70Z04018QP3041500_A00001_(Cont.).pdf

STA YAQUINA BAY (52312) 70Z04018QP3041500

Question 1:

WORK ITEM 1: General Welding, Provide

3.3 Bid ding. The Contractor shall ensure for bidding purposes this specif ication will be broke down by the follow ing:

Crop & renew the stbd aft main deck steel 3 ½” gooseneck vent pipe.

Crop & renew port #5 main deck stanchion

Is the material to be used supposed to be 316 Stainless Steel?

ANSWER 1: Renew in kind

Question 2:

3.3 Bid ding. The Contractor shall ensure for bidding purposes this specification will be broke down by the following:

Crop existing open bridge-to-cabin QAWTD mounting hardware and renew with stainless steel components.

What components are not 316 stainless steel, are pictures available, and will this QAWTD be reinstalled using the original Huck Bolt System?

ANSWER 2: The hinge assemblies and dogs are not 316 stainless. Attaching pictures to a specification make it extremely difficult to attach via email & upload to FBO. Recommend a site visit.

A separate work item outlines the deta-couple install, eliminating the "huck bolt" system

Question 3:

Install eight (08) D-rings in the vicinity of the open steering station; at locations designated by the COR

Are these D-rings aluminum and welded to the super structure, or like the ones we have built in the past that are out of 316 SS with backing plates?

ANSWER 3: Aluminum rings welded to the superstructure

Question 4:

Crop existing rope guards at base of mooring bitts and renew with GFE guards

Can you provide pictures of old and new guards to be renewed?

ANSWER 4: As with 2b, recommend a site visit

Question 5:

WORK ITEM 3: Hull Plating (U/W Body), Inspect

3.2.7.1 Visual. Perform a visual inspection of the existing U/W body coating system.

In our past previous contracts from the 80’s & 90’ this inspection was used to turn on optional items that the contracts had, such as 100% Under Water Body Renewal or to just do a partial 10%, which was to blast all of the A/F off to the epoxy and build the system back up. They found that this 10% did not work well on the small boats so started doing just the 100%. We still inspect this, but knowing we have the D-Item to complete this 100%, which is as far as it needs to go for inspection.

Under the note it is requesting for a QP-1 or Nace Inspector, is this necessary since the bottom of the boat is going to be 100% sand blasted and painted? The only thing this would determine is how often the station personnel painted the bottom over the last 5 years.

Previous USCG Answers: We are using standard work Items in our specification. This Work Item has the potential for use during a dry dock where the Coast Guard requesting information for determining bottom paint requirements and whether a platform requires full or partial painting. For this contract we a requiring 100% bottom paint under work Item D-23. No DFT measurements are required from the contractor. Port Engineer will take the responsibility to complete DFT requirements. UPDATED in REV-1 to reflect. 3.2.7.2 and 3.2.7.3 deleted from package

Previous USCG Answers:

NOTE:

These inspections are for determining the existing condition of the coating system for the underwater body surfaces, which are deemed “Critical-coated” surfaces; they must be carried out by a SSPC-QP-1 certified contractor/sub-Contractor or a NACE Inspector – see SFLC Std Spec

0000, paragraph 3.2.4.2 (In-process QC measures for “critical-coated surfaces”).

Spec Writer Reply: Prior to applying paint contractor will be required to prep surfaces to SSPC-QP-1. CG Port Engineer will verify no need for outside NACE inspector.

3.2.7.1 Visual. Perform a visual inspection of the existing U/W body coating system.

Spec Writer Reply: complete visual inspection

ANSWER 5: Recommend a site visit.

Question 6:

WORK ITEM 4: Deta-Couple Installation This is for area clarification. Are we renewing only the exterior huck bolt system, at deck level, and not the interior ones, that run, athwart ship on bulkheads 16, 21, and 26?

ANSWER 6: The existing huck bolt system is being removed and replaced with deta-couple

Question 7:

WORK ITEM 4: Deta-Couple Installation

We have installed several of these systems utilizing both the ¾ inch wide and the ½ wide

Deta-couple, what would you prefer to use?

ANSWER 7: 3/4"

Question 8:

WORK ITEM 15: Sea Strainers - Duplex (All Sizes), Overhaul

3.2.2 Reassembly. Reassemble each strainer, using new packing gland fasteners. Renew all associated gaskets, packing and O-rings. Renew all baskets. Lubricate the valves with plug valve grease conforming to AMS-G-6032.

If the baskets are cleaned and are in new condition can they be reused?

Reason asking, is for years, that is all we did, (which saved about $600.00, that is if the contractor replaces them) and sometimes not available. Just FYI.

ANSWER 8: Renew baskets

Question 9:

WORK ITEM 19: Fire Pump, Overhaul

3.3.1 Renew port and stbd fire Pump to Power Take Off (PTO) drive belt in accordance with Coast Guard Drawings 52 MLBS 4000-1, Coast Guard Drawing 52 MLBS 4700-5, and Coast Guard Drawing

52 MLBS 4700-6.

Just double checking on the belt, this is the correct one that is listed in the print?

ANSWER 9: It is the correct belt P/N based on the referenced drawings

Question 10:

WORK ITEM 22: Non Machinery Bilge, Internal Surfaces, Preserve

WORK ITEM 23: Decks – Exterior, Preserve

WORK ITEM 24: U/W Body, Preserve (100%)

WORK ITEM 25: Hull Plating Freeboard, Preserve “100%”

WORK ITEM 26: Superstructure, Preserve “100%”

WORK ITEM 27: Bilge, Engine Room, Internal surfaces, Preserve

Just needed verification that all of these work items is to have the surface prep to SSPC-

SP 10/NACE No. 2 sand blasted surface?

ANSWER 10: Correct

Question 11:

WORK ITEM 22: Non Machinery Bilge, Internal Surfaces, Preserve

Just needed verification that both of these work items, surface areas, is from the deck plate frame work down including the frame work and the top of the water tank?

ANSWER 11: Correct

Question 12:

Just needed verification that the bilge surface areas also include the entire MDE frames, fire pump frames, battery frames, and all the other brackets and frames that are in that bilge area as well?

ANSWER 12: Correct

Question 13:

WORK ITEM 23: Decks – Exterior, Preserve (“Non-Skid Broadcast Grit” System)

Are we to maintain the exact same non-skid configurations and patterns, such as corner radiuses etc, which are existing on the boat now?

ANSWER 13: Yes; SSPC-SP 10/NACE No. 2

Question 14:

WORK ITEM 28: Cathodic Protection / Zincs, Renew

TABLE 1

- ZINC

ANODE

LIS T

QT

Y

TYP

E

SIZ

E

LOCATION

6 Zinc, Barrel shape 2 1/8” diameter Port & Starboard s hafts (3 each) 6 Zinc, Rectangle s hape

12” x 6”

Hull – 6 locations

There are different thicknesses for this zinc size. Are we to use the 1 ¼” x 6” x 12” bolt ons?

Answer 14: Rev-1 (dated 11 Jan) lists the 12" X 6" anode. The table listed in the contractor questions is formatted differently than the Rev-1 spec

Question 15:

WORK ITEM 33: Mast Inspect and Repair

3.3 Repair. The Contractor shall remove, straighten, and install mast assembly to include crop and renew of foundation plate

Is it possible to get pictures of the mast to see the extent of repairs needed?

ANSWER 15: As with 2b & 4, photos in a spec prevent us from emailing/posting. Recommend site visit

Question 16:

WORK ITEM 34: Ship’s Service Diesel Generator, Replace

(52312)

All of the drawings are not available, can I get current ones on the modifications on all new piping, brackets, etc needed?

ANSWER 16: Revised drawings will be available on or about 08 February 2018. Please email

Sandra.J.Fletcher@uscg.mil to request the revised drawings.

mailto:Sandra.J.Fletcher@uscg.mil