MARY-ANN.DOC

FS-65 MARY ANN

Drydocking, Grit Blasting, Coating, and Other Repairs

GENERAL INFORMATION and REQUIREMENTS

A. The FS-65 MARY ANN is a craft of the military YSD type. It is a self-propelled crane barge, displacing approximately 220 tons, length 103 ft., beam 30 ft., draft 4 ft., emergency draft approximately 5.5 ft., and an overall depth of 7 ft.

B. The contractor shall provide all labor, tools, special tools, material, and equipment necessary to make all removals and restorations; remove and replace interference’s; rig and unrig; make all disassembly and subsequent reassembly to accomplish the work specified herein. All work shall be in compliance with the latest Regulatory Body requirements. The term, “Regulatory Bodies” includes the American Bureau of Shipping, United States Coast Guard, United States Public Health Service, the Department of Labor Occupational Safety and Health Administration, and the Institute of Electrical and Electronic Engineers.

C. If, in the performance of any work required in these Specifications, it becomes necessary to remove or disturb any structural part of the vessel, the contractor shall, upon completion of that work, reinstall or renew if necessary any affected structural part and restore to original conditions of durability, appearance, and seaworthiness. All temporary removals in the way of the work shall be replaced in good order.

D. Any and all removed equipment or parts remain the property of the government and are to be left aboard the vessel, or dispose for scrap credit, as directed by the Contracting Officer’s Representative (COR). The contractor shall re-deliver the vessel in the same clean and orderly condition as when received.

E. The term “or equal” following a Brand Name means that components, equipment or material shall be equivalent in terms of performance, services required, compatibility with interrelated systems and arrangements and supportability over the service life of the components or equipment material. Or Equal shall meet salient characteristics given. Contractor shall take full contractual and technical responsibility for ensuring installation of components or equipment or both and take responsibility for the compatibility with interrelated systems. Reference is given to FAR 52.211-6 Brand Names or Equal incorporated within the terms and conditions. Substitutions are a pre-award evaluation. No substitutions are allowed after award, unless approved by the Contracting Officer.

F. The terms “Replace” or “Renew” mean to remove the existing unit, equipment, or systems, including all interferences and to install a new unit, equipment or system which is either identical to or equal to that which was removed; the installation shall include at a minimum all hook-up, supports, and adapters which are required to effect a fully operational installation complete in all respects.

G. Any repairs or other work resulting from recommendations or other discoveries after the vessel is docked are to be brought to the attention of the COR and CO immediately by use of a contractor generated inspection report. Any such additional work may be subject to a contract delivery order under Supplement Work or a contract modification. Additional work shall be accomplished ONLY WHEN AUTHORIZED IN WRITING WITHIN THE LIMITED DELGATION OF THE COR OR BY THE CONTRACTING OFFICER.

H. Because this craft is not considered deep-sea worthy, all repair/upgrade work must be performed on this vessel in the San Francisco Bay area, such area to include the up-river areas of Sacramento and Stockton. The craft will be delivered to the contractor’s/sub-contractor’s work site prior to the commencement of work and picked up at the same facility upon completion of work by the Maritime Administration’s Reserve Fleet personnel.

I. The contractor shall gas-free or inert all spaces affected by the work described in this Specification and is responsible for determining all spaces requiring gas freeing. All safety precautions contained in the United States Department of Labor Safety and Health Regulations for Ship Repairing, Title 29 CFR Parts 1501.10, 1501.11, 1501.12, 1501.14, and 1501.15 must be strictly observed. A copy of the gas-free certificate shall be presented to the COR before beginning work on the repairs. Initial Certificates and re-certifications shall be issued by an OSHA Certified Chemist. Gas-Free Certificates shall be updated daily by a Competent Person.

J. All welding shall meet ABS and USCG requirements and conform to American Welding Society (AWS) standards. All welds shall be cleaned prior to painting. All surfaces which have been cut drilled, welded, or otherwise modified shall be cleaned, free of grease, slag and foreign matter; and painted in accordance with the coating sections of these Specifications. Prior to any production welding contractor shall conduct a joint inspection with the COR for fit-up.

K. The FS-65 MARY ANN was built to US Navy standards, but has been operated as a public vessel by the US Maritime Administration since 1984 as an inland crane and work barge not for hire. The crane is inspected to FED-OSHA standards. The vessel is not Coast Guard inspected and is not classed by the American Bureau of Shipping. It is the intent of these specifications that working stresses, safety factors, structural arrangements, details and workmanship to be to the same standards as if the vessel was USCG inspected or ABS classed.

L. Contractor shall accomplish all coating processes in accordance with the paint manufacturer’s recommendations (including dry film thicknesses) and under the supervision of the coating manufacturer’s representative. Coating system on the vessel is currently International (AkzoNobel) Paint. Areas of the vessel not intended to be coated shall be protected from overspray.

M. Contractor shall follow OEM installation instructions for any new equipment and hardware installed during the execution of this work package.

STATEMENT OF WORK

1.1 Docking and Undocking

1.1.1 Drydock/haul vessel for inspection, grit blasting, coating and repairs as specified herein. Undock/launch vessel after completion of work specified herein.

1.1.2 Fleet the vessel for access to hull areas obstructed by docking blocks to assure 100% coating coverage on hull bottom.

1.1.3 Provide a copy of docking plan indicating block positions, location of anodes, keel coolers, and any repairs or modifications made to the hull.

1.2 Hull, Deck and Deckhouse Cleaning

1.2.1 Secure all openings to prevent the ingress of wash water, including water tight doors, weathertight doors, windows, hatches, vents and port lights.

1.2.2 Remove all anodes on hull, rudders, nozzles and keel coolers. PRIOR TO REMOVING KEEL COOLER ANODES - Test the keel coolers for electrical isolation from the hull with a Simpson 260 series or equal analog VOM, to give the COR an indication of the performance of the keel coolers anode systems. All anodes are aluminum bolt-on type.

1.2.3 Water wash the vessel’s exterior hull, nozzles, fendering, rudders, main deck, engine house top and bhds, propellers, propeller shafts and keel coolers, using high-pressure fresh water at a minimum of 3000 PSI to remove dirt, growth and salts. Scrape underwater hull where growth is tightly adhering.

1.2.4 Examine hull, deck and appurtenances for apparent damage and coating failure. Submit a written report within two working days detailing conditions found and their location to the COR.

Handling, storage and disposal of hazardous waste, if any, generated as a result of the cleaning operation shall be the responsibility of the contractor, as being the generator. Disposal of any hazardous waste shall be at the contractor’s expense and in accordance with all local, state and federal regulations.

1.3 Anodes

1.3.1 Hull. Renew twenty bolted anodes as original (AHC-10 aluminum).

1.3.2 Kort Nozzles. Renew four bolted anodes per nozzle as original (AHC-11 aluminum).

1.3.3 Rudders. Install two bolted aluminum anodes per rudder, one per side, size TBD by contractor assuming a wetted surface of 50 sq ft per rudder.

1.3.4 Propeller Shafts. Renew three clamp-on collar type anodes per shaft as original (aluminum, for 4” diameter Aquamet stainless steel shafts).

1.3.5 Keel Coolers. Renew seventeen bolted anodes as original:

· Eight ea. AHS-37 aluminum anodes per main engine keel cooler.

· One ea. AHS-20 aluminum anode for the generator keel cooler.

· Inspect copper bonding straps, strap covering and insulators for damage.

· Test the keel coolers for electrical isolation from the hull again after anode renewal. Prove to COR by testing with a Simpson 260 series or equal analog VOM.

Install anodes after all coatings have been applied and sufficiently cured.

1.4 Not Used

1.5 Not Used

1.6 Main Deck Hatches/Scuttles Replacement

Replace the following main deck hatches/scuttles:

1.6.1 Chain Locker, just fwd of FR1, with one flush deck, watertight, quick-acting oval hatch, 19” x 26” clear opening, such as a Freeman Marine Series 200 (dwg #204) or a Cen-Tex Marine dwg # 204-MS.

1.6.2 Lazarette, just fwd of FR12, with two raised, watertight, quick-acting oval hatches with spring assist, 6” coaming, 19” x 26” clear opening, such as a Freeman Marine Series 200 (dwg 215) or a Cen-Tex Marine dwg # 215-MS.

1.6.3 Center Void, with one flush deck, watertight hatch with dogs, 24” x 24” clear opening, such as a Freeman Marine Series 217 (dwg # 217) or a Cen-Tex Marine dwg # 217-MS. The existing 18” scuttle to this void space is currently located on the stbd side between FR4½ and FR5. Crop out and insert the deck where this scuttle is located. Install the new hatch between FR3 and FR3½ on the port side. Install new ladder rungs at this location.

1.6.4 Restore, relocate or reinforce framing/deck in way of these installations as necessary.

1.6.5 Test welds for watertightness in the presence of the COR.

1.6.6 Coat internals and disturbed areas with two coats of Intershield 300V or equal.

1.7 Renew Chocks at FR11 Port & Stbd

1.7.1 Crop off the closed chocks just aft of FR11 port and stbd. Grind weld remnants smooth.

1.7.2 Install ¼” steel doublers to deck and install two new cast steel chocks, 6” x 12” clear opening, such as Baier Marine Model UMC-480 or equal.

1.7.3 Prepare and restore disturbed coatings with two coats of Intershield 300V or equal.

1.8 Not Used

1.9 Deleted

1.10 Underwater Hull, Freeboard and Deck Surface Preparation

1.10.1 Prior to blasting and coating, mask and protect all openings to the vessel hull and interior to prevent the ingress of dust and blast material. Contractor is to wrap and protect the crane (including operator’s cab, machinery, boom, sheaves, rollers and wire rope), stack towers, exhaust pipes and wheelhouse from contamination by blast grit. Care is to be taken to protect glass and plexiglass from blasting. Rubber fendering is to remain secured to the vessel’s hull and not be removed. Contractor is responsible for removal of any dust and blast material from the crane and within the vessel, as contributable to blasting.

1.10.2 Make notations of all hull markings to assure their replacement after the painting process.

1.10.3 Abrasive grit SSPC-SP6 commercial blast the entire hull, main deck, bitts, bollards, cleats, chocks, vents, engine house bulkheads, engine house top (deck), bow bulwarks, and crane pedestal. Do not blast crane, or the stack towers, ladder and wheelhouse installed in 2015.

1.10.4 Upon completion of blasting, conduct a visual inspection of the blasted areas and provide a report of conditions found within two working days, including any recommended actions for repair.

Proper handling, storage and disposal of any hazardous waste generated as a result of the blasting operation shall be the responsibility of the contractor. Disposal of any hazardous waste shall be at the contractor’s expense and in accordance with all local, state and federal regulations.

1.11 Coatings

1.11.1 Underwater Hull

· Apply two full coats of Intershield 300V or equal. Alternate colors to assure coverage.

· Apply two full coats of Interspeed 6400NA or equal, first coat Black, last coat Red.

1.11.2 Freeboard (includes inboard and outboard bulwark on the bow)

· Apply two full coats of Intershield 300V or equal.

· Apply one full coat of Interthane 990HS or equal, Black.

· Paint in draft marks, hull number and vessel name with two coats of Interthane 990H or equal, White.

1.11.3 Engine House Bulkheads and Crane Pedestal

· Apply two full coats of Intershield 300V or equal.

· Apply one coat of Interthane 990HS or equal, Caribbean Blue.

· Except on hand rails and window trim, apply color Black.

1.11.4 Decks and mooring hardware (main deck and engine house top)

· Touch up any coatings on the stack towers disturbed by masking or blasting.

· When dry, mask stack towers to prevent overspray of deck coatings.

· Apply one full coat of Intershield 300V or equal.

· Apply one stripe coat of Intershield 300V or equal, approx. 4” around all bulkheads, bulwarks, bitts, cleats, chocks, gussets, manholes, flush deck hatches, scuttles, deck drains, and other deck appurtenances.

· When dry, mask a 2” margin on the deck around the areas listed above.

· Apply a second full coat of Intergard 300V or equal to the deck. While this coat is still wet, uniformly broadcast aluminum oxide abrasive.

· Do not apply non-skid to drainage trenches of flush deck hatches and scuttles.

· Remove masking on deck and any loose abrasive in the masked area so it is clean before the final coat.

· Apply one full coat of Interthane 990H or equal over the entire deck, including bitts, cleats, and chocks, Deck Gray. Paint vents, bitts, cleats, chocks, and deck doubler around the perimeter Black.

· Reapply crane swing warning stripe with one coat Interthane 990H or equal, Yellow.

· Coat tripping hazards such as vent pipes and raised hatches with one coat of Interthane 990H or equal, Yellow.

1.12 Propellers, Nozzles, Shafts, and Bearings

1.12.1 Inspect both propellers, Kort nozzles, shafts and bearings for damage and probable cause, and provide a report of findings.

1.12.2 Measure clearances in both strut and stern tube bearings and provide a report of findings.

1.12.3 Remove propellers. Balance, polish and reinstall.

1.13 Rudders

1.13.1 Inspect rudder shafts, bearings, packing, tillers and tie rod, including all ball joints. Provide a report of findings.

1.13.2 Tighten all set screws securing tillers to rudder shafts. Note that set screws are double stacked.

1.13.3 Grease, and snug up on both rudder packing glands. Owner to provide EAL grease.

Optional Items

1.14 Cross-Deck Ship Anchor Chain Guide and Chain Stopper

The MARY ANN is used to under-run ship anchor chain during ship mooring and unmooring operations at the Reserve Fleet. Under-running is accomplished by attaching a wire rope sling to a chain link, attaching the sling to the vessel’s crane hook, then lifting the chain sufficiently to where an inverted “V” is formed in the chain that the vessel master can maneuver the bow of the vessel underneath. Once the vessel is underneath the chain, the crane operator lowers the chain to the deck. Essentially, the chain is draped across the deck, with one side of it hanging over the port side and the other side hanging off the stbd side. Then, with the craft Master and crane operator working in harmony, the chain is worked across the deck in similar fashion until the ship anchor is reached.

Rather than continually rigging, lifting and lowering the chain to work the vessel’s way down the length of the chain to the anchor, the following describes a different method to be used to under-run the anchor chain.

Initially this new method will begin as described above, however, once the vessel is positioned beneath the chain, the crane operator will lower the chain into semi-flush-deck chain guides/stoppers on the port and stbd sides. The anchor-side of the chain will have a removable riding pawl inserted into the guide/stopper. Then, a 15-ton speed block will be attached to the H-bitt on the opposite side, and a wire rope or synthetic line will be passed through the block and run cross-deck and attached to a chain link at the stopper. An eye in the bitter end of the wire rope or synthetic line is then attached to the crane hook. The crane operator then hoists, resulting in the chain being dragged across the deck. As the rigged chain link approaches close enough to the speed block and the riding pawl drops between links, hoisting stops and the crane operator slacks slightly to secure the chain link against the pawl. The process is repeated until the vessel is over the ship anchor on the bottom. The anchor chain is then rigged directly to the crane for a vertical hoist of the remaining chain and anchor.

With an understanding of the under-running operation described above, provide services to design and install the necessary apparatus. Basically, this will consist of two chain stoppers with removable riding pawl, either purchased OEM and modified, or built from scratch, installed into the main deck at about FR 5 port and stbd. Additionally, a portable attachment shall be provided to secure a 15-ton speed block to one of the H-bitts at about FR 5, port or stbd. The system is desired to be ambidextrous, enabling the crew to be able to work the chain in from either the port or stbd side.

Concept sketches are available for the contractor’s review. This is not intended to limit the contractor’s design or creativity, it is just to convey the concept. The contractor can expand on the concept, or suggest a different method for guiding and stopping the chain. Ultimately, the COR must approve the design before fabrication and installation.

Please provide separate pricing for the design work and the fabrication/installation.

1.15 Ballast Chain Installation

The intent of this item is to install 50,000 lbs. of ship anchor chain in the void space between FR3 and FR5 to act as ballast to improve the stability of the vessel while handling loads that put a severe heel on the vessel, with the end result being an increase in lift capacity of the vessel at greater crane radii, according to a pre-prepared load chart produced by PCCI, Inc. in 2016 for this condition.

1.15.1 Perform a structural analysis of the vessel hull plating and longitudinal framing to determine a safe arrangement for the anchor chain.

1.15.2. Remove the anchor chain deck loaded on the main deck. High pressure water wash the chain to remove dirt, mud and light rust scale. There are approximately 18 shots of 2 ½“ dielock chain aboard, in various lengths.

1.15.3 Abrasive grit blast the chain to SSPC-SP7.

1.15.4 Apply one coat of Intertuff 262 KHA303/A5gl or equal, red.

1.15.5 Apply one coat of Intertuff 262 KHA304/A5gl or equal, black.

1.15.6 High pressure water wash the internals of the void space between FR3 and FR5. Pump void and remove water. Dry void internals. Inspect and provide a report of findings. Surface preparation and coating restoration where coating has failed will be the subject of a change order.

1.15.7 Place the anchor chain in the void space, taking into consideration the structural analysis, cushioning between the chain and where it will make contact with the vessel’s internal structure, and potentially securing it to prevent shifting during list conditions.

1.15.8 After the chain is installed in the void, perform an incline experiment.

1.15.9 Produce new load charts for the newly ballasted condition. The contractor may consult with PCCI, Inc. to assist with this since they have already modeled the vessel’s hull form and have developed similar charts. Load charts produced are to meet the stability requirements of USCG regulation 46CFR173.020 – Intact stability standards: Counterballasted and non-counterballasted vessels. Rated hook capacities to be for fully-revolving operation.

1.15.10 Certify the crane to the new load charts with an accredited crane inspection firm.

1.16 Renew Engine Room Soft Patch

The bolted soft patch used for equipment access to the engine room, located on the port side of the engine house, is warped and damaged and leaks rainwater into the engine room and onto electrical equipment below.

1.16.1 Design a replacement soft patch that can be installed in the same location as the existing one. The opening can be a little larger than existing. Submit the design to the COR for approval. Pieces of the original soft patch may be used.

1.16.2 Once the design is approved, fabricate and install the soft patch.

1.16.3 Restore all disturbed coatings as original.

SUPPLEMENTAL ITEMS

2.0 Supplemental Labor and Materials

The contractor is to estimate the cost of five hundred (500) hours of supplemental repair work to be performed on this vessel in terms of a yard-wide man-hour (MH) labor rate.

An additional estimate of $14,000.00 may be utilized for material acquisition costs exclusive of other materials already specified in these repair specifications.

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