ITB 4660 Addendum 2 Noattach
ADDENDUM No. 2ITB No. 4660Argo Livery Restroom and Site ImprovementsDue: March 23, 2021 by 2:00 PM (local time)The information contained herein shall take precedence over the original documents and allprevious addenda (if any) and is appended thereto. This Addendum includes thirty-two (32)pages.The Bidder is to acknowledge receipt of Addenda No. 1 and 2, including all attachments inits bid by so indicating in the proposal that both addenda have been received. Bidssubmitted without acknowledgement of receipt of this addendum may be considered nonconforming.The following forms provided within the ITB document should be included in submittedbids: City of Ann Arbor Prevailing Wage Declaration of ComplianceCity of Ann Arbor Living Wage Ordinance Declaration of ComplianceVendor Conflict of Interest Disclosure FormCity of Ann Arbor Non-Discrimination Ordinance Declaration of ComplianceBids that fail to provide these forms listed above upon bid opening may be rejected asnon-responsive and may not be considered for award.I. CORRECTIONS/ADDITIONS/DELETIONSChanges to the ITB documents which are outlined below are referenced to a page or Section inwhich they appear conspicuously. Offerors are to take note in its review of the documents andinclude these changes as they may affect work or details in other areas not specifically referencedhere.IB-1As provided in ITB No.4660 Bid Document:Questions or Clarifications / Designated City ContactsAll questions shall be due on or before March 9, 2021 at 5:00 pm.As updated herein:Questions or Clarifications / Designated City ContactsAll questions shall be due on or before March 11, 2021 at 5:00 pm.Comment: The intent with this change is to simply extend the question deadline for formalresponse via a future addendum.II. QUESTIONS AND ANSWERSThe following Questions have been received by the City. Responses are being provided inaccordance with the terms of the RFP. Respondents are directed to take note in its review of theAddendum-2-1
documents of the following questions and City responses as they affect work or details in otherareas not specifically referenced here.Question 1: In the Bid Form/Price Sheet, the Boat Dock quantity is 1 with a lump sum total.However, in Drawing Number 7, it shows 3 Boat Docks. Are we to provide 3 Boat Docks or just1?Answer 1: The item is a lump sum to provide the three docks shown on sheet 7.Question 2: Is there a hard copy of the entire Geotechnical Report available for review? Thereport is on pages 19-20 of the plans, but it is very hard to read the map of where the soilborings were performed.Answer 2: Note the attached full Geotechnical report for supplemental information.Question 3: The bid documents state that there is no pre-bid walkthrough for this project. Doesthis mean that the prospective bidders can set up a site visit at any time prior to bidding? And ifso, who would we need to contact to set up said site visit?Answer 3: The Argo restrooms will be opened by Park Staff for bidder viewing from 12:00pm –2:00pm (local time) on Wednesday, March 10th. The rest of the site is open and available forviewing at any time.Question 4: Will the due date for submitting questions be changed?Answer 4: All questions shall be due on or before Thursday, March 11th, 2021 at 5pm (localtime).Question 5: Will the due date for submitting bids be changed?Answer 5: No the bid due date will not be changed. All Bids are due and must be delivered tothe City of Ann Arbor Procurement Unit on or before March 23, 2021 by 2:00 PM (local time).Offerors are responsible for any conclusions that they may draw from the information containedin the Addendum.Addendum-2-2
Professional Service Industries, Inc.3120 Sovereign Drive, Suite CLansing, MI 48911Phone: (517) 394-5700Mr. Douglas Schultz, Project ManagerROWE Professional Services Company540 South Saginaw, Suite 200Flint, Michigan 48502RE:May 15, 2020Geotechnical Exploration and Engineering ReportArgo Park and Livery Improvements1055 Longshore DriveAnn Arbor, MichiganPSI Report No. 0406-522R1Dear Mr. Schultz,As requested, PSI has developed a geotechnical engineering report for the above referenced project. Theresults of this exploration, together with our recommendations, are presented in the accompanyingreport, a copy of which is being transmitted herewith.After plans and specifications are complete, PSI should review the final design and specifications to verifythat the earthwork and pavement recommendations are properly interpreted and implemented. It isconsidered imperative that the geotechnical engineer and/or its representative be present duringearthwork operations to observe the field conditions with respect to the design assumptions andspecifications. PSI will not be responsible for interpretations and field quality control observations madeby others. Scheduling for our nearest Construction Materials Testing and Inspection location in Lansing,Michigan is available at (517) 394-5700.PSI appreciates the opportunity to provide geotechnical engineering and consulting services for yourproject and looks forward to working with you during the construction phase. PSI provides additionalservices, which include construction materials testing and observation services, environmental services,roof consulting and observation services, pavement and asphalt testing services and specialty engineeringand testing. If you have any questions regarding this report, or if we may be of further service, please feelfree to contact this office at your convenience.Musana NabilBranch Managermusana.nabil@intertek.comMahmoud E. El-Gamal, Ph.D., P.E.Principal Consultantmahmoud.el-gamal@intertek.com
GEOTECHNICAL EXPLORATIONAND ENGINEERING REPORTFOR THE:ARGO PARK AND LIVERY IMPROVEMENTS1055 LONGSHORE DRIVEANN ARBOR, MICHIGANMusana NabilBranch Managermusana.nabil@intertek.comPREPARED FOR:ROWE PROFESSIONAL SERVICES COMPANY540 SOUTH SAGINAW, SUITE 200FLINT, MICHIGAN 48502Taha Khalaff, P.E.Senior Geotechnical EngineerTaha.khalaff@intertek.comPREPARED BY:PROFESSIONAL SERVICE INDUSTRIES, INC.3120 SOVEREIGN DRIVE, SUITE CLANSING, MICHIGANMAY 15, 2020PSI PROJECT NO. 0406-522R1Mahmoud E. El-Gamal, Ph.D., P.E.Principal Consultantmahmoud.el-gamal@intertek.com
TABLE OF CONTENTSPROJECT INFORMATION . 1Project Authorization . 1Purpose and Scope of Services . 1SITE AND SUBSURFACE CONDITIONS . 2Site Location and Description . 2Field Exploration and Laboratory Testing . 2Groundwater Information . 4Site Seismic Classification . 5EVALUATION AND RECOMMENDATIONS. 6Site Preparation. 6Deep Foundation Recommendations . 7Helical Pile Foundation System Recommendations. 8CONSTRUCTION CONSIDERATIONS . 8Drainage and Groundwater Considerations. 8Excavation Safety Considerations. 9GEOTECHNICAL RISK. 9REPORT LIMITATIONS . 10APPENDIX . 11APPENDIXFigure 1 – Site Location DiagramFigure 2 – Boring Location DiagramBoring Logs (SB-01 through SB-05)PSI General NotesASFE – Important Information About Your Geotechnical Engineering Report
Project Number: 0406-522R1Argo Park and Livery ImprovementsMay 15, 2020Page 1PROJECT INFORMATIONProject AuthorizationThis engineering report presents the results of our geotechnical engineering exploration performed for theproposed Argo Park and Livery Improvements located at 1055 Longshore Drive in Ann Arbor, Michigan. Thisexploration was performed for ROWE Professional Services Company in accordance with PSI Proposal No.297580 dated December 10, 2019. Authorization to perform this exploration and analysis was in the formof an acceptance of PSI’s proposal by Mr. Douglas Schultz, Project Manager of ROWE Professional ServicesCompany, on February 12, 2020.Project DescriptionPSI obtained project information via e-mail communication from Mr. Douglas Schultz, Project Manager ofROWE Professional Services Company. The email included the following: Proposed Development Plan for Universal Access and Site Improvements.Soil Boring Locations.Briefly, PSI understands that ROWE Professional Services Company is planning improvements to theexisting Argo Park and Livery located at 1055 Longshore Drive in Ann Arbor, Michigan. Improvements willinclude the replacement of the existing dock/pier. The construction of 8/10 helix configuration round shaftpiles of 27/8 inch diameter, 0.203-inch wall thickness, above grade heights of approximately 6 feet, and aminimum depth of approximately 17 feet is anticipated. Additional site work will include restroomrenovations, fence replacements, and walkway and parking area paving. PSI further understands that nostructural design details are available at this time.The geotechnical recommendations presented in this report are based on the available project informationand results of our geotechnical exploration. If any of the noted information is considered incorrect or ischanged, please inform PSI in writing so that we may amend the recommendations presented in this reportif appropriate and if desired by the client. PSI will not be responsible for the implementation of itsrecommendations when it is not notified of changes in the project.Purpose and Scope of ServicesThe purpose of this exploration was to evaluate the subsurface conditions at the site and to developgeotechnical design criteria for support of foundations and pavement for the planned project. The scope ofthe exploration and analysis included a reconnaissance of the project site, completion of five (5) soil borings,field and laboratory testing of representative portions of the recovered samples, and an engineering analysisand evaluation of the subsurface materials encountered.The scope of services did not include an environmental assessment for determining the presence or absenceof wetlands, hazardous or toxic materials in the soil, bedrock, surface water, groundwater or air on, belowor around this site. Any statement in this report or on the boring logs regarding odors, colors, and unusualor suspicious items or conditions are strictly for informational purposes. Prior to the development of anysite an environmental assessment is advisable.www.intertek.com/building
Project Number: 0406-522R1Argo Park and Livery ImprovementsMay 15, 2020Page 2As directed by the scope of work provided by ROWE Professional Services Company, PSI did not provide anyservice to investigate or detect the presence of moisture, mold or other biological contaminates in or aroundany structure or any service that was designed or intended to prevent or lower the risk of the occurrence ofthe amplification of the same. ROWE Professional Services Company acknowledges that mold is ubiquitousto the environment with mold amplification occurring when building materials are impacted by moisture.ROWE Professional Services Company further acknowledges that site conditions are outside of PSI‘s controland that mold amplification will likely occur or continue to occur in the presence of moisture. As such, PSIcannot and shall not be held responsible for the occurrence or recurrence of mold amplification.PSI also provides an array of complementary environmental and industrial hygiene services to assist ourclients in successfully assessing and developing properties such as the one referenced in this report. PSI’senvironmental consultants apply their experience, local geologic knowledge and thorough understanding ofASTM standards, environmental risk, and regulatory knowledge to conduct due diligence assessments of awide range or property types and proposed developments.SITE AND SUBSURFACE CONDITIONSSite Location and DescriptionThe project site is located at 1055 Longshore Drive in Ann Arbor, Michigan. The proposed site is borderedby commercial and residential developments. The general site location is shown on the site locationdiagram in the Appendix as Figure No. 1.At the time of our field exploration, the project site consisted of topsoil, crushed stone and pavementcover associated with the proposed improvements area. Terrain across the project site was relatively levelwith grades varying on the order of approximately three (3) feet according to Google Earth Pro. Theground surface of the project site was firm at the time of the field services as indicated by the fact thatthe drilling rigs experienced little difficulty in accessing to the boring locations.Field Exploration and Laboratory TestingThe site subsurface conditions were determined by completion of five (5) soil borings advanced to depthsranging between five (5) and twenty-one (21) feet below the existing ground surface. The boring locationsand depths of the borings were established by ROWE Professional Services Company and were located inthe field by PSI. The approximate boring locations are depicted on the Boring Location Diagram included inthe Appendix.The soil borings were completed on March 3, 2020 and May 12, 2020 by means of a CME-55 truck-mounteddrilling rig and D-50 ATV-mounted drilling rig. Both drilling rigs were equipped with a rotary head utilizing3¼ inch hollow-stem augers to advance the boreholes. Representative soil samples were recoveredemploying split-barrel sampling procedures in general accordance with "Penetration Test and Split-BarrelSampling of Soils" (ASTM D1586). After completion of the test borings the holes were backfilled with theexcavated soils.www.intertek.com/building
Project Number: 0406-522R1Argo Park and Livery ImprovementsMay 15, 2020Page 3Determination of the ground elevations by survey at the boring locations was not within the scope of theproject. Approximate elevations were obtained using Google Earth Pro. Prior to the beginning of theconstruction, a field measurement at the boring location elevations should be performed by a professionalland surveyor registered in the State of Michigan. References to depths in this report and on the attachedBoring Logs are from the existing ground surface unless otherwise noted.In addition to the field exploration, a laboratory-testing program was conducted to evaluate engineeringcharacteristics of the subsurface materials. The laboratory-testing program included visual classification andmoisture content tests on representative portions of the material recovered. The results of these tests arelocated on the boring logs which are included in the Appendix. Each phase of the laboratory testing programwas conducted in general accordance with applicable ASTM specifications. The unused portion of the soilsamples will be placed in storage at PSI’s Lansing, Michigan facility. Unless otherwise requested in writing,the samples will be discarded after 60 days from the submission of the final report.Subsurface/Surface ConditionsThe surface and subsurface conditions encountered at the project site at the time of our field explorationare summarized in the table below:Table 1: Existing Surface/Subsurface ’SB-045’SB-0520’Surficial Materials and ApproximateThickness6” Crushed Stone4’ 6” Dark gray and brown Sand (FILL)Total Thickness: 5’15” Topsoil27” Dark gray Clayey Silt (FILL)Total Thickness: 3.5’6” Crushed Stone2’ 6” Dark gray Silty Clay (FILL)2’ Gray fine to medium Sand (FILL)Total Thickness: 5’6” Crushed Stone4’ 6” Dark brown and gray Silty Clay (FILL)Total Thickness: 5’4” Crushed Stone3’ 8” Dark brown Clayey Silt (FILL)Total Thickness: 4’Major Native Soils--Gray CLAYEY SANDYBrown/Gray fine to coarse SAND-----Brown SANDY GRAVELBrown CLAYEY SANDBrown fine to medium SANDThe surface of SB-01 through SB-04 boring locations consisted of crushed stone associated with theexisting structures and parking area which ranged from 4 to 6 inches thick. the topsoil covered the groundsurface of SB-02 boring location and was recorded by the drillers as 15 inches in thickness.www.intertek.com/building
Project Number: 0406-522R1Argo Park and Livery ImprovementsMay 15, 2020Page 4Beneath the crushed stone and topsoil, old fill composed of sand, silty clay, and clayey silt and sand wasencountered which extended to a depth of 3.5 feet at boring location SB-02, a depth of 4 feet at boringlocation SB-05, and to the maximum exploration depth of 5 feet at the remaining boring locations.Underneath the old fill at SB-02 and SB-05, alternating layers of native gravel and sand were encounteredwhich extended to the maximum exploration depth of both borings. Organic material was observed inclayey sand samples at boring SB-02 below the topsoil and old fill then extended to a depth of 4.5 feetbelow the ground surface.The native gravel and sand contained variable percentages of silt and clay. Moisture content of the testedgravel and sand samples ranged from 6 to 26 percent. Visually, the samples appeared wet when examinedin the laboratory. Standard Penetration Test (SPT) values (N values) from within the gravel and sand layersranged from 13 blows per foot to over 50 blows in 1.5 inches indicating a range of medium dense toextremely dense relative densities.Cobbles and/or boulders were not encountered during drilling operations. The boring logs should bereferenced with respect to this information. The presence of boulders and cobbles in the profile is a resultof the geologic method of deposition of the soil materials at this site. Even where cobbles or boulderswere not noted within the profile they could be encountered very nearby or between the boring positions.The contractor should be equipped for this condition.The above subsurface descriptions are of a generalized nature and are provided to highlight the major soilstrata encountered. The Boring Logs included in the Appendix should be reviewed for specific informationas to individual boring locations. The stratification shown on the Boring Logs represents the conditionsencountered at the specific boring locations. Variations may occur and should be expected betweenboring locations. The stratification represents the approximate boundary between subsurface materials;however, the actual transition may be gradual, abrupt,
ITB No. 4660 Argo Livery Restroom and Site Improvements Due: March 23, 2021 by 2:00 PM (local time) The information contained herein shall take precedence over the original documents and all previous addenda (if any) and is append
Addendum-3-1 ADDENDUM No. 3 ITB No. 4660 Argo Livery Restroom and Site Improvements Due: March 23, 2021 by 2:00 PM (local time) The information contained herein
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Addendum-2-1 ADDENDUM No. 2 ITB No. 4656 GEDDES ROAD WATER MAIN Bids Due: Tuesday, April 6, 2021 at 10:00AM (Local Time) The information contained herein
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