SOW Section C Rev1.pdf

SECTION C

TECHNICAL SPECIFICATIONS

PART I – TECHNICAL PROVISIONS

TP-1 SCOPE OF WORK

In accordance with the Master Ship Repair Agreement, for Repair and Alteration of Vessels (MSRA), the Contractor shall furnish all management, supervision, labor, subcontracting services of manufacturer's representatives and all facilities, utilities, equipment, tools, lubricants, fuels, materials and articles (excluding Government furnished property) necessary to fully execute the work items specified herein.

The contractor shall furnish all engineering, design, labor, services, equipment, parts and materials and perform the drydocking and repairs to the Dredge McFARLAND listed in this contract.

Drawings, equipment or materials to be furnished by the Government will be specifically listed in the appropriate contract clause. Unless specifically listed, the contractor shall assume no drawings, equipment or materials will be furnished by the Government and shall bid accordingly.

TP-2 PRINCIPAL FEATURES

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

The dimensions of the hull are:

Length without Boom Overhang 300 feet – 0 inches Length with Boom Overhang 319 feet – 8 inches Length Between Perpendiculars 284 feet – 0 inches Beam Molded 72 feet – 0 inches Depth Amidships, molded 33 feet – 0 inches Draft Aft 19 feet – 0 inches Draft Forward 16 feet – 3 inches Registered Gross Tonnage 6,036 long tons Displacement Tonnage 9,720 long tons Lightship Displacement 4,007 long tons Fuel and Water 400 long tons (approx.)

NOTE – Draft conditions shown above reflect vessel in its current state. It is expected that vessel will arrive at the contractor’s facility with these drafts up to - 1’. Prior to departure, and after taking on fuel, lubricating oil and potable water, drafts will be up to + 2’.

TP-3 DEFINITIONS

The following definitions are applicable to phrases and acronyms used throughout this contract:

Contracting Officer (KO) - a person with authority to enter, administer, and/or terminate contracts and make related determinations and findings.

Contracting Officer's Representative (COR) - a member of the Philadelphia District contract management and quality assurance team authorized by the Contracting Officer to perform administrative and managerial duties. A copy of the COR's authority letter is furnished to the Contractor upon award of the contract.

Government Technical Representative (GTR) – Same duties as COR.

Government -Furnished Equipment (GFE) – Equipment, materials, parts, supplies or components furnished by the Government for installation on the vessel.

USACE – Acronym for the U.S. Army Corps of Engineers.

PSBr – Acronym for the Physical Support Branch of the Philadelphia District Corps of Engineers.

QC – Quality Control. Quality Control is a function of the contractor. See Clause E-3.

QA – Quality Assurance. Quality Assurance is a function of the Government.

ABS – Acronym for the American Bureau of Shipping.

USCG – Acronym for the U.S. Coast Guard.

USN – Acronym for the U.S. Navy.

CFR – Acronym for the Code of Federal Regulations.

ANSI – Acronym for the American National Standards Institute.

OSHA – Acronym for the Occupational Safety and Health Administration.

NFPA – Acronym for the National Fire Protection Association.

NIOSH – Acronym for the National Institute of Occupational Safety and Health.

EPA – Acronym for the Environmental Protection Agency.

AHA – Acronym for Activity Hazard Analysis.

SSHO – Acronym for Site Safety and Health Officer

TP-4 STANDARDS

All design, engineering, modifications and repairs to the vessel shall be performed in accordance with the criteria set forth in the latest issues of the following standards or regulations:

U.S. Army Corps of Engineers, Publication No. EM 385-1-1, “Safety and Health Requirements Manual”.

Online at: http://www.usace.army.mil/publications/eng-manuals/em385-1-1/toc.htm

NOTE – The latest edition of EM385-1-1 is dated 30 November 2014.

http://www.usace.army.mil/publications/eng-manuals/em385-1-1/toc.htm

USCG, Navigation Rules - Inland/International.

Code of Federal Regulations, Title 29, Part 1900, Occupational Safety and Health Administration.

Code of Federal Regulations, Title 29, Part 1900, Subpart 1915, Occupational Safety and Health Administration, “Shipyard Industry”, OSHA Publication 2268.

Code of Federal Regulations, Title 33, Navigation and Navigable Waters.

Code of Federal Regulations, Title 46, Shipping.

• Parts 41-69 (Subchapters E-G)

• Parts 90-105 (Subchapter I)

• Parts 110-113 (Subchapter J)

• Parts 159-165 (Subchapter P)

• Parts 170-174 (Subchapter S)

American Bureau of Shipping, “ABS Rules for Building and Classing Steel Vessels”

Institute of Electrical and Electronic Engineers Standards, Publication No. IEEE-45 – “Recommended Practice for Electrical Installation on Shipboard”

Illuminating Engineering Society, “Recommended Practice for Marine Lighting”

National Electric Code (NEC).

National Electrical Manufacturer Association (NEMA).

National Fire Protection Association (NFPA).

Note that these standards apply only to the engineering, design and workmanship performed by the contractor as part of this contract including removals, accesses and other work performed by the contractor incidental to the work required by the contract.

All other standards not listed above but that are incorporated by reference under the aforementioned standards shall also apply to the work being performed under this contract.

TP-5 CERTIFICATION AND CLASSIFICATION

The vessel has an USCG Certificate of Inspection, Official No. 7739856, which expires on 24 February 2022. The Drydock Examination is due 30 November 2021.

The vessel has an ABS Load Line Certificate, No. 6703228-3166283-001, which expires on 22 November 2021. McFARLAND is not a classed vessel.

It is the intent of the Government to renew both certificates during this availability, and to perform and complete all repairs, inspections and tests necessary for renewal.

The Government will contract with the ABS to perform all required inspections and will inform the USCG that their services are required for inspections.

When such inspections are performed, the crew will perform them in the presence of the USCG Inspector or ABS Surveyor, unless otherwise specified in a contract Clause. The Government will coordinate all inspections with the contractor to minimize any impact on the contractor’s work schedule.

The USCG may issue CG835 violations that require correction prior to the departure of the vessel from the contractor’s facility. Correction of these may require the contractor to perform repairs on an expedited basis to avoid delays to both the contractor’s and the Government’s work schedules. Payment for such corrections will be handled under a Modification of Contract or via a Miscellaneous Maintenance Line Item M-901.

The contractor is responsible for coordinating all ABS and USCG inspections on their work as specified, and shall provide the services of a QA representative to accompany the ABS and/or USCG whenever they are present on the vessel for inspection of contractor-performed repairs and tests.

The cost of the ABS Surveyor to witness additional inspections of contractor-performed work items that previously failed, or were not properly scheduled, shall be borne by the contractor and reimbursed to the Government via 2-Way Memorandum.

Any tests that require attendance of either the ABS and/or USCG that proceed without their attendance shall be performed again, at no additional cost or delay to the Government.

TP-6 INSPECTIONS, TESTING AND TRIALS

GENERAL

The contractor shall provide and maintain inspection systems covering the work specified in this contract in accordance with the requirements.

The work will be conducted under the general direction of the Physical Support Branch, Operations Division, Philadelphia District, and is subject to inspection to ensure compliance with the terms of the contract.

The presence or absence of an inspector does not relieve the contractor from any requirements of the contract.

The contractor shall perform Tests, Trials and other operational performance demonstrations as required in Clause E-1, “INSPECTION”, and Clause E-3, “QUALITY ASSURANCE AND CONTROL”, of this contract.

The contractor shall provide reasonable advance notice (no less than 1 full working day) to the COR prior to any testing or trials. If the COR, after having received such notification, is not present at the designated time and place for the Inspection or test, the contractor shall reschedule the inspection or test.

The COR retains the right to have a designated representative, including crewmembers, attend and witness the test without prior notification to the contractor.

Any tests or inspections for which the contractor does not provide advance notice, and due to such cannot be attended, shall be rescheduled at no additional cost or delay to the Government.

Untimely notification will result in postponement or repetition of the test at no additional cost to the Government.

Lack of notification will require retesting at no additional cost to the Government.

All delays caused by improper notification are the responsibility and to the account of the contractor.

The contractor shall furnish a competent and authorized individual to witness and document the results of all inspections or tests.

The contractor is responsible for notifying and coordinating all tests with the USCG, ABS and manufacturers’ representatives where it is required in the specifications. Testing shall be in accordance with the USCG, ABS and manufacturer’s requirements unless noted within the repair Line Item itself.

All tests shall be documented and include the information required in Clause E-3, “QUALITY ASSURANCE AND CONTROL”. This test documentation shall be signed by all personnel present at the test and be presented to the COR within 24 hours of the completion of the test.

All watertight, oiltight and weather tight work shall be tested for tightness prior to the final coat of paint.

The contractor may elect to primer-coat the surface to prevent rust from forming, however any paint damaged by the testing shall be restored to original at no additional cost to the Government.

Testing shall be in accordance with “Rules for Building and Classing Steel Vessels”, published by the ABS and CFR 46, “Shipping”. Testing procedures, other than hydrostatic testing, shall be submitted to the COR for approval and shall already be approved by the ABS and USCG. Submittals shall include complete particulars on the testing procedure(s) proposed and, if air testing is used, the method of controlling the air pressure. Water used for testing shall be potable quality to prevent contamination of the compartments and piping.

Any pneumatic, hydro and/or hydraulic testing shall be performed with double gage and double relief valve protection to prevent over-pressurization of the area, component or equipment being tested.

CHECKPOINTS

The presence of the word “CHECKPOINT” in these specifications shall be interpreted by the contractor as a stopping point, beyond which he/she shall not proceed until the required inspection, test, measurement, etc., is completed, documented in writing and submitted to the COR.

All CHECKPOINTs shall be documented on a Condition Report, which shall include a copy of the signed Inspection ticket.

Rework and any delays/disruptions due to a missed, failed or improperly scheduled CHECKPOINT is the sole responsibility of the contractor.

The contractor shall provide advance notice (no less than 24 hours) to the COR prior to the arrival at a CHECKPOINT. The results of the CHECKPOINT inspection or test shall be documented as required above.

The contractor shall not be relieved of responsibility for the proper performance of all work where a CHECKPOINT is specified.

The end of each specification Line Item shall be regarded as a CHECKPOINT, whether stated or not.

Upon completion of the work listed in each specific repair Line Item, the contractor shall provide, in Condition Report format, a list of all completed CHECKPOINTs.

DOCK TRIALS AND DREDGING SEA TRIALS

Each of the Line Items shall be individually inspected and tested as specified as part of the Provisional Acceptance.

Dock and Dredging Sea Trials shall be performed as part of the Provisional and Final Acceptances.

The trials shall be conducted in the presence of the COR. The crew will operate the vessel and its machinery and equipment during the Dock Trials and Dredging Sea Trials.

The Government will furnish all fuels and lubricants, except where specified in the Line Items.

The contractor shall provide land and water transportation to and from the sea trial site to the contractor’s facility for the COR staff and all contractor personnel, the cost of which shall be included in the Drydocking Line Item, No. H-101.

The cost of performing the sea trials and dock trials shall be included in the cost of the respective Line Items.

The contractor shall provide the Government with 48 hours advance notice of when it will be ready to start both trial periods.

DOCK TRIAL REQUIREMENTS

Upon completion of all Line Items, a complete dock trial shall be performed by the contractor on all items worked on by the contractor and any related systems directly impacted by the work. The contractor shall estimate on a minimum of three days to complete this trial and provide this amount of time in the schedule without delaying overall completion of the work.

NOTE – The three days shown above does not include the days required by the shipyard to return fuels and lubricants. The contractor shall also allow the Government, and build into the schedule, one day for the Government to provide fuel and lubricants to the vessel via contract separate from this contract.

NOTE – The contractor shall host a Dock Trial Conference the morning after undocking to go over all testing requirements, work to be performed, etc.

The dock trial period includes, but is not limited to, startup and running of the main propulsion, dredge, and ships service generator engines, and dredge pumps; running of the bow thruster, pressurization of the controllable pitch propulsion system, operation of the hopper door operating mechanisms, and operation of the vessel’s hydraulic and electrical systems.

The contractor shall have sufficient personnel aboard to: check for leaks on all watertight and oiltight work performed by contractor personnel and to adjust and/or correct same items to make leak-free; and adjust machinery that was repaired or removed by the contractor to run within normal pressure and temperature ranges as defined by the manufacturer.

DREDGING SEA TRIAL REQUIREMENTS

Upon completion of the dock trial, a sea trial using seawater pumped through the dredging system test shall be performed in an area in the proximity of the contractor’s yard which will be designated by the COR. The contractor shall estimate on 12 hours to complete this trial and shall include the cost of all contractor and subcontractor personnel, including manufacturer representatives, in the cost of the respective specification Line Item. The contractor shall also provide this amount of time in the schedule without delaying overall completion of the work.

NOTE – The 12-hour time requirement listed above does not include transit time to and from the contractor’s facility.

The dredging sea trial period includes, but is not limited to, testing of the dragarm winches by lowering, seating and raising the dragarms; full operation of all engines, reduction gear, controllable pitch propulsion system and the bow thruster; and full operation of the dredge pumps and cycling of all dredging valves. All systems, components and machinery repaired or removed by the contractor shall be tested during this period.

The contractor shall have sufficient personnel aboard to: check for leaks on all watertight and oiltight work performed by contractor personnel and to adjust and/or correct same items to make leak-free; and adjust machinery to run within normal pressure and temperature ranges as defined by the manufacturer.

Upon successful completion of the sea trail, the vessel will be Finally Accepted and will depart for its next dredging assignment.

DOCKING AND UNDOCKING INSPECTION AND OPERATING REQUIREMENTS

The contractor shall perform an inspection of the drydock immediately prior to the docking and the undocking of the vessel. The Contractor, Dockmaster, Captain and the COR shall jointly perform these inspections in accordance with the requirements listed under Line Item H-101. All deficiencies must be corrected to the satisfaction of all concerned prior to the docking and/or undocking sequences commencing.

Transfer of any fluid while on drydock, movement of any vessel equipment and removal and reinstallation of any component of the vessel as part of the repairs listed herein shall be coordinated with the Dock Master in order to maintain stability of the vessel while in the drydock.

TP-7 WORKMANSHIP & CONSTRUCTION STANDARDS

A. GENERAL REQUIREMENTS FOR ACCESS

After careful planning and subject to the approval of the COR, the Contractor may cut and/or remove plating or framing members from the vessel for access to machinery, piping, wiring and equipment.

Wherever possible, the contractor shall identify and use previously made accesses. Under the same conditions, the Contractor may also remove piping, wiring, fixtures, fittings, etc., for access and clearance to perform required work.

At the completion of required work, all removals shall be restored. Replacement shall consist of returning the removed equipment, piping, wiring, structural members and plating to their original locations and reinstallation.

All accesses shall be submitted to the COR in writing, including a drawing with the approximate size and location of the accesses, on a Condition Report for review and approval.

The cost for all removals and reinstallations shall be included in the cost of the respective Line Item.

Where parts, components or equipment are damaged as a result of the removals, the contractor shall replace them in kind at no additional cost to the Government. Fit and finish shall be restored and damaged paint shall be renewed at no additional cost to the Government.

Installations shall be in accordance with the original construction drawings or the referenced standards (Refer to TP-3).

All removed equipment shall be tested as part of the Tests and Trials required in TP-6 listed above.

Any removals for access shall be temporarily supported if lack of such support could cause failure or damage to adjacent systems, distortion of adjacent framing or plating, or result in a safety hazard.

The contractor shall maintain a hazard-free access in and out of any space at all times throughout the availability of the vessel.

Any temporary openings in the deck or any other area that may constitute a fall hazard shall be railed and combed off. Horizontal openings, such as those on the deck, shall be protected with contractor-furnished temporary combing and safety netting around the entire perimeter of the deck opening when the opening is not in use. The cost of providing this protection shall be included in the cost of the repair Line Item.

B. GENERAL REQUIREMENTS FOR HULL AND STRUCTURAL WORK

All new hull plating and shapes shall be fabricated from ABS Structural Steel or ASTM A36, “Specification for Structural Steel”.

Due regard shall be paid to details in both the design and construction of all new and/or modified structures, to prevent structural discontinuities and other stress concentrations.

Where openings must be provided in the structure to gain access internally, the contractor shall provide adequate compensation to maintain the original structural integrity while the opening is present. All compensation shall be approved by the ABS.

Openings created by permanent removal or addition of piping, wiring or other materials shall be closed by means of watertight penetrations or insert plates of equal thickness flush-welded to the bulkheads.

All new welds that are fully accessible shall be ground flush and smooth.

Sections of stiffeners, beams, girders, etc., shall be welded to the bulkheads to maintain continuity of structure.

Openings cut into decks and bulkheads shall be adequately compensated in accordance with ABS requirements to maintain original strength, unless the opening is cut in such a manner that it can be rewelded to existing framing members.

C. GENERAL REQUIREMENTS FOR FOUNDATIONS AND SUPPORTS

Suitable foundations shall be provided under all new units of machinery. Foundations shall be built up of plates and structural shapes to the dimensions required for satisfactory support, and shall assure rigidity, freedom from vibration and designed for secure containment of the equipment in event of crash stops. Foundations shall be constructed to the machinery manufacturer’s requirements, unless otherwise specified in the repair Line Item.

Where dripping water or oil can be expected, the top plates of foundations shall project beyond the edges of the bedplates or bases of units being supported and formed into spill containment/drip pans. Flat bars welded around the edges of the top plates, or combing welded around the deck near the foundation, may be used to retain any leakage. Valved drains shall be provided at the ends or corners of the pans to facilitate fluid removal or recovery.

Foundations shall extend beyond the equipment fore and aft or transversely to distribute the load and to avoid excessive weight concentrations.

Doublers, insert plates, girders, headers and stanchions shall be fitted and under-deck framing shall be reinforced to support units mounted on deck.

D. GENERAL REQUIREMENTS FOR MATERIALS

All materials provided by the contractor shall be suitable for marine applications and shall be subject to approval of the COR prior to installation.

Abrasion Resistant Steel, where required, shall be T-1 AR steel, Type A, Grade 321HB, 321 Brinell Hardness.

Stainless steel, where required, shall be AISI 316 stainless steel.

All fasteners shall be installed using non-metallic gasket material when placed against any dissimilar surface.

All scrap material removed by the contractor that becomes the property of the contractor shall have its scrap value reflected in the bid price submitted by the contractor. The cost of removing, handling, transporting and disposing of all scrap material shall be included in the Line Item in which it is being scrapped.

E. GENERAL REQUIREMENTS FOR PIPING

All piping, valves and fittings shall comply with material specifications of the design standards for that particular service.

New piping added to or replacing an existing system shall duplicate that system, both in size, material, and routing, unless otherwise specified.

New piping, where installed in coordination with new equipment or machinery, shall be installed in a manner that does not adversely impact personnel with tripping or overhead hazards.

New fuel oil, lube oil, or hydraulic piping shall be steel or black iron, Schedule 80, to match existing pipe material. Black iron pipe shall be pickled prior to installation.

New raw, jacket or sanitary water piping shall be with 90-10 copper-nickel, Class 200. New drain piping shall be replaced in kind.

Piping shall be led directly as per existing application. The finished installation shall include the pipe, valves, unions, elbows, reducers, tees and fittings.

Unions and flanges shall be provided to facilitate installation and subsequent removal. High- pressure flanges shall be used where originally provided.

Flexible connections to machinery components shall be provided where vibration may be anticipated.

Piping shall not pass over switchboards and be kept clear of switchgear, wiring, etc. All work shall be targeted and templated from the vessel.

Piping shall be secured by supports and hangers so as to avoid excessive strains; avoid the weight of the piping being transmitted to valves and fittings; minimize the effects of vibration, shock, pitching and rolling of the vessel; and permit proper thermal expansion and contraction.

Provision may be made for expansion and contraction by changes in direction of pipe runs or by use of expansion bends, joints, loops or offsets.

All burrs shall be removed from the ends of all piping after any cutting or threading. Pipe ends shall be dressed with a reamer before installation.

A brass or aluminum label plate shall be attached to the hand-wheel of all new contractor- furnished valves to indicate its function. Wording to be provided by COR.

New valves to go into seawater service shall be stainless steel or bronze and have a pressure rating appropriate for that service.

New installations of valves and operating mechanism shall be approved by the COR prior to installation.

Where pipes are carried through watertight bulkheads, decks or tank tops, the watertight integrity of the structure shall be maintained.

Heat - sensitive materials shall not be used in piping systems that penetrate watertight subdivisions.

Where overboard discharge lines or valves are attached to the inside of the hull, the hull shall be reinforced to maintain the original strength and integrity.

Black iron pipe penetrations through watertight bulkheads and decks shall be accomplished by welding pipe to a sleeve that is then welded to bulkhead or deck.

All fastenings used to connect valves to piping connections shall be of stainless steel, unless otherwise specified in the Line Item.

Where dissimilar metals occur, the contractor shall insulate to prevent electrolytic action. Any new piping shall be color-coated to match existing scheme on vessel.

F. GENERAL REQUIREMENTS FOR MACHINERY SYSTEMS

Where new machinery and equipment is to be installed, or when existing machinery and equipment is relocated, the contractor shall mount the items on foundations as specified elsewhere herein.

All fastenings, bolts, (fitted or otherwise) studs and nuts shall be installed using anti-seize compound.

Any defective or missing fasteners, washers, gaskets, grommets on items worked by the contractor shall be replaced with material that matches existing performance standards.

Bottoming taps shall be used wherever new holes are drilled and tapped.

G. GENERAL REQUIREMENTS FOR ELECTRICAL SYSTEMS

All electrical installations as set forth elsewhere in these specifications shall be in compliance with the referenced rules, regulations and standards, especially with regard to ambient and working temperature requirements.

Electric cable shall be either commercial marine type cable or armored cable. All new cable installed on weather decks or where exposed to seawater spray shall be bronze or stainless steel armored. All new cables installed inside shall be bronze or aluminum armored. Electric cable shall be capable of handling the required amperage.

Electrical installations shall be such so as to eliminate the possibility of mechanical injury or damage from the accumulation of dust, oil, vapors, steam, dripping liquids, etc.

New cable runs shall be supported at intervals of no more than 18” apart where vertical and 14” apart where horizontal. Straps, hangers, and standoffs shall be aluminum with stainless steel fasteners.

Plastic type straps are permitted only behind sheathing/paneling. No cable runs will be permitted below the deck-plates, except for bilge pump wiring. Cable penetrations, where required to be watertight, shall have approved kick-plates, stuffing tubes, etc., and shall be filled with duct seal, or pitch where originally used.

All electrical supplies and/or installations to meet CFR 46, as well as all applicable NEMA, IEEE and ANSI standards.

H. GENERAL REQUIREMENTS FOR HOT WORK

Prior to commencing any hot work, the contractor shall take steps necessary to remove any flammable or combustible material from the affected area.

The contractor shall supply all personnel performing hot work operations with suitable personal protective equipment (PPE) to safely complete all hot work and to protect personnel from fumes, sparks, bright light, and noise resulting from hot work operations.

The contractor shall also supply and post permits stating that spaces where hot work is being performed are safe for hot work to be performed.

The contractor shall provide at least l fire watch for no more than 4 welders and/or burners/arc- gougers and have line of sight contact with these operations at all times. Provide at least two 20# ABC rated extinguishers for normal "Hot Work". The extinguishers must be current inspection tagged and contain an approved safety pin and tamper resistant seal. It is also mandatory to have a designated FIRE WATCH for any "Hot Work" done at this activity. The Fire Watch must be trained in accordance with NFPA 51B and remain on-site for a minimum of one hour after completion of the task or as specified on the hot work permit. If work is being performed on a bulkhead and/or a deck, a fire watch shall be posted on both sides of the bulkhead and/or deck, with the same latent fire hazard monitoring to apply on both sides of the bulkhead and/or deck.

NOTE – If no fire watch is present, or equipment is not present, lacks certification or is incorrect for the job, hot work shall be stopped, and all deficiencies corrected immediately. Any delays/disruptions due to this are the sole responsibility of the contractor. Such work may be stopped by a Deck Officer of the ship and/or the COR.

While contractor personnel are performing firewatch services, they shall have no additional responsibilities and no additional work to perform during this time.

I. GENERAL REQUIREMENTS FOR WELDING

Only welders who have successfully passed the qualifications test of the ABS, the USN or the USCG for steel welding shall do all welding under this contract.

The contractor shall bear the expense of conducting these tests and shall certify by name to the COR those welders who have successfully passed the prescribed tests. The contractor shall require any welder to repeat these tests when, in the opinion of the COR or his appointed representative, the work of the welder indicates a reasonable doubt of his efficiency. In such cases the welder shall be recertified as above.

NOTE – All welder certifications shall be submitted to the COR at the start of the repair period. This includes any subcontracted welders.

The electrodes used throughout the work shall be suitable for use with the parent metal at each weld.

Electrodes shall be received on the job in unbroken packages bearing the manufacturers' label or be otherwise marked.

Welding procedures, where welding to a casting or a forging, shall be submitted to the COR for approval prior to welding. The procedure shall cover the type of weld process, welding electrode, pre-heat, welding sequence and stress relief required.

All welding shall be smooth, tight and free from undercuts, porosity, craters and gas inclusions.

Shell and deck butts and flush seams shall be back chipped or gouged to sound metal from the closing side before welding.

All sharp and/or rough edges shall be ground smooth and all weld splatter shall be removed.

All welds for temporary dogs used during modifications or to secure plate in place while welding shall be ground flush with the surrounding metal.

Assembly of all welded joints before welding shall be such as to secure proper gaps in butt welds and metal contact in fillet welds. Welding shall not be used to close openings larger than stipulated for each plate thickness by the ABS.

Welding procedures, as to direction, length, number, temperature and sequence, shall be carefully planned to minimize distortion and locked-in stresses.

Any welding to or of hull shell plating, watertight and/or oil-tight bulkheads shall be inspected and approved by the ABS and the USCG. This includes the removal of existing plate, examination of the remaining surrounding plate, examination of the fit-up, examination of the first weld, examination of the back gouge, and examination of the final welding.

The contractor shall maintain a log of all welders who worked on the vessel throughout the repair period, their certification and the repair Line Items on which they worked. This log shall be made accessible to the COR at any time during normal business hours.

Testing of welds, where required, shall be addressed under the individual repair Line Items.

J. GENERAL REQUIREMENTS FOR WORKMANSHIP

All parts of the work intended to join or bear upon others shall be cut or trimmed to fit neatly.

All faying surfaces shall be clean and smooth before bolting up. Shims or liners shall not be used for the purpose of overcoming a bad fit.

Ends of outstanding flanges shall be cropped.

Lightening holes may be punched, sawn or sheared and all burrs and cutting slag shall be removed.

Weld spatter shall be removed from all plating and stiffeners.

All mounting holes shall be drilled and reamed. Holes in members having sharp curvature shall be avoided whenever possible.ll frames and longitudinals shall have limber holes and/or snipes of adequate size to allow water to flow to the lowest point of each compartment and to allow air to escape.

All joints or areas of connection between dissimilar metals shall be properly insulated by gasket material.

All fasteners used for attaching dissimilar materials shall be made of AISI type 304 or type 316 series stainless steel.

Marring or damaging of previously acceptable construction shall be cause for rejection.

Work will be stopped, and any delays/disruptions and costs associated with them will be sole responsibility of the contractor, if the Scope of Work in the Line Items is not being followed by the contractor, unless approved by the COR due to conditions unforeseen at the time the contract was awarded.

All foremen and leadmen shall be given full access to the Contract and the full Scope of Work for any work being performed under this contract.

K. GENERAL REQUIREMENTS FOR PAINTING

The contractor shall cover all zinc anodes, transducers, draft indicators, windows, propellers hubs, propellers, propeller shafts, shaft bearings, rudders stocks, hopper door bearings, bow thruster and other hull fixtures, deck equipment or fixtures and ventilation inlets that could be damaged or introduce contamination into the vessel from the high pressure water blasting and or painting of the entire hull of the vessel. This includes installing blanks in way of removed valves to prevent contamination from entering vessel.

When performing blasting or painting operations on portions of the hull, the contractor shall protect any of the aforementioned equipment or fittings that may be damaged by the high pressure water blasting and or painting. The contractor is responsible for repairing or replacing any equipment or fittings not properly protected.

COR approval of protection is required before starting any high pressure water blasting. A daily walk-through with the painting foreman/superintendent prior to work starting shall be performed to ensure that all area are protected and that any damaged or missing protection is restored prior to the start of any sandblasting or painting.

The contractor shall provide adequate dermal and respiratory protection for all blasters and painters.

The contractor shall close any areas until vapors from solvents, paints, and curing coatings have been adequately ventilated and dispersed. During any painting operations, and while paints are curing, the Competent Person shall restrict all hot work in the area.

All areas contaminated with grease, oil, lubricants or other foreign matter shall be cleaned with solvent.

After removal of contaminates clean the affected areas in accordance with the paint system manufacturers recommendations.

Unless otherwise specified, all high pressure water blasting shall be performed in accordance with WJ-2 surface finish requirements of Steel Structures Painting Council Specification No. SSPC-SP-12 to remove all rust, old paint, mill scale, rubber, and remaining oil, grease, dirt and foreign matter. No more than flash rust, slight shadows, streaks or discoloration shall remain. Any surface preparation required in this package shall be to this Specification unless stated otherwise and shall meet the paint manufacturer’s requirements.

Any new plate to be installed that comes with a preconstruction primer from the plate manufacturer or supplier shall be prepared to a WJ-4 surface finish requirement in accordance with Steel Structures Painting Council Specification No. SSPC-SP-12.

Defective shell plate discovered during blasting shall be reported to the COR immediately.

Colors specified shall conform to the color spots shown on Federal Standard No. 595, COLORS. All coatings shall be in accordance with all current EPA regulations and guidelines and must receive prior approval by the COR. The Contractor shall provide material safety data sheets for each paint used.

Colors shall conform to Federal Standard 595, in accordance with the following schedule.

AREA COLOR AND FS595 NUMBER

Hull Exterior Black/17038 Deckhouse Exterior Old Ivory/13695 Decks & Housetop Deck Red/10076 Hull & Deckhouse Interior White/27880 Deck Fittings Yellow/13655 Hull Markings White/27880

Stacks Black/17038 Exterior Deck Coaming Striping Red/11136 Handrails & Stair Rails Black/17038 Antifouling 1st Coat Manufacturer Contrasting Color Antifouling 2nd Coat Manufacturer’s Red

The components of all paints shall be ground and mixed to produce a viscous, smooth, homogeneous, lump-free mixture. All paint, when applied, shall provide a satisfactory film and a smooth, even surface with a dry film thickness in accordance with the paint manufacturer's requirements.

Before purchasing or applying paint, the contractor shall submit to the KO the name of the manufacturer together with supporting evidence that such paint conforms to the specifications.

All paints used in the performance of this work shall be within the manufacturer’s specified closed container and “pot” shelf life. All paints/coatings shall be from the same manufacturer.

All coatings shall be delivered to the worksite in sealed containers. Each container shall show: name of manufacturer, name of paint, formula of paint, batch number, and date of manufacture (not coded).

The paint system shall be applied in strict accordance with the manufacturer's guidelines and recommendations, including time between coats, proper application equipment, thinning and disposal of excess paint and thinner and cleaning of equipment.

The Contractor shall provide the services of the paint manufacturer’s authorized representative to witness and verify in writing the surface preparation and paint application. Representative does not have to be present during entire time preparation and/or painting is being performed.

At the conclusion of the repairs, the paint representative shall provide the COR with a written, signed document clearly stating that the surface preparation, weather conditions, coating application and coating thickness for each area were inspected and meet the manufacturer's requirements for the coatings used. The cost of providing this representative shall be included in the Hull Painting Line Item.

All painting of interior and exterior hull surfaces below the main deck shall be completed and accepted by the COR prior to refloating the vessel.

The contractor shall furnish the COR with a thickness gauge, or have made available, suitable for use on steel to verify proper wet/dry film paint thickness on areas that have been coated from a bare surface.

All over spray of any new paint onto existing finished surfaces shall be removed and all surface repaired to original condition.

If any other vessels on drydock and/or the piers located next to the drydock are being sand- or grit-blasted, or if prevailing winds can or do carry sandblast sand or grit, or other contaminants such as wheat/corn dust, iron ore dust, coal dust, wood dust, etc., that may enter the vessel’s ventilation and intake systems, the contractor shall seal off all ventilation, air conditioning, engine room, generator room, exhaust, tank and fan vents and openings, and all other intake or exhaust venting/piping in addition to the protection listed above. The contractor shall also cover the main propulsion engines, dredge pump engines, ship’s service generators, dredge pump motors, reduction gear cases, oil distribution boxes, deck mooring winches, derrick winches, launch davit winches, emergency diesel generator and all switchboards with heavy-duty clear plastic sheeting prior to any sand- or grit-blasting in the vicinity listed above, or immediately upon vessel arrival if such work is in progress, whichever comes first. This same level of protection is required should sand- or grit-blasting be required on the vessel itself, however it may be limited to the area being blasted as long as that area is isolated from the remainder of the vessel and all components, machinery and equipment located within the confines of that space are suitably protected in accordance with the aforementioned requirements. Should sand- or grit blasting be required, it shall be performed to the Commercial Blast requirements under Steel Structures Painting Council Specification No. SSPC-SP-6. All protection to be inspected and approved by the COR prior to commencement of blasting operations.

The hull surface from the waterline/deep load line to the keel is coated with 2 primer coats of Ameron 385 and 2 coats of Ameron ABC-3 antifoulant. This coating system was installed in 2019.

The hull surface from the waterline/deep load line to the rail/top of the bulwarks is coated with 2 primer coats of Ameron 385 and 1 coat of Ameron 450. Where not specified in the Line Item itself, paint any areas of the vessel that are disturbed or damaged during the performance of these repairs in accordance with the following schedule:

Hull and Deckhouse Interior - All new or disturbed steel surfaces shall be coated with a base coat of 5 mils DFT minimum. This includes interiors of all tanks other than the fuel oil and potable water.

All new or disturbed surfaces except surfaces to be covered with sheathing shall be over coated (over the base coat) with a topcoat of 3 mils DFT minimum.

Hull Exterior - All new or disturbed steel surfaces shall be coated with a base coat at 8 mils DFT minimum.

All new or disturbed surfaces shall be over coated (over the base coat) with barrier coat at 5 mils DFT minimum (not including base coat).

Where the barrier coat does not satisfy the specified color requirement, top coating shall be provided of the appropriate color.

Where a “sealer” or other finishing coat is required to prevent fading and chalking of the system, it shall be provided and applied in accordance with the manufacturer’s directions.

Underwater surfaces shall be over coated with antifouling coating (in contrasting colors). As paint thickness recommendations vary between manufacturers, total mils DFT shall be as required by the system manufacturer.

Lettering, numerals, bitts, cleats, kevels, vents, fills and spill containments shall be over coated (over the barrier coat) with topcoat at 4 mils DFT minimum.

Non-Hull Exterior Surfaces - All new or disturbed steel surfaces except for deck areas shall be coated with base coat at 8 mils DFT minimum.

All new or disturbed steel surfaces shall be over coated (over the base coat) with topcoat at 4 mils DFT minimum.

On all exterior deck areas, both the under coat (barrier coat for hull and base coat for decks other than hull) and the topcoat shall be colored Deck Red. Aluminum oxide grit shall be added to the final coat to form a non-skid walking surface in accordance with EM385-1-1 requirements.

The coating system to be used is composed of the following coating types:

• Surface Tolerant Epoxy Base Coat

• High Build Epoxy Barrier Coat

• Fade Resistant Epoxy Top Coat

• Antifouling coating

The contractor shall develop a Paint Schedule and submit it to the COR for approval immediately upon arrival of the vessel at the contractor’s facility.

Coating systems from PPG Ameron have been pre-qualified for the required system. The specific coating designations to be used are as follows:

SURFACE TOLERANT BASE COATS:

• PPG Amercoat 385

HIGH BUILD EPOXY BARRIER COATS:

• PPG Amercoat 385

FADE RESISTANT POLYURETHANE COATING:

• PPG Amercoat 450

ANTIFOULING COATING:

• PPG Amercoat ABC3

L. GENERAL REQUIREMENTS FOR DISPOSAL OF FLUIDS

All fluids, including, but not limited to, diesel fuel, lubricating oil, hydraulic fluid, antifreeze/coolant, bilge wastes, raw or partially treated sewage, “gray” water, battery acid, penetrating and cutting oils, dye penetrants, paints, paint thinners, and preservative coatings removed from the vessel or generated by the contractor in the course of performing the required work shall be disposed of by the contractor in accordance with all Federal, State, Regional and Local laws, rules, regulations, and guidelines for the disposal of hazardous materials.

This also applies to any rags, clothing, equipment or other materials exposed to or contaminated with such fluids.

M. GENERAL REQUIREMENTS FOR CONFINED SPACES

Prior to any work commencing in any compartment that has been labeled as a Confined Space or meets the criteria for such a space, the compartment shall be pumped dry, cleaned, gas-freed and tested in accordance with 29 CFR 1915 and EM-385-1-1 and other applicable standards.

The COR shall be furnished a certificate stating that each compartment gas-freed by the contractor has been initially tested by a NFPA-certified Marine Chemist and that the space is safe for hot work and/or entry. A competent person may perform follow-up daily monitoring tests, providing conditions have not degraded. In such cases, an NFPA-certified Marine Chemist shall perform the retest.

The contractor shall provide proper ventilation of spaces in which work is required or men are required to enter. Ventilation shall be of the negative type, i.e. exhausting from the space to the outside atmosphere.

Disposal of material accumulated during gas-freeing work shall be the responsibility of the contractor and shall be in accordance with all federal, state and local laws.

The cost of cleaning, gas-freeing, certifying and monitoring any space to make it safe for hot work and/or entry shall be included in the Line Item where it is required, unless stated otherwise.

All spaces shall be checked by the contractor immediately prior to any USCG, ABS and/or USACE personnel entering the space for inspection purposes and posted accordingly.

The contractor shall maintain a Confined Space Entry and Monitoring program as required by Sections E-1 and H-1 of this contract throughout the contract period. This program shall be reviewed as part of the Pre-Construction Conference.

N. GENERAL REQUIREMENTS FOR SAFETY

The contractor shall comply with the requirements of the EM 385-1-1 (2014) “U.S. Army Corps of Engineers Safety and Health Requirements Manual” and 29 CFR 1915, “Shipyard Industry” throughout the contract period.

A qualified person must prepare the written site-specific Accident Prevention Plan (APP). Prepare the APP in accordance with the format and requirements of EM 385-1-1, Appendix A, and as supplemented herein. Cover all paragraph and subparagraph elements in EM 385-1-1, Appendix A. The APP must be job-specific and address any unusual or unique aspects of the project or activity for which it is written. The APP must interface with the Contractor's overall safety and health program referenced in the APP in the applicable APP element and made site-specific.

The COR, or a designated representative of the KO, will make a safety inspection of the shipyard facilities as part of the Pre-Construction Conference. At such time, the contractor's Safety program will be reviewed with the safety requirements.

The contractor shall provide a SSHO that meets the requirements of EM 385-1-1 Section 1. The SSHO or an equally-qualified Alternate SSHO must be at the work site at all times to implement and administer the Contractor's safety program. The SSHO and Alternate SSHO must have the required training, experience, and qualifications in accordance with EM 385-1-1 Section 01.A.17, and all associated sub-paragraphs. These qualifications shall be submitted to the Philadelphia District Safety office to recommend for acceptance.

The approved SSHO shall be a full-time responsibility and shall be solely dedicated to the Dredge McFARLAND during all work performed on first shift. The Alternate SSHOs shall monitor all work performed on the vessel on second shift. The SSHO shall be an employee other than the supervisor and shall report to a senior project (or corporate) official independent of the project superintendent.

Means of access between levels shall be kept clear to allow free passage of workers. If the ships ladders spaces (means to access between levels) are used to run ventilation ducts, hoses, cables, etc. they shall be so arranged as to permit free passage of an employee. There shall be no trip or fall hazards associated with the climbing up/down or access to and from the ladder. If work is performed in an area that restricts free passage, a second means of access shall be provided. No equipment shall be placed as to restrict movement within 4” of the back of the ladder rung.

Provide a Competent Person for Scaffolding who meets the requirements of EM 385-1-1, Section 22.B.02 and herein. The CP for Scaffolding is a person meeting the competent person requirements in EM 385-1-1 Appendix Q and designated in writing by the employer to be responsible for immediate supervising, implementing and monitoring of the scaffolding program. The CP for Scaffolding has enough training, knowledge and experience in scaffolding to correctly identify, evaluate and address existing and potential hazards and also has the authority to take prompt corrective measures with regard to these hazards.