VI_JFHQ_Bid_Questions Set 3.pdf

VIARNG - JFHQ Bid Questions

FDWD3900

Question Reply Date

1 On the sheet C-131, grading plan, there is no existing elevation data. Please provide the existing elevation for site work.

Response: This issue was identified by our design team. The level/layer for the existing contour lines was incorrectly turned off. The Contracting Officer uploaded sheets C-101 “OVERALL EXISTING CONDITIONS SITE PLAN” and C-102

“ENLARGED EXISTING CONDITIONS SITE PLAN” and are now showing the existing topography.

7/19/11

2 Detail C4/S-534 references bottom of slab at EL

9’-0” and B3/S-502 references bottom of slab EL

8’-0”. Which elevation is correct?

Response: El 8'-0" is the correct elevation. 7/20/11

3 Detail A2/A-313 and drawing A-112 shows drywall at the inside north wall of the elevator shaft. Please confirm if this is required and if so, at this location only.

Response: The north wall in the elevator shaft is also an exterior wall envelope boundary that is required to have insulation.

7/20/11

4 The floor plans reference a partition type 02A, yet there is no corresponding detail on drawing

A-501. Please advise.

Response: There is no partition 02A. This should be partition 02. 7/20/11

5 Please confirm that the restroom ceilings on the

2nd floor are exposed to the structure above –

Rooms A-252, A-251, A-242, A-243, A-230 and A-

231.

Response: These areas have gypsum ceilings. Reference finish schedule. There is an error in the sheet with the gypsum pattern not showing up.

7/20/11

6 Drawing A-132 shows the entrance vestibule at the North entrance of General Admin. A-204 as exposed to the structure above while detail

D5/A-503 shows a drywall ceiling.

Response: This area has a gypsum ceiling. Reference finish schedule. There is an error in the sheet with the gyp pattern not showing up.

7/20/11

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7 Please confirm if plaster is required at the inside concrete walls of the stairwells and all concrete walls that are not shown as drywall.

Response: No plaster is required. Reference finish schedule. 7/20/11

8 Landscape plans specify that turf areas are to be seeded, but does not provide for a particular species. The specifications (Section 329200 Turf and Grasses) states that solid sod (Zoysia) is to be installed. Please clarify turf species and that seed is to be required and not sod. Sod will be prohibitively expensive if required at all green areas.

Response: Seeding is acceptable to establish lawns. Based on soils report adjust soil ph so that it falls between 6.0 and 7.0. Seed with Argentine Bahia grass at a rate of 3 lbs./1000 sf., sewing half the amount in one direction and half in a perpendicular direction. Do not allow germinating seed to dry, watering daily if necessary; do not allow the top ½” of soil to dry.

7/20/11

9 Are Irrigation plans going to be issued in an

Addendum?

Response: No. Irrigation is no longer within the scope of this project. 7/20/11

10 What are the species of the trees and shrubs for

OLI No. 10?

Response:

Trees: 5 West Indies Mahogany (Swietena mahogany)

Shrubs: 13 Dwarf Yellow Ixora (Ixora ssp)

7/20/11

11 Please confirm that the flagpole designated ‘RTI

Flagpole’ on detail B5/L-101 is not by others and to be included in this contract.

Response: Flagpole is not by others and should be included with this project.

Flagpole model is to be coordinated with owner; installation per manufacturer’s recommendation. Recommend minimum height of main pole (American Flag) to be 40’.

7/20/11

12 Please confirm that precast concrete wheel stops are to be provided at every parking space, both MV parking and POV parking.

Response: Precast Concrete wheel stops, as indicated in sheet C-511, are to be provided in the POV parking spaces only.

7/19/11

13 Drawing C-512 detail 6 references concrete pavement. Please confirm that there is no concrete pavement on this project.

Response: There is no concrete pavement required in this project. 7/19/11

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14 Drawing C-122 calls for electrical generator by others, please confirm that the (2) concrete pads per drawing C-520 detail C1 are still to be included in this contract.

Response: The Electrical Emergency Generator is not part of the scope. There are two (2) concrete pads indicated in detail C1 on sheet C-520. The pad that has dimensions of 30’-0” long by 10’-0” wide can be disregarded. The concrete pad that is 14’-0” long by 7’-0” wide is part of the scope. This pad is for the

Generator Switchboard GEN-1. Please refer to sheet ES-001. The dimensions of all concrete pads shall be verified with the final vendor drawings for all electrical, mechanical and any pad mounted equipments , but the minimum dimensions are the ones specified in the details.

7/19/11

15 Drawing C-122 shows (1) concrete pad for the antenna in this contract. Drawing C-520 detail

C3 shows a pad for electrical equipment and

C.U.–6 as well. Please confirm that these (2) additional pads are to be included and just were not shown on C-122.

Response: Not all concrete pads were identified in sheet C-122 for clarity purposes but the basic graphic shape was. The additional two (2) concrete pads, identified in sheet C-520, along with all other concrete pads, were indicated in sheet C-123 where the points were called for. Therefore, as indicated in sheet C-

123, these two (2) concrete pads are to be included. The dimensions of all concrete pads shall be verified with the final vendor drawings for all electrical, mechanical and any pad mounted equipments , but the minimum dimensions are the ones specified in the details.

7/19/11

16 Can you please provide a specification for the

Xypex cistern waterproofing product called out for in note 3, drawing C-523.

Response: The CSI Specification 07160 Coating, may be found at:

Part 1 - GENERAL:

"http://www.xypex.com/specs/csi_c.php?t=general&pageID=48"

Part 2 - PRODUCTS:

"http://www.xypex.com/specs/csi_c.php?t=products&pageID=49"

Part 3 - EXECUTION:

"http://www.xypex.com/specs/csi_c.php?t=execution&pageID=50"

7/19/11

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17 Can you please provide a specification for the exterior waterproofing membrane called out for in note 4, drawing C-523.

Response: Please use as a Basis of Design "Bituthene System 4000 for below grade applications, by W.R. Grace, following all the instructions and recommendations for surface preparation, installation and testing, among others, from the manufacturer.

CSI Specification 071300 Sheet Waterproofing, may be found at:

"http://www.na.graceconstruction.com/waterproofing/download/BIT-

012W_21.pdf". Contractor may submit a US made equivalent as indicated, but it will be evaluated base on the basis of design indicated herein.

7/19/11

18 Please advise if below grade waterproofing is required at the elevator shaft.

Response: Reference detail A1-313 note 15. 7/20/11

19 For the operable partition OLI-3 please confirm if the finish is to be vinyl fabric or woven fabric.

Also reference is made to work surfaces on the panels, if required please provide size, quantity, location etc. Will pocket doors be required?

Response: Please provide vinyl fabric finish. Pocket door will not be required. 7/20/11

20 There is no definition of what is considered a ductbank. There are various trenches which contain only one underground conduit. For the purpose of applying the various requirements of this section can you provide a further definition as to when conduit in a trench is considered a ductbank?

Response: Duct-banks are a group of two or more conduits, installed in an underground trench.

7/19/11

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21 Can you confirm that single underground conduits such as site lighting conduit, which is underneath a parking lot or roadway needs to be concrete encased?

Response: Concrete encasement is only required where specified on plans.

Branch circuits such as site lighting do not require concrete encasement unless otherwise noted.

7/19/11

22 Can you clarify the requirements for counterpoise wire? E-502 A2 Note 4 references a 2/0 in what appears to be a direct burial ductback application but there is no indication of the wire in the pictorial section. E-502 A3 is a concrete encased ductbank application and there is no reference to the counterpoise.

Response: Note 4 refers to the required ground rod and wire required in each manhole and pull box. Refer to pre-cast pull box details for HH and MH on E-

503. All ground wires should be 1/0 and not 2/0. Revise to a # 1/0 ground.

Bond all metal pull box covers with a minimum of #4 AWG. Delete the portion of the ground wire in the pull box details shown as continuing to a counterpoise.

There is no counterpoise in this project.

7/19/11

23 Are concrete warning planks required on trenches containing single ducts?

Response: Concrete encasement is only required where specified on plans.

Concrete warning planks are not to be used. Delete reference to Concrete

Warning Planks in section 2.2-C.3 of specification 260543.

7/19/11

24 E-002 electrical single line diagram – there is a reference to a key note 3 for power metering but no such item is found in the drawings. Can you confirm whether we are metering the primary side or the secondary side?

Response: Delete Key Note 3. WAPA Utility is providing metering to the primary side on this site. Contractor is to provide electronic power metering at the main switchboard breaker as indicated on the plans and specifications.

7/19/11

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