Questions and Answers 15 JULY 2021.pdf

Solicitation # W50S87‐21‐B‐5005 Questions & Answers Final Add/Alter Small Air Terminal 13 July 2021

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.

30. Please explain the process for substitutions. Many of the spec sections state the “Basis of Design” mfr and then state or “approved substitution”. Typically we see that the government allows substitutions as long as a J&A has not been processed. But these specifications are a bit different.

Are you approving substitutions after award or during the bid process?

Answer: There are only four sections for which a Basis of Design is included. Substitutions, where allowed, will not be approved prior to bidding, but the product must meet the criteria in the specs.

Please provide as follows:

1) 074113.16 Metal Roof. Substitution is allowed. Note that wall and roof panels MUST be from the same manufacturer.

2) 08710 Door Hardware. Substitution is allowed except for locking cores.

3) 096813 Tile Carpeting. Substitution is allowed for the accessories only. Tile carpeting must comply with the base interior finish standards as specified.

4) 107316 Canopies. Substitution is allowed.

31. Keynote 10 on AE105 are walkway canopies. Please provide a specification for these two canopies.

Specification section 107316 is for wall hung canopies only.

Answer: Please provide walkway canopies from the same manufacturer, and matching style as the wall hung canopies.

32. Are the projector and projector screen noted on AE103 required to be furnished and/or installed by the contractor?

Answer: The projector and screen will be Government Furnished, Government Installed. Power and data is included in the base bid.

33. Are all roof walkway protection pads shown on AE105 new?

Answer: Consider all walkway protection pads shown as new.

34. Note 34 on AE201 states “replace 48 square feet of broken and cracked brick…”. Note 34 is labeled at 3 locations on 2/AE201. Should 48 square feet be included at all 3 locations or would 48 square feet be the total area for all 3 locations combined?

Answer: Note 34 only applies at one location, near gridline D detail 2/AE201. The other two locations should read Note 37, at newly installed windows

35. Note 35 on AE201 and the note on 5/AE311 both state to “remove portion of bricks as needed” but no explanation is given as to the reason or objective for brick removal, therefore there is no way to determine how much brick needs to be removed. Please clarify why the brick is being removed and what the objective is or provide a specific square footage use for bid purposes.

Answer: The referenced detail in this note, 4/AE311, shows the intent for this brick removal is to repair the flashing at the base of this wall that appears to be allowing water to enter the building.

36. Spec section 092216 paragraph 2.2.C.1.b refer to 8” studs at “High Bay Wall”. Please clarify what is considered a “High Bay Wall” and if/where this note applies.

Answer: The high bay walls are those surrounding Rooms 113 Pallet Build Up and 114 Lav Truck.

37. 1/AE103 shows gypsum board ceiling at room 103. The finish schedule notes ACT. Which is correct?

Answer: The ceiling plan is correct. Room 103 is to receive a gypsum board ceiling.

38. 1/AE103 appears to show exposed structure ceiling at rooms 116 and 132. The finish schedule notes ACT. Which is correct?

Answer: The ceiling plan is correct. Room 116 and 132 do not receive ceilings.

39. The finish schedule notes ceramic tile floor (CT4) at Corridor 103 with carpet tile (CPT3) at adjacent

Passenger Holding Sterile 129. Please provide a plan that shows where the transition from ceramic tile to carpet tile occurs.

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

AE‐103.

40. The finish schedule notes ceramic tile floor (CT4) at Baggage Check‐In 127 with carpet tile (CPT3) at adjacent Passenger Holding 128. Please provide a plan that shows where the transition from ceramic tile to carpet tile occurs.

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.

41. The finish schedule notes VCT floor (VCT2) at Baggage Scan 130 with carpet tile (CPT3) at adjacent

Corridor 131. Please provide a plan that shows where the transition from ceramic tile to carpet tile occurs.

Answer: The north wall of the Baggage Scan Room 130 occurs at Gridline E. This is where the flooring change occurs.

42. The finish schedule notes ceramic tile base (CT5) at Fleet Work Room 123. This is the only room where ceramic tile base occurs without ceramic tile flooring. Please verify the floor and base finishes indicated on the finish schedule at room 123 are correct.

Answer: This is correct. This room receives Ceramic Tile base CT5 over Epoxy Flooring EP1.

43. How high do the FRP wall panels extend at Fleet Work Room 123?

Answer: The FRP panels are full height in this room.

44. How high does the ceramic wall tile extend at the north, south and west walls of room 105?

Answer: Refer to Addendum for revised elevations and corrected Room Finish Schedule.

45. The information on the finish schedule does not match elevations 3, 4, 5, 6, & 7/AE401 at rooms 124 and 125. Please provide clarification as well as additional elevations that show the required locations and height of ceramic wall tile.

46. The finish schedule notes ceramic tile wainscot to 5’‐0” AFF with paint above at rooms 203 and 204.

Elevations 3 & 4/AE402 show full height ceramic wall tile. Please clarify.

47. Please provide the concrete thickness, reinforcing (if any) and base thickness (if any) for the HVAC

Equipment Pad noted on C102.

Answer: For the HVAC Equipment Pad size, thickness, and reinforcing – refer to keynote 13 and plan 1 on sheet MP101 and detail 1 on sheet M‐501.

48. Please provide the concrete thickness, reinforcing (if any) and base thickness (if any) for the

Concrete Paving Restoration noted on C102.

Answer: a. 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.

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

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

49. Please provide a plan that shows the extent of silt fence required

Answer: Silt fencing will be very limited given that the site is surrounded by existing pavement. The contractor should use their professional judgment on the location and timing of silt fencing.

50. Please provide a plan that shows the extent of existing trench drain in which debris and sediment must be removed (reference note on C102).

Answer: Removal of debris in this trench drain should not be more than 25 feet. The more important work on this drain is redirecting the flow which will occur at the location noted.

51. No reinforcing information has been provided for footing types F1 and F2. If reinforcing is required please provide requirements.

Answer: Provide (6) #5 bars each way in the bottom of footing F1 and (4) #5 bars each way in the bottom of footing F2. These notes will be added in an addendum.

52. Are the tops of all new footings shown on SB101 flush with the adjacent concrete slab?

Answer: Yes in the existing small air terminal. This note will be added in an addendum.

53. What is the required spacing of the dowels from the slab replacement into the existing slab noted on 1 & 2/SB301?

Answer: 16" on center. This will be added in an addendum.

54. What is the required reinforcing (if any) for the slab replacement detailed on SB301?

Answer: #4 @ 16" o.c.e.w. This will be added in an addendum.

55. Please verify that the note “thicken new slab under CMU walls” does not apply at CMU walls on the existing slab.

Answer: Correct, existing slabs do not need thickening under new cmu walls. This note will be removed in an addendum.

56. Is the vertical reinforcing at new CMU walls on existing slab on grade required to be doweled into the existing slab? If so please provide a detail and/or requirements.

Answer: Provide 24" long dowels matching the new cmu vertical reinforcing bar size and spacing into the existing slab. Epoxy these dowels 4" into the existing slab. This will be added to the detail in an addendum.

57. What is the required length of the L3x3x1/4 anchored to the slab shown and noted on 4, 5 & 6/S201?

Answer: The length is 4" (matches the width of the jamb tube) and has (1) epoxy anchor into the slab. This will be added to the detail in an addendum.

58. Please clarify the scope requirements for asphalt demolition, asphalt milling, asphalt overlay and/or new asphalt. The notes on C101 and C102 are contradictory and confusing.

Answer:

59. There appears to be some type of anchor on the bottom of the bent plate extending down into the

CMU wall on 6/SF501. Please provide information for this anchor

Answer: This is to be a 5/8" diameter threaded rod epoxy anchor post‐installed thru a standard hole in the bent plate. This will be added to the detail in an addendum.

60. Are aluminum doors and frames 103A, 127A, 128A and 129B intended to be aluminum storefront per section 084113?

Answer: Yes

61. CG‐1 and CG‐2 corner guards are noted on the floor plans but there is no explanation provided for the types of corner guards. Please provide a description for CG‐1 and CG‐2.

Answer: CG1 and CG2 are identified in the Spec Section 090690 Color Schedule.

62. I have been unable to locate any fire extinguishers on the plans. Do sections 104413 & 104416 apply to this project? If so please provide locations/quantities.

Answer: Revised Life Safety Plans are being provided by Addendum showing cabinet and bracket locations. Refer to the revised plans for location and type. Extinguishers will be owner provided.

63. Please provide information (size, type, etc) for the window bag drop window shown on AE101 (note

8).

Answer: Please refer to Details 1 and 5/AE403. This is intended to be a (4'‐6"wide X 4'‐0" high) cased opening to provide a clear area for bag transfers across the counter.

64. CT3: Centered in Room – Ashlar Install” is noted on the finish schedule on AE604 at rooms 128 and

129. If ceramic tile is required at these rooms a plan will need to be provided to show the extent.

Answer: That note you reference has a typo. It should refer to CPT3. The flooring in Rooms 128 and 129 is a continuous installation of CPT3. The client has stated they prefer quarter turn install to ashlar. A correction will be issued by Addendum.

65. Are the decorative wall panels shown on AE404 the composite paneling specified in section 068300?

66. Drawing AE403 Keynote 2 indicates the weigh scale is GFCI. A specification section 111323 has been included in our specs. Is the contractor to furnish and install spec section 111323 or just install? If contractor is to install please provide the manufacturer the Government intends to use so we can contact them. The specification requires an authorized rep to install.

Answer: The scale is Government Furnished Contractor Installed. The contractor shall coordinate the millwork, power and installation with the Government upon selection and purchase of the equipment.

67. Spec section 412223.13 Parachute Lift System is included in the bid documents. Is this item contractor furnished and installed?

68. Should epoxy base be included with areas that receive epoxy floor as part of Air Drop Facility Option

1?

Answer: Yes inside the Parachute Drying Tower 112A. It is not required in the remaining spaces.

69. A vertical slide clip connector is noted on 2/AE303A (along with several other sections). What is the required spacing of this connector? Also please provide a specification.

Answer: The spacing is at every stud (16" OC). Our design was based on the Simpson SCB49.5 and SCB411.5 Bypass Framing Slide‐Clip Connectors. Sheets AE303A, AE304A, AE305A, AE501A and AE503A will be revised by Addendum.

70. Please provide specifications for the 4” thick manufactured stone wainscot, water table and accent band at the Air Drop Facility.

Answer: The exterior finishes on the Air Drop Facility are to match those of the Small Air Terminal in appearance. The Air Drop facility can be full thickness materials vs thin veneer.

71. Sheet C‐102A notes “saw cut and remove existing asphalt pavement for surface course and base course installation over existing pavement and for new air drop facility”. The first part of the note is in conflict with the second part. Should the pavement be removed per the first part of the note or should it remain with surface and base course installed over it per the second part? Additionally there is another conflict with notes on C‐103A that state “saw cut existing pavement and mill 2” deep 3’ wide keyway for surface course overlay over existing pavement”. Please clarify what is required for existing pavement removal and new pavement.

Answer:

72. There are overhead coiling doors shown at the Air Drop Facility but no specifications have been provided. Please provide specifications.

Answer: Specifications will be provided by Addendum.

73. Spec section 096723 is for “Fuel Resistive Resinous Flooring”. The Air Drop Facility Plans do not note the epoxy flooring as “Fuel Resistive”. Is the epoxy flooring at the Air Drop Facility required to be fuel resistive?

74. Spec section 013100 Project Management and Coordination paragraph 1.5.A states the project superintendent is the only position required to be on site full time. Can he fulfill the duties of the SSHO as well?

Answer: No

75. Spec section 014000 Quality Control does not specifically require a Quality Control Manager. Does the government want a separate person from the Superintendent to perform the quality control work? Is this a full time position?

Answer: The Site Superintendent cannot assume other duties and the contractor is required to monitor ALL quality control to make sure they meet the requirements.

76. Spec section 011000 paragraph 1.4.C.1 states to provide a temporary facility as indicated on the drawings. Will additional information regarding this facility be on the newly issued documents? There doesn’t appear to be information for this facility on the Air Drop Facility drawings.

Answer: The Temporary facility is only part of the Small Air Terminal and is shown on sheet C111, the size is a 20x60 trailer, with min. 1 bathroom, and min. 4 offices with open cubicle/conference room space.