BG-8506_DDX_Spec_2018_R1_051618.doc

DESCRIPTION/SPECIFICATIONS/WORK STATEMENT

GENERAL INFORMATION

1. The subject vessel is owned by the United States of America acting through the Maritime Administration, Department of Transportation (herein after called Marad).

2. The contractor shall provide all labor, material, and equipment necessary to make all removals and restorations; remove and replace interference’s; rig and unrig; make all disassembles and subsequent reassemblies 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.

3. 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 are to be replaced in good order.

4. Any and all removed equipment or parts remain the property of the government and is to be left aboard the vessel. The contractor shall re-deliver the vessel in the same clean and orderly condition as when received.

5. All work specified shall be accomplished and completed in conformity with the highest standards of shipbuilding practices. All items contained in these Specifications must be proved to the satisfaction of the Contracting Officer’s Representative (COR).

6. The term “or equal” 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. In the case of component or equipment substitution for those components or equipment noted on the Contract Guidance Drawings or Specification, the Contractor shall submit a written request delineating the design and the performance data on both the specified and substituted piece of equipment for COR approval and if approved, the Contractor shall take full contractual and technical responsibility for ensuring installation of components or equipment’s or both and compatibility with interrelated systems.

7. 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.

8. 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 immediately by use of a contractor generated inspection report. Any such additional work will be subject to a delivery order. Additional work to be accomplished ONLY WHEN AUTHORIZED IN WRITING.

9. 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 contractor shall be responsible for delivery from and to the Reserve Fleet, and shifting the vessel to and from drydock and within the contractor’s facility during the course of work.

10. 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 is to be presented to the COR before beginning work on the repairs. Initial Certificates are to be issued by a Certified Chemist, as will re-certifications if conditions change which will affect the Certificate. Gas-Free Certificates shall be updated daily by competent persons.

11. 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 surface preparations the contractor will conduct a joint inspection of the welding repairs with the COR.

12. All dirt and debris resulting from the work required by these Specifications shall be removed from the vessel and disposed of at contractor’s expense. All affected areas shall be left clean and in good order at the end of the dry-docking period.

13. The BG-8506 is a liquid cargo barge, steel construction, of the U.S. Army BG-type, built by AK-WA Shipyard in Tacoma, WA, in 1990. The vessel is classed by ABS, Load Line Only. Vessel particulars are as follows:

· Length, overall: 120 feet

· Breadth, molded: 33 feet

· Depth, molded: 12 feet 6 inches

· Displacement, light: 185 long tons

· Displacement, loaded: 763 long tons

· Draft, light:

· Forward: 2 feet 3 inches

· Mean: 2 feet 6 inches

· Aft: 2 feet 9 inches

· Draft, loaded:

· Forward: 7 feet 6 inches

· Mean: 8 feet 0 inches

· Aft: 8 feet 6 inches

· Freeboard, mean:

· Light: 8 feet 2 inches

· Loaded: 2 feet 6 inches

· Capacity, cargo:

· Deck: 578 long tons

· Liquid: 4160 barrels (rated)

· Cargo tank # 1 Stbd: 28,233 gallons

· Cargo tank # 2 Port: 28,233 gallons

· Cargo tank # 3 Stbd: 37,742 gallons

· Cargo tank # 4 Port: 37,742 gallons

· Cargo tank # 5 Stbd: 28,233 gallons

· Cargo tank # 6 Port: 28,233 gallons

· Total Capacity: 188,416 gallons Specifics for the BG-8506 Intent The intent of this specification is to drydock the vessel, clean and perform surface preparation to preserve the hull and main deck surfaces, complete ABS Drydocking and Load Line renewal requirements, and perform general repairs.

0001.1 DELIVERY

Provide tug(s), pilotage and riding crew as necessary, and any other services required to move the barge from its current berth in SBRF to the contractor’s shipyard. Provide assist tugs as required to place the barge in and out of the Contractor’s drydock. Upon completion of repairs, return the barge to SBRF.

0001.2 ON-BOARD CONTAINER REMOVAL

On the main deck is a standard 40-ft. shipping container that contains a portable oil remediation system. The container has a gross weight of 32,000 lbs. Lift the container off the barge and deliver to the Marad Warehouse, 1651 Viking Street, Alameda, CA 94501. Provide a fork truck to unload the container in the warehouse yard as directed by the Marad logistics personnel located there. The container will not be loaded back aboard the barge.

0001.3 TANK CLEANING

A. Cargo tanks #3 and #4 contained ULS diesel fuel, which has been removed except for the bottoms. The other four cargo tanks are clean and dry.

B. Open tank valves for #3 and #4 cargo tanks, allowing contents of the pipeline to drain into these two tanks.

C. Open all cargo valves in tanks and assure pipeline in tanks is drained.

D. Flush the pipeline and clean all six cargo tanks.

0001.4 DRY-DOCKING

A. Drydock the vessel for inspection, coating and repairs as described herein. At the completion of the required work, undock the vessel. All movement of the vessel on to and off of drydock shall be the contractor’s responsibility.

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

C. Provide a drydocking report to the COR showing both locations of blocks prior to re-delivery and Government acceptance of the vessel.

0001.5

HULL CLEANING AND INSPECTION

This section deals with the cleaning and inspection of the vessel’s exterior, which includes the entire hull (underwater and freeboard), main deck, ullage/expansion domes, deck house, hatches, vents and fittings.

A. Remove ten (10) tractor tire fenders from perimeter and store. Reinstall when directed after all coatings have been applied and properly cured.

B. Secure all openings to prevent the ingress of wash water, including water tight doors, hatches, deck house vents and port lights, engine exhaust pipe, and tank vents. Water wash the entire barge exterior, including main deck, sides, rakes, bottom, ullage/expansion domes and deck house, port and stbd, fore and aft, using high-pressure fresh water at a minimum of 3000 PSI to remove dirt, growth and salts. Examine hull and deck for apparent damage and coating failure. Submit a written report within one day of conditions found showing discrepancies found and their location to the COR.

C. 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.

0001.6 SURFACE PREPARATION

A. Prior to surface preparation, secure all watertight doors and expansion dome ullage hatches, cover and protect all tank and deck house vents and other openings to prevent ingress of contaminants. After protective measures have been accomplished, prepare surfaces for coating as follows:

1. Underwater/antifouling: Abrasive grit blast to SSPC-SP6.

2. Freeboard: Bare metal power tool clean to SSPC-SP11 all areas where coating is damaged or corrosion has broken through. Perform a full dual-action sanding to all existing freeboard coatings. Where SP11 surface preparation has been performed, feather back intact coatings prior to application of new coating. Solvent wipe 100% of freeboard surfaces prior to coatings application. For bidding purposes, assume 10% of the freeboard will require SP11.

3. Main deck, vents, bitts, cleats and chocks: will be maintained by Owner. Need not be addressed by the Contractor.

4. Deck house, expansion domes: will be maintained by Owner. Need not be addressed by the Contractor.

B. Upon completion of surface preparation, the Contractor is to make a visual inspection of the entire hull and main deck. Contractor is to submit a written report of the conditions found during this inspection and make recommendations, if any to the COR.

C. Handling, storage and disposal of hazardous waste, if any, generated as a result of surface preparation 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.

0001.7

COATING

Contractor is to provide all labor, equipment and material to accomplish the following surface coating. All coating shall be applied in accordance with the coating manufacturer’s recommendations and under the supervision of the coating manufacturer’s representative.

A.

UNDERWATER BODY (Keel to Deep Load Line)

1. Apply two (2) full coats of Intershield 300V or equal. Alternate colors between coats to assure proper coverage.

2. Apply two (2) full coats of Interspeed 6400NA or equal, first coat Black, second coat Red.

B. FREEBOARD (Deep Load Line to Main Deck)

1. On areas prepared to SSPC-SP11, apply two (2) spot coats of Intershield 300V or equal.

2. Apply one (1) full coat of Interthane 990HS or equal, Black.

3. Draft markings and plimsol marks are to be hand painted where bead-welded with two (2) coats of Interthane 990HS or equal, White.

4. Paint in the vessel’s hull number “BG-8506” only (do not paint in “U.S. Army”), where bead-welded fore and aft using two (2) coats of Interthane 990HS or equal, White.

C. MAIN DECK - will be maintained by Owner. Need not be addressed by the Contractor For all coatings, care is to be taken so overspray does not come in contact with unintended surfaces on the vessel.

0001.8 CATHODIC PROTECTION

A. Prior to surface preparation and coating, remove thirty-two (32) ea. existing twenty-two (22) lb. bolted zinc anodes from the barge hull. Anodes are secured to stainless steel hull studs with stainless steel hardware.

B. Inspect the removed anodes with COR to determine suitability for reuse. Anodes with more than 50% wastage will be replaced. COR will provide new anodes for those being replaced. Clean remaining anodes. Assume sixteen (16) anodes will not require replacement.

C. Reinstall anodes after the completion of all underwater hull coating work. Renew fasteners found to be missing or damaged. Cost of new fasteners shall be the subject of a change order.

0001.9 TANK INTERNAL INSPECTION AND REPAIR

A. Open manholes to fore and aft void spaces (four (4) total). Renew gaskets and reinstall after completion of inspections.

B. Provide the services of a Marine Chemist to test and certify safe for men the forward void, forward rake tank, all six (6) cargo tanks, aft rake tank (pump room), and aft void. With the exception of Cargo Tanks #3 and #4, all tanks/voids and pump room are clean and were last inspected internally in November 2017 by ABS for the vessel’s annual Load Line survey.

C. Perform a visual inspection of the internal coating of all tanks, voids and pump room. Provide a written report of conditions, coating failure, and rust and scale as found.

D. Exercise all six (6) 8” suction/fill valves, one per cargo tank. Assure the valves can be operated from the fittings on the main deck.

E. Renew 5 ea. flexible expansion joints in the 8” cargo pipeline. There are 2 ea. in #4 Cargo Tank, and 3 ea. in #6 Cargo tank.

0001.10 AMERICAN BUREAU OF SHIPPING SURVEY REQUIREMENTS

Provide support for the accomplishment of American Bureau of Shipping (ABS) Drydock Survey and renewal of the International Load Line Certificate:

A. Hull gauging requirements for Renewal Load Line Survey #3 IAW ABS Rules, Surveys after Construction, section 7-3-3/5.5.1(f)(ii), for Oil/Fuel Oil Tank Barges and Chemical Barges under 122 meters (400 feet) in Length. Provide the services of a qualified NDT technician to perform hull gauging of the vessel and submit a written report of findings.

1. Gauging requirements for subject barge will be as follows:

a. Two (2) transverse sections within the mid-ship half-length avoiding those tanks previously gauged, as determined by the ABS Surveyor.

b. Transverse webs with associated plating and longitudinals in way of the two (2) transverse sections required above.

c. All transverse bulkheads including stiffening system in all ballast and cargo tanks.

d. Two (2) wind and water strakes, port and starboard, for the full length.

e. All exposed main deck and superstructure deck plating.

f. Flat keel plating full length, plus all bottom plating.

g. Areas considered suspect by the Surveyor, throughout the barge.

2. Note that above requires a minimum of two readings per plate or longitudinal and maybe increased if substantial corrosion is found. For estimating purposes, assume 450 shots are to be taken.

B. Internal examination of tanks. Provide ventilation, lighting and a ladder as required for ABS surveyor to enter and examine the internals of each cargo tank, pump room and forward void space.

C. Opening of Tank Vents and Check Valve for Inspection. Open the following tank vents and check valves:

1. 6 ea. 4” gooseneck vents

2. 2 ea. 6” gooseneck vents

3. 6 ea. pressure-vacuum (PV) vents

4. 1 ea. 3” check valve in pump room

Inspect mesh and check balls. Inspect PVs faces for proper seating. Inspect 3” check valve in place (do not remove). After ABS Surveyor has inspected and accepted these items, reinstall all with new gaskets and existing hardware.

D. Drydocking survey. Provide assistance to ABS surveyor conducting dry-docking survey, which may include use of a man-lift, ladders, staging, and lighting.

E. Cargo tank hydrostatic testing IAW ABS 7-3-3/ 5.5.1(g)(ii). Assure all cargo transfer valves are closed prior to testing. Interior lighting and ladders may be required. Hydrostatically test all six (6) tanks using a checkerboard method with clean, fresh water. Provide access to ABS for internal inspection of all tanks, fwd void and pump room.

1. During the above surveys, accompany COR and ABS Surveyor and take note of any discrepancies noted by the Surveyor. Provide report of any findings recorded.

0002 SUPPLEMENTAL

A. The contractor is to estimate the cost of two hundred fifty hours (250) of supplemental repair work to be performed on this vessel in terms of a yard-wide man-hour (MH) labor rate.

B. An additional estimate of $9,000.00 may be utilized for material acquisition costs exclusive of other materials already specified in these repair specifications.

BG-8506 DDX 2018