2 Section C - Olmsted 2020 Drydocking DB-51 r2.pdf

SPECIFICATIONS FOR 2020 REPAIRS TO OLMSTED LOCKS AND DAM VESSELS

STATEMENT OF WORK

SW-1 Description of Work – DB51 Derrickboat

a. The work consists of furnishing all labor, materials, fittings, equipment, tools, power, heat, water, etc., and performing all work on Olmsted Derrickboat DB 51 specified herein. The principal dimensions and physical data for the vessel are shown below:

GENERAL DESCRIPTION

Length Overall 55’-0" Breadth, Molded 52’-0" Depth, Molded 9’ Material All Welded Steel Displacement, light 251.9 Long tons Draft, light 4’ Hull Form/Special Features Seatrax 48DR 110’

b. The major workscope for the DB-51 includes drydocking the vessel, cleaning and painting the hull, providing marine surveyor, hull coating, and thickness gaging inspections.

e. Wherever the term "Plant" is used in these specifications, it is understood to refer to the items of floating plant named in this paragraph, together with their normal appurtenances, equipment, and supplies.

f. General vessel arrangements and details are included in the attached file named “Reference

Drawings – DB51” The accuracy of these drawings has not been verified. Therefore, the Contractor shall template all work from the vessel. Potential bidders are encouraged to inspect the vessel prior to submitting a bid. See Contract Clause SW-6 for more details.

g. The Contractor shall furnish the necessary facilities for and shall bear the expense of any movement of the plant while it is in his or her possession.

h. Removal and/or relocation of any parts, equipment, fluids, etc. for interference or access shall be the responsibility of the Contractor. Similarly, all interference and access removals shall be reinstalled by the Contractor at his/her expense. Any damage from removal or relocation of parts, equipment, etc. shall be repaired or replaced at the Contractor’s expense.

i. The Contractor's work shall comply with ABS "Rules for Building and Classing Steel

Vessels" and USCG "Rules and Regulations for Subchapter I, Vessels" as found in the Code of Federal Regulations (Title 46, CFR).

SW-2 Indefinite Workscope – Not Used

SW-3 Mastership Agreement

Prior to the award of this Contract, the Contractor shall enter into a "Master Agreement for Repair and Alteration of Vessels". If the Contractor has entered such an agreement prior to this Contract, that agreement may be utilized. For more information, see DFARS Subpart 217.71, Master Agreement for Repair and Alteration of Vessels.

SW-4 Contract Duration

The Contract duration is 180 days total for all of the vessels in the base contract. Vessel availability from the Olmsted Project site is dependent on river condition, dates shall be coordinated with the Government Technical Representative or Olmsted Lockmaster. The Contractor is responsible for completing all work items and returning the vessel to Olmsted Locks and dam within the sixty (30) calendar days after the vessel is picked up. If there are long lead items necessary to complete this scope of work contractor shall communicate this information to the Government Technical Representative Prior to the pickup of the vessel. .

See Paragraph SC-1 for additional details.

SW-5 Distance Restriction From Olmsted Locks and Dam ORM 964.6

All Contract work shall be performed at a location no further than 50 river miles away from Olmsted Locks and Dam, Olmsted, IL 62910

SW-6 Bidder’s Inspection

All potential bidders may request an inspection of the vessel prior to submitting a bid. All requests shall be coordinated with US Army Corps of Engineers, Olmsted Locks and Dam, Shane Byassee - (618) 748-6401. All requests for inspection shall be no later than 10 days after the original posted date of the solicitation.

SPECIAL CONDITIONS

SC-1 Delivery, Commencement, Completion of Work and Return of Plant

a. Contractor shall coordinate the date of pickup the plant at Olmsted Locks and Dam with the lockmaster or government technical representative. The plant will be available to the contractor for the period described in SW-4. 48 hours notice will be provided to the lockmaster prior to the final pickup of the plant. Plant shall be picked up from 0800 CST to 1400 CST M-F excluding holidays. Contractor shall have a barge in tow that the crane boom can be laid down over to protect the crane boom from impact during transit. Government operator will lower the boom into position prior to the tow leaving, and tow Captain will verify that the vertical clearance of the crane is acceptable to pass under any bridges on the trip. Once arriving at the site the government operator will raise the boom into position needed to support the work. Contractor shall call the government operator anytime the crane is needed to be moved during the work.

b. The Government will accept return of the repaired and undamaged plant at Olmsted Locks and Dam. 48 hours notice will be provided to the lockmaster prior to the final pickup of the plant. Plant shall be delivered up from 0800 CST to 1400 CST M-F excluding holidays.

Contractor shall have a barge in tow that the crane boom can be laid down over to protect the crane boom from impact during transit. Government operator will lower the boom into position prior to the tow leaving, and tow Captain will verify that the vertical clearance of the crane is acceptable to pass under any bridges on the trip.

SC-2 Anti Terrorism / Operational Security

a. All contractor and all associated sub-contractors employees shall comply with applicable installation, facility and area commander installation/facility access and local security policies and procedures (provided by government representative). The contractor shall also provide all information required for background checks to meet installation/facility access requirements to be accomplished by installation Provost Marshal Office, Director of Emergency Services or Security Office. Contractor workforce must comply with all personal identity verification requirements (FAR clause 52.204-9, Personal Identity Verification of Contractor Personnel) as directed by DOD, HQDA and/or local policy. In addition to the changes otherwise authorized by the changes clause of this contract, should the Force protection Condition (FPCON) at any installation or facility change, the Government may require changes in contractor security matters or processes.

b. The contractor and all associated sub-contractors shall receive a brief/training (provided by the RA) on the local suspicious activity reporting program. This locally developed training will be used to inform employees of the types of behavior to watch for and instruct employees to report suspicious activity to the project manager, security representative or law enforcement entity. This training shall be completed within 30 calendar days of contract award and within 30 calendar days of new employees commencing performance with the results reported to the COR NLT 5 calendar days after the completion of the training.

c. The Contractor must pre-screen Candidates using the E-verify Program

(http://www.uscis.gov/e-verify) website to meet the established employment eligibility requirements. The Vendor must ensure that the Candidate has two valid forms of Government issued identification prior to enrollment to ensure the correct information is entered into the E-verify system. An initial list of verified/eligible Candidates must be provided to the COR no later than 3 business days after the initial contract award.

SC-3 Contractor's Custody of Plant

a. On entering and leaving dry dock, or marine railway, the Contractor shall have charge of, and be responsible for a vessel not operating under its own power. If tug or pilot service is required during delivery or return of the plant or at any time during Contractor's custody for maneuvering the plant between open water and dry dock, slip or berth at the Contractor's yard or other facility, or for moving the plant for any reason during the course of Contract work, such service shall be promptly furnished by the Contractor at his/her expense. This shall not exclude the right of the Government to move its plant around the Contractor's premises using the Government's personnel and facilities if the Government representative considers such movement of the plant to be in the interests of safety of the plant, or otherwise in the Government's interests.

b. The Government shall have the right to access the vessel while in the Contractor's custody with Government owned or hired floating plant or personnel for the purpose of delivering equipment, materials or personnel to the plant in the Contractor's custody.

c. The Contractor shall not permit the plant to go aground or bear upon the bottom of any waterway or go aground or bear upon any submerged object while in his/her possession. The Contractor shall not perform any Contract work on the plant if it should accidentally go aground or bear upon any submerged object, but shall notify the Government representative and immediately take the necessary steps to refloat the plant. The sole exception to this shall be that the plant shall be allowed to rest or bear upon a drydock which is properly prepared, in accordance with the plant's drydocking plan.

d. Contractor shall carry adequate insurance for the replacement value of the vessel.

SC-4 Accident Prevention

The Contractor shall provide a fire protection plan, flood prevention plan, and safety plan to the COR. All plans shall be in compliance with all federal, state, and local regulations as well as USCG, ABS, and USACE regulations. This information shall be submitted no later than 10 days after the Contract award date and shall be a prerequisite to the start of any work on the vessel.

The bulleted items listed below refer to specific areas of accident prevention, however this in no way limits the Contractor’s responsibility to perform all work under this Contract in strict accordance with their fire protection, flood prevention, and safety plans as well as all federal (ex.

29 CFR), state, local, USCG, ABS, and USACE regulations (EM 385-1-1).

a. The Contractor shall take all necessary precautions for the protection of the life and health of employees and other persons; for prevention of damage to property, materials, supplies, and equipment; and for avoidance of work interruptions in the performance of this Contract. The Contractor shall comply with all pertinent provisions of the Mastership Agreement for Repair and Alteration of Vessels and the Corps of Engineers Safety Manual EM 385-1-1, dated 30 November 2014 entitled "Safety and Health Requirements Manual" as amended and shall also take or cause to be taken such additional measures as the Technical Representative or Lockmaster may determine to be reasonably necessary for the purpose. The Contractor shall also comply with OSHA Safety and Health Standards 29 CFR. The Contractor shall designate the entire area of work as a hardhat area.

b. A qualified employee shall be designated by the Contractor to be directly responsible for full and immediate compliance with all applicable safety and fire protection requirements. The Technical Representative will make a safety inspection of shipyard facilities within 48 hours of the vessel's arrival at the Contractor's yard. At such time the Contractor's safety program will be reviewed with the Contractor's safety representative.

c. Fire watches shall be posted wherever hot work is performed. Fire watches shall also be posted on the opposite side of all adjacent bulkheads, decks, and overheads where the hot work is performed. All fire watches shall remain on site until 30 minutes after the hot work is completed. For additional requirements, see 29 CFR 1915. It should be noted that 29 CFR

1915.52 (b)(3) only requires additional fire watches for specific conditions, however the Contractor shall provide fire watches for all hot work as mentioned above.

d. The Contractor is responsible for compliance with USCG regulations for handling of inflammable and combustible liquids. Whenever hot work is to be performed, a certified marine chemist's gas-free certificate shall be furnished to the Government representative at the Contractor's expense prior to commencing work. Additionally, a copy of the most recent gas-free certificate shall be posted near the vicinity of the work and at each gangway for the vessel. The Contractor shall have the marine chemist recertify the vessel for all ongoing hot work permits in the event of any vessel movement or change in ballasted condition or in the case of any combustible liquid spillage. Following any of these events, inspection for recertification by a Competent Person is unacceptable.

e. All work in confined areas or enclosed spaces shall be performed in accordance with

Sections 06.H and 19.A.08 of EM 385-1-1, "Safety and Health Requirements Manual”. In such areas or spaces the Contractor shall test for the concentration of oxygen and have immediately available a sufficient number of respirators for everyone working in such areas or spaces. An attendant shall be stationed outside every confined space while work is being performed therein and a rescuer equipped with respirators and retrieval lines shall be immediately available in case of an emergency.

f. The Contractor shall furnish a gangway, conforming to EM 385-1-1, of suitable strength and construction for safe and convenient boarding of the vessel at all times. The gangway shall be installed at an angle of less than 40 degrees and shall have 39-inch high guardrails at both sides. Hatches and openings that present a falling hazard shall be provided with suitable and substantial guards.

g. All exits and passageways shall be kept free of obstructions and shall be kept well lighted at all times.

h. The Technical Representative will notify the Contractor of any non-compliance with the foregoing provisions and the action to be taken. The Contractor shall, after receipt of such notice, immediately correct the conditions. Such notice, when delivered to the Contractor or his/her representative at the site of the work, shall be deemed sufficient for the purpose. If the Contractor fails or refuses to comply promptly, the KO may issue an order stopping all or part of the work until satisfactory corrective action has been taken. No part of the time lost due to any such stop order shall be made the subject of a claim for extension of time or for excess costs or damages by the Contractor.

i. Compliance with the requirements of this provision (SC-4) by any subcontractors shall be the responsibility of the Contractor.

SC-5 Performance of Work by the Government

The Government reserves the right to perform certain work while the plant is in the Contractor’s possession. Government personnel, as well as materials, equipment, and tools, shall be permitted to access the vessel while in the Contractor’s possession and to perform the work.

SC-6 Labor Reports

The Contractor and each subcontractor performing work subject to the Service Contract Labor Standards statute shall make and maintain for 3 years from the completion of the work, and make them available for inspection and transcription by authorized representatives of the Wage and Hour Division, a record of the following:

(i) For each employee subject to the Service Contract Labor Standards statute-

(A) Name and address and social security number;

(B) Correct work classification or classifications, rate or rates of monetary wages paid and fringe benefits provided, rate or rates of payments in lieu of fringe benefits, and total daily and weekly compensation;

(C) Daily and weekly hours worked by each employee; and

(D) Any deductions, rebates, or refunds from the total daily or weekly compensation of each employee.

SC-7 Workmanship

a. General

1. All labor shall be especially skilled for each kind of work, thorough and first class in every respect, and under competent direction.

2. Where work of one trade joins, passes through or is on other work, there shall be no discrepancy or misfit when completed. In engaging one kind of work with another, marring or damaging of previously acceptable construction shall be cause of Contractor's replacement at no additional cost to the Government.

3. All parts of the work intended to join or bear upon others shall have complete and solid surface contact and fit together neatly without excessive cold work during erection. All faying surfaces shall be painted and be clean and smooth before bolting up. Shims or liners shall not be used for the purpose of overcoming a bad fit. Stopwaters shall be used only in seams or landings passing through or attached to watertight members.

4. All watertight staples and collars shall be malleable castings or forged from angles close fitting and with solid bearing over the entire faying surface. They may be riveted and caulked or welded watertight.

5. Ends of outstanding flanges shall be cropped.

6. Lightening holes may be punched or burned and all edges shall have burrs removed.

7. All hull castings shall be machined or ground to bear solidly against the connecting structure and all holes drilled. Holes in members having sharp curvature shall be avoided whenever practicable.

8. Limber and air holes in adequate size shall be cut in floors and elsewhere to provide free drainage and passage of air. Limber holes shall be located at the level of any cement waterways.

9. All new and disturbed iron and/or steel work shall have its finish restored in kind, or as otherwise indicated by specification.

b. Cutting

1. All edges and corners of plates and shapes shall be smooth and free of burrs. The use of a cutting torch is permissible for cutting plates and shapes to size, but burning of bolt or rivet holes will not be permitted. CNC guided torches are permitted to burn bolt or rivet holes provided the holes are smooth, free of burrs, or notches. New hull or bulkhead plates installed under this Contract shall have 2" minimum radius corners unless otherwise directed by the Technical Representative.

c. Welders and Welding

1. All welding performed under this Contract shall be accomplished only by welders who have successfully passed the qualification tests of American Bureau of Shipping (ABS), the American Welding Society (AWS) and/or the American Society of Mechanical Engineers (ASME) for the type of welding to be performed by each welder. Copies of the certifications of each welder the Contractor wishes to use for Contract work shall be provided to the Technical Representative by the Contractor prior to the beginning of Contract work.

2. The Contractor shall bear the expense of conducting these tests and shall certify by name to the Technical Representative, welders who have successfully passed the prescribed test. The Contractor shall require any welder to repeat these tests when, in the opinion of the Technical Representative, the work of the welder indicated a reasonable doubt of his/her efficiency. In such cases, the welder shall be re-certified as above if he/she successfully passes the re-test.

3. 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 manufacturer's label or be otherwise marked. Certified statements shall accompany each shipment of electrodes to the effect that sample pieces, representatives of each kind and size in each shipment, have satisfactorily passed the tests required by ABS.

4. All welding procedures shall conform to either ABS or AWS standards.

5. Welding procedures, as to direction, length, number and sequence of beads, shall be carefully planned so as to minimize locked up stresses, shrinkage and distortion.

d. Standard Parts

1. All articles, fittings, equipment, machinery and supplies used in the work covered by these specifications shall, as far as possible, be the manufacturer's standard articles, of reliable make, the manufacturer's current product, for which spare parts are readily available.

2. All materials, equipment, and machinery installed in or delivered with the vessel shall be new and of the quality specified herein.

SC-8 Coating Systems and Painting

a. All paint specified to be applied under this Contract shall be furnished by the Contractor unless stated otherwise.

b. Paint shall not be applied when atmospheric conditions will affect its application or durability.

c. Each coat of paint should adhere firmly and uniformly to the surface to which it is applied.

Sufficient drying time shall be allowed between coats.

d. In general, if paint is sprayed, each coat of paint shall consist of a double spray coat in which the surface or section of a surface to be coated is sprayed in a series of half-lapped passes over the surface or section of the surface, and then sprayed again at right angles to the first spraying direction in half-lapped passes.

SC-9 Standard Hull Materials

All structural hull material shall be in accordance with the current rules of ABS, or with the following specifications:

• Standard Specifications for Structural Steel: ASTM A131/A131M Rev A;

• Standard Specifications for Carbon and Alloy Steel Forgings for Thin-Walled

Pressure Vessels: ASTM A372/A372M;

• Standard Specifications for Steel Castings, Carbon, for General Application: ASTM

A27/A27M;

• Standard Specifications for Steel Castings, High Strength, for Structural Purposes:

ASTM A148/A148M

• Standard Specifications for Gray Iron Castings: ASTM A48/A48M.

SC-10 Electric Power and Compressed Air, The contractor shall furnish at his/her expense, all necessary compressed air and electric power for lighting and heating, and for the operations of necessary deck and auxiliary machinery of the plant while it is in his/her possession.

The Contractor is responsible for providing all labor, hoses, electrical cable, and any other equipment or material needed to make up the connections for the services identified above. The Contractor is also responsible for disconnecting the services at the completion of the Contract.

SC-11 Wharfage, Dockage, Garbage Disposal, Etc.

While the plant is in his/her possession, the Contractor shall be responsible for any, and pay all expenses of wharfage, dunnage, dockage, mooring lines, garbage disposal, security, etc. The Contractor, after making repairs shall move the boat to a convenient berth for the purpose of testing machinery and taking on supplies.

SC-12 Tests and Trials

All machinery or other equipment installed, repaired or worked on by the Contractor shall be tested upon completion of all work to demonstrate proper installation and operation to the Technical Representative. This shall include all removals for access and/or interference (See Contract Clause SW-1-h. for details).

Rework on any such equipment to demonstrate proper installation and operation shall be performed at the expense of the Contractor.

SC-13 Inspection by Audiogauging and Marine Surveyor

The Contractor shall provide the services of a marine surveyor to audio gauge various locations throughout the vessel. For the purposes of bidding, the Contractor shall assume that fifty

(100) audiogauge “shots” are required per hull surface. The Contractor is also responsible for having the marine surveyor provide a detailed report of the audiogauge readings. As part of this work, the Contractor is also responsible for providing all labor and power tools for cleaning locations where audiogauging is required.

SC-14 Vessel Security

The Contractor is responsible for security while the vessel is in the Contractor’s possession.

Technical Provisions

Hull Repairs - Definite Items

TP 1.01 Drydocking

a. The vessel shall be drydocked for such time as may be necessary to complete the work required by this Contract. In particular, but not limited to the following, the vessel shall be drydocked for any exterior hull cleaning and painting below the waterline and for any interior or exterior hull plating, cutting, welding, plate replacement or structural repair or replacement within or upon the hull including hull anodes and making modifications to the seachest intake. The Contractor shall assure that there is a drydock available for the plant for the entire duration of possession of the plant by the Contractor in the event that an emergency drydocking of the plant should be necessary for any reason.

b. The Technical Representative shall allow exceptions at his/her discretion to the necessity for drydocking for various items of work on a case-by-case basis only when informed by the Contractor and allowed to render a decision prior to any work being performed on the requested exception.

c. Drydocking blocks and other drydocking supports shall not obstruct access to remove, work upon, or replace: docking plugs, discharge openings, seachests, anodes, shafts, struts, sterntubes, propellers, rudders, keel coolers or any other hull fittings. The Contractor shall remove and relocate drydocking blocks and/or supports, or refloat and redrydock the plant, as needed at no additional cost to the Government in order to assure complete coverage in cleaning and painting or for any other work as specified herein. Prior to doing so, the Contractor shall notify the COR of their plan to relocate the blocks to adequately support the vessel. The minimal docking blocks shall be three continuous rows of blocks no less than 24” wide equally spaced running the length of the vessel. Contractor is responsible for reviewing the hull drawings and providing a docking plan to the technical representative prior to docking the vessel.

d. Items that are in this scope that are not covered in individual bid items on the bid schedule shall be bid under the drydock line item.

TP 1.03 Exterior Cleaning and Painting

a. General

1. The Contractor shall clean and paint the exterior of the vessel using only paints that are compliant with the requirements specified herein in addition to all Federal, State and Local environmental laws.

2. No paint used by the Contractor under this Contract shall be older than its shelf life as determined by its manufacturer at the time of its application to the vessel.

b. Procedure

NOTE - The Contractor shall coordinate an inspection with the Government Representative on site prior to the start of any sandblasting or pressure washing to ensure that all areas, equipment, and fittings are adequately protected.

The Contractor shall perform the following work in sequence:

1. Cover and protect all hull and house openings, equipment and fittings including but not limited to propeller shafts, rudder bearings, sea chests, transducers, windows, deck and crane machinery, antennas, speakers, radar, all remaining fenders, and any other items which could be damaged by exterior cleaning operations. Any items so damaged shall be replaced at the Contractor’s expense. At no time shall sandblasting grit be permitted to enter the vessel.

2. Surfaces to be sandblasted or sandwashed shall be degreased prior to cleaning. These specifications require the cleaning and painting of the entire hull up to the deck, and the washdown boom down to the deck level. Deck and house surfaces shall be protected from overspray. Any wiring, hoses, exterior surface of the vessel below the waterline as well as the main deck area, all main deck fittings, and the exterior bulkheads of the deckhouse at the main deck level.

3. All surfaces to be recoated shall be cleaned to SSPC SP12/NACE No. 5 LP WC to WJ-4 Light Cleaning. 5,000 psi pressure washing. All surfaces shall be free of all visible and non-visible contaminants including soluble salt, oils, grease, dirt, and debris. SSPC SP3 Power Tool Cleaning to remove all loose paint and loose rust. Feather abrade transition area between bare steel and tightly adhered coating. Recoated surfaces shall consist of the entire exterior surface of the vessel hull from the keel to the main deck level.

4. Apply a coating system in accordance with SC-8 “Coating Systems and Painting” to all cleaned and/or over sprayed areas in colors as existing or as in SC-8 “Coating Systems and Painting.”

5. Remove all cleaning/painting masks and covers and touch up paint any unpainted area or where made necessary by overspray.

6. The Contractor shall remove and relocate drydocking blocks and/or supports, or refloat and redrydock the vessel, as needed at no additional cost to the Government in order to assure complete coverage in cleaning and painting or for any other work as specified herein. Prior to doing so, the Contractor shall notify the Technical Representative of their plan to relocate the blocks to adequately support the vessel.

7. If upon inspection of the vessel that the hull condition is worse than expected then

Sandblasting per SSPC-SP-10 to near white metal can be awarded as an option on the bid schedule.

b. Colors

Colors shall match the existing colors on the vessel and shall conform to the Federal Colorchip numbers shown below. Federal Standard #595 of 1 March 1956 defines the appearance of the colors associated with each colorchip number shown below. References below (such as “red” or “black”) not associated with a specific colorchip number shall be associated with a specific colorchip number shown elsewhere in this section for that color.

1. Hull above waterline, stack, caprail, lower parts of deck fittings, bulwarks, handrails, and undersides of catwalks: Black, similar or equal to Federal Colorchip numbers 17038 (gloss).

2. Identification and Draft markings: White similar or equal to Federal Colorchip number 17875 (gloss).

3. Hull Below Water Line: Black subject to the approval of the COR.

c. Paints

The Contractor shall submit a list of paints to be used to the COR for approval prior to the start of painting. The abbreviation “dft” below means “dry film thickness”.

a. Full Prime Coat: All Surfaces Amine Cured Epoxy Mastic Hi-Build Coating S/G, Red Oxide – Volume Solids +87% @ 4-5mils dft,

b. Second Coat: Submerged Surfaces Amine Cured Epoxy Mastix Hi-Build Coating S/G, Black – Volume Solids +87% @ 4-5 mils dft,

c. Third Coat: Finish, Submerged Surfaces

S/G, Black – Volume Solids +87% @ 4-5 mils dft,

d. Second Coat: Above Water Line

S/G, Black – Volume Solids +87% @ 4-5 mils dft

e. Third Coat: Finish, above waterline:

Aliphatic Polyurethane Mastic Coating Gloss, Black – Volume Solids +65% @ 3-5 mils dft

f. Hull Lettering:

Aliphatic Polyurethane Mastic Coating Gloss, White – Volume Solids +65% @ 3-5 mils dft / coat – Apply 2 coats.

TP 1.04 Name Placards

a. Contractor shall remove the lettering of “Huntington District” on the port and starboard insignia plate shown on reference drawing 569-D460-01. Lettering in a matching font shall say “Louisville District”. Both insignia plates shall be repainted entirely in matching colors to a gloss finish.

Hull Repairs – Option Items

TP 1.05 Option - Steelwork

If steelwork options are awarded by the Contracting Officer, the Contractor shall remove plates, liners, and/or structural members. The Contractor shall prepare surfaces, and furnish and install replacement members, or furnish and install additional new members and plates cut or rolled to required shapes and weld in place in an approved manner. Bidders shall quote a unit price per 4 square foot of hull shell welded in place. This pricing can be used for any hull repairs. . Steel work called for elsewhere in these specifications shall not be included for payment under this provision unless specifically so stipulated. For purposes of this provision, steelwork shall include any of the vessel's shell or weather plating, framing and liners, including any hull areas under the potable water, ballast and fuel tanks, deckhouse and pilothouse skin and framing, main or auxiliary exposed or concealed decks and their framing, bulwarks, caprail, structurals such as deck vent guards, stacks, sunhood, and crane base that are accessible with minimal removals.

This shall also include any steelwork on the sea chests. New installations under this provision shall have their finish restored either in kind or according to these specifications, whichever applies. All painting shall be per SC-8 “Coating Systems and Painting” with surface preparation in accordance with SSPC-SP 10-85 “Near White Metal Blast.”

For the purpose of monitoring the quantity of steelwork completed, the Contractor shall maintain a log sheet to document the work throughout the Contract completion. The Contractor shall request approval and signature of the Government Representative on site for each entry on the log sheet to verify the information. After steelwork is completed barge shall be air and soap tested to check for any leaks.

TP 1.06 Option - Welding Seams

If welding seam options are awarded by the Contracting Officer, the Contractor shall weld seams in scattered locations. The Contractor shall vee-out (using a grinder or carbon arc gouging) existing welds prior to welding seams. Bidders shall quote a unit price per 10 linear foot of seam.

A quantity of 10 linear feet will be used for comparison of bids. For purposes of this provision a seam will be considered any line contact between two or more members. Payment for welding any seam will be on a linear foot of seam basis regardless of the number of members forming the seam or the number of passes or their locations required, as long as all welding passes affect substantially the same heat-affected zone. Lapped seams between parallel plates shall be considered two seams if each edge of each plate is welded. New installations under this provision shall have their finish restored in kind or according to these specifications, whichever applies.

All painting shall be per SC-8 “Coating Systems and Painting” with surface preparation in accordance with SSPC-SP 10-85 “Near White Metal Blast.”

Welding that is required to complete other steel work or welding items (ex. TP 1.05) elsewhere in this Contract shall be included under those specific items and not included for payment under Item 1.05.

For the purpose of monitoring the quantity of welding seams completed, the Contractor shall maintain a log sheet to document the work throughout the Contract completion. The Contractor shall request approval and signature of the Government Representative on site for each entry on the log sheet to verify the information.

TP 1.07 Option - Welding Hull Pitting

If welding hull pitting options are awarded by the Contracting Officer, the Contractor shall weld hull pitts > 1/8” depth in scattered locations. The potential locations shall be identified during the shipyard inspection for verification by the Government Technical representative. Once quantity is established the Contractor Officer will have to award the appropriate number of options prior to the start of work. The Contractor shall sand blast or wire wheel the bits to remove any corrosion prior to welding up the pits. Bidders shall quote a unit price per 100 pitts > 1/8” deep. A quantity of 100 pitts will be used for comparison of bids. For purposes of this provision a seam will be considered any line contact between two or more members. Payment for welding of pitts will be on a per 100 pitt basis as defined by the bid options. New installations under this provision shall have their finish restored in kind or according to these specifications, whichever applies. All painting shall be per SC-8 “Coating Systems and Painting” with surface preparation in accordance with SSPC-SP 10-85 “Near White Metal Blast.”

For the purpose of monitoring the quantity of welding pitts completed, the Contractor shall maintain a log sheet to document the work throughout the Contract completion. The Contractor shall request approval and signature of the Government Representative on site for each entry on the log sheet to verify the information.

TP 1.08 Option – Sandblasting Hull

If this option is awarded, surface preparation for all structural steel shall be in accordance with Steel Structures Painting Council Standards SSPC-SP10-85 (Near White Metal Blast) throughout. Profile blasting shall be in accordance with the primer manufacturer’s requirements.

All mill scale, weld spatter, dirt, oil and grease shall be removed. Immediately upon completion of surface preparation, all steel shall be coated with the coating system described in the following. The contractor can use either pre-construction primer or limit initial coating to base coat only. If initial coating with base coat is selected, prior to application of subsequent coats, all steel shall be sand swept clean (light blast) or water blasted and any damaged areas repaired prior to application of the remainder of the system. All areas needing repair shall be cleaned to bare metal, spot blasted to restore profile and re-coated with the base coat.

In addition to the sandblast preparation both above and below waterline coating applications shall be increased to a total of 20 mil dft, applied in the number of coats listed above.