B235 RFIs Page 2 of 2 - 12-11-2023.pdf

1. The construction site is located behind the secured area of the base. How will daily/routine contractor traffic be managed through the current gate system?

- Contractor shall install temporary fencing around B235 which includes the footprint for the proposed addition. Contractor may utilize a section of demolished fence as shown in CD101 Keynote #2 on the south of B235 as routine traffic for construction.

2. Please confirm base access protocols and how construction vehicle access such as material deliveries and regular hauling be handled? 01 11 00 -1.2.3 (f) references a Contractor Gate. Is there a Contractor Gate and where is it located?

- As stated in 1.2.2, the prime contractor shall assign a “security coordinator” that will be the main point of contact for requesting base access for individuals that do not perform routine work on base. Everyone shall use the main gate including deliveries.

3. Please clarify the base requirements for the coordination/sequence with the gas utility company for the gas line work (demo & install).

- The Government owns the utility on base. No further coordination required.

4. Note 5 on CD101 requires all utilities to be demoed back to the nearest utility basin or manhole.

Please confirm no other underground utility demo is required, other than the underground electrical demo identified on ED101.

- The Government confirms that there is no other underground utility demo required other than what was identified on ED101.

5. 01 57 19 – Temporary Environmental Controls references both an MS4 permit and an NPDES permit. Please confirm if the Contractor is responsible for applying for a 1200-C permit or one is already in place and Contractor is an operator under the existing permit.

- Contractor shall be responsible for applying for a 1200-C stormwater permit.

6. S-002 Note 8 specifies the metal decking to N3 with stated properties. On detail 1/S530 metal decking schedule indicates N3 to be decking with concrete. Architectural details indicate decking with rigid insulation. Please confirm metal decking type to be required.

- Detail 1/S-530 is a typical detail that includes both concrete filled and unfilled deck. Per S-121 the deck is N-Type 3” deck without concrete.

7. Please confirm the SSHO and QCM can be a dual hat role per 01 35 26 - 1.7.1.1.1

- Yes. The SSHO may also serve as the Quality Control Manager. The SSHO may not serve as the Superintendent per Div 01 35 26 - 1.7.1.1.1.

8. Please confirm the Environment Manager must be onsite at all times and have no other role on the project.

- No. The Environmental Manager (EM) does not have to be on site at all times but must be responsible for implementing all duties specified in Div 01 35 26 – 1.5.1. The contractor is not prohibited from assigning an additional role to their assigned EM.

9. Please confirm that in addition to the onsite QCM, Contractors are to employ specialized technicians, to be onsite during the respective scope of work, as outlined in 01 45 00 – 3.4. CQC Personnel.

- Yes.

10. Please affirm that the silt fence as shown on C-5O2 detail 1 is only for two sides of the project as shown on page CD 101 detail 4.

- Yes.

11. Room Finish Schedule on A-601 references CT-1 for wall finish for rooms 110, 111, 113, 114,

120. However, CT-1 is not listed in the Color and Material Schedule on A-601. Please provide CT-1 manufacturer and color information.

- CT-1 basis of design is Emser Tile, Council, Ivory 12”x24”

12. CD101 Note 2 requires demo and removal of existing security fencing and install temporary fencing to ensure security. Is detail 4/C-501 to also serve as the temp fencing detail? If not, please confirm temp security fencing detail.

- No. At the minimum, the temporary fencing shall be 6 feet high, metal panel and shall be clamped together. Temporary fencing shall be secured with sandbags. Barbed wire will not be required.

13. Is the temp security fencing to be routed to enclose the erosion control fencing identified on CD- 101, note 4?

- No. The temporary security fencing shall only be routed around B235.

14. Spec 01 30 00-1.2 requires monthly progress & completion photos. Please confirm this requirement in light of the within the secure area building being of the base.

- Progress and completion pictures shall be required per Div 01 30 00. The contractor must secure a Photo Pass from the Government provided that no photos are taken facing the flightline or any military aircraft.

15. Dwg I-501 and specification section 10 14 00.20 do not clearly indicate the sign material and color for sign types A & B. Please provide.

- Provide per specification section 10 14 00.20 section 2.1.1 Modular Sign Systems. Provide color samples during construction for selection by the COR.

16. AD301 indicates existing equipment to be removed and stored. Please provide clarification regarding location where equipment is to be moved and stored by Contractor.

- The Government shall provide a suitable location to store equipment for reuse. Further details will be provided after solicitation.

17. 5/A-525 provides a limited detail for the Aluminum Sunshade, however, there appears to be no specification for these sunshades. Can a specification or basis of design be provided?

- The basis of design is Architectural Louvers H6T Sunshade Louvers.

18. 13/A-525 provided limited detail for horizontal fall protection system. Can a specification or basis of design be provided?

- The basis of design is Falltech 18-inch high galvanized Weld-on Post Anchor with swivel D-ring and SRL Cradle.

19. Unable to confirm if the exposed exterior CMU is to be painted or sealed. Please confirm and provide product specification.

- Provide sealer per specification section 07 19 00 Water Repellents. (B. Smith)

20. Will the Gov’t remove the warehoused equipment (excluding Paint Booth and Identified equipment on plans) prior to demo of B240?

- As stated in General Notes (f), all items not identified on plan to be removed and reused are to be demolished and disposed by the contractor.

21. Please confirm the existing light fixtures, roll-up doors and ceiling mounted gas heaters in B240 are to be removed and not salvaged by the Contractor.

- Yes.

22. If Bid Option 1 – Demo B240 in not awarded, does the existing equipment identified to be moved and stored by the Contractor remain in the B240?

- Yes.

23. Can the new building design/reactions loads be provided to determine pile loads and depth or are Contractors to rely on the depth and size of piles as noted on detail 7/502 for bidding purposes?

- Vertical Load Bearing: 56 Kips, Uplift: 37 Kips, Lateral load at top of pile: 10 Kips

24. Is an alternative deep foundation design to that of micro piles acceptable, if a fully designed solution is provided to the Government?

- No

25. A-450 identifies the following items that are not specified in the specifications:

Note 1 & 2 – Precast shower pans

- Provide solid surface shower base for ABA and non-ABA showers with square drains per P-401. Color:

White.

Note 6 – Stackable Washer/Dryer Unit

- The stackable washer/dryer will be Government furnished, Contractor installed (GFCI)

26. A-451 identifies shower curtains in the detail drawings, but not called out in the notes nor is a specification provided. Please clarify.

- Provide 70”Wx72”H Opaque, matte white vinyl, minimum .008” thick.

27. A-453 Note 11 calls for an ABA Compliant Air Shower. No other information in the drawings or specifications is found. Please clarify.

- Basis of Design is LP Straight-through Clean Air Products: Low-Profile ADA Compliant Air Shower.

28. A-110 identifies windows as W-1, however there doesn’t appear to be a window schedule provided to also include the 4 larger windows on the corrosion control side. Please provide window schedule.

Provide window W-1 per drawings and specification section 08 51 13 Aluminum Windows. Window size is 6’-8” wide by 4’-0” high. Bottom two window panes are to be one complete operable portion of the window system to match the existing adjacent windows.

4 Large openings per keynote 3 on sheet A-202 are translucent panel window systems. Provide size per Latitudinal Section 2. Provide per specification section 08 60 45 Translucent Panels.

29. Detail 1/M501 refers back to the architectural and structural drawings for information on the equipment platform however there is no information in the architectural or structural drawings in this regard that I can find. It appears from the detail that the roofing goes underneath these base rails, are we interpreting the detail correctly to say that the base rails do not need to be attached to structure, and that the condensing unit, and base rails are to sit directly onto the roof?

- Provide a prefabricated fire treated wood platform attached to 2x treated wood nailers through bolted to the metal deck. At top of platform provided ¾" plywood secured to fire treated wood 2x4 at 12 inchs on center. Platform must be a minimum of 8 inchs high from the top of roofing membrane and roofed up the vertical face of the platform. 8 inch must be from the high point of the roofing system. Provide 20 GA galvanized metal flashing cap over the top of the curb with galvanized sheet metal counter flashing.

Platform must be level for installation of the CU’s. Attach CU’s to prefabricated platform per manufacturer recommendations.

30. There are no Basis of Design manufacturers given for the HVAC Equipment. Can the brands/Model # of the intended BOD HVAC equipment be provided to us?

- The government does not permit the listing of manufacturers for mechanical equipment. Equipment complying with the performance requirements of the drawings and specifications are acceptable.

31. Horizontal discharge is shown for the MAU-1, and includes rooftop ducting with this application.

Would it be acceptable to have a bottom (vertical) discharge unit, so there is no need for a roof penetration outside of the curbing?

- A down shot configuration would be acceptable.

32. Future 20ft. x 6ft Paint booth Louver shown on M-110: What type of factory finish is preferred on this louver?

- Provide finish per specification section 08 11 13, Subsection 2.3.1.2 Exterior Louvers.

33. Small Louver shown on page M-110, on grid line 1 between gridlines B&C shown in the screenshot below has no information. What is the size of this louver, and the preferred factory finish? This louver is also not shown in the elevational drawings. We assume this will be installed above the double doors, is that correct?

- 12”x12” above the double doors. Provide finish per specification section 08 11 13, Subsection 2.3.1.2 Exterior Louvers.

34. SDT-1 Tarkett IQ Granit SD, Misty 074 12" x 12" - is not available as a Static Dissipative in a 12" x 12' and the color has been dropped. Please specify alternative.

- This product is identified in the PDX base architectural standard. We recommend the following as an alternative basis of design: Tarkett IQ Granit SD, Clay 0474, 24”x24”.

35. VCT-1 Tarkett Azterra, Perla AT105 12" x 12" is a dropped item. Please specify alternative.

- This product is identified in the PDX base architectural standard. We recommend the following as an alternative basis of design: Tarkett TCT II, 556 Sandstone, 12”x12”

36. Drawing T-001, Telecommunication Division Specifications, Div 33, 33 82 00 Telecommunication Outside Plant. This specification is not in the provided specifications of bid documents. Please Provide.

- Disregard reference on drawing T-001 to 33 82 00 Telecommunication Outside Plant. There is no outside plant scope on this project.

37. Spec 05 12 00 1.5.3 requires AISC Steel Fabricators and Erectors. Would the government consider waiving this certification requirement, due to the very limited number of certified local fabricators/erectors? In lieu of AISC, utilize 3rd party inspectors for fabrication and field erection.

- No. This is a standard UFGS requirement and a quick search of AISC’s certification site indicates there are several certified fabricators and erectors in the region.

38. Please confirm/specify whether the new CMU exterior walls require paint or block sealer.

- Provide water-repellant admixture per specification section 04 20 00 Unit Masonry, Section 2.2.2.1.3 Weather Exposure.

39. The contract specifications do not provide a specification for the micropile scope. Please provide the applicable specification section.

- Specification 31 63 29 DRILLED CONCRETE PIERS AND SHAFTS is the applicable spec for the micropiles. Note that detail 7/S-502 indicates the micropiles are driven. This is incorrect, the micropiles are drilled and cast-in-place.

40. Is ASTM C-595 Type IL cement an acceptable alternative to ASTM C150 Type I/II cement for use in the neat cement to be used on the micropile scope? ASTM C150 Type I/II cement is no longer being manufactured and/or readily available.

- Yes, this is acceptable

41. We are reviewing the micropile installation for the referenced project. During our review of Sheet S-110 the pile layout does not appear consistent, i.e. a large number of piles in the northwest on grids A, 3, and 4, and very few piles under the remainder of the structure that would appear to have similar loading. Will there be any additional or addenda drawings?

- See the update foundation plan attached, the piles didn’t plot correctly on the original drawing and have been updated. Original drawing S-110 called for 31 piles, this updated plan calls for 33 piles, 2 additional.