W91236-16-R-0004_Attachment_J-08_ND-12_Barge_Maintenance.pdf

1 February 2016

ATTACHMENT 8

ND-12 Barge Maintenance

1. SCOPE OF WORK

1.1. Scope. The Contractor shall furnish all labor, materials, supplies, equipment and services as necessary to accomplish repairs as stated within this specification for the Army Corps of Engineers ND-12 Barge. Army Corps of Engineers vessel is considered to be “miscellaneous vessels” for 29 CFR applications

1.2. General information.

Length OA: 25 ft. Hull Material: Steel Beam: 12 ft.

2. REQUIREMENTS

2.1. Order of precedence. The Contractor shall be aware that in the event of a conflict between the text of the specification and the applicable references, order of precedence shall be as listed below. Nothing in these documents, however, supersedes applicable laws and regulations unless a specific exemption has been obtained.

a. The text of the specification. d. Publications and industry standards.

b. Other contract documents. e. Federal specifications and standards.

c. Drawings.

2.2. Gas-freeing. The Contractor shall certify all spaces and components "SAFE FOR WORKERS" and “SAFE FOR HOT WORK”, as applicable, in accordance with 29 CFR 1915, Subpart B, whenever entering a tank or compartment or conducting hot work. Be aware work necessary to certify spaces and components includes, but is not limited to opening, ventilating, cleaning, and maintaining the safe conditions for the duration of the work being performed.

2.3. Tag-out. The Contractor shall do the following, when performing tag-out on a system or component:

2.3.1. Isolate, blank, and tagging out, before starting work on a system or component specified in a work item.

2.3.2. Use contractor’s tag-out log and instructions for proper placement of system tags to ensure the isolation of the component, piping, electrical circuit, or system. Ensure enough tags are used to prevent system or component operation from all stations that could exercise control.

2.4. Handling of interferences. The Contractor shall remove all interferences to facilitate the performance of work specified in the applicable work item(s). Restore removed interferences upon completion of work. The Contractor may exercise the discretion to work around certain interferences, when possible, so long as the specified work is successfully accomplished.

2.4.1. Safety measures. Exercise the below-specified safety precautions, to eliminate hazardous conditions, during the following conditions:

a. When hatches or scuttles and lifelines or liferails are removed as interferences.

b. When electrical circuits serving ladders and passageways are removed or disconnected as interferences.

2.4.1.1. Temporary covers for deck openings. Install a suitable plate or cover over each resulting deck opening, to prevent injury to personnel, and protect the vessel’s interior spaces and equipment against outside contamination. When covering a deck opening left from a removed hatch or scuttle, ensure that the cover is configured to allow normal passage of work personnel and equipment.

2.4.1.2. Temporary lines or rails. Install temporary lines or rails to replace all removed lifelines or liferails.

2.4.2. System restoration. Ensure that all spaces or compartments, components, or equipment damaged or exposed by interference removals are restored to original conditions in form, fit, function, and appearance. Renew the following components or disturbed portions of systems, as applicable, when reassembling or reinstalling affected systems:

a. Gasket materials. c. Deck covering systems.

b. Insulation material installed with adhesive. d. Paint coating systems.

2.5. Assignment of fire watch personnel. Before beginning any hot work, the Contractor shall:

2.5.1. Contractor provided Fire Watch Personnel. When required by the specification work item(s), provide all Fire Watch Personnel and required equipment, on a per job basis, in accordance with NFPA 312, Chapter 2 (Construction, Conversion, and Repair).

2.5.2. Compliance. Firewatch personnel or Fire extinguishers shall be provided for all work as required by applicable law or regulation and any work activity meeting the definition of Hot Work. This requirement applies to all work under the scope of the contract, subsequently modified into the contract, and any contract extension periods granted.

2.6. Restorations. The Contractor shall restore, renew, or repair all machinery, piping, wiring, insulation, paint work, deck coverings, and any other article or component removed, moved, disturbed, or damaged by the Contractor in accomplishing the work outlined in the specification package.

3. DEFINITIONS

3.1. Definitions. For the extent of the repair availability, the Contractor shall refer to the following definitions whenever the terms are used in work items.

3.1.1. Blanking: Preclude the entry of foreign material, protect exposed threads or flanges, and remove blanks before reinstalling the system or component(s). Specific requirements of blanking equipment shall be in accordance with the individual work item(s).

3.1.2. Certify: Produce a printed certificate.

3.1.3. Drydock: All references to drydock facilities as used in this specification, include graving docks, floating drydocks, marine railways, vertical lifts, cranes with slings or travel lifts.

3.1.4. Fastener: Includes all components for securing. For example, for bolting, the term fastener shall include bolts, nuts, threaded studs, and washers.

3.1.5. Fleeting: The refloating and shifting of a vessel to an alternate docking position.

3.1.6. Hot work: Any activity involving riveting, welding, burning, the use of power-actuated tools or similar fire producing operations. Grinding, drilling, abrasive blasting, or similar spark-producing operations are also considered hot work, except when such operations are isolated physically from any atmosphere containing more than 10 percent of the Lower Explosive Limit (LEL) of a flammable or combustible substance.

3.1.7. Inspect: Examine an object or a space for defects, abnormalities, or deviations from a prescribed standard.

3.1.8. Install: Permanently place in position, for example, by bolting or welding.

3.1.9. Interferences: Interferences is defined as any part of a vessel, whether permanently installed or portable, which must be moved or disturbed, to accomplish work specified a work item.

3.1.10. Reinstall: Replace after temporary removal.

3.1.11. Renew or Replace: Permanently remove an item and install a new, unused item, identical in form, fit, and function.

3.1.12. Repair: To correct an identified discrepancy to a given standard of performance.

3.1.13. Residual fluid and/or residues: Liquid, dirt, and other substance remaining after drainage or removal, such as in a tank after loss of suction by installed equipment.

3.1.14. Vessels: Vessels are defined as Army Corps of Engineers boats and barges.

4. DRYDOCK SCOPE

4.1. Scope. This work item describes the requirements for the Contractor to drydock the barge and undock the barge after performing repairs.

4.2. General. The Contractor shall drydock the barge at or near its current location at Great Bridge Army Corps of Engineers Basin or adjacent marina and transport the barge to the contractor’s facility for repairs. After performing all contracted repair work, undock the barge and return the barge to the Great Bridge Army Corps of Engineers Basin.

4.3. Pre-docking conference. Docking procedure discussion. Review the procedure that will be used to lift the barge, transport the barge, undock the barge and return trip plan.

4.4. Hauling and blocking.

4.4.1. Blocking inspection. Visually demonstrate that the blocks are positioned to support the barge at bulkhead positions and that side blocks are adequate to prevent the barge from shifting.

4.5.2. Assistance for safe hauling. The Contractor shall provide all resources necessary to safely dock, transport and undock the barge.

4.6.3. Tow barge to haul-out site. The contractor is required to tow the barge to the site where the barge will be hauled out of the water for transport to the contractors repair facility.

4.6.4. Drydock barge for the duration of repairs within this repair.

4.6.5. Hull and block inspection after hauling. Immediately after the barge has been placed on blocks, the Contractor shall inspect the block to hull contact. Shim blocks as needed. If blocks cannot be properly shimmed, correct the block positions and or height.

4.7. Fleet barge. After underwater hull work is complete, fleet the barge to ensure that the entire underwater hull is preserved.

4.8. Work to be performed prior to undocking barge.

4.8.1. All underwater body protective coverings and plugs removed.

4.8.2. All underwater body work verified as complete.

4.9. Undock the Barge. Upon completion of all scheduled work, the Contractor shall undock the barge.

5. EXTERIOR PRESERVATION SCOPE

5.1. Scope. This work item describes the requirements for the preservation of all normally painted exterior surfaces of the ND-12 Barge.

5.2. Painting General.

5.2.1. Material receipt inspection. The Contractor shall ensure that all coatings or coating products are delivered to the job site in original and unopened containers, with the following information: product name or number, manufacturer, batch number, date of manufacture, shelf life, product data sheet or ASTM F718 sheet, material safety data sheet (MSDS) and certificate of compliance (COC).

5.2.2. Material storage, handling, mixing, and application. The Contractor shall observe all paint manufacturers’ recommended procedures, as well as the good painting practice recommendations outlined in SSPC Manual, Volume 1, Chapter 5.1 (Paint Application), for all aspects involving storage, handling, mixing, and application of paint materials. Ensure that ambient conditions (dew point, surface and air temperature, and relative humidity) are within the parameters recommended by the applicable paint manufacturers, during application and curing evolutions.

5.2.3. Environmental protection compliance. The Contractor shall comply with all Federal, state, and local public safety and environmental protection regulations applicable to the following issues: Handling and disposal of spent abrasives and wastes generated during paint removal procedures and protection of the air and waterways during blasting and coating application procedures.

5.3. Painting Specifics.

5.3.1. Contrasting colors. All coats in multi-coat systems, including stripe coats, are to be applied in contrasting colors.

5.3.2. Stripe coating. After the primer coat has cured, brush-apply an un-thinned coat of the same primer paint over all edges, weld seams, cut-outs, foot/hand holds, non-flat mounting hardware, and areas of complex geometries; apply stripe coat at three mils wet film thickness (WFT), to extend outside the edge by approximately one inch. Stripe coating is not required for touch-up preservation.

5.3.3. Feathering. Where prepared surfaces interface with existing non-affected coated surfaces, feather the coated surfaces into the prepared areas, to provide a smooth transition between existing and new coatings.

5.4. Preservation for keel to waterline.

5.4.1. From keel to waterline, waterblast to SSPC-SP 12 or sandblast to SSPC-SP 6.

5.4.2. Clean the surface of the keel to the waterline to completely remove particulate including dust, moisture, paint chips and blast grit.

5.4.3. Apply 3 coats of marine anticorrosive epoxy at 2 dry mils, 4 wet mils, or per the paint manufactures instructions regarding mil thickness per coat. Marine epoxy primer shall be compatible with follow-on coating systems (top coat).

5.4.4. Paint the entire underwater hull from the keel to the waterline including other normally painted appendages and sea chest, with 3 coats of marine grade polishing antifouling to the mil thickness as specified by the paint manufacturer. Antifouling coating shall be alternating colors with the final coat being red. Paint draft markings and static draft markings using marine grade polyurethane finish. Refer to paint schedule in paragraph 5.8 for paint color requirements.

5.5. Preservation for waterline to deck.

5.5.1. From waterline to deck including coaming waterblast to SSPC-SP 12 or sandblast to

SSPC-SP 6.

5.5.2. Clean the surface of the waterline to deck to completely remove particulate including dust, moisture, paint chips and blast grit.

5.5.3. Apply 3 coats of marine epoxy primer at 2 dry mils, 4 wet mils, or per the paint manufactures instructions regarding mil thickness per coat. Marine epoxy primer shall be compatible with follow-on coating systems (top coat).

5.5.4. Paint the entire waterline to deck surfaces including coaming and other normally painted appendages with 1 coat of marine grade polyurethane finish to the mil thickness as specified by the manufacturer. Paint draft marks (if applicable), using marine grade polyurethane finish.

Refer to paint schedule in paragraph 5.8 for paint color requirements.

5.5.6. Paint the words U.S. ARMY CORPS OF ENGINEERS in 4” block letters on the bow port and starboard. All lettering will be done using 1 coat of white acrylic paint, or equal. Refer to paint schedule in paragraph 5.8 for paint color requirements.

5.6. Preserve main deck, mooring/towing bits and other permanent appendages.

5.6.1. On main deck, mooring/towing bits and other permanent appendages, waterblast to SSPC-SP 12 or sandblast to SSPC-SP 6

5.6.2. Clean the surface of the main deck, mooring/towing bits and other permanent appendages to completely remove particulate including dust, moisture, paint chips and blast grit.

5.6.3. Paint bare surfaces of main deck main deck, mooring/towing bits and other permanent appendages 1 coat of marine epoxy primer at 2 dry mils, 4 wet mils, or per the paint manufactures instructions regarding mil thickness per coat. Marine epoxy primer shall be compatible with follow-on coating systems (top coat).

5.6.4. Paint all walkway surfaces of main deck 1 coat of polyurethane based paint, durable, UV resistant with non skid or non skid additive at 1 to ½ gallons of additive to 5 gallons of paint.

Final paint color shall be in accordance with paint schedule.

5.6.5. Paint all other surfaces of the main deck, mooring/towing bits and other permanent appendages, 2 coats of polyurethane based paint in accordance with manufactures’ recommendations.

5.7. Preservation preparation and application.

5.7.1. The Contractor shall ensure that surface preparation is clean, oil free and meets the manufactures minimum profile requirements.

5.7.2. The Contractor shall inspect each paint coat to ensure that there are no pinholes, misses, skips, runs, sags, overspray, underspray, dryspray, or other visible paint defects that will affect the performance of the coating system. Repair all defects.

5.8. The coloring schedule shall be as follows:

AREA COLOR/FS595 NUMBER

Hull Exterior Black/17038 Hull Markings White/27880 Exterior Decks Lite Gray/36492 Exterior Deck Coaming Striping Red/11350 Deck Fittings Yellow/13591 Deckhouse Markings Black/17038

6. ULTRASONIC TESTING SCOPE

6.1. Scope. This work item describes the requirements for performing ultrasonic testing of structures or surfaces of ND-12 Barge.

6.2. Ultrasonic hull testing (UT). Perform an ultrasonic test to determine thickness of the barge hull. The test shall be compared to the original thickness of the shell plate areas being tested.

6.2.1. Test 15 areas (shots) in a uniform grid area of the underwater hull.

6.3. Report of UT. Provide a copy of the UT report to the COR and file a copy of the report in the contractor’s barge records.

6.4. Reporting format. The report shall depict a grid pattern.

7. STRUCTURAL REPAIRS SCOPE

7.1. Scope. This work item describes the requirements for structural repairs to ND-12 Barge.

7.2. Crack Repairs. The Contractor shall multi-pass weld repair up to 2 liner feet of cracks.

All repairs shall be in accordance with listed references.

7.2.1. Crack repairs include end drilling, V-grooving, thoroughly cleaning and welding.

Selected filler materials shall be as original.

7.2.2. Crack repairs include the removal and installation of minor interferences and gas freeing the surrounding area in accordance with applicable safety requirements.

7.2.3. Crack repairs include touching up painted surfaces to match existing.

7.3 Structural Inserts.

7.3.1. Structural Inserts in Shell Plate. The Contractor shall crop out and renew up to 5 square feet of hull or cabin plate based upon inspection of plating. Plating that has wastage as high as 25% shall be considered beyond useful limits and shall be replaced.

7.3.2. Structural inserts/ shell plate renewal to areas as required due to plate wastage. The Contractor shall crop out and install inserts/ shell plate renewal throughout the hull structure.

Insert up to a combined total of 5 square feet of shell plate. All repairs shall be in accordance with listed references.

7.3.3. Crop out and renewal shall include, removal of wasted shell plate material, thoroughly cleaning surrounding area, installing and welding insert with 100% weld to both sides of insert including welding to support structures or interferences. Selected shell plate material and filler materials shall be as original.

7.3.4. Insert repairs include the removal and installation of interferences, including fuel tanks and cleaning and gas freeing the surrounding area in accordance with applicable safety requirements.

7.3.5. Insert repairs include touching up painted surfaces to match existing.

7.4. Test Welds.

7.4.1. Perform Non Destructive testing (NDT) using the Liquid Penetrate method to all welds in accordance with applicable documents. Grind out, reweld and NDT all defects.

7.4.2. Perform air test to all shell plate welds. Grind out, reweld, NDT and air test all defects.

7.5. All shell plate repairs shall be inspected using Non Destructive Testing (NDT) liquid penetrate (PT) method. Following successful NDT, water hose test the repair area to confirm no leaks. Repair any found defects when conducting NDT or water hose inspection test.

8. RENEW ZINCS SCOPE

8.1. Scope. This work item describes the requirements to renew all zinc anodes on the hull of ND-12 Barges.

8.2. Renew zinc anodes and fasteners in the following locations

8.2.1. On stern, one (1), 5 in. X 10 in. welded to hull.

8.2.2. On side and bottom, four (4), 5 in. X 10 in. welded to hull.

8.3. Zinc anodes surfaces are not to be painted, nor are attachment points between the zinc and the fasteners to be painted. The surface of the hull beneath the zinc other than attachment point that are normally painted, shall be painted when the underwater hull or appendages is being painted

8.4. Before undocking inspect all underwater zincs to verify that covering and or overspray paint is removed.

9. PRESERVE BILGES AND INTERIOR SCOPE

9.1. Scope. This work item describes the requirements to preserve the bilges and interior compartments on the ND-12 Barges.

9.2. Painting general.

9.2.1. Material receipt inspection. The Contractor shall ensure that all coatings or coating products are delivered to the job site in original and unopened containers, with the following information: product name or number, manufacturer, batch number, date of manufacture, shelf life, product data sheet or ASTM F718 sheet, material safety data sheet (MSDS) and certificate of compliance (COC).

9.2.2. Material storage, handling, mixing, and application. The Contractor shall observe all paint manufacturers’ recommended procedures, as well as the good painting practice recommendations outlined in SSPC Manual, Volume 1, Chapter 5.1 (Paint Application), for all aspects involving storage, handling, mixing, and application of paint materials. Ensure that ambient conditions (dew point, surface and air temperature, and relative humidity) are within the parameters recommended by the applicable paint manufacturers, during application and curing evolutions.

9.2.3. Environmental protection compliance. The Contractor shall comply with all Federal, state and local public safety and environmental protection regulations applicable to the following issues: Handling and disposal of spent abrasives and wastes generated during paint removal procedures and protection of the air and waterways during blasting and coating application procedures.

9.2.4. Contrasting colors. All coats in multi-coat systems, including stripe coats, are to be applied in contrasting colors.

9.2.5. Stripe coating. After the primer coat has cured, brush-apply an un-thinned coat of the same primer paint over all edges, weld seams, cut-outs, foot/hand holds, non-flat mounting hardware, and areas of complex geometries; apply stripe coat at three mils wet film thickness (WFT), contrasting color, to extend outside the edge by approximately one inch. Stripe coating is not required for touch-up preservation.

9.2.6. Feathering. Where prepared surfaces interface with existing non-affected coated surfaces, feather the coated surfaces into the prepared areas, to provide a smooth transition between existing and new coatings.

9.3. Preserve bilges and interior compartments.

9.3.1. Clean bilges and interior compartments. The Contractor shall clean all bilges and interior compartments on the barge.

9.3.2. Remove all deck plates and bilge accesses from each bilge, void or compartment of the barge. Remove all minor interference to perform this task.

9.3.3. Remove bilge slops. Pump out and dispose of all oil and water. Disposal of oily waste shall be in accordance with State and Local regulation.

9.3.4. Clean by removing all residue of dirt, salt or other debris. Clean the surfaces to remove oils or other residual materials using biodegrade cleaners. Final cleaned surfaces shall be free of all dirt particulate.

9.3.5. Blast clean (sandblast) to standard SSPC-SP 6 the entire compartment. After completion of sandblasting, remove all sandblast grit and paint grit and wipe compartment free of all loose material. The compartment shall be clean in its entirety prior to paint application.

9.3.6. Paint bilges, voids and compartments, including other normally painted appendages with 1 coat of light gray marine grade epoxy anticorrosive to the mil thickness as specified by the manufacturer. Stripe coat bilges, voids and compartments, including other normally painted appendages with 1 coat of gray marine grade epoxy anticorrosive to the mil thickness as specified by the manufacturer. Paint bilges, voids and compartments, including other normally painted appendages, including other normally painted appendages within the compartment with 1 coat of marine grade epoxy anticorrosive to the mil thickness as specified by the manufacturer, with color as specified below.

9.3.7. Reinstall interferences and all deck plates and bilge accesses for each compartment, bilge or void. All fastened deck plates shall have fasteners installed in each available fastener location.

9.4. Inspect all interior spaces for cleanliness, correct any noted discrepancy.

9.5. The coloring schedule shall be as follows:

AREA COLOR/FS595 NUMBER

All Bulkheads and Overheads Light Gray