Attachment_2_-_Statement_of_Work.pdf

FOLLOW-ON CONTRACT

NATIONAL HISTORIC LANDMARK STEAM TUG HERCULES

2024 DRYDOCKING AVAILABILITY

STATEMENT OF WORK

TABLE OF CONTENTS

SECTION 1: GENERAL INFORMATION AND REQUIREMENTS

SECTION 2: BASE BID ITEMS

PART 1: CRADLING AND TEMPORARY SERVICES

ITEM 1.01 CRADLING AND BLOCKING

ITEM 1.02 TEMPORARY SERVICES

PART 2: UNDERWATER HULL SYSTEMS MAINTENANCE

ITEM 2.01 RUDDER, TAILSHAFT, STERNTUBE, AND PROPELLER REPAIRS,

COATING, AND REINSTALLATION

PART 3: STRUCTURAL REPAIRS AND INSTALLATION

ITEM 3.01 SHELL PLATE INSERT REPAIRS

ITEM 3.02 FRAME AND FLOOR REPAIRS

ITEM 3.04 LOWER BILGE STRINGER REPAIRS

PART 4: NON-STRUCTURAL REPAIRS, WELDMENTS AND COATINGS………….16

ITEM 4.01 PREPARATION AND PAINTING MAIN DECK AND HOUSE

APPURTENANCES

ITEM 4.02 TOPSIDE REPAIRS

SECTION 3: OPTIONAL ITEMS

PART 5: OPTIONAL VESSEL SERVICES

ITEM 5.01.A VESSEL TRANSPORTATION AND DELIVERY

ITEM 5.01.B HERCULES STEAMING SUPORT TO MINSY

ITEM 5.02.A - HAUL OUT AND BLOCKING – ADDITIONAL LAYDAYS

ITEM 5.02.B - WET BERTHING

ITEM 5.03.A - ADDITIONAL TEMPORARY SERVICES

PART 6: UNDERWATER HULL SYSTEMS MAINTENANCE

ITEM 6.01-07 SEA VALVE REPLACEMENT

PART 7: NON-STRUCTURAL REPAIRS, WELDMENTS AND COATINGS

ITEM 7.01 PREPARE AND COAT HEAVY FUEL OIL TANK

ITEM 7.02 GUARD RAILS

ITEM 7.03 ANCHOR WINDLASS PREPARATION AND PAINTING

ITEM 7.04 MAIN BOILER LAGGING

ITEM 7.05 EPOXY VOID FILLING

PART 8: STRUCTURAL SHELL PLATE RENEWAL

ITEM 8.01 SHELL PLATE RENEWAL (PLATE P-K-4)

ITEM 8.02 SHELL PLATE RENEWAL (PLATE P-A-3)

ITEM 8.03 SHELL PLATE RENEWAL (PLATE P-A-4)

ITEM 8.04 SHELL PLATE RENEWAL (PLATE P-B-4)

ITEM 8.05 SHELL PLATE RENEWAL (PLATE P-B-5)

ITEM 8.06 SHELL PLATE RENEWAL (PLATE S-K-4)

ITEM 8.07 SHELL PLATE RENEWAL (PLATE S-A-2)

ITEM 8.08 SHELL PLATE RENEWAL (PLATE S-A-3)

ITEM 8.09 SHELL PLATE RENEWAL (PLATE S-A-4)

ITEM 8.10 SHELL PLATE RENEWAL (PLATE S-B-4)

ITEM 8.11 SHELL PLATE RENEWAL (PLATE S-C-4)

PART 9: STRUCTURAL COMPONENT REPAIRS AND INSTALLATION

ITEM 9.01 ANGLE IRON

ITEM 9.02 PLATE STEEL

ITEM 9.03 C-CHANNEL

ITEM 9.04 CLAD WELDING

ITEM 9.05 RIVET REPAIRS

ATTACHMENTS

ATTACHMENT 3 – Steam Tug Hercules Docking Plan, 1997 and Blocking Plan, 2009

ATTACHMENT 4 – Structural Rehabilitation Recommendations – Initial Survey Report, February 2021

ATTACHMENT 5 – Hercules NPS Drawings

ATTACHMENT 6 – Hercules Asbestos and Lead Sample Plan & Results, 2020

ATTACHMENT 7 - USCG Navigation and Inspection Circular 7-01 Procedures for Hull

Inspection and Repair on Vessels built of Riveted Construction dated 9 October 2001.

ATTACHMENT 8 – DDE Drawings 20030-20_Rev.A and 20030-30-Rev.A

ATTACHMENT 9 – Hercules Cathodic Protections System Drawings.

ATTACHMENT 10 – Hercules Stern Tube Bushing and Tail Shaft Drawings.

ATTACHMENT 11 - USCG Marine Safety and Security Information Bulletin (MSIB) 13-

01, Dead Ship Tow Guidelines

ATTACHMENT 12 – TOMAC NDT Services, Inc. Report, 2001

140P8622C0006 – Follow-On Contract - STATEMENT OF WORK

This contract is a follow-on to the existing FY22 NHL Hercules Haul Out project (contract #140P8622C0006) currently underway at Bay Ship and Yacht in Alameda, CA.

The work contained herein is an expansion of the original requirements to reflect the need for growth on certain CLINs due to unforeseen conditions within the vessel. This contract is intended to run concurrent to and parallel with the existing requirements, timelines, and project expectations. While this is a separate contract, it cannot exist, nor could it be successful without integrating with the existing contract (#140P8622C0006).

The work described below provides for the ongoing haul out and repair of the NHL Hercules to include (but not limited to), haul out and blocking, temporary services, structural steel repairs, preparations and coatings, and replacement of vessel components. Optional bid items provide for additional steel repairs based on specific structural steel components at pre-negotiated metrics, generally steel per pound. Option items will also provide a mechanism to address growth of other specified work including coatings preparation and application, and changes to materials specified based on the as-found conditions. Other option items are related to the NPS’ goal of steaming the vessel from dry-dock to a new berth at Mare Island Naval Shipyard in lieu of the Hyde Street Pier berth.

Contract Line Item Number (CLIN) identification is unique to this contract but will reference the original specification – CLINs will be different between the two Statements of Work for the same type of work. The government estimates the base items to require a one-hundred-day (100) Period of Performance. The Contractor shall include their estimated timeframe in their bid proposal.

SECTION 1: GENERAL INFORMATION AND REQUIREMENTS

This follow-on Scope of Work shall follow and adhere to the Section 1 – General Requirements, Parts 1-8 (as issued and amended) of Contract #140P8622C0006 and as further defined below. Submittals approved via contract #140P8622C0006 shall apply to this scope as well.

Where information from Contract 140P8622C0006 is incorporated but changed, those changes are shown in red with deletions struck through. Prior modification language or additions are shown in grey. All other parts of the Specification remain unchanged.

END SECTION 1

SECTION 2: BASE BID ITEMS

The Contractor shall furnish all labor, materials, management, equipment, and details that may be necessary to accomplish the stated intent of this SoW. Material list is intended to provide rough order of magnitude quantities for project materials to inform lead time and project duration estimating. The Contractor shall be responsible for determining exact dimensions and quantities.

PART 1: CRADLING AND TEMPORARY SERVICES

ITEM 1.01 CRADLING AND BLOCKING

1. SCOPE: The intent of this item is to drydock the NHL Tugboat Hercules to allow underwater body surveying, repairs and coating below the ship's waterline per the SOW. It is expected that the dock blocks, wedges and bracing for the Hercules will be required to be relocated at least once during the drydocking to facilitate repairs and coating of areas shielded by these items. This CLIN should include any shipyard “layday” charges while the vessel is blocked ashore. This supplemental contract line item is intended to encompass the anticipated Period of Performance of approximately 100 days for basic scope items.

A. Contractor shall provide with their bid an estimated total Period of Performance required to meet the basic scope requirements of this supplemental contract and price this item accordingly.

2. REFERENCES:

A. Attachment 3:

1) Steam Tug Hercules Docking Plan, 1997.

2) Hercules Dock Plan, Position 1 and Position 2, 2009

3. REQUIREMENTS: The Contractor shall provide the labor, material and equipment to block and cradle the vessel for the duration of the work.

A. The Contractor shall use care in any adjustment to, or shifting of the vessel’s cradle due to her condition, age, and historical value.

B. Locate and place keel and movable bilge blocks in accordance with the Hercules approved docking plan (Attachment 3).

1) The keel blocks shall be topped with soft caps made from soft compressible wood, such as pine. The dimensions of the soft caps shall be a minimum of 2" x 24" x 24" to permit the vessel's docking load to be evenly carried by all the blocks. The bilge blocks shall be 8" round caps with wedges as required or as proposed by the contractor and approved by the COR (Attachment 3).

2) The docking blocks shall be placed avoiding the covering of through-hull penetrations, depth finder and cathodic protection anodes.

3) The contractor shall insure the correct height and alignment of the keel and bilge blocks are achieved and maintained to evenly distribute and support the vessel during the period of performance.

C. The vessel shall be blocked and supported without strain or injury to the vessel.

D. During the fleeting or re-blocking of the vessel, the sea chests and fathometer transducer, shall not be covered by the blocking plan.

E. The Contractor shall fleet the vessel or shift the blocking, (dock blocks, wedges and bracing), at least once during the drydocking period to facilitate cleaning, repairs and coating of areas shielded by the docking blocks.

4. TESTING/INSPECTION/REPORT:

A. The Contractor shall revise the docking plan noting any inconsistencies in the plan and identify the final location of the ship's position on the docking blocks. One (1) reproducible and four (4) copies of the revised plan shall be delivered to the Contracting Officer prior to any changes being made.

B. Inspect for excessive loading of the bilge blocks and shores during the project and settling of the vessel. Bilge blocks must be movable.

Reposition bilge blocks and shores if required.

END ITEM 1.01

ITEM 1.02 TEMPORARY SERVICES

1. SCOPE: The Contractor shall furnish all labor, equipment and materials to provide temporary services, security and fire protection while the NHL Tugboat Hercules is located at the Contractor's facility. This supplemental contract line item is intended to encompass the anticipated Period of Performance of 100 days for basic scope items.

A. Contractor shall provide with their bid an estimated total Period of

Performance required to meet the basic scope requirements of this supplemental contract and price this item accordingly.

2. REFERENCES: NONE

3. REQUIREMENTS:

A. The Contractor shall provide the equipment and make all temporary service connections immediately after the vessel has arrived and is secured at their facility. Temporary services are to be disconnected only when the vessel is being shifted from her moorage, drydock or refloated and shall be restored to normal use within one hour after completion of the evolution.

B. The Contractor shall develop procedures for and maintain a continuous security watch. He shall also provide the ready response organization and equipment necessary to protect the ship from fire damage. The security and response procedure shall be submitted to the COR for approval.

C. The Contractor shall provide, erect, and maintain all necessary barricades, roped-off areas, and warning signs. The Contractor shall take all neces-sary precautions to protect the workmen and others that have legitimate business aboard the ship during the course of the work. This shall include lighting of these areas at night.

D. All dirty and soiled surfaces shall be properly cleaned and, if necessary, re-coat as original.

E. The Contractor shall provide the following services during the duration of the availability period:

1) Securable office space with a minimum of two (2) desks.

2) Safe access/egress to/from ship.

3) Direct telephone service at the ship or office space.

4) Daily debris and trash removal.

5) Electrical power, 220 VAC, 1 phase, 100 amp and portable lighting.

6) Sanitary facilities near ship.

7) Water and hoses for ship fire protection.

8) Bilge/fire alarm system.

9) Crane services for assisting the Park Personnel up to 24 hours.

10) Required certifications and permits for entering, burning and welding.

11) Fire watches at all times during any burning or welding operations. The fire watch shall observe the work area for a minimum of one (1) hour after the burning or welding operations are completed.

12) Qualified supervisors and safety personnel for all aspects of the work.

13) Engineering Services as necessary per Scope of Work general requirements and individual CLINs.

14) Qualified dedicated project management and administrative staff.

4. TESTING/INSPECTION/REPORT:

F. Contractor shall provide water to the fire system. Test the fire main pressure to the vessel. The fire main pressure shall provide a water flow to allow a minimum of 40 feet of shooting water through the fire hose nozzle.

G. Test bilge/fire alarm system for operational readiness.

END ITEM 1.02

END PART 1

PART 2: UNDERWATER HULL SYSTEMS MAINTENANCE

Contractor shall provide all labor, equipment and materials to make repairs, prepare and coat the hull, appurtenant components, and systems of the vessel according to the specifications and the general requirements.

Hull coating/painting and hull repairs, as specified in Contract 140P8622C0006 Sections 3 and 4, shall be made after visual and electronic hull surveys are completed and areas of the hull requiring repairs have been identified by the Contractor and the COR.

ITEM 2.01 RUDDER, TAILSHAFT, STERNTUBE, AND PROPELLER REPAIRS,

COATING, AND REINSTALLATION

1. SCOPE: The intent of this item is to: (1) make repairs to each of the following;

rudder, tailshaft, sterntube, and propeller, (2) reinstall and adjust the same, and

(3) conduct operational tests to ensure proper function of all. All necessary steel repairs shall conform with Section 4: Structural Steel Repairs and Installations.

2. REFERENCES:

A. Attachment 7 - USCG Navigation and Inspection Circular 7-01 Procedures for Hull Inspection and Repair on Vessels built of Riveted Construction dated 9 October 2001.

B. Attachment 9 - Hercules Cathodic Protections System Drawings.

C. Attachment 10 – Hercules Stern Tube Bushing and Tail Shaft Drawings.

3. REQUIREMENTS: The Contractor shall provide all labor, materials and equipment to accomplish the following in accordance with the general requirements:

A. RUDDER REPAIR

1) Vacuum test the rudder for evidence of cracks, surface irregularities, or other defects.

2) Repair rudder per PART 4: STRUCTURAL REPAIRS AND

INSTALLATION

1. Replace rudder jump stop per CFR 019

2. Replace steel pipe at rudder trailing edge with welded mild steel pipe – diameter sufficient to fill the void space.

3) Following repairs, coatings, and propellor installation, reinstall the rudder, and all appurtenances.

B. TAIL SHAFT

1) Prepare and coat the tail shaft sections between bearing surfaces prior to reinstallation. (ref. CFR 014)

1. Prepare the surface per SSPC-SP3 Power Tool Cleaning standard.

2. Coat the tailshaft per Contract 140P8622C0006 Section

3.01, PREPARATIONS AND PAINTING THE

UNDERWATER BODY.

C. DEPTH SOUNDER

1) Replace the depth sounder transducer as found.

2) Leave wiring coiled and secured adjacent to the transducer to be wired by NPS at a later date.

4. TESTING/INSPECTION/REPORT:

A. Conduct operational tests for each component and/or system contained within this CLIN upon repair and reinstallation.

B. Submit report on test procedure and outcome.

END ITEM 2.01

END PART 2

PART 3: STRUCTURAL REPAIRS AND INSTALLATION

All structural repairs required under this section shall be performed as outlined in the Part 4 - SUMMARY OF WORK per Contract #140P8622C0006 and further defined below.

ITEM 3.01.A - SHELL PLATE REPAIRS (PLATE P-A-5)

1. REQUIREMENTS: The Contractor shall provide all labor, materials and equipment to repair the shell plate P-A-5 as required after the hull has been cleaned and blasted.

A. Insert Plate Repair: Repair plate P-A-5 with insert approximately 54" x 20" x 3/8" (114.7 Lbs) from 10" aft of frame 32 forward to the butt lap between P-A-4 and P-A-5, full plate width, and attachment rivets as outlined in Insert Plate Repair Standard.

ITEM 3.01.B - SHELL PLATE REPAIRS (PLATE P-B-6)

1. REQUIREMENTS: The Contractor shall provide all labor, materials and equipment to repair the shell plate P-B-6 as required after the hull has been cleaned and blasted.

A. Insert Plate Repair: Repair plate P-B-6 with insert approximately 52" x 20" x 3/8" (110.5 Lbs) from the lap butt between the P-B-4 and P-B-5 plate at frame 33, full plate width, and attachment rivets as outlined in Insert Plate Repair Standard.

ITEM 3.01.C - SHELL PLATE REPAIRS (PLATE P-F-11/12)

1. REQUIREMENTS: The Contractor shall provide all labor, materials and equipment to repair the shell plate P-F-11/12 as required after the hull has been cleaned and blasted.

A. Insert Plate Repair: Repair plate P-F-11/12 with insert approximately 30’ x 10" x 1/2" (510.5 Lbs) from approximately 12” aft of frame 72 aft to the vessel centerline at the stern, from the underside of the rubstrake upper angle iron down to the knuckle below the rubstrake, and attachment rivets as outlined in Insert Plate Repair Standard. Use longest lengths plate reasonable with full penetration welded butts.

ITEM 3.01.D - SHELL PLATE REPAIRS (PLATE S-A-5)

1. REQUIREMENTS: The Contractor shall provide all labor, materials and equipment to repair the shell plate S-A-5 as required after the hull has been cleaned and blasted.

A. Insert Plate Repair: Repair plate S-A-5 with insert approximately 54" x 20" x 3/8" (114.7 Lbs) from 10" aft of frame 32 forward to the butt lap between S-A-4 and S-A-5, full plate width, and attachment rivets as outlined in Insert Plate Repair Standard.

ITEM 3.01.E - SHELL PLATE REPAIRS (PLATE S-B-5)

1. REQUIREMENTS: The Contractor shall provide all labor, materials and equipment to repair the shell plate S-B-5 as required after the hull has been cleaned and blasted.

A. Insert Plate Repair: Repair plate S-B-5 with insert approximately 52" x 20" x 3/8" (110.5 Lbs) from the lap butt between the S-B-4 and S-B-5 plate at frame 33, full plate width, and attachment rivets as outlined in Insert Plate Repair Standard.

ITEM 3.01.F KEEL SHOE REPAIRS

1. REQUIREMENTS: The Contractor shall provide all labor, materials and equipment to crop and renew approximately twenty feet (20’) of keel shoe as required after the hull has been cleaned and blasted.

A. Keel Shoe Plate Repair: Crop the three-quarter inch (3/4”) by six inch (6”) wide keel shoe plate in its entirety from frame 66 aft to the termination.

Attachments shall be full penetration butt weld to adjacent material. ABS Grade A mild steel 6"x 3/4" x 240" flatbar, (306.3 Lbs), and attachment rivets as outlined in Insert Plate Repair Standard.

END ITEM 3.01

ITEM 3.02 FRAME AND FLOOR REPAIRS

1. SCOPE: The Contractor shall provide all labor, management, materials, and equipment to repair frames 24 through 33 and make additional repairs to frames No. 9 through 22, as noted below and as outlined in Contract 140P8622C0006 Part 4 – Summary of Work. All referenced 3” x 3/8” flatbar within this CLIN (floor flanges Frames 9 through 33) is to be changed to ABS grade A mild steel: 3” x 3” x 3/8” angle.

2. REFERENCES:

A. Contract 140P8622C0006 Part 4 – Summary of Work

3. REQUIREMENTS: The Contractor shall provide all labor, materials and equipment to repair the frames and floors on the Hercules as noted below.

A. Frame and Floor No. 9: Port and Starboard side to crop lower 30" to the termination on the Floor (riveted angle bar to the shell with no counter sunk head). ABS Grade A mild steel 5" x 3" x 3/8" angle x 30" x 2, (48.7 Lbs). Floor 9, to crop the web and flange in its entirety. Attachments shall be made with new hot rivets with original design configuration. ABS Grade A mild steel: Web 42"x 20" x 3/8" and Flange 3-1/2" 3” x 3” x 3/8" x 40" flatbar angle, (104.13 Lbs plus 11.23 Lbs additional for material change).

B. Shell Vertical Frame and Floor 10: Frame 10, Port and Starboard side to crop lower 30" to the termination on the Floor (riveted angle bar to the shell with no counter sunk head). ABS Grade A mild steel 5" x 3" x 3/8" angle x 30" x 2, (48.7 Lbs). Floor 10, to crop the web and flange in its entirety. Attachments shall be made with new hot rivets with original design configuration. ABS Grade A mild steel: Web 44"x 20" x 3/8" and Flange 3-1/2" 3” x 3” x 3/8" x 42" flatbar angle, (109.12Lbs plus 11.795 Lbs additional for material change).

C. Shell vertical frame and Floor 11: Tentative at this time – Frame 11, Port and Starboard side to crop lower 36" to the termination on the Floor (riveted angle bar to the shell with no counter sunk head). ABS Grade A mild steel 5" x 3" x 3/8" angle x 36" x 2, (58.4 Lbs). Tentative at this time –

Floor 11, to crop the web and flange in its entirety. Attachments shall be made with new hot rivets with original design configuration. ABS Grade A mild steel: Web 46"x 20" x 3/8" and Flange 3-1/2" 3” x 3” x 3/8" x 44" flatbar angle, (114.11 Lbs plus 12.36 Lbs additional for material change).

D. Shell Vertical Frame and Floor 12: Frame 12, Port and Starboard side to crop lower 36" to the termination on the Floor (riveted angle bar to the shell with no counter sunk head). ABS Grade A mild steel: 5" x 3" x 3/8" angle x 36" x 2. 58.4 Lbs. Floor 12, to crop the web and flange in its entirety. Attachments shall be made with new hot rivets with original design configuration. ABS Grade A mild steel: Web 46"x 20" x 3/8" and Flange 3-1/2" 3” x 3” x 3/8" x 44" flatbar angle, (114.11 Lbs plus 12.36 Lbs additional for material change).

E. Floor 13: Crop the web and flange in its entirety. Attachments shall be made with new hot rivets with original design configuration. ABS Grade A mild steel Web 48"x 21" x 3/8" and Flange 3-1/2 3” x 3” x 3/8" x 46" flatbar angle, (124.21 Lbs plus 12.92 Lbs. additional for material change).

F. Shell Vertical Frame and Floor 14: Frame 14, Port and Starboard side to crop lower 33" to the termination on the Floor (riveted angle bar to the shell with no counter sunk head). ABS Grade A mild steel: 5" x 3" x 3/8" angle x 33" x 2. 53.56 Lbs. Crop the web and flange in its entirety.

Attachments shall be made with new hot rivets with original design configuration. ABS Grade A mild steel Web 50"x 21" x 3/8" and Flange 3- 1/2" 3” x 3” x 3/8" x 48" flatbar angle, (129.41 Lbs. plus 13.48 Lbs additional for material change).

G. Floor 15: Crop the web and flange in its entirety. Attachments shall be made with new hot rivets with original design configuration. ABS Grade A mild steel Web 56"x 22" x 3/8" and Flange 3-1/2" 3” x 3” x 3/8" x 54" flatbar angle, (150.98Lbs. plus 15.17 Lbs additional for material change).

H. Floor 16: Crop the web and flange in its entirety. Attachments shall be made with new hot rivets with original design configuration. ABS Grade A mild steel Web 60"x 22" x 3/8" and Flange 3-1/2" 3” x 3” x 3/8" x 58" flatbar angle, (161.82Lbs. plus 16.29 Lbs additional for material change).

I. Shell Vertical Frame and Floor 17: Frame 17, Port and Starboard side to crop lower 42" Port and 46" Starboard to the termination on the Floor (riveted angle bar to the shell with no counter sunk head). ABS Grade A mild steel: 5" x 3" x 3/8" angle x 88". 71.41 Lbs. Crop the web and flange in its entirety. Attachments shall be made with new hot rivets with original design configuration. ABS Grade A mild steel Web 64"x 22" x 3/8" and Flange 3-1/2" 3” x 3” x 3/8" x 62" flatbar angle, (172.66Lbs. plus 17.41 Lbs additional for material change).

J. Floor 18: Crop the web and flange in its entirety. Attachments shall be made with new hot rivets with original design configuration. ABS Grade A mild steel Web 70"x 23" x 3/8" and Flange 3-1/2" 3” x 3” x 3/8" x 68" flatbar angle, (196.35Lbs. plus 19.1 Lbs additional for material change).

K. Shell Vertical Frame and Floor 19: Frame 19, Port and Starboard side to crop lower 82" to the termination on the Floor (riveted angle bar to the shell with no counter sunk head). ABS Grade A mild steel: 5" x 3" x 3/8" angle x 41" x 2. 66.54 Lbs. Crop the web and flange in its entirety.

Attachments shall be made with new hot rivets with original design configuration. ABS Grade A mild steel Web 74"x 26" x 3/8" and Flange 3- 1/2" 3” x 3” x 3/8" x 72" flatbar angle, (231.2Lbs plus 20.22 Lbs additional for material change).

L. Floor 20: Crop the web and flange in its entirety. Attachments shall be made with new hot rivets with original design configuration. ABS Grade A mild steel Web 76"x 26" x 3/8" and Flange 3-1/2" 3” x 3” x 3/8" x 74" flatbar angle, (237.47Lbs. plus 20.78 Lbs additional for material change).

M. Shell Vertical Frame and Floor 21: Frame 21, Port and Starboard side to crop lower 41" Port and 42" Starboard to the termination on the Floor (riveted angle bar to the shell with no counter sunk head). ABS Grade A mild steel: 5" x 3" x 3/8" angle x 83". 67.35 Lbs. Crop the web and flange in its entirety. Attachments shall be made with new hot rivets with original design configuration. ABS Grade A mild steel Web 78"x 28" x 3/8" and Flange 3-1/2" 3” x 3” x 3/8" x 76" flatbar angle, (260.31Lbs. plus 21.34 Lbs additional for material change).

N. Shell Vertical Frame and Floor 22: Frame 22, Port and Starboard side to crop lower 42" Port and 44" Starboard to the termination on the Floor (riveted angle bar to the shell with no counter sunk head). ABS Grade A mild steel: 5" x 3" x 3/8" angle x 86". 69.79 Lbs. Crop the web and flange in its entirety. Attachments shall be made with new hot rivets with original design configuration. ABS Grade A mild steel Web 78"x 28" x 3/8" and Flange 3-1/2" 3” x 3” x 3/8" x 76" flatbar angle, (260.31Lbs. plus 21.34 Lbs additional for material change).

O. Shell Vertical Frame and Floor 24: Frame 24, Port and Starboard side to crop lower 36" to the termination on the Floor (riveted angle bar to the shell with no counter sunk head). Attachments shall be made with new hot rivets with original design configuration. ABS Grade A mild steel 5" x 3" x 3/8" angle x 36" x 2. 58.4Lbs. Floor 24, to crop the web and flange in its entirety. ABS Grade A mild steel Web 78"x 28" x 3/8" and Flange 3-1/2" 3” x 3” x 3/8" x 76" flatbar angle, (260.31Lbs. plus 21.34 Lbs additional for material change).

1) Frame 24, to crop additional 66” Port and 72” Starboard in addition to the originally specified lengths. Frame additions are to be installed as continuous angle pieces (single angle port and single angle starboard and NOT butt welded to extend length, (riveted angle bar to the shell with no counter sunk head).

Attachments shall be made with new hot rivets with original design configuration. ABS Grade A mild steel 5" x 3" x 3/8" angle x 138" (111.98 LBS additional material).

P. Deep Frame and Floor 25: Deep frame 25 Web, Port and Starboard side to crop lower 48" at the attachment to the boiler foundation face plate along with the riveted angle bar attachment to the shell. Attachments shall be made with new hot rivets with original design configuration. ABS Grade A mild steel Web 48"x 14" x 3/8" and Face plate (built tee) 8" x 3/8" flatbar angle x 50". 113.91Lbs.

1) This item is likely to require exercise of Option Items within Part 9.

Q. Shell Vertical Frame and Floor 26: Frame 26, Port and Starboard side to crop lower 48" to the termination on the Floor (riveted angle bar to the shell with no counter sunk head). Attachments shall be made with new hot rivets with original design configuration. ABS Grade A mild steel 5" x 3" x 3/8" angle x 48" x 2. 77.9Lbs. Floor 26, to crop the web and flange in its entirety. ABS Grade A mild steel; Web 86"x 30" x 3/8" and Flange 3” x 3” x 3/8” x 88” angle, (351.58 Lbs).

1) Frame 26, to crop additional 16” Port and 90” Starboard in addition to the originally specified lengths. Frame additions are to be installed as continuous angle pieces (single angle port and single angle starboard and NOT butt welded to extend length, (riveted angle bar to the shell with no counter sunk head).

Attachments shall be made with new hot rivets with original design configuration. ABS Grade A mild steel 5" x 3" x 3/8" angle x 106" (86.01 LBS additional material).

R. Shell Vertical Frame and Floor 27: Frame 27, Port and Starboard side to crop lower 60" to the termination on the Floor (riveted angle bar to the shell with no counter sunk head). Attachments shall be made with new hot rivets with original design configuration. ABS Grade A mild steel 5" x 3" x 3/8" angle x 60" x 2. 97.4Lbs. Floor 27, to crop the web and flange in its entirety. Attachments shall be made with new hot rivets with original design configuration. ABS Grade A mild steel; Web 86"x 30" x 3/8" and Flange 3-1/2" 3” x 3” x 3/8" x 88" flatbar angle, (306.85Lbs. plus 24.71 Lbs additional for material change).

1) Frame 27, to crop additional 36” Port and 90” Starboard in addition to the originally specified lengths. Frame additions are to be installed as continuous angle pieces (single angle port and single angle starboard and NOT butt welded to extend length, (riveted angle bar to the shell with no counter sunk head).

Attachments shall be made with new hot rivets with original design configuration. ABS Grade A mild steel 5" x 3" x 3/8" angle x 126" (102.35 LBS additional material).

S. Shell Vertical Frame and Floor 28: Frame 28, Port and Starboard side to crop lower 60" to the termination on the Floor (riveted angle bar to the shell with no counter sunk head). Attachments shall be made with new hot rivets with original design configuration. ABS Grade A mild steel 5" x 3" x 3/8" angle x 60" x 2. 97.4Lbs. Floor 28, to crop the web and flange in its entirety. Attachments shall be made with new hot rivets with original design configuration. ABS Grade A mild steel; Web 86"x 28" x 3/8" and Flange 3-1/2" 3” x 3” x 3/8" x 88" flatbar angle, (306.85Lbs. plus 24.71 Lbs additional for material change).

1) Frame 28, to crop additional 54” Port and 84” Starboard in addition to the originally specified lengths. Frame additions are to be installed as continuous angle pieces (single angle port and single angle starboard and NOT butt welded to extend length, (riveted angle bar to the shell with no counter sunk head).

Attachments shall be made with new hot rivets with original design configuration. ABS Grade A mild steel 5" x 3" x 3/8" angle x 138" (111.98 LBS additional material).

T. Shell Vertical Frame and Floor 29: Frame 29, Port and Starboard side to crop lower 60" to the termination on the Floor (riveted angle bar to the shell with no counter sunk head). Attachments shall be made with new hot rivets with original design configuration. ABS Grade A mild steel 5" x 3" x 3/8" angle x 60" x 2. 97.4Lbs. Floor 29, to crop the web and flange, attachments shall be made with new hot rivets with original design configuration. ABS Grade A mild steel; Web 86"x 28" x 3/8" and Flange 3” x 3” x 3/8” x 86” angle, (274.1 Lbs plus 51 Lbs additional for floor angle replacement).

1) Frame 29, to crop additional 48” Port and 90” Starboard in addition to the originally specified lengths. Frame additions are to be installed as continuous angle pieces (single angle port and single angle starboard and NOT butt welded to extend length, (riveted angle bar to the shell with no counter sunk head).

Attachments shall be made with new hot rivets with original design configuration. ABS Grade A mild steel 5" x 3" x 3/8" angle x 138" (111.98 LBS additional material).

U. Deep Frame 30: Deep frame 30 Web, Port and Starboard side to crop lower 48" at the attachment to the boiler foundation face plate along with the riveted angle bar attachment to the shell. Attachments shall be made with new hot rivets with original design configuration. ABS Grade A mild steel foundation face plate port side 8"x 1/2" x 36". 40.81Lbs.

1) This item is likely to require exercise of Option Items within Part 9.

V. Shell Vertical Frame and Floor 31: Frame 31, Port and Starboard side to crop lower 84" to the termination on the Floor (riveted angle bar to the shell with no counter sunk head). Attachments shall be made with new hot rivets with original design configuration. ABS Grade A mild steel 5" x 3" x 3/8" angle x 84" (x2), (136.325 Lbs). Floor 31, to crop the web and flange in its entirety. Attachments shall be made with new hot rivets with original design configuration. ABS Grade A mild steel; Web 94" x 9" x 3/8" (45.96 Lbs), and Flange 3” x 3” x 3/8" x 94" angle, (56.4 Lbs).

W. Shell Vertical Frame and Floor 32: Frame 32, Port and Starboard side to crop lower 120" to the termination on the Floor (riveted angle bar to the shell with no counter sunk head). Attachments shall be made with new hot rivets with original design configuration. ABS Grade A mild steel 5" x 3" x 3/8" angle x 120" (x2), (194.75 Lbs). Floor 31, to crop the web and flange in its entirety. Attachments shall be made with new hot rivets with original design configuration. ABS Grade A mild steel; Web 94" x 10" x 3/8" (49.79 Lbs), and Flange 3” x 3” x 3/8" x 166" angle, (99.6 Lbs).

X. Shell Vertical Frame and Floor 33: Frame 33, Port and Starboard side to crop lower 156" to the termination on the Floor (riveted angle bar to the shell with no counter sunk head). Attachments shall be made with new hot rivets with original design configuration. ABS Grade A mild steel 5" x 3" x 3/8" angle x 156" (x2), (253.175 Lbs). Floor 31, to crop the web and flange in its entirety. Attachments shall be made with new hot rivets with original design configuration. ABS Grade A mild steel; Web 94" x 11" x 3/8" (53.62 Lbs), and Flange 3” x 3” x 3/8" x 238" angle, (142.8 Lbs).

A. Provide Testing/Inspection/Report as required in Part 4 – Summary of

Work.

END ITEM 3.02

ITEM 3.03 LOWER BILGE STRINGER REPAIRS

1. SCOPE: The Contractor shall provide all labor, materials and equipment to repair the bilge stringers as noted below.

2. REFERENCES:

A. Part 4 – Summary of Work

3. REQUIREMENTS: The Contractor shall provide all labor, materials and equipment to replace approximately an additional 120 linear liner inches of bilge stringer including all brackets and rivets used to attach the bilge stringer to the vessels framing.

A. Port Side: Crop and renew approximately 120” of upper bilge stringer from bulkhead 51 to frame no. 56 including renewing all lug clips and attachment rivets. Attachments shall be made with new hot rivets with original design configuration. Stringer ABS Grade A (2) 5” x 3” x 3/8” angle, back-to-back, riveted, (194.75 Lbs). Lug clips ABS Grade A (2) 3” x 3” x 3/8” angle, riveted to frame (57.6 Lbs).

4. TESTING/INSPECTION/REPORT:

A. Provide Testing/Inspection/Report as required in Part 4 – Summary of Work.

END ITEM 3.03

END PART 3

PART 4: NON-STRUCTURAL REPAIRS, WELDMENTS AND COATINGS

ITEM 4.01 PREPARATION AND PAINTING MAIN DECK AND HOUSE

APPURTENANCES

1. SCOPE: The intent of this item is to have the Contractor sandblast the appurtenances to the main and boat decks, house structures, pilot house, and stack, clean, and coat as well as fill deck voids with appropriate marine epoxy filler. The surfaces shall be clean and dry prior to applying filler, primer, and final coatings. The Contractor shall duplicate lettering, numbers and decorative paint on the house. The existing paint is known to have lead base paint and abatement procedures are required.

2. REFERENCES: NONE

3. REQUIREMENTS: The Contractor shall provide the labor, material and equipment to sand, clean, and coat the appurtenant features to the main and boat decks, house structures, pilot house, stack, skirt, and mast appurtenances.

A. All coatings shall be applied under the guidance of the paint manufacturer’s technical representative.

1) The Contractor shall arrange an inspection by the paint manufacturer’s technical representative and the COR prior to the initial coating application, and at each subsequent over coating.

2) No application of coatings is to be made until the prepared surfaces are approved by the COR under the guidance of the paint manufacturer’s technical representative.

3) Areas found to contain runs, overspray, inadequate film thickness, roughness, impregnated dust or grit, or any other film or surface preparation irregularities are to be repaired or re-coated as directed.

B. The house surfaces shall be enclosed prior to sand blasting to prevent contamination from lead paint chips and dust. The guidelines referenced shall be followed including the Contractor’s process for lead abatement procedures.

1) All entrances to interior spaces shall be sealed at the opening to prevent dust, paint chips and grit from entering the interior spaces as noted in Section 1 paragraph 5 and further outlined herein.

2) Cover and seal all equipment, light fixtures, receptacles, nameplates, valves including valve stems, cables, firefighting gear, safety equipment, and all other surfaces not normally subjected to painting to prevent accidental over spraying.

C. Sand Blast the appurtenant feature’s surfaces and main deck voids to standard SSPC-6.

1) The prepared surfaces shall be clean, dust and oil free, and dry prior to applying paint as well as meet any additional coatings manufacturer’s requirements.

D. The Contractor shall apply coatings to main deck voids as follows:

1) Prime deck voids and lower superstructure angle iron voids with manufacturer’s recommended primer before oxidation occurs and then apply Intergard Filler within the overcoating interval.

2) Apply Interguard 822 per manufacturer’s instructions sufficient to fill deck voids flush with surrounding steel.

E. The Contractor shall apply coatings to appurtenant features and main deck void surfaces including angles as follows:

1) One (1) coat of anti-corrosion Bar-Rust, or approved equivalent, multi-purpose epoxy coating (Oxide Red) at 8 MDFT.

2) One (1) stripe coat of anti-corrosion Bar-Rust multi-purpose epoxy coating (Oxide Red) at 8 MDFT to all plate seams and edges of angles.

3) One (1) final coat of anti-corrosion multi-purpose epoxy coating (Oxide Red) at 8 MDFT to all areas including stripe coat.

4) One (1) coat of acrylic polysiloxane (match color scheme) at 3 MDFT including stripe coat to rivets and plate seams. Paint must be applied to the final coat of anti-corrosion Bar-Rust multipurpose epoxy as recommended by the paint manufacture.

F. Application instructions of the paint manufacturer and its representatives shall be strictly adhered to.

G. Paint must be completely mixed prior to and during application to ensure that all solids are in full suspension.

H. Coating shall not be applied when there is moisture or condensation present on the surface.

I. Thinning shall not be done without the specific authorization of the COR and under the guidance of the paint manufacturer's representative.

J. The paint manufacturer's recommendations for applying, drying and re-coating times are to be strictly adhered to.

K. Remove all protective coverings installed in this section.

4. TESTING/INSPECTION/REPORT:

A. Mil Dry Film Thickness (MDFT) measured after each coat has been applied.

B. Inspect dryness prior to next coat.

C. Inspect all protective covering after installation and removal.

END ITEM 4.01

ITEM 4.02 TOPSIDE REPAIRS

1. SCOPE: The intent of this item is to make repairs to the component of the vessel topsides to include; main deck, superstructure, pilot house, stack, and any appurtenances thereto. Repairs may be steel inserts, CLAD welds or epoxy filler as directed below. CLAD welds and epoxy fillers shall be ground flush.

A. It is intended that all steel repairs shall be accomplished with well-fitted, butt-welded insert plates as outlined in Part 4 – Summary of Work. Insert plate repairs shall be designated by COR.

B. This item replaces 140P8622C0006 CLIN 6.03

2. REFERENCES: NONE

3. REQUIREMENTS: The Contractor shall provide the labor, materials and equipment to repair the super structure, pilot house, stack and deck plate.

A. The Contractor and COR shall mark the hull identifying the type of repair.

1) The Contractor shall submit a welding procedure for appropriate techniques for welding to riveted hulls. The welding procedure shall be established by the Contractor and approved by the COR prior to any welding.

2) Make repairs to areas of deterioration identified in CFR 061 and as outlined herein.

B. Prepare, prime and coat repairs as specified in Contract 140P8622C006, Item 3.02 - PREPARATIONS AND PAINTING ABOVE WATERLINE HULL SURFACES. Interior surfaces shall be primed with two (2) coat of anti-corrosion multi-purpose epoxy coating (Oxide Red) at 8 MDFT and two (2) coats, at 4MDFT each, of finish coats to match the surrounding area.

C. Crop and renew approximately two (2) square feet of pilothouse brow near the termination on the starboard side, duplicating original materials and construction.

1) Fill void in forward side of pilot house below main front window, 01 level, Frame 20 with epoxy filler per Option Item 8.05

D. Superstructure Repairs

1) Starboard side at Frame 32, approximately 8” above main deck, CLAD weld 1” hole.

2) Starboard side at forward edge of the ladder well to the boat deck at Frame 31, CLAD weld 1” hole.

3) Starboard side at Frame 30, approximately 10” above main deck, CLAD weld approximately 1” x 4” hole.

4) Port, Aft bottom corner of pilot house at Frame 28, CLAD weld two 1” holes.

E. Exhaust Stack Repairs

1) Front side of Exhaust Stack at Frame 31, Lower Band CLAD weld ½” hole.

2) Front side of exhaust stack, 02 Level and Frame 32, CLAD weld an approximately 1” x 4” hole in the starboard side at the middle band of the smokestack.

F. Main Deck Repairs

1) CLAD weld approximately four pits, each approximately one (1) square inch, to the deck plate forward of the windlass foundation.

One pit has resulted in a quarter inch hole.

4. TESTING/INSPECTION/REPORT:

A. Inspect all welds for cracks and flush with surrounding areas. If cracks are noted, remove weld and re-weld the seam.

END ITEM 4.02/PART 4

END SECTION 2

END BASE ITEMS

SECTION 3: OPTIONAL ITEMS

PART 5: OPTIONAL VESSEL SERVICES

Contractor shall provide all labor, equipment and materials to make repairs, prepare and coat the vessel components, and systems of the vessel hull according to the specifications and the general requirements.

ITEM 5.01.A VESSEL TRANSPORTATION AND DELIVERY

1. SCOPE: The intent of this section is to provide planning, manning, equipment and a minimum of two (2) tugs with sufficient bollard pull to transport the NHL Tugboat Hercules from the Contractor's facility to NPS’ temporary berthing at Mare Island Naval Shipyard (MINSY). NPS will accept the return of the vessel at last line secured at the MINSY berth. The vessel shall be shifted, to arrive at the MINSY berth, between the hours of 1300 and 1600 Tuesday through Thursday.

The Contractor and NPS shall agree to the intended transit date a minimum two

(2) weeks prior. The Contractor shall notify the Contracting Officer and local USCG Sector Office two (2) weeks prior to the intended day desired to shift the vessel to the MINSY berth with the submission for review and approval of a Dead Ship Tow Plan. For the safety of the vessel, the Park prefers the Contractor to deliver the vessel on Tuesday or Wednesday.

2. REFERENCES:

A. Attachment 11 - USCG Marine Safety and Security Information Bulletin (MSIB) 13-01, Dead Ship Tow Guidelines

3. REQUIREMENTS:

A. The Contractor shall provide a written Dead Ship Tow Plan to the USCG local sector office and the Contracting Officer a minimum two (2) weeks prior to the date of intended shifting. The DST plan will contain the following provisions of this CLIN at a minimum.

B. The Contractor shall provide the labor, a minimum of two (2) tugs with sufficient horsepower, with licensed pilot, crew and equipment to safely tow the Tugboat Hercules from the Contractor's facility to MINSY upon completion of the Shipyard availability period.

1) The Contractor and Sub-contractor shall meet with the COR two

(2) weeks prior to shifting the Hercules for the purpose of planning and discussing the requirements for the transfer.

C. NPS will receive the return of the vessel when the last line is secured at MINSY. Vessel movement shall be on Tuesday through Thursday (0800- 1600). Any damage to the vessel while in the custody of the Contractor shall be repaired or replaced at no cost to the Government.

1) The decision to shift the vessel shall be made considering the wind, tide, weather conditions and marine traffic. The COR will approve of the day and time of day to shift the vessel after consultation with the Contractor.

2) The Contractor shall lock down the engine by locking the shaft with a keeper provided by the Park.

D. The Contractor shall provide a crew of four (4) personnel to ride the NHL Tugboat Hercules during the tow to handle lines, assist the tugboat crew and attend to any emergencies that could occur during the transfer.

E. Provide three (3) gas operated portable pumps capable of pumping a minimum of 500 GPM on the ship in case of flooding or fire.

F. Special care shall be taken to safeguard the vessel from damage during transportation.

G. Provide fendering and moorings to properly secure the vessel and prevent damage to vessel.

H. One (1) tugboat shall standby until the vessel is positioned and upon return to NPS at MINSY. The COR will determine when the vessel is satisfactorily moored prior to releasing the standby tug.

I. The Contractor will be informed of the vessel's mooring position by NPS three (3) weeks prior to her return to NPS at MINSY.

4. TESTING/INSPECTION/REPORT:

A. The towing bits, cleats and towing lines shall be inspected for holding strength prior to applying a full towing load.

B. Portable pumps shall be tested for proper operation.

END ITEM 5.01.A

ITEM 5.01.B HERCULES STEAMING SUPORT TO MINSY

1. SCOPE: Provide tug and support services per CLIN 5.01.A to support/escort the Steam Tug HERCULES as the steam plant is brought up to temperature and the vessel engages the main engine to move under her own power. The government anticipates the evolution to require between 4 and 6 hours to occur during and within the execution of CLIN 5.01.A transit to MINSY. This item is for the additional services required to support Hercules steaming and does not replace the scope of CLIN 5.01.A

2. REFERENCES:

A. ISO 19019:2005(en) Sea-going vessels and marine technology — Instructions for planning, carrying out and reporting sea trials

B. 46 CFR 2.01-45 – Excursion Permit

3. REQUIREMENTS

A. The Contractor shall provide the labor and management, a minimum of two (2) tugs with sufficient horsepower, with licensed pilot, crew and equipment to safely escort the Tugboat Hercules during steaming operations while transiting from the Contractor's facility to MINSY upon completion of the Shipyard availability period.

1) The Contractor and Sub-contractor shall meet with the COR two

(2) weeks prior to steaming the Hercules for the purpose of planning and discussing the requirements for the support and escort of steaming operations.

B. The Contractor shall provide a crew of four (4) personnel to ride the NHL Tugboat Hercules during the tow to handle lines, assist the tugboat crew and attend to any emergencies that could occur during the transfer.

4. TESTING/INSPECTION/REPORT:

A. Contractor crew shall monitor areas repaired during the shipyard period for evidence of leaking, stress or other damage that may require the vessel to return to the shipyard for additional emergency repairs.

END ITEM 5.01.B

ITEM 5.02.A HAUL OUT AND BLOCKING – ADDITIONAL LAYDAYS

2. SCOPE: The intent of this item is to provide additional haul out and blocking services for extended repairs to be awarded by either option exercise of contract modification. The scope of services are the same as Supl.1.02.A but are to be priced per day. This supplemental contract line item is intended to encompass the anticipated Period of Performance for modified or option scope items. The government may exercise 120 days or less as necessary.

3. REFERENCES:

A. Attachment 3:

1) Steam Tug Hercules Docking Plan, 1997.

2) Hercules Dock Plan, Position 1 and Position 2, 2009

4. REQUIREMENTS: The Contractor shall provide the labor, material and equipment maintain the vessel blocking and necessary services while hauled out ashore.

4. TESTING/INSPECTION/REPORT:

A. Inspect for excessive loading of the bilge blocks and shores during the docking and settling of the vessel. Bilge blocks must be movable.

Reposition bilge blocks and shores if required.

END ITEM 5.02.A

ITEM 5.02.B WET BERTHING

1. SCOPE: The intent of this item is to provide pier space, access, fendering and moorings for the vessel to be berthed following completion of specified work but before transit. The pier space shall be within the secured area of the shipyard, accessible by NPS personnel and able to support heavy equipment such as cranes, manlifts, and forklifts. NPS intends to commission the steam plant and vessel systems while berthed at the shipyard and conduct operational testing in the presence of USCG inspectors. NPS may conduct incline tests for the purposes of stability analysis. The scope of services are to be priced per day.

The government may exercise 60 days or less as necessary.

2. REFERENCES:

A. Attachment 3:

1) Steam Tug Hercules Docking Plan, 1997.

2) Hercules Dock Plan, Position 1 and Position 2, 2009

3. REQUIREMENTS: The Contractor shall provide the labor, material and equipment maintain the vessel berthing and necessary services while pierside.

A. Inspect moorings for chafe and even distribution of vessel load.

B. Inspect vessel access to ensure no damage to the vessel and that it is safe for NPS staff.

END ITEM 5.02.B

ITEM 5.03.A ADDITIONAL TEMPORARY SERVICES

1. SCOPE: The Contractor shall furnish all labor, equipment and materials to provide temporary services, security and fire protection while the NHL Tugboat Hercules is located at the Contractor's facility. This supplemental contract line item is intended to encompass the anticipated Period of Performance for modified or option scope items. The government may exercise 120 days or less as necessary.

2. REFERENCES: NONE

3. REQUIREMENTS:

A. Requirements are the same as 1.03 priced at a daily rate.

END ITEM 5.03

END PART 5

PART and ITEM 6.0 SEA VALVE REPLACEMENT

1. SCOPE: The intent of this item is to provide pricing for valve replacement should the existing valves fail safety checks. Each size and type of sea valve currently scoped (see table 1 above) shall be individually priced. All new valves shall have; flanges to match existing vessel connections, overall dimensions to allow installation without alteration to the existing vessel connections, the interiors lubricated, new fasteners, shall be in the closed position and installed with all new gaskets and packing. Valve replacement may require modification to new valves.

2. REFERENCES:

A. Attachment 5 – Hercules NPS Drawings

3. REQUIREMENTS: The Contractor shall provide the labor, material and equipment to replace failed valves. Figure I-Supl.2.02 identifies all through hull valves with the potential need for replacement.

A. Valve installation:

1) All valves shall have new gaskets and fasteners.

2) All valves are to be lapped in using a fine grinding compound to assure that the valve disc and seat are mating properly.

3)…