Q&A_W912BU20Q0001_11-7-2019.pdf

Q&A MDC 3277 Murden Dry Dock Repairs

W912BU19Q0001

Updated November 7, 2019

1- What is the location and time of the site visit for the Dredge Murden on Oct 28?

Information can be found in the document title Combined Synopsis/Solicitation W912BU20Q0001 under additional requirements.

Pre-proposal vessel inspections is available for all prospective offerors. The pre-proposal inspections is scheduled for October 28, 2019, between the hours of 7:00 AM and 3:30 PM.

Representatives of prospective offerors should contact Joen Petersen at (910) 251-4983 for the specifics of the exact location. Any change to schedule will be announce through notice amendment.

During the pre-proposal inspections, offerors will be allowed unencumbered access throughout the entire vessel. Representatives of the Government will be available, but only to the extent necessary to escort offerors and assist with access. Government Representatives on the vessel will NOT discuss the scope of the work, or make any technical clarifications or interpretations.

2- Does the Dredge Murden have to be docked in the open position?

Yes the MURDEN needs to be docked in the open position.

See TP 1.01 Dry-Docking Part e. "Dry-docking blocks and other dry-docking supports shall not obstruct access to remove, work upon, or replace: inlet and outlet openings, seachests, anodes, stern thrusters, keel coolers or any other hull fittings. The Contractor shall remove and relocate dry-docking blocks and/or supports, or refloat and re-dry-dock the plant, as needed at no additional cost to the Government in order to dry-dock in the open hull block arrangement, assure complete coverage in cleaning and painting or for any other work as specified herein. Prior to doing so, the Contractor shall notify the COR of their plan to relocate the blocks to adequately support the vessel."

3- In the open position can it be hauled with a 30" opening?

The intention of the requirement to dry-dock the vessel in the open position is to allow for access to repair work to be completed, including the replacement of the hopper seal. Any alternative dry-docking arrangement shall be submitted to the Government with calculations for approval. The Contractor shall also ensure all work identified in the solicitation is completed using their planned dry-docking sequences.

4- Can the start of this project start in January?

January start is acceptable, as long as it is no later than (NLT) January 15, 2020.

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5- The scope of work section SC-2 calls for the vessel to be hauled with a dry-dock. Would it be acceptable to haul it with an 820MT travel lift and block it in the yard as opposed to dry-docking?

The Technical Provision, TP 1.01 Dry-Docking states "The Contractor shall use either a dry-dock or marine railway to remove the vessel from the water." This section also includes the requirement that the vessel be dry-docked in the open hull block arrangement, which would require the vessel to be lifted in the open hull position. The hull structure was not designed to support the lifting of the vessel using a travel lift in the open hull position.

6- Can I get a copy of the docking plan in CAD?

Yes, you will find AutoCAD Docking plan as attachment 5.

7- Can the required submittal date be extended until COB on November 15, 2019?

Yes, combined synopsis/solicitation is being extended until 11:59 P.M. EST November 15, 2019.

8- Item 1.05- Para. 3, can UHP be used only vice sandblast or Sand wash?

The contract requires a surface profile be provided and UHP water blasting does not create a profile on the steel therefore UHP water blasting cannot completely replace the sand blasting process.

9- Do you know the approx. square footage of the flooring the Control Room, Day Room, Computer Room and Head?

336 sqft.

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Q&A added November 4, 2019

10- Section TP 1.05

A. Several of the mentioned spaces have mineral wool blanket insulation and perforated metal sheathing. Is it the intent of USACE to have this material removed and reinstalled after blasting and preservation of area?

TP 1.05 Interior Cleaning and Painting, Part b. Procedure, No. 1- have been updated in the Statement of Work Rev. 5.

TP 1.05 Interior Cleaning and Painting, Part b. Procedure, No. 8 – was added in the Statement of Work Rev. 5.

B. Is the main engine room being considered as a one of the machinery spaces?

No, the Engine Room located in the Deckhouse is not included in the spaces to be sandblasted, cleaned and painted under TP 1.05.

C. This items is requesting a near white sandblast for all machinery spaces and voids in the hull.

Is the Corp expecting the contractor to remove all the perforated aluminum sheathing and insulation to accomplish this task?

See above, Question 10A.

11- Section TP 1.07

A. Do you want to store the fuel in a clean container vice purchase new? If not what kind of fuel do you need?

Per Technical Provision, TP 1.07 Cleaning Fuel Tanks, Part 7. The fuel tanks shall be filled with new fuel in the same amount of fuel that was removed from the tanks for cleaning. The new fuel shall be Ultra Low Sulfur Diesel. Section have been updated in the Statement of Work Rev.

5.

12- Section TP 1.08

A. Does USACE expect all the welds to be mag particle tested as part of the inspection process?

No, only visual inspection. Condition Found Report (CFR) produced from inspections shall identify any conditions that require further examination.

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13- Section TP 1.10

A. How much lower does the chain locker bottom need to be? What is the construction of the bottom of the bottom?

The port chain locker bottom shall be lowered so that the top of the structural supports are 3' 7 " above baseline per drawing 702-C421-01-B. Details on the construction and structural members that make up the chain locker can be found in drawings 702-D301-01 and 702-D421- 01 in addition to 702-C421-01-B.

14- Section TP 1.13

A. Can USACE clarify the intent? Work item states to remove the existing doubler plate and install new plate. Currently there is no doubler IWO anchor shoulders. Is the intent to add additional plate below existing doubler?

The intent is to replace the existing doubler plate with the addition of the extended doubler plate per the specification.

15- Section TP 1.18

A. Is it just the bar grating or Angle also?

Offerors shall assume replacement of 150 ft of all materials that make up handrails per drawing 702- D425-02 and 50 ft of all materials, including structural members and grating, that make up the catwalk per drawing 702-D425-01.

16- Section TP 2.03

A. Second Paragraph states Contractor shall furnish labor to install 2 GFE redundant Raw water pumps. The following section TP 2.04 repeats the same scope. Should the pricing for the installation of redundant pumps be omitted from WI TP 2.03?

TP2.04 have been deleted from Statement of Work Rev. 5 as the work is identified in TP 2.03.

17- TP 2.04.

A. Installation of backup pumps in pump room. Same work is included in TP 2.03. Please, clarify where to price the installation.

TP2.04 have been deleted from Statement of Work Rev. 5 as the work is identified in TP 2.03.

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18- Section TP 2.06

A. WI states contractor shall renew the bow thrusters. Can USACE clarify the intent of renew? Is the contractor to assume renewal of seals and inspection of props only?

Yes, renew shall be assumed to be the renewal of seals and inspection of the props. Any additional repair work found shall be addressed through a Condition Found Report (CFR).

B. This item is requiring the removal and renewal of each thruster. Is the Corp asking for the removal and inspection of the units to provide a condition found report and the replacement of each unit with new seals, Or are they asking the contractor to remove each unit, repair(extent of repairs unknown at this time) each and then replace the units.

See above, Question 18A.

C. Remove the (2) BT, renew them in a clean environment and reinstall. Please, clarify SOW.

See above, Question 18A.

19- Section TP.2.10

A. Is the Hydraulic cylinder GFE?

No, the Contractor shall be responsible for procuring the hydraulic cylinders identified in TP 2.10.

20- Section TP 2.13

A. What drawing or drawings identifies the accumulator and intensifier? Need info on the parts for bidding.

Details on the Hull Water Hydraulic System are located on drawing 702-D655-01 - Hull Ram Arrangement & details. Specific parts information can be obtained from BOC Water Hydraulics, Inc.

21- Section TP 2.15

A. Quantities for connections, cableways, …any more information

Cables that run through the flexible exterior cableways are identified on the Electrical System One-Line Diagram (AC) drawing, 702-D720-01.

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22- Section TP 2.18

A. Do you have a Tech Manual for the Hydra- Pro Marine Deck Crane model HP 1212F?

A Tech Manual for the Hydra-Pro Marine Deck Crane model HP 1212F is not available.

23- Section TP 2.22

A. Is the intent to the entire fire piping system from the discharge side of pump throughout the vessel?

Yes.

B. Is the piping on the main deck to be Stainless>

No, all piping used under TP 2.22 shall be in accordance with the material called out in drawing 702-D675-01.

C. Duplex strainer needs to be replaced?

The duplex strainers are not required to be replaced per TP 2.22.

24- Section TP 2.26

A. WI states Contractor shall furnish labor to remove and replace all piping in deck house. Is the intent to remove joiner panels and replace all existing piping throughout the entire deck house including faucets etc.?

Yes, as stated in TP 2.26, "The Contractor shall furnish all labor and materials to remove and replace all potable water piping, valves, hoses, flanges, fittings and deck penetrations, in the deckhouse and the exterior potable water piping, port and starboard." The Contractor shall replace the faucet for the sink in the Head, but the faucet for the Day Room sink will be provided by the government, per

TP 1.14.

25- Can USACE provide CAD drawings to help facilitate pipe spooling?

CAD drawings will be provided to the contract awardee after award. For the purpose of submitting an offer, contractors shall estimate piping lengths from the provided drawings. All piping to be replaced under the specification shall be templated and routed off of the existing piping.

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26- Will USACE allow a second site visit for follow up information? An evening visit after normal operating hours of vessel is acceptable to minimize impacting vessel ops.

A second site visit to MURDEN is available on November 6, 2019. Representatives of prospective offerors should contact Joen Petersen, for the visit details, via telephone at (910) 251-4983.

During the pre-proposal inspections, offerors will be allowed unencumbered access throughout the entire vessel. Representatives of the Government will be available, but only to the extent necessary to escort offerors and assist with access. Government Representatives on the vessel will NOT discuss the scope of the work, or make any technical clarifications or interpretations.

27- I am requesting a document referred to in the specification that was not supplied. The document is as follows; “Painting: New Construction and Maintenance “ EM 1110-2-3400, 30 April 1995, listed on page 10, paragraph b.

“Painting: New Construction and Maintenance “EM 1110-2-3400, 30 April 1995 can be found at the following weblink.

https://www.publications.usace.army.mil/Portals/76/Publications/EngineerManuals/EM_1110-2- 3400.pdf?ver=2013-09-04-070832-857

28- Will USACE extend the submittal deadline?

On October 29, Combined synopsis/solicitation was extended until 11:59 P.M. EST November 15, 2019. See Question 7.

https://www.publications.usace.army.mil/Portals/76/Publications/EngineerManuals/EM_1110-2-3400.pdf?ver=2013-09-04-070832-857 https://www.publications.usace.army.mil/Portals/76/Publications/EngineerManuals/EM_1110-2-3400.pdf?ver=2013-09-04-070832-857

W912BU19Q0001

Q&A added November 7, 2019

1. Section TP 1.05

A. Will the vessel crew be responsible for the removal and reinstallation of all spares, tools, supplies etc. of each space?

Vessel crew will remove the items due to property accountability but would require the shipyard to provide climate controlled lockable storage for those items.

B. Statement of Work Revision

TP 1.05 was revised on November 4, 2019 to include the removal and reinstallation of sheathing and insulation. After further considerations, TP 1.05 has been revised again to remove those revisions and include identification of areas to be blasted, cleaned and painted in each space.

Please see the revised Statement of Work rev 6.

2. Section TP 1.09

A. What is the actual size and type of the rubber? Is it half round? Does the rubber come predrilled? There’s no bill of material on the drawing. What is the frame spacing from Frame 16 to Frame 31?

Seal is extruded black rubber (natural rubber/polyisoprene), Shore A durometer of 60-70. The original seal was predrilled from the manufacturer. Frame spacing can be found on drawing 702-D105-01 – Lines Plan – Hull.

B. Will USACE provide manufactures/ distributors contact info?

The original seal came from SEALS UNLIMITED INC. and can be predrilled at an additional cost.

C. Do the seals have to be one continuous extrusion? Or can it be made up of ~60” long segments butted up end-to-end?

The seals are not required to be on continuous extrusion. Original seal were ordered as a quantity of (2) 14’ long sections and (4) 20’ long sections.

D. Are there any details of the hole pattern so we know where to place holes?

Spacing for the studs is called out on drawing 702-D514-02, Section 7-C – 5/8” Stud x 1 3/4” Long, 6” spacing. The starting point of the pattern will have to be template from the vessel.

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E. How often are the seals replaced?

The existing seals are the original from when the vessel was constructed (2012 delivery).

3. Section TP 1.15

A. The waste oil tank to be removed is at Frame 39 stbd according to DWG 702-D215, vice port side, correct? According to the DWG there is only one (1) waste oil tank. There are wo (2) waste oil tanks at Frame 15 & 16. Which ones are to be removed?

The tanks labeled on the port side as Lube Oil and Gear Oil at frame 39 in the drawing 702-D215- 01 had been repurposed as Waste Oil tanks. These tanks are no longer in use and are to be removed per Item 1.15. More detail of the tanks can be found in drawing 702-D320-01

4. TP 2.07. BT Motor Heaters

A. Provide Power Panels P-201P and P-201S location

Power panels are located in the pump rooms port and starboard near the bulkhead located at Frame 13.Miscellaneous Tank Details.

5. On drawing #702-D645-01, can you tell me the lengths of the piping, what size is the piping for the pressure gauges, what kind are the pressure gauges?

For the purpose of bidding, bidders shall estimate piping lengths from the provided drawings. All piping to be replaced under the specification shall be templated and routed off of the existing piping. The ½” piping for the pressure gauges is 1/2". The pressure gauges shall be liquid-filled analog pressure gauges with a range suitable for the systems working pressure identified in the drawing.

6. Would it possible to extend the contract completion time to greater than 90 days? (estimate 180 days)

The contract completion time cannot be extended.