Questions and Answers 1 July 2021.docx

1. Question: The attached electrical drawing ES102 (Electrical Site Plan) is shown not to scale. This drawing will require a scale referenced to process the electrical installations

Answer: The correct scale is 1" = 10'-0". Please mark your drawings accordingly. A corrected drawing will be issued by Addendum.

2. Question: It appears there is no separate specification section for the dehumidifier unit (DHU) scheduled on drawing M-701A. The performance and controls sequence are clearly defined on this schedule, but required construction features related to the dehumidifier’s cabinet, internal components, and refrigeration system are not. We request to know what specification section applies to this unit. Additionally, we request to know if it is permissible to use R410A refrigerant for the DHU in lieu of the scheduled R404A so long as all other performance requirements are met.

Answer: That is correct. This section was inadvertently omitted and will be issued via Addendum. Refrigerant type is open, as long as unit performance is met.

3. Question: Section '233713.23 - Air Registers and Grilles' is listed in the table of contents, but the PDF includes '233713.13 - Air Diffusers' instead.

Answer: The Project Manual includes both Section 233713.13 Air Diffusers for adjustable blade diffusers and 233713.23 Air Registers and Grilles for fixed blade grilles. The table of contents erroneously omitted Section 233713.13 but a corrected version will be issued by Addendum.

4. Question: Is there an Attachment 17 (DRAWINGS-SMALL AIR TERMINAL-VOL 1 OF 4)?

Answer: Yes, it is the landscaping drawing

5. Question: Amendment 001 spec book table of contents includes the following sections, however these sections are not included in the PDF documents:

230923.11 - Control Valves

230923.12 - Control Dampers

230923.14 - Flow Instruments

230923.16 - Gas Instruments

230923.23 - Pressure Instruments

230923.27 - Temperature Instruments

Answer: Project Manual Table of Contents is in error and will be replaced via Addendum. The project manual includes one DDC controls section 230923 (44 pages in volume 2) & none of the instrumentation "sub" sections (.11 through .27).

6. Question: The following sections are included in the PDF documents but not listed in the Table of Contents:

260936 - Modular Dimming Controls 334400 - Storm Water Utility Equipment

Answer: The Table of Contents erroneously omitted Section 260936 - Modular Dimming Controls and 334400-Storm Water Utility Equipment. These sections apply to the project. A revised Table of Contents will be issued by Addendum.

7. Are we to include anything for Division 27 on the Air Drop Facility in base bid CLIN 0004?

Answer: The Division 27 for the AD facility needs to be included in the base bid under CLIN 004.

8. Is there more geotechnical information available, other than the borings page C002A for the Air Drop that is provided?

Answer: At this time, only the boring logs shown are being provided.

9. Is there anything available for existing building that would pertain to helical piers?

Answer: The boring logs and location map for existing Building 5 will be added to the Specifications Section 316600 Helical Piers as an Exhibit. The revised section will be issued by Addendum.

10. Comm Room 102 equipment rack/cabinet. Confirm that we will not be furnishing one and that we will be salvaging an old one from the existing Comm Room and move it to the new Comm Room 102. If not, please provide specifications.

Answer: See Key note 12 on sheet ED101 for the contractor to relocate the communications equipment.

11. CCTV Cameras shown on drawings. There is no specification section and no riser diagram. Confirm that we are not furnishing or installing devices and cabling. If not, please provide specifications.

Answer: CCTV cameras will be installed by the gov’t under the Advantor contract. All junction boxes, conduit, power and pull strings are to be provided by the contractor.

12. Backbone cable shown on the Telecom riser diagram on drawing ET602. 12-strand single mode fiber and 25 pair cat3 BEP OSP. There is no specification section tied to this. Confam this is service provider furnished and installed. If not, please provide specifications.

Answer: A 24 strand of single mode fiber is already running to the building and is intended to be reused.

13. Wireless access points. Please confirm devices are Owner furnished.

Answer: Wireless access points are gov’t purchased and gov’t installed.

14. Clock system. There is no manufacturer provided under the spec section.

Answer: Sheets ET101, ET601, ET602, for the clock locations, as this item is a gov’t furnished and contractor install.

15. Public Address system. Confirm devices, equipment, and cabling provided by others. If not, please provide specifications.

Answer: Confirmed. Only the pathways; cable tray, conduit and boxes, are included in the contract documents.

16. Access Control system and Intrusion Detection system. Please confirm devices, equipment, and cabling are provided by others. If not please provide specifications.

Answer: Access control system and IDS are to be installed by the gov’t. All junction boxes, conduit, power and pull strings are to be provided by the contractor.

17. The Air Drop building clearly shows bridge crane requirements.

Answer: The Air Drop crane shall be a 10-ton crane, to be provided by others. Structure and power to support the crane are to be included in the base bid.

18. The Small Terminal building shows a “Bridge Crane Coverage Area”. Is there any work in this area, re: a crane?

Answer: There is a 5-ton bridge crane in the base bid for the Small Air Terminal. The specs for this crane are included in Section 412213.15.

19. Are we responsible for removing or modifying the existing trolly crane in this area?

Answer: Demolition of the existing monorail and crane shall be included in the base bid.

20. What is CPT-3?

Answer: SOMEHOW THIS DID NOT GET CALLED OUT FOR DEMO. WAS THE BASE GOING TO SALVAGE THIS? IF NOT, WE SHOULD HAVE THE CONTRACTOR DEMO IT. The contractor should demo this.

21. What is EP-1?

Answer: There is only one carpet tile on this project. Use CPT-1 from section 090690 color schedule for all CPT finishes. CPT shall be installed quarter-turned.

22. Provide floor finish break line for rooms #103 / #129.

Answer: This break shall match the ceiling change above. Refer to the reflected ceiling plan on sheet AE-103.

23. Provide floor finish break point for room #127 / room #128

Answer: The ceramic tile flooring is intended to cover the entire baggage check in area except for the walkoff mat. The transition will align with the east end of the check in desk.

24. Drawing C102A and C103A have conflicting notes regarding the asphalt paving removal and replacement. Please clarify the following notes:

“Saw cut and remove existing asphalt pavement for surface course and base course installation over existing pavement and for new air drop facility.” What does “over existing pavement mean? Is the new pavement to be installed over existing pavement? Is the new facility to be installed over existing pavement?

Answer: The Contractor shall remove full depth asphalt for building and storm sewer construction and resurfacing of HMA top coarse over existing base coarse pavement in areas of keyway in accordance with the construction details, which is a 3 foot limit for building construction and a 6 inch limit for utility trench construction for the keyways.

25. Drawing C102A says to saw cut and remove. Drawing C103A states to mill 2” deep. Please advise if the asphalt is to be removed or milled?

Answer: The pavement is sawcut for full depth removal and milled for keyways.

26. Various notes on C103A states to mill 2” deep and 3’ wide keyway. Please explain this note. Is only 3’ wide area to be milled and the rest is an overlay without milling?

Answer: See above responses. Milling for keyways with a surface coarse pavement over existing base coarse.

27. Drawing AE201 Note 32 states to “prep and tuck point all areas of mortar stress cracks as required”. There is no way to determine what quantity of stress cracks are existing in this area without a thorough investigation. Please provide a quantity to be used for the bidding process of this work similar to the quantity provided for note 34.

Answer: Note 32 is intended to apply to the entire second floor wall area between grids B and F except that covered by Notes 34 and 35.

28. Exterior elevations for the Air Drop Facility indicate material type abbreviations (ie. MV1 Modular Brick Veneer or MS2 Manufactured Stone Water Table), but we are unable to locate a legend indicating these items. Please provide a legend for the material and color selection.

Answer: The intent is for the Air Drop exterior finishes to match the Small Air Terminal finishes as closely as possible. Please provide products and colors to match those named in the Color Schedule 090690.

29. Spec section 047315 indicates Arriscraft as the selected product for Thin Stone Masonry. Section 090690 states Johnson Concrete Products for Concrete Masonry and doesn’t mention Arriscraft. Which product should be used?

Answer: The base standard for exterior split-faced masonry has been revised to Johnson Concrete, Cave of Crystals. Please provide products and colors to match those named in the Color Schedule 090690.