Thunderbird_TechSpecs_211025.pdf

October 18, 2021

M/V Thunderbird 2022 Shipyard Period: Technical Specifications

Introduction

This work package details the scope of work to be completed during the 2022 Shipyard Period for the Washington State Parks & Recreation Commission’s Vessel M/V Thunderbird. Contractor shall furnish all material, labor, and equipment required for completion of the Work Packages except for material, labor, and equipment specifically stated as being furnished by the Owner and/or installed by another contractor. Material and equipment shall be commercial grade, suitable for marine service, and installed consistent with good marine practice for the Vessel’s present classification.

These requirements are not intended to include every detail of construction and equipment and the omission of such will not relieve Contractor of its obligation to furnish, without extra cost, all items of the requirements and drawings which are implied or necessary to complete the Work Package.

The Contractor will be required, without extra cost, to temporarily remove, reinstall, and ensure proper operation of the vessel’s equipment in order to complete elements of the Work Package.

The Technical Requirements are flexible in certain areas. The Owner and Contractor shall reach agreement to assure compatibility of design and construction methodology.

General Requirements

The Contractor shall include in their bid price for this work package only the work items listed herein. Discovery work and work resulting from inspections shall be priced as lot work.

The Contractor shall include removal and reinstallation of insulation, piping, HVAC components, electrical cables, and incidental interferences in way of all work identified for these work packages. Upon completing the work, the Contractor shall clean the work area and its surfaces of all work debris and recoat existing coated surfaces damaged by welding and other hotwork in accordance with Shipyard Specification and this section.

All temporary openings and removals necessary to facilitate the work identified for these packages shall be bid and carried out as part of this work package. All temporary openings and removals shall be reinstalled and restored to original condition. All affected mechanical and electrical components shall be tested to the Owner’s satisfaction after reinstallation.

After the work items listed herein have been completed, the end result of this work package shall be fully functional equipment meeting all applicable US Coast Guard (USCG) requirements. The Contractor shall be responsible for all removals, inspections, modifications, installations, and testing as described below and in the Shipyard Specification. All fees for these services shall be the responsibility of the Contractor and shall be included in the bid.

The Shipyard Specification contains general technical and quality of work requirements relevant to the work identified for this package, including Contractor responsibilities for providing, arranging, integrating, testing, and commissioning all required work. The requirements included in the Shipyard Specification shall be applied to all aspects of this work. The requirements described herein shall be considered as additional to the requirements of the Shipyard Specification. Unless otherwise noted, all equipment and material permanently removed from the vessel shall become the property of the Contractor.

Base Bid Items: Work Packages 1-4

WP 1 Drydock and Refloat Vessel

Description: Drydock the Vessel and prepare to accomplish Work Packages requiring Vessel to be out of the water. Empty, clean, and certify gas-free all regularly inaccessible voids and fuel tanks to prepare them for entry for inspection.

Work to be completed by Contractor:

• Drydock the Vessel upon delivery by Owner.

• Contractor shall ensure blocks or other weight bearing apparatus are properly placed and do not damage the Vessel or any attachments to the Vessel.

• Contractor shall exercise due diligence in protecting the Vessel's transducers, propeller shaft, propeller, rudders, and rudder supports.

• Upon completion of all Work Packages, ensure all sea valves, through-hulls, and other watertight fixtures are properly closed to ensure watertight integrity of the Vessel.

• Undock the Vessel when all work is completed at a mutually agreed time between Contractor and Owner Representative. Owner representative must be present at time of undocking.

• Provide a report of the conditions found at time of drydocking.

• Protect underwater transducers to prevent damage or overspray while Vessel is out of the water.

• Provide shore power continuously throughout work to ensure operation of well-deck bilge pump or provide alternative bilge box pump.

WP 1.1 High-Pressure Wash Underwater Hull

Within 12 hours of drydocking the Vessel, Contractor shall complete a high-pressure wash of the underwater hull to remove any marine growth.

WP 1.2 Fuel Pumping, Tank, Void, and Bilge Cleaning, Refueling

Prior to commencing with following work items, all diesel fuel must be removed from the vessel’s two aft active and two forward inactive fuel tanks and the tanks must be cleaned for inspection and painting. Contractor must handle pumping and disposal of fuel. All voids and bilge areas must be cleaned for painting. All through tank piping suctions and lines shall be inspected and checked for leaks by pressure test and to verify the condition of the steel. Any uncapped/unsealed entries, suctions or fuel lines to the forward tanks shall be sealed to make oil-tight and water-tight to prevent future water intrusion.

The Contractor shall be responsible for opening and closing all manhole covers required for this work item. The Contractor shall retain the services of a marine chemist or competent shipyard person who shall check for a safe breathable atmosphere and certify “Safe for Workers” in all inspected tanks, and “Safe for Hot Work” in all tanks where welding or other hot work is being performed. The Contractor shall be responsible for maintaining the “Safe for Workers/Hot Work” certificates daily and display them as outlined below.

Inspecting & Closing Up Tanks

The Contractor shall be responsible for removing all foreign material in the tanks prior to notifying the Owner of the intent to close the tank. The Owner shall inspect and approve the condition of each opened tank prior to closure.

Upon receipt of the Owner’s approval, the Contractor shall be responsible for closing each tank. The Contractor shall replace any broken or missing fasteners and hardware and shall supply and install new gaskets for each tank.

Refueling costs will be the responsibility of the Owner at a time agreed upon with the Contractor.

WP 2 Surface Preparation

Description: Prepare all steel and aluminum surfaces for inspection, potential steel renewal, and recoating. All surface preparation shall be completed as specified in Sherwin Williams: Thunderbird Surface Preparation & Application (Revision 2).

Following surface preparation, the Owner will arrange and pay for thickness sounding to determine full scope of steel renewal needs.

Work to be completed:

• Remove zinc anodes. Anodes more than 60% deteriorated will be candidates for replacement. In this event, Contractor shall provide pricing for furnishing additional anodes using the Change Order process.

• Wash, blast, and clean all exterior steel surfaces including hull, deck, bin walls, bow gate, and rails.

• Wash and prepare aluminum house.

• Clean and prepare engine room as required for painting including temporary removal of equipment and blasting/scaling as needed.

• Blast and clean two (2) anchors to prepare for painting

WP 3 Structure Renewal

Description: Following blasting and cleaning of all steel surfaces, and upon results of thickness gauging, the Contractor will crop and replace steel where excessive wastage has occurred. These locations include portions of the cap-flange rails, bin walls, decking, hull plating, stiffeners, deck equipment foundations, and fuel tank fills and vents. Thickness gauging completed following blasting may result in additional renewal needs to be paid at Unit Pricing rates.

Work to be completed:

• Crop and replace plating and stiffeners under port side water tank. Base bid shall include up to 25 square feet of hull plating renewal and associate stiffeners per original construction.

Figure 1: Plating Wastage Below Port Water Tank

• Crop and replace ¼” steel deck plating above fuel port aft fuel tank where thickness gauging shows less than 0.20” thickness. Base bid shall include 300 square feet of deck renewal; additional renewal will be paid at rate submitted in Unit Bid Price Lot 1- UP1

Figure 2: Deck Wastage

• Crop and replace bin 3/16” steel wall plating where through-wastage has occurred. Bin wall plating shall be completely sealed to mitigate further corrosion. Base bid shall include 200 square feet of bin wall plating steel renewal; additional steel renewal will be paid at the rate submitted in Unit Bid Price Lot 1-

UP1

Figure 3: Bin Wall Wastage

• Crop and replace wasted cap flange rail throughout

Figure 4: Example of Cap Flange Rail Wastage

• Remove anchor winches (2) and bow gate winches (2); crop and replace foundation for aft anchor winch; blast and paint gate winch foundations; changes to foundation type must be approved by Owner

Figure 5: Aft Anchor Winch Foundation Figure 6: Bow Gate Winch Foundation

• Crop and replace wasted steel on forward crane slew ring guard.

Figure 7: Aft Crane Ring Slew Guard Wastage

• Remove remnants, stubs, and unused foundations throughout

• Permanently seal and make watertight, access to forward fuel tanks including removing two (2) fills and two (2) vents, then welding steel over the remaining openings.

Figure 8: Example of Fuel Fill and Vent to be Removed

• Crop and replace aft fuel tank fills two (2) and two (2) vents

Figure 9: Aft Fuel Fill and Vent to be Replaced

• Crop and replace three (3) steel rail cleats to match galvanized cleats

Figure 10: Wasted Deck Cleats to be Replaced with Galvanized Cleats

• Replace any missing or wasted anode studs

WP 4 Coating Application

Description: Following completion of required structure renewal, all steel and aluminum surfaces shall be recoated with paint per Sherwin Williams: Thunderbird Surface Preparation & Application (Revision 2). The Contractor may choose an alternative paint vendor but will need prior approval of Owner representative.

Work to be completed:

• Paint all steel and aluminum surfaces as specified in Sherwin Williams: Thunderbird Surface Preparation & Application (Revision 2)

• Paint anchors per underwater hull application in Sherwin Williams: Thunderbird Surface Preparation & Application (Revision 2)

• Reinstall anodes

Alternate Bid Items

Alternate Bid Items: Priority 1

A1.1 Propulsion Equipment

Description: The Contractor shall remove the propulsion shafting and inspect condition both shafts. Upon removing the port and starboard shafts, bearing surfaces, keyways, coupling surfaces, and propellers, mating surfaces shall be inspected by dye penetrant, or other non-destructive testing.

After all inspections are complete, Condition Found Report (CFR) shall be provided to the Owner describing and deficiencies noted. Resolution of deficiencies will be handled under separate change orders.

While removed, the Owner will arrange and pay for propellers to be serviced.

The Contractor shall reinstall the shafts with new cutlass bearings and shall replace the dripless packings. Shaft anodes more than 60% deteriorated will be candidates for replacement. In this event, Contractor shall provide pricing for furnishing additional anodes using the Change Order process. Following reinstallation, the Contractor shall perform operational testing to ensure appropriate shaft installation and alignment.

A1.2 Consumable Replacement

Description: The Contractor shall remove and replace two (2) main engine oil pan gaskets to be provided by the Owner

Figure 11: One of two main engines

A1.3 Rudder Tube Inspection and Consumable Replacement

Description: The Contractor shall inspect the two (2) rudder tubes and provide a Condition Found Report (CFR) to the Owner describing any deficiencies noted. The Contractor shall provide and replace rudder packings.

Resolution of additional deficiencies will be handled under separate change orders.

Figure 12: Rudder Tube and Packing

A1.4 Seacock Valving Inspection and Replacement of Gaskets and Piping

Description: The Contractor shall inspect the seacock valving and provide a Condition Found Report (CFR) to the Owner describing any deficiencies noted.

The Contractor shall replace seacock valve gaskets and the seawater hose running from the seacock valve to the sea strainer. The current hose is steel reinforced rubber hose of approximately 20 feet in length, routed under the deck through the stringers. The Contractor shall replace in kind with steel reinforced rubber hose, securing with stainless steel hose clamps.

Figure 13: Existing Seacock Valve

Resolution of additional deficiencies will be handled under separate change orders.

A1.5 Engine-driven Jabsco Bilge Pumps Inspection and Piping Replacement

Description: The Contractor shall replace, with equivalent or better, the intake strainers, piping, and all valves from the intake to the thru-hull fittings for the two (2) engine-driven bilge pumps.

The Contractor shall inspect condition of two (2) engine-driven bilge pumps and provide a Condition Found Report (CFR) to the Owner describing any deficiencies noted.

Figure 14: Engine-Driven Bilge Pump

Alternate Bed Items: Priority 2

A2.1 Auxiliary Systems: Bilge Box Screening and Hatch

Description: The bilge box is open to the Engine Room and has no grating over the inlet. The lack of grating over the inlet enables entry of larger debris that could damage the bilge pumps, and the lack of watertight cover creates a risk of water ingress and/or flooding. The Contractor shall:

• Fashion a debris screen from expanded metal grating for the bilge box inlet.

o Expanded metal shall be Stainless Steel, Type 304, Standard/Raised, ¼” thick Grating, >50%

Open Area

Figure 15: Bilge Box Opening

• Fashion a watertight hatch lid for the bilge box.

o Floating hinged type o 4-dogged, with flush sockets and T-bar wrench

Figure 16: Bilge Box Lid to be made Watertight

Alternate Bid Items: Priority 3

A3.1 Auxiliary Equipment: Winch Servicing

Description: While anchors and winches are removed for paint and for foundation replacement, the Contractor shall remove chain from anchor winches. The chain shall be retained and delivered to the Owner. The Contractor shall service the anchor winches (2) and the bow gate winches (2), then reinstall at completion of the painting and foundation replacement. The Owner will provide new chain and the Contractor shall spool the chain onto the winches and reconnect the painted anchors. The Owner will provide new bow gate door blocks.

A3.2 Fuel System

Description: The vessel's fuel system includes two double bottom fuel tanks total capacity 5,000 gallons. These are fed by a stainless-steel supply, distribution, and return manifold with USCG approved hoses in the Engine Room.

The fuel manifold and piping require evaluation and repair to ensure proper and equal flow to/from both tanks.

The return piping currently only distributes to the port side double bottom tank, resulting in uneven distribution and an unwanted list of the vessel.

The Contractor shall propose a preliminary diagnosis and workable solution for modifying the fuel tank piping to equalize the return diesel from the engines to both tanks. The Contractor selected will be given the opportunity to troubleshoot the system, further diagnose the issue, and if needed, propose an alternate repair plan to the Owner.

Lot Unit Pricing

UP1 – Steel Renewal

The Contractor shall provide a separate price to cut out and replace deck, stiffeners and attached structure (including all surface preparation) in any interior space. The lot price shall include structural fairness and alignment inspections and quality assurance checks of structural fabrications. The lot price does not include removing and reinstalling interferences in way of this lot item, such as: electrical fixtures and cabling, plumbing fixtures, piping, surface preparation, painting, ventilation, insulation, and ceilings/joiner work. Quantity adjustments shall be prorated on a per-100 square-foot basis beyond work specified in the base bid items.

UP2- Piping and Pipe Insulation

The Contractor shall provide a separate price to renew and insulate, with non-ACM materials, piping not covered in the baseline scope of work.

The Contractor shall provide a separate price to renew piping for each of the following nominal pipe sizes, and materials including the cost of the pipe unions/fittings, hangers, and fit-up, but excluding the cost of valves and valve mating flanges/fittings for each of the following nominal pipe sizes. Quantity adjustments shall be prorated on a per-25 lineal-foot basis.

Item No. Pipe Size Schedule Material # Fittings Price per 25 lineal feet

UP2.1 <2” 40 Steel 4

UP2.2 4” 40 Steel 2

UP2.3 6” 40 Steel 2

UP2.4 <2” 80 Steel 4

UP2.5 4” 80 Steel 2

UP2.6 6” 80 Steel 2

UP2.7 <2” 40 Stainless Steel 4

UP2.8 4 40 Stainless Steel 2

UP2.9 6 40 Stainless Steel 2

The Contractor shall provide a separate price to provide and install fibrous glass thermal pipe insulation, lining, and adhesive for each of the following nominal pipe sizes: less than 2"; 2" and up to 4"; 4" and up to 6".

Quantity adjustments shall be prorated on a per-25 lineal-foot basis.

Item No. Pipe Insulation Size Price per 25 lineal feet

UP2.10 <2”

UP2.11 2”-<4”

UP2.12 4”-6”

UP3- Miscellaneous Coating Repair

Discovery work may result in additional coating repair needs beyond those in the base bid items. These locations may include voids and forward lockers. The Contractor shall provide a separate price to renew coatings on steel plate. This price shall include the cost to prepare the plate (needle gunning, etc.) and cover with a minimum of 2 coats of paint. Quantity adjustments shall be prorated on a per-100 square-foot basis.

Separate costs shall be provided for:

Item No. Misc. Coating Repair Price per 100 square feet

UP3.1 Deck Tops

UP3.2 Underside of decks, including stiffeners

UP3.3 Vertical surfaces

UP3.4 Vertical surfaces with stiffeners

UP4- Moorage and Temporary Services

The Contractor shall provide a per-day cost for the vessel to moor at the Contractor’s facility.

UP5- Additional Lay-day on the Drydock

The Contractor shall provide a per-day cost of each additional lay-day on the drydock, should additional work delay the undocking. This cost shall include all services provided to the vessel, e.g. water, electrical, security.

UP6- Tank Anode Replacement

The Contractor shall provide a separate price for replacement of bolted-type tank anodes. The lot work shall include replacement of five anodes, with the option of using up to 40 lots (5 anodes per lot, 200 anodes total).

All costs for anode replacement are to include renewal or replacement of defective fasteners and attachments.

New tanks anodes shall be zinc.

UP7- General Services

Item No. Classification Per hour cost

UP7.1 Steelwork

UP7.2 Welding

UP7.3 Pipefitting

UP7.4 Electrical

UP7.5 Painting

UP7.6 Joinery

UP7.7 Rigging

UP7.8 Marine Chemist

UP7.9 Firewatch

UP7.10 Other: