurance Program flood maps check the FEMA Flood Map Store at WWN.msc.fema.gov D o D D D D D D D D D D D D D D D D D Appendix F NOTICE OF INTENT (NOI) STORM WATERRUNOFF ASSOCIATED WITH CONSTRUCTION ACTIVITY State Form 47487 (R6/9-04) Approved by State Board of Accounts 2004 Indiana Department of Environmental Management Drinking Water Branch o o D o D D D o o o D o D o o o D Submission of this Notice of Intent letter constitutes notice that the project site owner is applying for coverage under the National Pollutant Discharge Elimination System (NPDES) General Permit Rule for Storm Water Discharges Associated with Construction Activity. Permitted project site owners are required to comply with all terms and conditions of the General Permit Rule 327 IAC 15-5 (Rule 5). Check the type of Submittal: 0 Initial 0 Amendment 0 Renewal Project Name and Location: Project Permit # Project Name: Medical Drive Shopps County: Hamilton Brief Description of Project Location: 154 Medical Drive app. 2 lots E of Rangeline Rd. in Carmel Latitude Deg. ~ / Min. ~/ Sec. 32 and Quarter SW Section 31 Longitude Deg. ~ / Min. ~ / Sec. ~ Township 18N Range 4E (Permit Number below required for Renewals and Admendments Only - Not required for Initial Submittal) Does 0 all or 0 part of this project lie within the jurisdictional boundaries of a Municipal Separate Storm Sewer System (MS4) 0 Yes 0 No If yes, please name the MS4(s): City of Carmel, Indiana Project Sit~ Owner and Project Contact Information: Company Name (If Applicable): N/A Project Site Owner's Name (An Individual): Mr. Mukesh Patel Address: 301 East Carmel Dr. Title/Position: Owner City: Carmel State: IN Phone: (317}.843-8392 E-Mail Address (If Available): Ownership Status (check one): GovernmentalAgency: 0 Federal 0 State 0 Local Non-Governmental: 0 Public 0 Private 0 Other (Explain): Contact Person: Sanjay B. Patel, P .E. Affiliation with Project Site Owner: Design Consultant Company Name: VS Engineering, INC. Address (if different from above): 4275 N. High School Road City: Indianapolis Phone: (317) 293-3542 Zip: 46032 State: IN Zip 46254 E-Mail Address (If Available): sbpatel@vsengineering.co Project Description: o Residential-Single Family 0 Residential-Multi-Family 0 Commercial 0 Industrial 0 Other Discharge Information: Name of Receiving Water: Carmel Creek (If applicable, name of municipal operator of storm sewer. Please note that even if a retention pond is present on the property, the name of the nearest possible receiving water is required). Project Acreage: Total Acreage: 1.348 Acres Proposed Acreage to be Disturbed: 1.348 Acres TotalImpervious Surface Area (Estimated for Completed Project): 33105.6 Square Feet (as defmed in 327 lAC 15-5-4(16) including structures, roads, parking lots, and other similar improvements) Timetable: Start Date: 12/1/2006 and Estimated End Date for all Land Disturbing Activity: 12/1/2007 NOTE: Within forty-eight hours of the initiation of construction activity, the project site owner must notify the appropriate plan reviewing agency of the actual project start date. (Continued on Reverse Side) o Construction Plan Certification: By signing this Notice of Intent letter, I certify the following: A. The storm water quality measures included in the construction plan comply with the requirements of 327 lAC 15- 5-6.5,327 lAC 15-5-7, and 327 lAC 15-5-7.5; B. the storm water pollution prevention plan complies with all applicable federal, state, and local storm water requirements; C. the measures required by 327 lAC 15-5-7 and 327 lAC 15-5-7.5 will be implemented in accordance with the storm water pollution prevention plan; D. if the projected land disturbance is one (1) acre or more, the applicable Soil and Water Conservation District or other entity designated by the Department, has been sent a copy of the construction plan for review; E. storm water quality measures beyond those specified in the storm water pollution prevention plan will be implemented during the life of the permit if necessary to comply with 327 IAC 15-5-7; and F. implementation of storm water quality measures will be inspected by trained individuals. In addition to this form, I have enclosed the FoUowm2: ~ Verification by the reviewing agency of acceptance of the construction plan. ~ Proof of publication in a newspaper of general circulation in the affected area that notified the public that a construction activity is to commence, including all required elements contained in 327 lAC 15-5-5 (9). o o o o o o o o o o ~ $100 check or money order payable to the Indiana Department of Environmental Management. If the project lies solely within the permitted jurisdiction of an MS4 and is regulated by the MS4 under 327 lAC 15-13 - a fee is not required with submittal of this Notice of Intent A permit issued under 327 lAC 15-5 is granted by the commissioner for a period of five (5) years from the date coverage commences. Once the five (5) year permit term duration is reached, a general permit issued under this rule will be considered expired, and, as necessary for construction activity continuation, a new Notice of Intent letter would need to be submitted ninety (90) days prior to the termination of coverage. Project Site Owner Responsibility Statement: By signing this Notice of Intent letter, I certify under penalty of law that this document and all attachments were prepared under my direction or supervision in accordance with a system designed to assure that qualified personnel properly gather and evaluate the information submitted. Based on my inquiry of the person or persons who manage the system, or those persons directly responsible for gathering the information, the information submitted is, to the best of my knowledge and belief, true, accurate, and complete. I am aware that there are significant penalties for submitting false information, including the possibility of fme and imprisonment for knowing violations. Printed Name of Project Owner Mr. Mukesh P,I Signature of Project Owner m [} f~ Date: 0/ r &, r 0 ~ . This Notice of Intent must be signed by an individual meeting the signatory requirements in 327 lAC 15-4-3(g) and submitted in accordance with 327 lAC 15-5-6. Mail this form to: Indiana Department of Environmental Management Urban Wet Weather Section Cashiers Office Attn: OWQ Rule 5 100 North Senate Avenue Indianapolis, IN 46204 327 lAC 15-5-6 (a) also requires a copy of the completed Notice of Intent letter be submitted to the local Soil and Water Conservation District or other entity designated by the Department, where the land disturbing activity is to occur. o o o o o D o o Questions regarding the development of the Construction Plan and/or field implementation of 327 lAC 15-5 may be directed to your local Soil and Water Conservation District office or the Department of Natural Resources at 317 -233- 3870. Questions regarding the Notice ofIntent may be directed to the Rule 5 contact person at 317/233-1864 or 800/451-6027 ext 31864. State Form 47487 (R6 / 9-04) o o o o o o o o o o o o o o o ID ,0 o o Appendix G City of Carmel STORMWATER MANAGEMENT PERMiT APPLICATiON Permit #: Submission of this application constitutes notice that the project owner is applying for coverage under the Cannel City Code ~6-180 through ~6-209 for r'e~ water discharges associated with construction activity. Permitted project site owners are required to comply with all terms and conditions of the ~llllel City Code. oject Name: Medical Drive Sho s Brief Description of Project Location: 154 Medical Dr. Cannel titude: 390 57' 32" N uarter: ~ection: SW 31 IN- . 2 Lots East of eline Road Longitude: 860 07' 26" W Township: Range: 18N 4E ompany Name (If Applicable): N/A ~ect Site O~er's Name (An Individual): Mr. Mukesh P t 1 ddress: 301 East Cannel Drive "ty: . Cannel TitlelPosition: State: Zip: IN 46032 N/A o Governmental Agency o Public E-mail Address (If Available): NA rm Private 0 Other (Explain) Phone: 317-843-8392 ership Status (check one): Fax: WPPP Contact Person: Mr. Sanjay Patel, P.E. Affiliation to Project Site Owner: Desi Consultant ddress (Ifdifferentfrom above): 4275 N. Hi School Road Dity: . , Indianapolis Phone: n 317-293-3542 ~ Company Name (If Applicable): ' VS ENGINEERING, INC. IN Zip: 46254 State: Fax: 317-293-4737 E-mail Address (If Available): shnatellilvspnai nPPri ng (Y)I11 eroiect Descrintion: U 0 Residential-Single Family 0 Residential-Multi Family IXI Commercial Name of Receiving Water: D Cannel Creek . (If a detention pond is present on the property, the name' of the nearest possible receiving water receiving discharge must be provided) Project Acreage: D Total Acreage: 1.348 Proposed Acreage to be Disturbed: 1 .348 Total Impervious Surface Area (in square feet, estimated for entire project): 33, 1 05.6 o Industrial o Other (Explain) r-roject Duration: I.J Estimated Start Date: 12/1/2006 Estimated End Date for all Land Disturbing Activity: 12/1/2007 " U (Continued on Reverse Side) rrY signing this application, I certify the following: I..h.. The storm water quality meaSUl-es included in the Stonn Water Pollution Prevention Plan (SWPPP) comply with the requirements of . ~6~180 through ~6=209 oftfie Cannel City Code and the City of Carmel Stormwater Technical Standards Manual; ~.'. The Stoml Water Pollution Prevention Pla.n (SWPPP) complies with all applicable federal, state, and local stormwater requirements; The measures required by the Stormwater Pollution Prevention Plan (SWPPP) shall be implemented; Stormwater quality measures beyond those specified in the Stormwater Pollution Prevention Plan (SWPPP) will be implemented during the life of the permit if necessary to comply with the Carmel City Code; and IE. Implementation of stormwater quality measures will be inspected by trained individuals; ~ Pursuant to Carmel City Code ~ 6-205, the City reserves the right to implement the stormwater quality measures outlined in the Stormwater Pollution Prevention Plan (SWPPP) or provide maintenance thereto, at my expense, if not performed. o A permit issued under ~6-180 through ~6-209 of the Carmel City Code, and granted by the City of Carmel, is valid for a period of five (5) I(ears from the date coverage commences. Once the five (5) year permit term duration is reached, a general permit issued under this ~rdinance will be considered expired. A new permit application shall be submitted ninety (90) days prior to the termination of coverage, so that a new permit may be issued for continuation of construction activity. I~y signing this application, I certify under penalty of law that this document and all attachments were prepared under my direction or l.iupervision in accordance with a system designed to assure that qualified personnel properly gather and evaluate the information submitted. Based on my inquiry of the person or persons who manage the system, or those persons directly responsible for gathering the j)lformation, the information submitted is, to the best of my knowledge and belief, true, accurate, and complete. I am aware that there are l.Jignificant penalties;or :ub,~tt~g false information, including the possibility of fine and imprisonment for knowing violations. '/ ~l{/ Mukesh Patel 1-00'-0(, Dignature ofProj~t Owner Printed Name Date o o pproval of this application will constitute acceptance of the construction plans by the City of Carmel. 10 obtain a Rule 5 permit, the following should be sent to the Indiana Department of Environmental Management and a copy sent to the Wity of Carmel Engineering Department: CiI Rule 5 Notice of Intent (NOI) . ~." Copy of approved Stormwater Management Permit AP, plication, signed and dated by the City of Carmel Department of Engineering Proof of publication $100 permit fee payable to the Indiana Department of Environmental Management o Pennit Approved: Engineering Department o o Date OOR OFFICE USE ONLY: ('[WPPP approved by the City of Carmel: Uonstruction Plans approved by TAC: Permit fee received: On outstanding fees received: D o o D o o 10 o o o o o o o o o o o o Appendix H 11 U U a D {J D o 11 IJ fJ J Appendix I ~ o D D Q o ~ ~ ~ a D D ~ Q ~ ~ ~ ~ ~ Section MODULAR CONCRETE RETAINING WALL PART 1: GENERAL 1.01 Description A. Work shall consist of furnishing and construction of a KEYSTONE Retaining Wall System or equal in accordance with these specifications and in reasonably close conformity with the lines, grades, design, and dimensions shown on the plans. B. Work includes preparing foundation soil, furnishing and installing leveling pad, unit drainage fill and backfill to the lines and grades shown on the construction drawings. C. Work includes furnishing and installing geogrid soil reinforcement of the type, size, location, and lengths designated on the construction drawings. 1.02 Related Sections A. Section 02100 - Site Preparation B. Section 02200 - Earthwork 1.03 Reference Documents A. American Society for Testing and Materials (ASTM) 1. 2. 3. 4. 5. 6. 7. 8. 9. ASTM C-1372 ASTM 0-422 ASTM 0-698 ASTM 0-4318 ASTM 0-4595 ASTM 0-5262 ASTM 0-3034 ASTM 0-1248 ASTM 0-4475 Specification for Segmental Retaining Wall Units Particle Size Analysis Laboratory Compaction Characteristics of Soil -Standard Effort Liquid Limit, Plastic Limit and Plasticity Index of Soils Tensile Properties of Geotextiles - Wide Width Strip Unconfined Tension Creep Behavior of Geosynthetics Polyvinyl Chloride Pipe (PVC) Corrugated Plastic Pipe Horizontal Shear Strength of Pultruded Reinforced Plastic Rods B. Geosynthetic Research Institute (GRI) 1 . 2. GRI-GG4 GRI-GG5 Determination of Long Term Design Strength of Geogrids Determination of Geogrid (soil) Pullout C. National Concrete Masonry Association (NCMA) 1. NCMA SRWU-1 Test Method for Determining Connection Strength of SRW 2. NCMA SRWU-2 Test Method for Determining Shear Strength of SRW 1.04 Submittals/Certification A. Contractor shall submit a Manufacturer's certification, prior to start of work, that the retaining wall system components meet the requirements of this specification and the structure design. Keystone Compac Page 1 1/01/2004 I . ~ ~ D o o ~ ~ ~ D o ~ ~ ~ o ~ D ~ ~ ~ B. Contractor shall submit construction drawings and design calculations for the retaining wall system prepared and stamped by a Professional Engineer registered in the state of the project. The engineering designs, techniques, and material evaluations shall be in accordance with the Manufacturer's Design Manual, NCMA Design Guidelines For Segmental Retaining Walls, or the AASHTO Standard Specifications for Highway Bridges, Section 5.8 (whichever is applicable to designer). C. Contractor shall submit a test report documenting strength of specific modular concrete unit and geogrid reinforcement connection. The maximum design tensile load of the geogrid shall be equal to the laboratory tested ultimate strength of geogrid / facing unit connection at a maximum normal force limited by the "Hinge Height" of the structure divided by a safety factor of 1.5. The connection strength evaluation shall be performed in accordance with NCMA test method SRWU-1. 1.05 Quality Assurance A. Contractor shall submit certification, prior to start of work, that the retaining wall system (modular concrete units and specific geogrid): 1) Has been successfully utilized on a minimum of five (5) similar projects, i.e., height, soil fill types, erection tolerances, etc.; and 2) Has been successfully installed on a minimum of 1 million (1,000,000) square feet of retaining walls. B. Contractor shall submit a list of five (5) previously constructed projects of similar size and magnitude by the wall installer where the specific retaining wall system has been constructed successfully. Contact names and telephone numbers shall be listed for each project. C. Contractor shall provide evidence that the design engineer has a minimum of five years of documental experience in the design for reinforced soil structures. The design engineer shall provide proof of current professional liability insurance with an aggregate coverage limit of not less than $2,000,000. D. Owner shall/may provide soil testing and quality assurance inspection during earthwork and wall construction operations. Contractor shall provide any quality control testing or inspection not provided by the Owner. Owner's quality assurance program does not relieve the contractor of responsibility for quality control and wall performance. 1.06 Delivery, Storage and Handling A. Contractor shall check all materials upon delivery to assure that the proper type, grade, color, and certification have been received. B. Contractor shall protect all materials from damage due to jobsite conditions and in accordance with manufacturer's recommendations. Damaged materials shall not be incorporated into the work. PART 2: PRODUCTS 2.01 Definitions Keystone Com pac Page 2 1/01/2004 ~ ~ o ~ o ~ ~ ~ ~ o ~ ~ ~ ~ ~ c ~ D o 2.02 A. Modular Unit - a concrete retaining wall element machine made from Portland cement, water, and aggregates. B. Structural Geogrid - a structural element formed by a regular network of integrally connected tensile elements with apertures of sufficient size to allow interlocking with surrounding soil, rock, or earth and function primarily as reinforcement. C. Unit Drainage Fill - drainage aggregate, which is placed within and immediately behind the modular concrete units. D. Reinforced Backfill - compacted soil, which is placed within the reinforced soil volume as outlined on the plans. Modular Concrete Retaining Wall Units A. Modular concrete units shall conform to the following architectural requirements: 1. Face color - concrete gray. The Owner may specify standard manufacturers' color. 2. Face finish - sculptured rock face in angular tri-planer configuration. Other face finishes will not be allowed without written approval of Owner. 3. Bond configuration - running with bonds nominally located at midpoint vertically adjacent units, in both straight and curved alignments. 4. Exposed surfaces of units shall be free of chips, cracks or other imperfections when viewed from a distance of 10 feet under diffused lighting. B. Modular concrete materials shall conform to the requirements of ASTM C1372 - Standard Specifications for Segmental Retaining Wall Units. C. Modular concrete units shall conform to the following structural and geometric requirements measured in accordance with appropriate references: 1. Compressive strength: O!: 3000 psi minimum (21 MPa); 2. Absorption: s 8 % (6% in northern states) for standard weight aggregates; 3. Dimensional tolerances: :!: 1/8" (3 mm) from nominal unit dimensions not including rough split face, :!:1/16" (1.5 mm) unit height - top and bottom planes; 4. Unit size: 8" (203 mm) (H) x 18" (457 mm)(W) x 12" (304 mm)(D) minimum; 5. Unit weight: 75 Ibs/unit (35 kg/unit) minimum for standard weight aggregates; 6. Inter-unit shear strength: 600 plf (8 kN/m) minimum at 2 psi (13 MPa) normal pressure; 7. Geogrid/unit peak connection strength: 600-plf (8 kN/m) minimum at 2-psi (13 MPa) normal force. D. Modular concrete units shall conform to the following constructability requirements: 1. Vertical setback = 1/8":1: (3 mm) per course (near vertical) or 1" (25 mm)+ per course per the design; 2. Alignment and grid positioning mechanism - fiberglass pins, two per unit minimum; 3. Maximum horizontal gap between erected units shall be - 1/2 inch (13 mm). Keystone Com pac Page 3 1/01/2004 D Q D D U D o o ~ o o a ~ ~ ~ ~ ~ ~ o 2.03 Shear Connectors A. Shear connectors shall be 1/2-inch (12 mm) diameter thermoset isopthalic polyester resin-pultruded fiberglass reinforcement rods or equivalent to provide connection between vertically and horizontally adjacent units. Strength of shear connectors between vertical adjacent units shall be applicable over a design temperature of 10 degrees F to + 100 degrees F (-10 to 40 degrees C). B. Shear connectors shall be capable of holding the geogrid in the proper design position during grid pre-tensioning and backfilling. 2.04 Base Leveling Pad Material A. Material shall consist of a compacted crushed stone base or non-reinforced concrete as shown on the construction drawings. 2.05 Unit Drainage Fill A. Unit drainage fill shall consist of clean 1" (25 mm) minus crushed stone or crushed gravel meeting the following gradation tested in accordance with ASTM 0-422: Sieve Size 1 inch (25 mm) 3/4-inch (19 mm) No. 4 No. 50 Percent Passinq 100 75-100 0- 10 0-5 B. One cubic foot (0.028 m3), minimum, of drainage fill shall be used for each square foot (0.093 m2) of wall face. Orainage fill shall be placed within cores of, between, and behind units to meet this requirement. 2.06 Reinforced Backfill A. Reinforced backfill shall be free of debris and meet the following gradation tested in accordance with ASTM 0-422: Sieve Size 2-inch (50 mm) 3/4-inch (19 mm) No. 40 No. 200 Percent Passinq 100 100-75 0-60 0-35 Plasticity Index (PI) <15 and Liquid Limit <40 per ASTM 0-4318. B. The maximum aggregate size shall be limited to 3/4 inch (19 mm) unless field tests have been performed to evaluate potential strength reductions to the geogrid design due to damage during construction. C. Material can be site-excavated soils where the above requirements can be met. Unsuitable soils for backfill (high plastic clays or organic soils) shall not be used in the backfill or in the reinforced soil mass. Keystone Compac Page 4 1/01/2004 ~ D ~ U D ~ U ~ Q o ~ D D ~ ~ ~ ~ o D 2.07 D. Contractor shall submit reinforced fill sample and laboratory test results to the Architect/Engineer for approval prior to the use of any proposed reinforced fill material. Geogrid Soil Reinforcement A. Geosynthetic reinforcement shall consist of geogrids manufactured specifically for soil reinforcement applications and shall be manufactured from high tenacity polyester yarn or high-density polyethylene. Polyester geogrid shall be knitted from high tenacity polyester filament yarn with a molecular weight exceeding 25,000 g/m and a carboxyl end group values less than 30. Polyester geogrid shall be coated with an impregnated PVC coating that resists peeling, cracking, and stripping. B. Ta, Long Term Allowable Tensile Design Load, of the geogrid material shall be determined as follows: Ta = Tult / (RFcr*RFd*RFid*FS) Ta shall be evaluated based on a 75-year design life. 1. Tult, Short Term Ultimate Tensile Strength Tult is based on the minimum average roll values (MARV) 2. RFcr, Reduction Factor for Long Term Tension Creep RFcr shall be determined from 1 O,OOO-hour creep testing performed in accordance with ASTM D5262. Reduction value = 1.60 minimum. 3. RFd, Reduction Factor for Durability RFd shall be determined from polymer specific durability testing covering the range of expected soil environments. RFd = 1.10 minimum. 4. RFid, Reduction Factor for Installation Damage RFid shall be determined from product specific construction damage testing performed in accordance with GRI-GG4. Test results shall be provided for each product to be used with project specific or more severe soil type. RFid = 1.05 minimum. 5. FS, Overall Design Factor of Safety FS shall be 1.5 unless otherwise noted for the maximum allowable working stress calculation. C. The maximum design tensile load of the geogrid shall not exceed the laboratory tested ultimate strength of the geogrid/facing unit connection as limited by the "Hinge Height" divided by a factor of safety of 1.5. The connection strength testing and computation procedures shall be in accordance with NCMA SRWU-1 Test Method for Determining Connection Strength of SRW. D. Soil Interaction Coefficient, Ci Ci values shall be determined per GRI:GG5 at a maximum 0.75-inch (19 mm) displacement. E. Manufacturing Quality Control The geogrid manufacturer shall have a manufacturing quality control program that includes QC testing by an independent laboratory. The QC testing shall include: Keystone Com pac Page 5 1/01/2004 ~ ~ ~ I~ D ~ D D ~ a ~ o a Q a ~ Q o D Tensile Strength Testing Melt Flow Index (HOPE) Molecular Weight (Polyester) 2.08 Drainage Pipe A. If required, the drainage pipe shall be perforated or slotted PVC pipe manufactured in accordance with ASTM 0-3034 or corrugated HOPE pipe manufactured in accordance with ASTM 0-1248. PART 3: EXECUTION 3.01 Excavation A. Contractor shall excavate to the lines and grades shown on the construction drawings. Owner's representative shall inspect the excavation and approve prior to placement of leveling material or fill soils. Proof roll foundation area as directed to determine if remedial work is required. B. Over-excavation and replacement of unsuitable foundation soils and replacement with approved compacted fill will be compensated as agreed upon with the Owner. 3.02 Base Leveling Pad A. Leveling pad material shall be placed to the lines and grades shown on the construction drawings, to a minimum thickness of 6 inches (150 mm) and extend laterally a minimum of 6" (150 mm) in front and behind the modular wall unit. B. Soil leveling pad materials shall be compacted to a minimum of 95 % Standard Proctor density per ASTM 0-698 C. Leveling pad shall be prepared to insure full contact to the base surface of the concrete units. 3.03 Modular Unit Installation A. First course of units shall be placed on the leveling pad at the appropriate line and grade. Alignment and level shall be checked in all directions and insure that all units are in full contact with the base and properly seated. B. Place the front of units side-by-side. Do not leave gaps between adjacent units. Layout of corners and curves shall be in accordance with manufacturer's recommendations. C. Install shear/connecting devices per manufacturer's recommendations. O. Place and compact drainage fill within and behind wall units. Place and compact backfill soil behind drainage fill. Follow wall erection and drainage fill closely with structure backfill. E. Maximum stacked vertical height of wall units, prior to unit drainage fill and backfill placement and compaction, shall not exceed two courses. Keystone Compac Page 6 1/01/2004 - - o ~ D o D o Q D ~ o D o Q Q D ~ o o o Keystone Com pac Page 7 1/01/2004 a o Q D o D a ~ ~ Q Q a Q Q ~ ~ ~ D D 3.04 3.05 Structural Geogrid Installation A. Geogrid shall be oriented with the highest strength axis perpendicular to the wall alignment. B. Geogrid reinforcement shall be placed at the strengths, lengths, and elevations shown on the construction design drawings or as directed by the Engineer. C. The geogrid shall be laid horizontally on compacted backfill and attached to the modular wall units. Place the next course of modular concrete units over the geogrid. The geogrid shall be pulled taut, and anchored prior to backfill placement on the geogrid. O. Geogrid reinforcements shall be continuous throughout their embedment lengths and placed side-by-side to provide 100% coverage at each level. Spliced connections between shorter pieces of geogrid or gaps between adjacent pieces of geogrid are not permitted. Reinforced Backfill Placement A. Reinforced backfill shall be placed, spread, and compacted in such a manner that minimizes the development of slack in the geogrid and installation damage. B. Reinforced backfill shall be placed and compacted in lifts not to exceed 6 inches (150 mm) where hand compaction is used, or 8 - 10 inches ( 200 to 250 mm) where heavy compaction equipment is used. Lift thickness shall be decreased to achieve the required density as required. C. Reinforced backfill shall be compacted to 95% of the maximum density as determined by ASTM 0698. The moisture content of the backfill material prior to and during compaction shall be uniformly distributed throughout each layer and shall be dry of optimum, + 0%, - 3%. O. Only lightweight hand-operated equipment shall be allowed within 3 feet (1 m) from the tail of the modular concrete unit. E. Tracked construction equipment shall not be operated directly upon the geogrid reinforcement. A minimum fill thickness of 6 inches (150 mm) is required prior to operation of tracked vehicles over the geogrid. Tracked vehicle turning should be kept to a minimum to prevent tracks from displacing the fill and damaging the geogrid. F. Rubber tired equipment may pass over geogrid reinforcement at slow speeds, less than 10 MPH (15 KPH). Sudden braking and sharp turning shall be avoided. G. At the end of each day's operation, the Contractor shall slope the last lift of reinforced backfill away from the wall units to direct runoff away from wall face. The Contractor shall not allow surface runoff from adjacent areas to enter the wall construction site. 3.06 Cap Installation A. Cap units shall be glued to underlying units with an all-weather adhesive recommended by the manufacturer. Keystone Com pac Page 8 1/01/2004 Q Q Q D D ID I ~ D o a a o o a a D ~ D o 3.07 As-built Construction Tolerances A. Vertical alignment: :t 1.5" (40 mm) over any 10' (3 m) distance. S. Wall Batter: within 2 degrees of design batter. C. Horizontal alignment: :t 1.5" (40 mm) over any 10' (1 m) distance. Corners, bends & curves: :t 1 ft (300 mm) to theoretical location. D. Maximum horizontal gap between erected units shall be s 1/2 inch (13 mm). 3.08 Field Quality Control A. Quality Assurance - The Owner shall/may engage inspection and testing services, including independent laboratories, to provide quality assurance and testing services during construction. This does not relieve the Contractor from securing the necessary construction quality control testing. B. Quality assurance should include foundation soil inspection. Verification of geotechnical design parameters, and verification that the contractor's quality control testing is adequate as a minimum. Quality assurance shall also include observation of construction for general compliance with design drawings and project specifications. (Quality assurance is usually best performed by the site geotechnical engineer.) C. Quality Control - The Contractor shall engage inspection and testing services to perform the minimum quality control testing described in the retaining wall design plans and specifications. Only qualified and experienced technicians and engineers shall perform testing and inspection services. D. Quality control testing shall include soil and backfill testing to verify soil types and compaction and verification that the retaining wall is being constructed in accordance with the design plans and project specifications. PART 4: MEASUREMENT AND PAYMENT Keystone Compac Page 9 1/01/2004 t1ystone - Photos/commercial applications Page 1 of3 C,. -. STONE.i!l ~~~WW$Yf1[1t WRl!'t"illilf.8' fi::Hl!'Helll!'l!' o KtV'$TONE RHA1NIN~ W:.\LI.S'/'STI!.MS, INC. 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