Questions and Answers to Project Documents — Business Opportunities
PROJECT:  Concourse A and C Pre-Conditioned Air Re-Life
NUMBER:  201951778-00

Current as of:  3/29/2020
 
Question Number  1:   In reference to specification section 230923.2.1.A DDC System Manufacturers. Confirm that Johnson Controls, Inc. is an approved equal to the Basis of Design Product.
    Answer:   Johnson Controls is in our standard specification.
Question Number  2:   Re: 2.23 D. LAN and Communication Cable: Do you have a specific floor plan for the Communications Plan LAN Cabling?
    Answer:   (Response pending)
Question Number  3:   (Re: Baggage Handling System A003) The referenced sheet indicates to "remove the baggage system as required and stockpile for reinstallation." It further indicates to "reinstall baggage system to original condition." 1 - This system is currently inoperable. What is considered original condition to be installed? 2 - Is it acceptable to simply remove portions of this equipment and preserve the Right of Way for future installations? What is the best way or structure to preserve the right of way?
    Answer:   (Response pending)
Question Number  4:   (Re: Geotechnical Report Section 316329.10) The referenced specification section indicates "The geotechnical report is included elsewhere in the Project Manual." A search of the documents indicated this document was not included. Please provide a copy of the Geotechnical Report.
    Answer:   (Response pending)
Question Number  5:   (Re: Micro Pier Required Lengths S001) Detail 1 "Typical Micro pile Design Information" on the referenced sheet indicates a required minimum length of bedrock penetration and a required bond length into bedrock. These lengths are not indicated in the documents. Please provide the minimum lengths for both the penetration and required bond.
    Answer:   (Response pending)
Question Number  6:   (Re: Micro Pier Pricing) The referenced document indicates the Earthwork Quantity as a "Lump Sum". This is sufficient for the excavation portion of this scope, however Micro Piers are quoted and installed by the "Lineal Foot". Would DEN consider adding another pricing section which addresses Micro Pier Installation by the Lineal Foot (LF)?
    Answer:   (Response pending)
Question Number  7:   "(Re: Staged Construction Plan S201) The referenced plan indicates the contractor to ""Provide continued support of the existing basement walls"" as indicated. What load is anticipated for the continued support of the walls indicated?"
    Answer:   (Response pending)
Question Number  8:   (Re: Concrete and Dirt Disposal AD101) Other DEN projects have provided dump locations for Clean Concrete and Excavated Soils. Please provide locations where this material can be disposed of on site.
    Answer:   (Response pending)
Question Number  9:   "Overhead doors shown on sheet A301 have card readers called out. No details regarding security requirements are outlined in the specifications. Please provide a specification section outlining the security requirements for the overhead doors."
    Answer:   (Response pending)
Question Number  10:   There are no details regarding the paint to be applied on the new housekeeping pads. Please provide details of the paint to be applied to housekeeping pads, specifically if a yellow visibility stripe or any other coating will be required for these housekeeping pads.
    Answer:   (Response pending)
Question Number  11:   "Are permits required for this project? If yes, what type(s) of permits will be required? How will this be permitted? By room location or by project? Are the fees paid by DEN?"
    Answer:   (Response pending)
Question Number  12:   Per the schedule included in specification section 0132210 the project duration is indicated at 30 months for Concourse A and Concourse C indicates 19 months. In the project manual the completion date in the sample contract is indicated as follows: Conc A PC Chillers = 300 Cal days from NTP. Conc C PC Chiller = 365 Cal days from NTP. Conc A Heat Exchangers = 730 Cal days from NTP Conc C Heat Exchangers = 548 Cal days from NTP. In section SC-7 of that same manual the CCA Heat exchangers substantial completion is indicated at 548 Cal days from NTP Please clarify the schedule and milestone durations that the bidders are to schedule to.
    Answer:   (Response pending)
Question Number  13:   Are general dumpsters provided by DEN for General construction trash? If yes where are they located? If not provided by DEN where is a location that dumpsters can be set by the contractors?
    Answer:   (Response pending)
Question Number  14:   Where is the closest existing bathroom that will be available to contractors for each location of work as indicated in the documents?
    Answer:   (Response pending)
Question Number  15:   What are the traffic control and flagging requirements for the project?
    Answer:   (Response pending)
Question Number  16:   Please define free cooling dates for this project.
    Answer:   (Response pending)
Question Number  17:   Please provide the CAD file/Model.
    Answer:   (Response pending)
Question Number  18:   For temporary walls that impact the traffic lanes, who is responsible for revised striping, signage, road re-alignment, and traffic control? i.e. temporary wall construction in traffic lanes.
    Answer:   (Response pending)
Question Number  19:   Please provide the date when DEN will issue NTP.
    Answer:   (Response pending)
Question Number  20:   Please provide an overlay of the building above the rooms.
    Answer:   (Response pending)
Question Number  21:   During the pre-bid meeting it was indicated that DEN's plan for concrete access would be down the adjacent ramps to the room. Please provide additional detail on what DEN's plan is.
    Answer:   (Response pending)
Question Number  22:   Please confirm that there are no utilities below the existing rooms.
    Answer:   (Response pending)
Question Number  23:   How would DEN like bidders to handle temporary protection during construction from the existing wall and roof leaks?
    Answer:   (Response pending)
Question Number  24:   Has DEN completed a mold and hazardous material survey for all construction areas, if so please provide.
    Answer:   (Response pending)
Question Number  25:   "Note 19 on A003 states that temporary pads are required for relocated tanks, the existing tanks are not sitting on a pad. Are the pads required?"
    Answer:   (Response pending)
Question Number  26:   Is DEN monitoring the exterior foundation wall for movement during construction?
    Answer:   (Response pending)
Question Number  27:   Does DEN have an initial report on the exterior foundation wall regarding any movement? If so, please provide.
    Answer:   (Response pending)
Question Number  28:   Please define fireproofing scope and specifications.
    Answer:   (Response pending)
Question Number  29:   Should the contractor carry an allowance for fireproofing repairs? If so, how much.
    Answer:   (Response pending)
Question Number  30:   "In Concourse C there appears to be a structural member that is rusted, has the structure above in both locations been validated by DEN as safe to work below."
    Answer:   (Response pending)
Question Number  31:   Please provide a connection detail for the piping going to the pump rooms.
    Answer:   (Response pending)
Question Number  32:   "It appears that in Concourse C an existing AHU, ductwork, electrical disconnects, plumbing, piping, and related services for the unit is in the location the temporary wall is to be constructed. Please provide direction on how DEN would like contractor to construct the temporary wall in this location."
    Answer:   (Response pending)
Question Number  33:   Please provide specification sections for 078100 - "Applied Fireproofing" and 078413 - "Penetration Firestopping"
    Answer:   (Response pending)
Question Number  34:   Can you tell me if you are going to post the list of individuals who attended the pre-bid conference and mandatory guided site tour on Wed., March 11, 2020?
    Answer:   (Response pending)
Question Number  35:   Are there work hour restrictions for this contract? If so, I could not locate them.
    Answer:   (Response pending)
Question Number  36:   In response to the current COVID-19 events, can you please confirm if the timeline of this bid submission will remain March 26th or if it will be extended?
    Answer:   We recognize that COVID-19 is impacting the ability for contractors to formalize quality bids. At this time, we will be delaying bid opening to a date that will be announced in the upcoming addendum for this project.
Question Number  37:   (We are) a company based in Mumbai, India. We are interested in participating in the tender mentioned above hence want to get more information about the same. Considering the geographical constraint of personally reviewing the document, I request you to provide us the following details before we buy the document: 1) List of Items, Schedule of Requirements, Scope of Work, Terms of Reference, Bill of Materials required. 2) Soft Copy of the Tender Document through email. 3) Names of countries that will be eligible to participate in this tender. 4) Information about the Tendering Procedure and Guidelines. 5) Estimated Budget for this Purchase. 6) Any Extension of Bidding Deadline? 7) Any Addendum or Pre Bid meeting Minutes? We will submit our offer for the same if the goods or services required fall within our purview.
    Answer:   (Response pending)
Question Number  38:   Please provide the Soils Report No. 18-1-409 by Kumar and Associates dated June 25, 2018 as well as the report Addendum letter dated March 1, 2019.
    Answer:   (Response pending)
Question Number  39:   We will be submitting our questions on Thursday as requested, but wanted to ask as soon as possible if there will be additional times available to walk the site with subcontractors. This is a unique project and logistics are obviously a key component and it would be helpful to be able to walk the site with our concrete subcontractors to ensure the most accurate pricing. Please let me know if this is possible.
    Answer:   (Response pending)
Question Number  40:   Can you tell me what the warranty period is for this contract? Our insurance company needs it for the bid bond.
    Answer:   (Response pending)
Question Number  41:   Will there be additional times available to walk the site with subcontractors? This is a unique project and logistics are obviously a key component and it would be helpful to be able to walk the site with our concrete subcontractors to ensure the most accurate pricing. Please let me know if this is possible.
    Answer:   (Response pending)
Question Number  42:   Is a dedicated Safety Manager required by Contractor, or can this responsibility be addressed with the Contractor's Superintendent or Project Engineer?
    Answer:   (Response pending)
Question Number  43:   If a dedicated Safety Manager is required, will this be a full time requirement for the duration of the Project?
    Answer:   (Response pending)
Question Number  44:   Is a dedicated Quality Manager required by Contractor, or can this responsibility be addressed with the Contractor's Superintendent or Project Engineer?
    Answer:   (Response pending)
Question Number  45:   If a dedicated Quality Manager is required, will this be a full time requirement for the duration of the Project?
    Answer:   (Response pending)
Question Number  46:   Is the Contractor responsible for providing a Qualified Material Testing Agency for inspections and testing? If so, what scopes of work will require this? (Reference specification 011100 / 1.2 / H / 2, specification 014525, and plan sheet S001 General Note 10.)
    Answer:   (Response pending)
Question Number  47:   If the Contractor is to provide a Qualified Material Testing Agency, what firms are currently contracted by DEN that would be prohibited from Contractor's use on this Project?
    Answer:   (Response pending)
Question Number  48:   What date is anticipated for the issuance of Notice to Proceed?
    Answer:   (Response pending)
Question Number  49:   Plan sheet S001 General Note 4A references Soils Report No. 18-1-409 by Kumar and Associates, Inc. dated June 25, 2018, and a Report Addendum letter dated March 1, 2019. Please provide these documents.
    Answer:   (Response pending)
Question Number  50:   Reference Specification 011100 / 1.2 / F. Please clarify the BIM requirements for this project. Is there a BIM Project Execution Plan for this project already developed, and if so can it be provided at this time?
    Answer:   (Response pending)
Question Number  51:   Regarding removing and reinstallation of the existing Baggage Handling System, are there any certification requirements (other than welder certifications) that would limit who performs this work, and if so please clarify.
    Answer:   (Response pending)
Question Number  52:   Volume 1 - Concourse A plan sheet M2.02 indicates detail 6/M3.03. This sheet / detail is not included in the Volume. Please clarify.
    Answer:   (Response pending)
Question Number  53:   The IFB "Checklist: Required Submittal Forms" does not include Letters of Intent listed under DSBO. Please confirm that Letters of Intent are not required as part of the bid submission requirements.
    Answer:   (Response pending)
Question Number  54:   Is this project utilizing any Federal funding?
    Answer:   (Response pending)
Question Number  55:   Is this project to be compliant with Federal Acquisition Regulation?
    Answer:   (Response pending)
Question Number  56:   Under "Rules and Regulations Regarding Equal Employment Opportunity" within the IFB sample contract, please confirm the following are not included in this project: Regulation No. 10 Appendices B, C, & D and Regulation No. 12 Appendix E.
    Answer:   (Response pending)
Question Number  57:   Due to the COVID-19 situation, will the bid submission due date be extended? Will the bid Questions & Answer period by extended?
    Answer:   (Response pending)
Question Number  58:   Due to the COVID-19 situation, please confirm if bid submissions are to still be hand delivered to DEN or if an electronic submission will be utilized.
    Answer:   (Response pending)
Question Number  59:   Per Volume 1 & 2 plan detail 1/S001, please provide the minimum overall length of micropiles and minimum required bond length into bedrock.
    Answer:   (Response pending)
Question Number  60:   Specification 316329.10 / 1.3 references unit rates for micropiles. Please clarify if this scope of work is to be bid lump sum based on the quantities provided in the bid documents. If a unit rate is to be included for any over/underrruns on actual quantities, is the unit rate to be included in the bid submission, or will it be established during the construction phase if needed?
    Answer:   (Response pending)
Question Number  61:   Within Technical Specifications Section 316329.10 – Drilled Concrete Micropiles accounts for multiple items that call out standard practices to Drilled Shaft which do not directly correlate to Micropiles (i.e. Micropiles are not End Bearing, rebar cages are not required for micropiles, surface water can enter the borehole since tremie grouting method will be used, etc.). Please confirm that the micropile scope of work will follow industry standard practices such as stated within FHWA NHI-05-039 Micropile Design and Construction or will rely on guidance from the Micropile Engineer-of-Record.
    Answer:   (Response pending)
Question Number  62:   Within Technical Specifications Section 316329.10 – Drilled Concrete Micropiles, 1.9 Trial Micropile; it calls out the requirement of what seems to be a demonstration of means and methods. Is this a requirement that the contractors need to include or is this of the direction of what the micropile industry calls a Verification Load Test? If it is a verification load test that is typically a sacrificial micropile that is tested to 200% the design load. Please keep in mind that with limited access projects this can be a challenge to properly setup the test beams required to perform the verification load test within close proximity to the production micropiles. If this is unknown at this time can it be at the direction of the Micropile Engineer-of-Record?
    Answer:   (Response pending)
Question Number  63:   On page 4 of the RFP, under the “Checklist: Required Submittal Forms”, Bid Data Forms, second bullet says we need to submit a “List of Proposed Subcontractors Which Are Not MWBE Subcontractors”, but the actual form says, “o List of Proposed Subcontractors Which Are Not DBE Subcontractors”
    Answer:   The references to DBE on Page 34 were inadvertent. The goal is MWBE, so all references to DBE on Page 34 should actually be MWBE.
Question Number  64:   Please confirm that the Dead and Live Loads indicated on the Foundation Plan Drawings are only in Compressive and that there are no tension or lateral loads to consider for the micropiles.
    Answer:   (Response pending)
Question Number  65:   Please provide the following micropile design loads: Drawing S201 Foundation Plan: A1) Along column lines S7.9 and S5.9 (B4 GradeBeam), total of six micropiles; A2) Single micropile at approximately S6 and E.9; and B) Drawing S202 Foundation Plan: Single micropile at approximately S6 and E.9.
    Answer:   (Response pending)
Question Number  66:   Please confirm if the penetration firestopping and fire-resistive joint systems (if applicable) scope of work, will not require to be performed by a firm approved by FM Global and / or an Evaluation by UL identifying compliance with "Qualified Firestop Contractor Program Requirements."
    Answer:   (Response pending)
Question Number  67:   Due to the fire rated wall removal & temporary wall installed, will a fire watch be required during the duration of construction?
    Answer:   (Response pending)
Question Number  68:   Can the fire alarm system be deactivated for the zone/area where construction operations will be performed?
    Answer:   (Response pending)
Question Number  69:   Rooms have numerous existing water leaks throughout – please confirm acknowledgement of this and that addressing these leaks will not be included in scope of work.
    Answer:   (Response pending)
Question Number  70:   Due to areas of existing construction with aforementioned leaks, it appears there may be mold mitigation required. Please confirm scope of work &/or if there is a mold mitigation plan in place.
    Answer:   (Response pending)
Question Number  71:   Will you be providing a staging area outside of the work area for equipment?
    Answer:   (Response pending)
Question Number  72:   Is there a designated staging area for concrete operations on the apron (i.e. concrete trucks and pumps?)
    Answer:   (Response pending)
Question Number  73:   Can construction of both A & C occur simultaneously?
    Answer:   (Response pending)
Question Number  74:   Are there any noise restrictions during work hours?
    Answer:   (Response pending)
Question Number  75:   Are there any work hour restrictions?
    Answer:   (Response pending)
Question Number  76:   Is 3 phase, 480 temporary power available in the areas of work?
    Answer:   (Response pending)
Question Number  77:   Under article IX milestones, concourse A heat exchangers are 730 calendar days from NTP and concourse C are 548 from NTP. Under SC-7 milestones, CCA and CCC are shown to be 548 days – please clarify.
    Answer:   (Response pending)
Question Number  78:   Due to the corona virus pandemic, is there any intent to push the bid date of this project?
    Answer:   (Response pending)
Question Number  79:   With the current corona virus pandemic, will there be any additional requirements for construction or procedural protocols implemented?
    Answer:   (Response pending)
Question Number  80:   Who will be responsible for pumping down the glycol system? Does DEN handle this or is there a proprietary contractor that does this? If this is the contractor’s responsibility is there a glycol storage to be used for this project, and where is it located in relation to the rooms?
    Answer:   (Response pending)
Question Number  81:   On the North side of the room in Concourse C, some duct hangers have been recently installed. They are located inside of the perimeter of the temporary wall shown on the drawings. How would DEN like this conflict handled?
    Answer:   (Response pending)
Question Number  82:   Please provide the existing floor slab thickness.
    Answer:   (Response pending)
Question Number  83:   Please provide the existing equipment pad thickness.
    Answer:   (Response pending)
Question Number  84:   Please provide the load testing that will be required for the micropiles (number required and installation location(s)).
    Answer:   (Response pending)
Question Number  85:   There appear to be some loads missing for the micropiles on the foundation plan sheets. Several locations note typical load per beam type, but it seems there are still some missing. Please provide.
    Answer:   (Response pending)
Question Number  86:   Please confirm that propane powered equipment is not allowed to be used on this project.
    Answer:   (Response pending)
Question Number  87:   Please note the location of the nearest natural gas filling area.
    Answer:   (Response pending)
Question Number  88:   The mechanical equipment schedule on Sheet E401 calls out the chillers as CCA_00_5E_C_S_01-08. The power plan on sheet E301 and Mechanical Schedule on sheet M601 call out the chillers as CCA_00_4C_C_S_01-08. Please confirm that these are the same chillers despite the different naming convention.
    Answer:   (Response pending)
Question Number  89:   The mechanical equipment schedule on Sheet E401 calls out the chillers as CCC_00_3E_C_S_01-08. The power plan on sheet E301 and Mechanical Schedule on sheet M601 call out the chillers as CCC_00_4C_C_S_01-08. Please confirm that these are the same chillers despite the different naming convention.
    Answer:   (Response pending)
Question Number  90:   There are no specifications for the VFD's. Is Yaskawa an acceptable option?
    Answer:   (Response pending)
Question Number  91:   There is no manufacturer listed for the glycol feeder. Is Calcium Control an acceptable option?
    Answer:   (Response pending)
Question Number  92:   There are no specifications for the Balance Valves. Is Griswold and acceptable option?
    Answer:   (Response pending)
Question Number  93:   The pump schedule on Sheet M601 for Concourse A shows five (5) glycol pumps. The Pre-Conditioned Air Room Plan on sheet M401 shows four (4) glycol pumps. Which is correct?
    Answer:   (Response pending)
Question Number  94:   The air separator shown on Sheet M601 shows a 10" model number, but shows a 12" inlet/outlet size. Which is correct?
    Answer:   (Response pending)
Question Number  95:   Specification Section 079200 – Joint Sealants subsection 1.11.B.1 states the products are to have a (20) manufacturer warranty. The products outlined in Part 2 of section 079200 only come with (5) year manufacturer warranties, not (20) year warranties.
    Answer:   (Response pending)
Question Number  96:   Confirm that it is acceptable to use joint sealant products with five (5) year manufacturer warranties."
    Answer:   (Response pending)
Question Number  97:   Due to the COVID-19 outbreak and the resulting precautionary measures being taken across the country, the bidding community has had a significant strain on the ability of all interested parties to accurately prepare our bids. The ability of all bidders to effectively collaborate with their trade partners, exchange information, understand the current supply chain situation, formalize project delivery plans, define scope obligations across parties, and of course finalize the bid price as been hindered at best. These constraints are impacting all bidders and their respective team members. This situation and the limited amount of time remaining to compile bid submissions could result in less than well thought out bids and/or subsequent problems arising during project delivery. Please consider this current business and social environment and extend the bid date by a minimum of two (2) weeks.
    Answer:   We recognize that COVID-19 is impacting the ability for contractors to formalize quality bids. At this time, we will be delaying bid opening to a date that will be announced in the upcoming addendum for this project.
Question Number  98:   What does the functionality of the system need to be during the work?
    Answer:   (Response pending)
Question Number  99:   The pump schedule shows 5 PCA Glycol pumps, is this a typo and should there actually be 4?
    Answer:   (Response pending)
Question Number  100:   The air separator shows 10” model number, but a 12” inlet/ outlet, which is correct?
    Answer:   (Response pending)