Combined SynopsisSolicitation for Emerg Wheeler Drydock.pdf

COMBINED SYNOPSIS/SOLICITATION FOR COMMERCIAL ITEMS

General Information

Document Type: Combined Synopsis/Solicitation Solicitation Number: W912P823R0019 Posted Date: January 5, 2023 Original Response Date: 2:00pm, local time, January 11, 2023 Current Response Date: 2:00pm, local time, January 11, 2023 Product or Service Code: J020 - Maint/Repair/Rebuild Of Equipment-

Ship And Marine Equipment Set Aside: 100% Total Small Business NAICS Code: 336611 – Ship Building and Repair

Contracting Office Address

7400 Leake Avenue New Orleans, LA 70118-3651

Description

This is a combined synopsis/solicitation for commercial items prepared in accordance with the format in Federal Acquisition Regulation (FAR) subpart 12.6, “Streamlined Procedures for Evaluation and Solicitation for Commercial Items,” as supplemented with additional information included in this notice. This announcement constitutes the only solicitation;

proposals are being requested, and a written solicitation document will not be issued.

This solicitation is a Request for Proposals (RFP). The solicitation document and incorporated provisions and clauses are those in effect through Federal Acquisition Circular (FAC) 2023-01.

The associated North American Industrial Classification System (NAICS) code for this procurement is 336611, with a small business size standard of 1,250 people.

The U. S. Army Corps of Engineers, New Orleans District, 7400 Leake Avenue, New Orleans, LA 70118-3651, is seeking to procure Emergency Dry-Docking Services for the Dredge Wheeler.

All interested companies shall provide proposals for the following:

Services

SECTION B

SCHEDULE OF PRICES

Item Description Qty. U/I Unit Price

Amount

0001 Berthage, Drydocking, and Services 1 Job 0002 Cover For Stacks 1 Job 0003 AMR Steel and Stern Tube Repair 1 Job 0004 Collection Pipes In NO. 5 Port and Starboard Voids 1 Job 0005 Longitudinal Inserts 1 Job 0006 NO. 2 Port Void Steel Repair (At Suction Pipe Inlet) 1 Job 0007 NO. 3 Portside Upper Void Deck Insert 1 Job 0008 Repairs To Hatch Covers 1 Job 0009 S-17 Fan Plenum Steel Repairs 1 Job 0010 Transverse Bulkhead at Frame 98 1 Job 0011 Heat Lamps for Motors 1 Job 0012 No. 7 Port Hopper Door and Seal Repair 1 Job 0013 (Optional) Ultrasonic Thickness Measurements 5000 Hr.

0014 (Optional) Mild Steel Welding 100 Hr.

0015 (Optional) Outside Machinist 500 Hr.

0016 Dock Trials 1 Job

MANDATORY $

OPTIONAL $

TOTAL $

NOTE 1: All requirements in the schedule under the ITEM and Description/Specs./Work Statement. The citation "0001 DD-1" gives the necessary information for proper bid preparation for Contract Line Item 0001.

EXAMPLE ITEM Spec. DESCRIPTION 0001 DD-1 Berthage, Drydocking and Services

NOTE 2: Payments for items identified as (Optional) will be paid in accordance with the provisions located in SECTION H, at paragraph H-2, "Optional Item." Payment shall be calculated by multiplying the bid Optional (U/P) by the actual Quantity (Qty.) used - (U/P x QTY).

NOTE 3: The use of any particular product or commodity name is only given as a point of reference and any product or commodity that will satisfy solicitation or contract performance requirements may be offered. It is further requested that offeror submit manufacturer's specifications or information sheets delineating those like characteristics.

PERFORMANCE WORK STATEMENT

PART 1 – GENERAL INFORMATION AND REQUIREMENT

1. WORK TO BE DONE. (Information). The Contractor shall furnish all management, supervision, labor, subcontracting services of manufacturer's representatives and all facilities, utilities, equipment, tools, lubricants, fuels, materials and articles (excluding Government furnished property) necessary to fully execute the work items specified herein.

2. VESSEL DATA. (Information). The dredge WHEELER is an all-steel, sea-going hopper dredge.

The dimensions of the hull are:

Length Overall 408 feet -3 inches Length Between Perpendiculars 384 feet -0 inches Breadth Molded 78 feet -0 inches Breadth at Wheelhouse Catwalks 82 feet -0 inches Registered Gross Tonnage 10,614.47 long tons Lightship Displacement 8,618.78 long tons Ballast, Fuel and Water 600 long tons (approx.)

3. CONTRACT DRAWINGS. (Information). The work shall conform to the following contract drawings, all of which form a part of these performance work statement and are available in the contracting office of U.S. Army Corps of Engineer, New Orleans District, 7400 Leake Ave, New Orleans, Louisiana, 70118. All drawings are available in electronic forms (PDF files or other Word Scanning files). There will be no hard copies of drawings (bluelines, zerox, etc.) to be sent out.

AVONDALE SHIPYARD (ASI) DRAWINGS

Dwg. No. Title

01-03-01 General Arrangement, Outboard Profile 01-03-02 General Arrangement, Inboard Profile 01-03-03 General Arrangement, Hold 01-03-04 General Arrangement, 2nd Deck 01-03-05 General Arrangement, Main Deck 01-03-06 General Arrangement, Upper Deck 01-03-07 General Arrangement, Poop, Fo'c'sle and Top of Hopper 01-03-08 General Arrangement, Boat Dk, Bridge Dk and Upper Bridge Dk 01-03-09 General Arrangement, Navigating Dk, Pilothouse and Top of pilothouse 07-00-01 Docking Plan 11-01-01 Shell Expansion – FR 61 – 114 11-01-02 Shell Expansion – AFT FR 61 11-01-03 Shell Expansion – FWD. FR. 114 11-01-08 Hull Insert for Trunnion

11-02-01 Tank Top Plating & Framing Frs. 114-149 11-02-02 Tank Top Plating & Framing Frs. 61-114 11-03-03 Transverse Floors Fr 61-114 11-03-06 Transverse Webs Fr 61-114 11-03-07 Transverse Webs Fr 114-149 11-03-08 Transverse Webs Fr 16-61 11-04-04 Shell Long Fr 34-149, sht. 1 11-04-06 Side Frame – Aft 11-04-08 Hopper Well Center Keelson 11-04-09 Hopper Well Side Keelson 11-04-10 Hopper Well Cross Keelson 11-06-02 Forecastle Deck Plating & Framing 11-06-03 Upper Deck Plating & Framing Fr 114-149 11-06-13 Navigation Bridge Deck Plating & Framing & BHDS Below 11-06-14 Pilot House Deck Plating, Framing, & Bulkheads Below 11-06-16 Upper Deck Plating & Framing Fr 61-114 11-06-17 30’-6” Flat Plating & Framing Fr 61-114 11-07-02 Stacks 11-11-01 Midship Section 29-01-08 Stability Booklet 43-02-01 Stern Tube & Rope Guard Dets

DREDGE TECHNOLOGY CORP. DRAWINGS

Dwg. No. Title

70006-2725-005 General Arrangement of Collection Lines in Hopper 70006-2725-008 Straight Pipes for Collection Lines in Hopper 70006-4013-901 General Arrangement hopper door & Actuating Mechanism 70006-4013-902(G) Hopper Door 70006-4013-903 Hopper Door Hull Connections 70006-4013-904 Assembly and Details Hopper Door Actuating Mechanism 70006-4013-907 Pins and Bushings for Hopper Doors 70006-4013-910 Hopper Door Seals

4. INTERFERENCE AND LOAD SUPPORT (Information).

Remove and reinstall any interference required to accomplish the work specified without additional contract time or cost to the Government. Interference is defined as any part of the vessel, whether installed or portable, that must be removed or disturbed to accomplish the work specified. Approval shall be obtained from Contracting Officer Representative prior to disconnecting piping or other vessel services. Drain lines shall be by-passed or diverted to prevent damage by flooding. All damaged or missing fasteners shall be replaced with fasteners of the same type as original. New gaskets, packing and seals shall be installed on all disturbed connections and proven leak free. Damaged lagging and insulation shall be repaired or replaced. All new work or disturbed existing interferences shall be cleaned and painted in accordance with this specification or applicable line item of ASI drawing 19-01-01. Upon reinstallation, all interferences shall be returned to their original operational condition and position. During disassembly and removal process, the Contractor shall provide support for or secure as necessary the remaining items or sections, i. e. dragarms, dredge piping, davits, walkways, trunnions, service frames, adjustable weirs, steel structures, etc. All costs incurred on these interferences and load support shall be included in the bid price for the respective item of work.

5. GAS-FREEING AND GAS-FREE CERTIFICATE (If Applicable).

Before beginning any hot work or any other work involving the use of an open flame, or any other means of igniting flammables, clean and gas-free the affected spaces as required by Clause 5(e), OSHA Safety and Health Standards (29 CFR 1915), and these specifications. Spaces requiring the gas-freeing shall be "Safe For Men - Safe for Fire (Safe for Hot Work)".

Until all hot work or all other work involving the use of an open flame or any other means of igniting flammables is completed, maintain the affected spaces in a "Safe For Workers - Safe For Fire" condition.

Test affected spaces. Testing and certification shall be accomplished by a certified chemist who is approved for this type of work by the National Fire Protection Association.

Furnish and display at the entrance to the affected spaces and at the primary gangway "Gas-free " or "Safe for Workers - Safe for Fire (Safe for Hot Work)" certificate(s). Furnish to the Contracting Officer Representative one additional copy.

The cost of testing, providing gas-free certificate(s), and physically gas freeing affected spaces shall be included in and proportioned among the bid prices for each item of work requiring cleaning and gas-freeing of a compartment.

PART 2 – SCOPE OF WORK

001 BERTHAGE, DRYDOCKING AND SERVICES.

Drydock facility must be available in January 2023. Earliest drydock availability and longest drydock availability will both be criteria for consideration. Drydocking start and end date should be submitted with bid.

The Contractor shall furnish pilot service for the ship from entrance channel sea buoy closest to Contractor's facility to Contractor's drydock. Thereafter, the Contractor shall provide pilot service to move the ship while the vessel is in his possession, including moving the ship from contractor’s drydock to contractor’s wetberth, if applicable, or vice versa. The contractor shall also provide pilot service and tug services when the ship departs from the contractor’s drydock or wetberth to sea buoy. Refer to Section F for details of delivery and return of the vessel.

Delivery and return will be coordinated with the Contracting Officer Representative.

The contractor shall provide tug service (5000 HP or equivalent) to meet the ship in front of the drydock and safely escort the ship to the drydock and out of the drydock. Thereafter, the contractor shall provide tug service to move the ship while the vessel is in his possession, including moving the ship from contractor’s drydock to contractor’s wetberth, if applicable, or vice versa.

Upon receipt of the vessel, the Contractor shall drydock the vessel immediately at the time mutually agreed to complete all underwater work included in these specifications. Prior to drydocking, the Contractor shall prepare a proposed blocking plan, utilizing the data on ASI Dwg. No. 07-00-01 Docking Plan, and submit the blocking plan to the Contracting Officer Representative for approval. The drydock shall be capable of handling the vessel as follows:

The following are the estimated ship’s draft at time of arrival and the drydock requirement:

The ship will arrive at the contractor drydock at the estimated draft of 22 feet Aft and 18 feet Forward (Arrangement shall be worked out between the government and the contractor prior to drydocking to achieve mutual agreeable draft).

During drydocking and undocking process, there must be a minimum of one (1) foot clearance between the bottom of keel plate and the top of the blocks. Upon drydocking, all blocks shall be checked and wedged up for firm contact with the hull.

The blocks in the drydock (graving or floating docks) must be minimum of six (6) feet high (Note: Blocks are less than 5 feet high shall not be accepted). With the Wheeler landed, the drydock (floating dock only) must have a minimum freeboard of 1 ft - 0 inch.

For safety reason, the drydock (graving or floating) must have a minimum of 15 ft clearance on each side of the ship from the side of the hull to the drydock inside walls.

Drydock length must be longer than the overall length of the ship, which is 408 ft- 3 inch, so that there is no part of the ship, either bow or stern, extends pass the drydock and overhangs the water.

During the drydocking and undocking procedures while the ship is in the contractor possession, the contractor shall provide the services of a pilot, tugboat(s) and all line handlers (aboard and ashore) and all required lines.

DRYDOCK SUBMITTALS -- Unless specified otherwise, at least forty eight (48) hours prior to docking/undocking the vessel, submit to the Contracting Officer Representative the following:

Drydock certification submittal. Prior to award of the Contract, submit to the Contracting Officer certification for the drydock or tentative drydocks to be used to lift the vessel. Ensure that the drydock is certified for docking the vessel of the dimensions and weight given by one of the following:

(1) US Navy, Naval Sea Systems Command

(2) American Bureau of Shipping (ABS)

(3) An independent registered Professional Engineer, who shall cover the inspection requirements of item (1) or (2) above.

The Inspection Certificate shall be within three (3) years if the age of the dock is less than ten

(10) years old and within two (2) years if the age of the dock is over ten (10) years old.

Note: Floating drydocks shall be one integral unit. The Government will not allow the coupling of two rated docks to meet the load requirements of the vessel.

Certification inclusions. Regardless of the type of certification provided, submit to the Government’s Technical Point of Contact the information regarding the docking facility, as applicable:

(1) Drainage and dewatering systems

(2) Mooring systems for floating docks

(3) Fire protection services

(4) Fire alarm locations

(5) Emergency power

(6) Emergency ballast/dewatering pumps

(7) Structural Examination with Load per Foot Rating

Stability and block loading calculations. Submit to the Contracting Officer Representative docking/undocking calculations as follows, including the effect of all dockmaster authorized weight additions/removals or shifts as the result of ship's actions or the contract scope of work.

(1) Blocking

(2) Stability of the vessel afloat

(3) Vessel Stability for keel touch

(4) Draft at Instability

(5) Vessel's GM when water is at top of blocks

(6) ** System Stability when water is at top of blocks

(7) ** System Stability when pontoon deck is awash

(8) ** System Stability when pontoon deck breaks surface

(9) ** Pumping Plan

** Submit for Floating Drydocks Only

Documentation of drydocking significant events. The Contractor shall submit the following information in a separate written report to the Contracting Officer Representative within 48 hours after docking and undocking the vessel.

The precise time that the vessel's first extremity crossed the drydock boundary upon docking.

The precise time that the vessel's last extremity crossed the drydock boundary upon undocking.

The forward and aft draft readings just before docking and immediately after undocking.

Manning document. Provide a list of drydocking operations which describes all stations to be manned, functions to be performed, and the experience and training qualifications of personnel carrying out each function, including casualty and damage control qualifications.

Dockmaster. The dockmaster assigned by the Contractor shall provide a resume of training and experience and meet one of the following criteria:

(1) Has served as a dockmaster at the type of facility for which the individual is qualified during at least 10 dockings or undockings, of which one has been accomplished within the previous 6 months.

(2) Has served under a dockmaster in an apprentice/assistant role during at least 20 dockings or undockings, of which 10 have been performed at the type of facility for which the individual is qualified. One docking or undocking shall have been conducted within the previous 6 months.

(3) Has served under a dockmaster in an apprentice or assistant role during at least 10 dockings or undockings and has served as a dockmaster at the type of facility for which the individual is qualified during at least 5 dockings or undockings, of which one has been accomplished within the previous 6 months.

Immediately after drydocking, provide and install temporary scupper drains and sewage pumpout lines of suitable sizes from the drains and overboard discharge lines, as required to prevent water draining down the ship's sides. Leave temporary drain lines connected throughout drydock. Remove all drain lines after completion of drydock work. The Contractor shall be responsible for disposing of sewage treatment plant effluent.

INSPECTION POINT. Prior to undocking the vessel, a pre-undocking conference shall be held with representatives of the contractor, Government Inspectors, and ship’s crew in attendance.

The plan for undocking shall be reviewed and agreed upon. The hazardous energy/lock out status of the ship’s equipment will be reviewed and updated at this time. A determination shall be made of what systems or equipment require tag out prior to undocking. The Contractor and a representative of the Contracting Officer will perform a joint pre-undocking inspection in accordance with the checklist provided in section J, attachment J-1 to ensure that the vessel is in all respects ready to be re-floated. The checklist (only applicable items) shall be completed by the Contractor, verified by the Government Inspectors and submitted to the Contracting Officer Representative prior to the undocking. Undock the vessel, after all underwater work and the pre-undocking inspection have been completed.

When necessary, while the vessel is in the Contractor’s possession, provide berthing for the vessel. The Contractor shall provide all mooring lines and fenders sufficient in strength, quantity, location and quality to prevent damage to the vessel and the dock. Provide all necessary labor, material, services and equipment as required to safely move the vessel while it is in Contractor's facility. In addition, provide adequate protection in the case of adverse weather conditions (i.e., hurricane). This shall include, but not be limited to, providing tugs on standby (to be sufficient in quantity and size), pilot service, extra mooring lines with chafing gear and anchors aboard and ready. Provide all line handlers aboard and ashore as needed.

Bollards used for the WHEELER shall not be shared with other ships.

Provide services to the dredge in accordance with the requirements of Section H, paragraph H-4 at all times while the vessel is moored or drydocked within the Contractor's facility. The Master or Senior Officer aboard the vessel must be notified whenever firefighting/damage control capabilities are reduced significantly, such as when the CO2 system is taken off line. The Contractor shall also inform the Master or Senior Officer when these services are returned.

002 COVER FOR STACKS.

Furnish labor and materials to construct a temporary cover over the smokestacks to prevent rain from entering the stacks while the vessel is in the drydock. The covers shall be placed on the stack and secured in such a manner as to withstand high winds. There are four (4) main engines and three (3) ship's service generators which will need covers. After all work has been completed and prior to starting the engines, the covers shall be removed. Refer to ASI Dwg. 11- 07-02.

003 AMR STEEL AND STERN TUBE REPAIR.

Reference the following drawings:

* 11-01-02 Shell Expansion Aft Fr 61

* 11-03-08 Transverse Webs Fr 16-61

* 11-04-06 Side Frame - Aft

* 43-02-01 Stern Tube & Rope Guard Dets

Provide gas free in AMR (Auxiliary Machinery Room) for hot work prior to cutting and welding.

All new steel shall be ABS grade A. Prior to welding complete, the contractor shall notify the government and ABS/USCG for “fit up” inspection.

The following areas shall be repaired as specified:

A) PORT STERN TUBE AND SHELL PLATE ABOVE PORT STERN TUBE:

* Shell Plate Above Port Stern Tube:

The contractor shall remove all interferences, insulations, and protect all other equipment with fire cloth prior to cutting and welding. All removed interferences shall be reinstalled after completion of all work. The contractor shall provide and replace with new insulations.

Reference drawing 11-01-02, the contractor shall cut out a shell plate with the following perimeter:

Bottom: where the shell plate meets the port stern tube.

Top: the upper weld seam, approximately 30 inches above the stern tube.

Aft side: 2 inches past aft of frame 21.

Forward side: 2 inches past forward of frame 22.

All dimensions are estimated, the contractor shall outline the cut out plate and contact ABS for approval prior to cutting. After approval, proceed to cut out the existing plate, grind smooth existing edges and replace with new plate of the same thickness. All weld shall be complete both sides. After completion of all welding, perform hose test under the witness of the government and ABS/USCG inspectors. INSPECTION POINT.

All new steel and weld burned areas shall be cleaned and painted with two coats of Interthane 990 (or equivalent) both inside and outside the ship, color to match existing.

* Port Stern Tube between Frame 21 and Frame 22:

This work shall be inside the AMR, port side. Coordinate with the work on shell plate replacement above, notch out existing stiffeners in order to place a double plate, 1 inch thick, government furnished material, on top the existing stern tube inside the ship. The perimeter shall be as follows: top: from the new shell plate install above, sides: between frame 21 and frame 22, bottom: 2 inches below the existing weld seam on the stern tube (the contractor shall make a groove on the new double plate to ensure the existing weld seam being enclosed under the new plate). Proceed to weld the new double plate on all four sides. Coordinate with the ship crew to run cooling water through the stern tube while performing welding.

After completion of welding all four sides of the double plate, provide and weld a 1 inch plate stiffener, 4 inches high, on top of the double plate and between frame 21 and frame 22. Also, weld all existing stiffeners to the new double plate.

After completion of all welding, contact the government and ABS/USCG inspectors for inspection. INSPECTION POINT.

All new steel and weld burned areas shall be cleaned and painted with two coats of Interthane 990 (or equivalent) inside the ship, color to match existing.

B) PORT & STARBOARD SHELL PLATE AT BILGE, BETWEEN FRAME 24 AND FRAME 26:

The contractor shall remove all interferences, insulations, and protect all other equipment with fire cloth prior to cutting and welding. All removed interferences shall be reinstalled after completion of all work. The contractor shall provide and replace with new insulations.

Reference drawing 11-01-02, the contractor shall outline the cut out on the shell plate, both port and starboard sides, with the following perimeters:

Bottom: at the lower weld seam, about the tank top level.

Top: at the upper weld seam, about the walkway level.

Aft side: 4 inches past aft of frame 24.

Forward side: 4 inches past forward of frame 26.

All dimensions are estimated, the contractor shall outline the cut out plate and contact ABS for approval prior to cutting. After approval, proceed to cut out the shell plate and grind smooth existing edges. The contractor may choose to cut out the side frames (25, 26) with the plate or leave it in place. Provide and replace with new shell plates (along with side frames, if applicable) of the same thickness. All weld shall be complete both sides. After completion of all welding, perform hose test under the witness of the government and ABS/USCG inspectors.

INSPECTION POINT.

All new steel and weld burned areas shall be cleaned and painted with two coats of Interthane 990 (or equivalent) both inside and outside the ship, color to match existing.

004 COLLECTION PIPES IN NO. 5 PORT AND STARBOARD VOIDS.

Reference DTC drawings 70006-2725-005, 2725-008, and sketch J-10. Provide labor, material, and equipment to remove interferences and adjacent pipes/castings in order to remove and replace the following pipes:

No. 5 starboard void: pipe no. 114.

No. 5 port void: pipe no. 106 (Note that pipe# 106 extends to the engine room space)

After unbolting pipe 106 from the bulkhead, the contractor shall provide gas free in no. 5 voids port and starboard and the engine room space, until the completion of this work. The contractor shall cover all nearby hydraulic pipes, electrical cables, and others with fire cloth prior to cutting/welding. Additional ventilation shall be provided to clear out smoke resulting from cutting/welding. Cut out a square shape (with round corners) hull plate on the port and starboard sides between frames #61 and #77 big enough to remove and install all piping and flanges. The bottom side of the cut plate shall be field determined, suggested at approximately at 116 inches above base line (see referenced drawings 11-01-01, 11-03-06, and 11-04-04).

Note: Coordinate with the Government and USCG/ABS Inspectors to outline the cut lines before cutting. After approving by the Government and USCG/ABS, proceed to cut out the hull plate as outline. Care shall be taken not to damage the electrical wiring attached to the angle inside the void. After cutting, bevel all edges of the cut lines in preparation for welding new plate (which shall have the same thickness and type to the cut out hole, ABS Grade A steel, see drawing 11- 01-01) both inside and outside.

The contractor shall then remove pipes# 106 and 114 and shall remove all interferences prior to doing so (hydraulic and flushing lines, and electrical). The contractor shall be responsible of reinstalling these interferences to their prior location. Salvage all existing flanges, clean all flanges thoroughly of all rust, scale, lightly machine flanges faces or inside diameter to fit over new pipe stock if needed, bevel, to be reused and welded into new government furnished pipe stock. The bulkhead flanges shall be welded to the new pipe stock in place at no. 5 voids. The contractor shall also provide and weld new support plates. Care shall be taken to ensure that all bolt holes align with the mating pipes or castings before welding the flanges completely.

The government shall provide pipe stock of different lengths, the contractor may opt to make jigs to fabricate new pipes or field measure to cut to fit. Notes: Prior to cut the government furnished pipe stock, mark all new pipes length with at least 4 inches extra on the pipe stock to ensure that all lengths are accounted for. INSPECTION POINT. Perform NDT to new pipe sections prior to installation on the ship, coordinate with the Government inspector. Prior to welding loose flanges completely, ensure that all bolt holes match those of mating pipes or castings. All weld on flange to pipe shall be strictly in accordance with drawing 70006-2725-008.

INSPECTION POINT. Prior to welding flanges completely to pipe stock, contact the Government for inspection. The contractor shall furnish all new fasteners and gaskets. The contractor shall provide all new bulkhead rubber gasket, thickness per drawing 70006-2725-005, cut to fit flange bolt hole pattern (Note: All gaskets must be one continuous piece) INSPECTION POINT.

After completing the installation of the new pipes, clean the exterior surface of the new pipes, then apply the following coats: one (1) full coat of Intertuf 262, color: gray and one (1) full coat of Interthane 990, color: white.

After completion of all work, reinstall all removed interferences and other removed pipes or castings. If hydraulic lines were removed, the contractor shall provide all new fasteners, gaskets and o-rings as well. Weld a new hull plate of the same thickness and type to the cut out hole on both inside and outside. INSPECTION POINT. After welding is complete, contact the Government Inspector and USCG/ABS to witness the vacuum test on the weld seams.

After concurrence form the Government Inspector, the contractor shall proceed to paint the hull plate. The exterior of the new plate, including all weld burned areas, shall be cleaned and painted the following coats: One (1) coat of Intertuf 262, red, 6 mils, one (1) coat of Interclene

245, black, 4 mils and One (1) coat of Interclene 245, red, 4 mils. The interior of the new plate shall be painted with two coats of primers (Intertuf 262, gray, 6 mils each coat) and one top coat of Interthane 990, light green, 2 mils.

005 LONGITUDINAL INSERTS.

Refer to Section J, Attachment J-9 for details and referenced Avondale drawings 11-04-09, 11- 11-01, and 11-02-02.

Hopper Bay Plating, Longitudinal, Plate A, outboard plate, Cor-Ten Steel, between frames 98 and 105, starboard side. The government will provide two 10’x 8’x 3/4” Corten steel sheets for the contractor to use. Replace entire section including bend radius (knuckle), approximate dimensions are 5 feet high, approximately 17 feet long, both ends of this plate shall be cut at least 24 inches pass the weld seam intersection with the athwartship plate (Notes: Since this longitudinal plate has a weld “right-of-way,” the contractor shall cut a portion of the athwartship plate A in order to have access hole to weld. The contractor should cut around the reinforced plate at the sluice valve suction inlet. Reinstall/reweld any removed athwartship plate(s) and also any removed stiffeners inside the void).

006 NO 2 PORT VOID STEEL REPAIR (AT SUCTION PIPE INLET).

Reference the following drawings:

* 11-01-03 Shell Expansion Fwd Fr 114

* 11-01-08 Hull Insert for Trunnion

* 11-02-01 Tank Top Plating & Framing Fr 114-149

* 11-03-07 Transverse Webs Frames 114-149

* 11-06-03 Upper Deck Plating & Framing Fr 114-149

Provide gas free in no. 2 port void for hot work prior to cutting and welding. All new steel shall be ABS grade A.

Prior to welding complete, the contractor shall notify the government and ABS/USCG for “fit up” inspection.

Cut out the following existing plates as specify below and replace with new steel:

a) Cut out a plate along the side shell, longitudinally, approximately 5 feet long, 18 inches high from the tank top deck plate, from the aft weld seam at the hull plate to the forward weld seam at the 1 inch plate, grind smooth existing edges and replace with new steel. New plate to be 11/16 inch, field to verify thickness.

b) Cut out the aft and forward plates of the box structure around the suction pipe inlet, approximately 2.5 ft long each, 18 inches high from the tank top deck plate, grind smooth existing edges and replace with new steel. New plate to be 3/4 inch, field to verify thickness.

c) Cut out the longitudinal plate of the box structure around the suction pipe inlet, approximately 7 ft long, 18 inches high from the tank top deck plate, grind smooth existing edges and replace with new steel. New plate shall be cut to align with existing cut out holes.

New plate shall be 1 inch thick, field to verify thickness.

After completion of final weld, contact the government and ABS/USCG for final inspection.

INSPECTION POINT.

After completion of all work above, provide two coats of Interthane 990 (or equivalent), color:

to match existing, on all new steel and all areas of weld burn.

007 NO. 3 PORTSIDE UPPER VOID DECK INSERT.

Refer to referenced Avondale drawings 11-06-17, 11-03-06 and 11-11-01.

Provide labor, materials, and equipment to replace a section of the No. 3 portside upper void deck plating at 30’ 6” ABL. The steel replaced will be approximately 9’ long from frames 105 to 108 and 5’ wide from the inboard sloped plating at 28’ OCL to the coaming inboard of the ladder well 33’6” OCL. The insert should extend at least 2” past the webs forward and aft of the insert. This insert is above the ships fuel oil tank and will require the tank to be opened, pumped of residual fuel, gas-freed and cleaned. The replaced steel should be 7/16” thickness, ABS grade A.

INSPECTION POINT. Contact the government, USCG and ABS for fit-up and final weld inspections. Once welding is complete, pressure test the tank to 2 psi in the presence of USCG, ABS and government inspector.

After approval, proceed to prepare and paint new steel, only on the exterior of the fuel oil tank, and all affected areas with one coat of Intertuf 262 and one coat of Interthane 990 color to match existing.

INSPECTION POINT. Contact the government to do a final cleanliness check inside the fuel oil tank prior to close.

008 REPAIRS TO HATCH COVERS.

Reference Avondale drawings: 01-03-06, 01-03-07, 11-06-16, 11-06-02

Provide all labor, materials, and equipment to perform the following work:

No. 5 Port Void Space Hatch, Upper Deck, Fr. 71, 35’ OCL Recommended repairs:

• Remove gasket and descale hatch lid to include area on the bottom side of the hatch so that the gasket will sit flush and smooth in its recessed seat.

• Renew the Port, FWD dog bolt pad that is welded to the top of the hatch.

• Reinstall gasket and perform a hose test once repairs are done.

Portside Boatswains Stores Hatch, Foscle Deck, Fr. 138, 23’ OCL Recommended Repairs:

• Remove gasket and descale area underneath hatch lid so that the gasket will sit flush and smooth in its recessed seat.

• Renew area of hatch that is wasted on the forward side, approximately 18”x18”.

• Renew 4 wasted dog bolt pad that are welded to the top of the hatch.

• Reinstall gasket and perform a hose test once repairs are done.

Pump Motor Room Hatch, Foscle Deck, Fr. 145, CL Recommended Repairs:

• Remove all gaskets on all sides to include the centerline gasket and ‘U’ gaskets, located on aft and forward end. Descale area underneath hatch lid, area where center gasket sits, and area where ‘U’ gaskets sit so that the gasket will sit flush and smooth in its recessed seat.

• Adjust dogs on the centerline of hatch to ensure that they are closing properly.

• Replace all gaskets with similar type gaskets and perform hose test.

Hose test should be completed and passed by U.S. Coast Guard or ABS Inspector before paining.

Paint all new steel, descaled areas, and weld burned areas with Intertuf 262, and Interthane 990 to match the color of the replaced.

009 S-17 FAN PLENUM STEEL REPAIRS.

Refer to referenced Avondale drawing: 11-06-13, 11-06-14

Provide labor, equipment, and material to replace a section of the inboard longitudinal bulkhead and deck plating located in the starboard side S17 fan room between frames 45 and 49 on the navigation bridge deck level 85’3 ¾” ABL. Insulation and interferences have been removed in most areas; however the contractor will be required to reinstall all removed panels and replace insulation in those areas. The insert on the bulkhead at 10’ OCL should be at least 18” tall by approximately 10’ wide. Since the bulkhead has the right of way, the insert should extend at least 2” below the navigation bridge deck level and two inches aft of the transverse bulkhead at frame 45. The deck plating should also be inserted from the inboard bulkhead, at least 18” outboard, approximately 10’ wide.

The S-17 fan dampener will need to be removed, and the fan itself will need to be removed from its mount and pulled back in order gain access to the space behind the bulkhead.

Contractor will need to ensure that all insulation is removed from the vent shaft located on the opposite side of the bulkhead before cutting.

All replacement plating inserts shall be one piece continuous, 9/32-inch-thick steel, material specification: ABS Grade A mild steel, U.S. All final fits and welds shall be inspected by Government, ABS, and USCG inspectors. INSPECTION POINT. After completion of welding, perform MT testing on all new welds and submit results to the Government, ABS, and USCG.

Clean, prime, and paint new plates and all affected areas. apply one (1) full coat of Intertuf 262, color: gray and one (1) full coat of Interthane 990, color: to match existing.

010 TRANSVERSE BULKHEAD AT FRAME 98.

Refer to referenced Avondale drawings 11-04-08, 11-03-03, 11-04-10 and 11-11-01.

Provide labor, materials, and equipment to replace a section of the transverse bulkhead at frame 98 located in the center keelson area between No. 4 and No. 3 voids, portside. The inserted steel shall be approximately 7 feet wide by 2 feet tall and will span from the centerwell bulkhead at 6’ OCL to the weir pipe in the cross-keelson space approximately 12.5’ OCL. Since the bulkhead has the right of way through the tank top, the inserted steel shall extend at least 6” below the deck. The contractor will have to cut access holes in the tank top and through the cross-keelson longitudinal frame for the insert to pass through. Steel shall be 15/32” thick, ABS Grade A. All work affected areas (lower voids, etc.) must be gas free prior to cutting and welding.

INSPECTION POINT. Contact the government, USCG and ABS for fit-up and final weld inspections. Perform MT testing on all new welds and submit results to the Government, ABS, and USCG.

After final approval, proceed to prepare and paint new steel and all affected areas with one coat of Intertuf 262 and one coat of Interthane 990 color to match existing.

011 HEAT LAMPS FOR MOTORS.

Furnish a power source, cables, wires, and all equipment necessary to keep all motors, control equipment and generators heated for the duration of the contract. The voltages shall not exceed 250 V and all lines shall meet National Electric Code requirements for overload and ground fault protection. Other characteristics shall be at the option of the Contractor. Method of heating must be properly secured to the motors and/or generators. If the Government Inspector suspects a fire hazard, the Contractor shall resecure or change the method of heating immediately at his expense. The Contractor must have heaters (preferably heat lamp devices) installed and working within 48 hours of acceptance of the vessel. Heaters will be on all motors 10 horsepower or greater that are within the ship, and on all motors in the pump room, No. 2

Voids and outside on the ship's deck (see attachment J-11, section J for list of all motors that need heaters). Dredge motors and generators, motor/generator sets, and dragarm winch motors will use their internal heaters except when work is being performed on the equipment or the equipment is tagged out. Appropriate heaters will be used to heat this equipment.

Heaters are required on the ship's service generators and the crane generator. An approved flame- retardant material such as welding cloth shall cover the motors and heat lamps whenever painting, blasting or chipping is going on in their vicinity. Provide the labor to check each heat lamp daily.

012 NO. 7 PORT HOPPER DOOR AND SEAL REPAIR.

Reference the following drawings:

* 70006-4013-901 General Arrangement hopper door & Actuating Mechanism

* 70006-4013-902(G) Hopper Door

* 70006-4013-903 Hopper Door Hull Connections

* 70006-4013-904 Assembly and Details Hopper Door Actuating Mechanism

* 70006-4013-907 Pins and Bushings for Hopper Doors

* 70006-4013-910 Hopper Door Seals

Currently, the double doors in no. 7 port are closed and secured with additional wires (connected from pad eye on the doors to structures on hopper deck) and sandbags around the perimeter; an estimated quantity of 70 small sandbags are to be removed and discarded.

Coordinate with the crew to disconnect the safety wires form the top on hopper deck, open both doors and allow sandbags to fall to drydock floor. The contractor shall remove and dispose all sandbags, any sand that fall to the drydock, and safety wires in order to perform the work below:

Remove the double doors in no 7-port bay by burning off the hinge pin locking plates (part #215) as shown on attachment J-12, the locking plate (part #418) on the hopper door pad eye pin, as shown on attachment J-13, the round bar shown in section J-14 and removing the hinge pins and pad eye pin.

A) BEARING POT BUSHINGS REPLACEMENT:

With bearing pots in place, remove worn bearing pot bushing (item 207, drawings 70006-4013- 902 & 907) and replace with a new Government furnished bushing, part no. 4013-907-207, in accordance with attachment J-3. The key required for the bushing installation will be contractor furnished. A quantity of four (4) bearing pot bushings will be replaced at no 7-port hopper bay.

B) HOPPER PERIPHERAL (SIDE) SEALS REPLACEMENT:

Remove all tack welded nuts, all existing flat bars (see notes for contractor furnished parts below), all existing seal assemblies (peripheral seal), and any damaged studs. Door periphery seals have sealant between corners and hull plating; seals may need to be pried away from hull.

Remove all old sealant from hull. Clean and paint the hopper door platings in way of the seals as follows: (Note: All studs shall be covered with masking tapes to prevent paint from contaminating their threads, after completion of painting in required areas, removing all masking tapes).

* Painting (International paint or Equivalent):

Intertuf 262, Red 6 mils (full coat entire area) Interclene 245, Red 4 mils (FULL coat entire area)

The replacement gasket assemblies for periphery seals are not drilled and do not have hole bushings. The contractor shall drill holes for these seals.

The government shall furnish the following parts for each hopper door sealing assembly:

peripheral rubber seals (without bolt holes), qty: 4 Sealant for seals, BF Goodrich, Elastolock 2995.

The contractor shall furnish the following parts:

steel flat bars with bolt holes, qty: 4 (Notes: 2 longitudinal flat bars and 2 athwartship flat bars.

The contractor may use existing flat bars as a template to fabricate new flat bars and drill bolt holes.

Stainless steel nuts, 5/8 inch, qty: 60, (Disregard Nyloc reference on item 106, drawing 70006-4013-903).

Stainless steel bushings for peripheral seals, qty: 60, (item 102, drawing 70006-4013-910).

The contractor shall use these contractor-furnished flat bars as template to drill bolt holes on all seals.

Important Notes:

The contractor shall field measure and cut flat bars (only if necessary) to fit over the rubber seals.

All peripheral rubber seals shall be field measured and cut miter edge at the ends.

Do not use one flat bar as one standard template to drill bolt holes on all rubber seals.

Peripheral Seal Installation:

Using the contractor-furnished flat bars as a template to drill holes on the government furnished peripheral seals. The contractor must ensure that all dimensions shall be in accordance with those in Drawings 70006-4013-901, 902, 903, and 910. INSPECTION POINT: Prior to drilling holes on the rubber seals, contact the government inspector to verify dimensions.

Proceed to install the peripheral seals, cement each corner at miter joints and back of seal 18 inches from each corner using government furnished BF Goodrich, Elastolock 2995 sealant. After joining the ends together, apply pressure using flat plates and a C-clamp. Allow 6 hours for sealant to cure before removing clamp. Allow 72 hours cure time before placing the seals in service. (Note: The back edge of all peripheral seals shall be rested against the edge of the existing welded flat bars. If the edge of any peripheral seals are on top of the welded flat bars, the contractor must correct the deficiencies).

With new seals in place, install flat bars using all new contractor furnished nuts of 316 stainless steel material (5/8-inch UNC, quantity: 60). Disregard Nylock reference on the drawing. Tack weld all nuts to the fastening flat bars after tightening the nuts. DO NOT

USE WASHERS. DO NOT TACK WELD THE NUTS TO THE STUDS.

C) HOPPER DOORS:

(Note: Any pad eye(s) welded to the hopper doors for rigging must be removed completely after completion of reinstallation of all hopper doors).

After removing the double doors and place on the drydock floor, remove drain plugs and drain any water inside, if applicable.

3/4 inch Hinge Plate Bushings

Cut out the existing pipe bushings on the (3/4 inch) thick hinge plates, quantity: 2 each on each door (notes: see referenced DTC drawing 70006-4013-902, Rev G for plate dimension and information; the pipe bushings are add-on and they are not shown on the referenced drawing).

Grind clean the cutting edges in preparation for welding new bushings. Provide new pipe bushings (suggested material ASTM A519 or 1018 seamless tubing, minimum wall thickness 1/4 inch or larger, ex: 3-3/4 inch O.D. tube, 0.250 inch wall, 3-1/4 inch I.D. Refer to DTC drawing 70006-4013-907 for allowable clearance between the shaft, part no. 204, and the bushing, part

no. 207). Tack weld the bushing. INSPECTION POINT. Contact the government inspector to verify that new bushings are located within dimensions as specified in the referenced drawing and concentrically aligned with the other three (3) bushings by inserting a template steel bar (3.15 inches diameter, 10 ft long) through all four hinge plate bushings. If approved by the government inspector, proceed to weld the bushing to the existing hopper door’s (3/4 inch) thick hinge plate. All weld shall be fillet, 3/8 inch, all around and both sides.

Clean and paint all weld burned areas with (1) coat of Intertuf 262 (red) and (1) coat of Interclene 245 (red) or equivalent.

1-3/4 inch Hinge Plate Bushings

Cut out the existing pipe bushings on the (1-3/4 inch) thick hinge plates, quantity: 2 each on each door (notes: see referenced DTC drawing 70006-4013-902 for plate dimension and information; the pipe bushings are add-on and they are not shown on the referenced drawing).

Grind clean the cutting edges in preparation for welding new bushings. Provide new pipe bushings (suggested material ASTM A519 or 1018 seamless tubing, minimum wall thickness 1/4 inch or larger, ex: 3-3/4 inch O.D. tube, 0.250 inch wall, 3-1/4 inch I.D. Refer to DTC drawing 70006-4013-907 for allowable clearance between the shaft, part no. 204, and the bushing, part

no. 207). Tack weld the bushing. INSPECTION POINT. Contact the government inspector to verify that new bushings are located within dimensions as specified in the referenced drawing and concentrically aligned with the other three (3) bushings by inserting a template steel bar (3.15 inches diameter, 10 ft long) through all four hinge plate bushings. If approved by the government inspector, proceed to weld the bushing to the existing hopper door’s (1-3/4 inch) thick hinge plate. All weld shall be fillet, 3/8 inch, all around and both sides.

Clean and paint all weld burned areas with (1) coat of Intertuf 262 (red) and (1) coat of Interclene 245 (red) or equivalent.

The government shall provide the following parts:

Part no. 402, drawing 7006-4013-904, pin for hopper door pad eye, qty: 2 each.

Part no. 204, drawing 70006-4013-902, hinge pin for hopper door, qty: 4 each.

If no other work is required on the doors, seal drain plugs on hopper doors and proceed to reinstall the doors on the ship (Note: coordinate this work with all work items related to the hopper doors plating and seals). After rigging each individual door into its location, hanging by the two hinge pins, the contractor shall ensure that the two hinge pins are solidly inserted into their respective bearing pots/bushings, and the door must be centered between the two hinge pins under the witness of government inspector. INSPECTION POINT. (Note: Failure to center the door between two hinge pins may cause the door to shift forward or aft, and consequently may rub against the steel plate D when the door is closed/opened). After the door is centered, the contractor shall position the keeper plate (part no 4013-902-215) with its edge 1/16 inch from the hinge pin’s end, then proceed to weld the keeper plates per paragraph below.

The contractor shall provide and weld all new locking plates (part no. 4013-904-418) at both ends of all door pad eye pins and also new locking plates (part no. 4013-902-215) on all hinge pins (Notes: the plate part no. 203 will not be welded to the hinge pins. All locking plates must be fillet weld all around completely).

The contractor shall provide and weld all new round bars to each of the outer hopper doors’ hinge plates as shown in J-17. Round bar is to be 1/2” diameter, made of A-36 Steel. Size of round bar and weld location to be field determined. Each round bar should be installed such that it doesn’t interfere with the hopper door sealing and operation at any time. After all work is complete, add touch up paint Intertuf 262-Red in bare metal areas.

INSPECTION POINT. After all work in this line item is completed, the contractor shall provide the following tests under the witness of the government inspector:

Inspection of weld around all locking plates and round bars: The Government Inspectors shall inspect the welds to ensure that they are welded completely all around on all locking plates and round bars.

Hammer Test for all door hinge pins’ locking plates: Provide a person with 16 ft extension ladder and a 5-lbs sledge hammer, strike three times on each hinge pin locking plate under the witness of the Government Inspector to ensure its weld seam integrity. The contractor shall correct all deficiencies, if applicable.

Chalk Test: After all work in this line item are completed, chalk all periphery and center seals, close and open the doors three times and check for contact with mating surface.

013 (OPTIONAL) ULTRASONIC THICKNESS MEASUREMENTS.

Furnish required instruments and services of a qualified ultrasonic technician to gage thickness of metal deck plating, hopper plating, beams, piping, and bulkheads, where directed by the Government Inspector. A past history of readings for certain areas will be provided as a guide.

All piece numbers, reading identification numbers, and approximate reading locations shall be duplicated from report where applicable.

INSPECTION POINT. Furnish to the Government Inspector at the end of each day one copy of the readings taken that day.