Questions_ _Answers_-_Amendment_01.pdf

AMENDMENT 01

Major Repairs at USCG IPD South Weymouth

HSCGG1-16-B-PRX034

PSN: 5729599

CLARIFICATIONS

12 May 2016

QUESTIONS AND ANSWERS

1. Confirm fence fabric (gauge and coating); see drawing C-501, general note 1.

Response: Specifications call for 9 gauge galvanized steel. The drawing general note is generic.

2. General note 2 (drawing C-501) calls for 12 gauge steel ties. Specifications call for 9 gauge.

Response: Use 9 gauge steel ties, per the specifications.

3. General note 3 (drawing C-501) call for top and bottom tension wire on the fence, vs.

drawing detail 1 which shows continuous top and bottom rail, vs. detail 2 which shows top tension wire and continuous bottom rail. Please clarify.

Response: The details are generic; see C-101 general note A. Typical security fence shall be FE6-TBR-84. The legend shows this to be Chain Link Fence with barbed wire on single outrigger, top and bottom rail, 84" wide fabric.

4. Does the Coast Guard have a vendor who makes the pedestal and housing for keypad/intercom specified?

Response: We don’t have a specific vendor or model, but several manufacturers offer (possibly custom) designs that meet the requirements.

ADDITIONAL QUESTIONS

5. Will the Government be issuing the sign-in sheets from the site visit?

Response: See attached.

6. Has the Government determined a route for daily materials and debris removal?

Response: No, the contractor will propose a plan for Government approval.

7. Is there enough room for a dumpster to be located on the property near an accessible exit for trash removal daily?

Response: Yes.

8. Will the Government require debris inventory for items recycled, sent to waste facility or land fill?

Response: Yes, see Specification 01 57 19.00 20 Section 1.6.8.

9. Is there a storage area for materials to be brought in and stored for the project?

Response: Yes, see specification 01 50 00.

10. How much notice will need to be given to occupants when necessary to get into ceilings in inhabited work areas?

Response: See Specification 01 14 00.

11. Will the fire sprinkler system and/or the fire alarm system need to be disrupted during construction?

Response: The building will be occupied throughout construction so the Fire Alarm must remain active.

12. If yes, what if any additional security measures will the government require e.g. fire watch, temporary fire alarms, adjustments to sprinkler heads, etc.

Response: No.

13. Does the Government have a fire alarm servicer that they currently work with?

Response: Norel Service Company 230 2nd Ave, Waltham, MA 02451 Phone: (781) 768-5500

14. What is the name and contact information of the person or persons that will need to be coordinated with for security and fire alarm and suppression systems work and/or disruptions?

Response: The Contractor should coordinate all work with the Government Construction Project Manager/COR.

15. Does the Government currently have a 3rd party testing service for those items requiring testing or is the contractor free to locate and hire applicable testing firms?

Response: The Contractor should hire independent testing firms.

16. What interruptions to the security systems will be acceptable when doing the building envelope? i.e. will security cameras have to be returned daily?

Response: Yes, security systems should remain active when construction ends each day.

17. Will temporary protection for weather tightness be acceptable for short durations? i.e.

tarping the walls or roof during construction?

Response: See Specification Section 01 14 00, Paragraph 1.2.4.

18. Item 0004, is the interior structural steel painting only in the older section of the building or in the entire building?

Response: It is the entire building.

19. What surface prep is expected for the interior painting? Minimal scraping and sanding, media blasting, or something else?

Response: See Specification 09 90 00 Paragraph 3.3

20. Item 0003 please clarify which of the doors is to be in-filled, and which is to be replaced.

Response: See Drawings AD 202 and A 202 for the location of the door to be in-filled.

Also see updated bid sheet, attached.

21. Can you provide a better detail on where the number, locations, and sizes of the primary and secondary support members for painting purposes?

Response: No plans are available for these items.

22. Will this building be occupied at any stage of construction?

Response: Yes, see Specifications Section 01 14 00.

Overhead Coiling Doors

23. The door finish is not specified. Should the aluminum be mill finish or clear anodized?

Response: The doors shall be 24 ga. Galvanized steel front and back curtain with a two coat system application process of zinc rich powder coating for improved corrosion resistance, 5 year finish warrant, in manufacturer’s standard color selections.

24. Para. 2.2.1 specifies a wind loading of 110 which corresponds to a wind speed of 207 miles per hour. This appears to be in error and is not available. Please clarify the intent.

Response: Design and fabricate door assembly to withstand the wind loading pressure of at least 26 pounds per square foot with a maximum deflection of 1/120 of the opening width.

25. Para. 2.3.4 describes Vision Panels but none are shown in the various elevation drawings.

Are they required and, if so, in what pattern?

Response: No vision panels are required.

26. Would a galvanized steel curtain with a grey baked enamel paint finish be acceptable in lieu of the aluminum doors?

Response: Yes

27. Please detail the jamb for the 20x25 coiling door. Due to the anticipated weight it should be heavy duty C-channel as it will operating a ton or more.

Response: The 20x25 coiling door is a replacement door in an existing opening and its existing channel frame supports a similar door.

HVAC

28. During panel replacement it will be out of service for at least 8 hours. Does this have to be done during off hours or weekends?

Response: Yes or scheduled with the COR at least two weeks prior to the outage.

29. To verify existing panel schedules we need to turn off circuits. Does this need to be done during off hours or weekends?

Response: Yes or scheduled with the COR at least two weeks prior to the outage.

30. Note #9 on page EP101 says to use cast iron junction boxes to connect existing feeds.

These are used for explosion proof areas do they need to be cast iron or can we use standard steel boxes.

Response: Cast metal junction boxes are commonly used in exposed locations, and shall be required on this project. Do not use stamped steel boxes for electrical equipment installed in exposed locations.

31. On Mechanical drawings at the welding station it says the wiring will be classified for Hazardous location but nothing is said in the Electrical drawings. Does the wiring to the Welding outlets, VFD’s and exhaust fans have to be Explosion proof?

Response: The equipment is not required to be explosion proof.

32. Also Note: the panel schedule for NL1 on Sheet E701 does not contain the AIC Rating.

The AIC Rating for this panel shall be 14,000 Amperes.

ADDITIONAL CLARIFICATIONS

33. Regarding the coiling overhead doors that are being replaced, for the base, only the large west-facing door and, for the option, only the large south-facing door will be motorized.

Replacements (with new) of all other coiling overhead doors will have manual operation only.

34. Regarding extended work hours, see Specifications Section 01 14 00, 1.2.2 and 1.2.3. The building envelope and roof must be secure and weather-tight at the end of each workday.

35. Neither building permits nor local inspections are needed. Compliance with all codes and regulations as called out in the plans and specifications is required.

36. ITEM 0003 – Optional Bid Item 2, is amended to allow pricing on each coiling overhead door. See revised Section B, BID SHEET, attached.

37. Replacing exterior metal siding does not include the 1996 addition, nor the attached shed on the north side of the building, nor the siding of the original building that forms the rear of the attached shed on the north side of the building.

38. Between June and mid-October, the CG plans to remediate the site soil to the existing perimeter of the site in four phases. See attached phase plan. Coordination with that project will be required, especially if the fence replacement (ITEM 0002, Optional Bid Item 1) on this project is awarded/exercised. Phases are currently scheduled as follows:

a. Phase 1: 6/9 – 7/13

b. Phase 2: 7/14 – 8/17

c. Phase 3: 8/18 – 9/14

d. Phase 4: 9/15 – 10/12

39. Appliances attached to exterior of building have to be removed before siding demolition, stored and protected during construction, and re-attached before the end of the project (you folks OK with this timing to re-attach?). HOWEVER, externally mounted tubing (metal conduit) shall be re-attached in an analogous position, but inside the building, with appropriate penetrations to support the associated appliances.

40. De-icing cables on the roof to be removed and disposed of (properly).

41. PPE at the site is typical construction gear.