W912BU24B0023 Amendment 0001.pdf

W912BU24B0023

W25PHS41593521

AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT

Except as provided herein, all terms and conditions of the document referenced in Item 9A or 10A, as heretofore changed, remains unchanged and in full force and effect.

15A. NAME AND TITLE OF SIGNER (Type or print)

30-105-04EXCEPTION TO SF 30

APPROVED BY OIRM 11-84

STANDARD FORM 30 (Rev. 10-83) Prescribed by GSA

FAR (48 CFR) 53.243

The purpose of this amendment is to:

1. Answ er RFIs #1-3.

2. Attach updated draw ing package titled "CEMVK Revetment Barge Draw ing Package Rev 1."

3. Update sections C, J, and H to reflect the updated draw ings and RFI information.

1. CONTRACT ID CODE PAGE OF PAGES

J 1 43

16A. NAME AND TITLE OF CONTRACTING OFFICER (Type or print)

16C. DATE SIGNED

BY 05-Sep-2024

16B. UNITED STATES OF AMERICA15C. DATE SIGNED15B. CONTRACTOR/OFFEROR

(Signature of Contracting Officer)(Signature of person authorized to sign)

8. NAME AND ADDRESS OF CONTRACTOR (No., Street , County, State and Zip Code) X W912BU24B0023

X 9B. DATED (SEE ITEM 11)

15-Aug-2024

10B. DATED (SEE ITEM 13)

9A. AMENDMENT OF SOLICITATION NO.

11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS

X The above numbered solicitation is amended as set forth in Item 14. The hour and date specified for receipt of Offer is extended, X is not extended.

Offer must acknowledge receipt of this amendment prior to the hour and date specified in the solicitation or as amended by one of the following methods:

(a) By completing Items 8 and 15, and returning 1 copies of the amendment; (b) By acknowledging receipt of this amendment on each copy of the offer submitted;

or (c) By separate letter or telegram which includes a reference to the solicitation and amendment numbers. FAILURE OF YOUR ACKNOWLEDGMENT TO BE RECEIVED AT THE PLACE DESIGNATED FOR THE RECEIPT OF OFFERS PRIOR TO THE HOUR AND DATE SPECIFIED MAY RESULT IN

REJECTION OF YOUR OFFER. If by virtue of this amendment you desire to change an offer already submitted, such change may be made by telegram or letter, provided each telegram or letter makes reference to the solicitation and this amendment, and is received prior to the opening hour and date specified.

12. ACCOUNTING AND APPROPRIATION DATA (If required)

13. THIS ITEM APPLIES ONLY TO MODIFICATIONS OF CONTRACTS/ORDERS.

IT MODIFIES THE CONTRACT/ORDER NO. AS DESCRIBED IN ITEM 14.

A. THIS CHANGE ORDER IS ISSUED PURSUANT TO: (Specify authority) THE CHANGES SET FORTH IN ITEM 14 ARE MADE IN THE

CONTRACT ORDER NO. IN ITEM 10A.

B. THE ABOVE NUMBERED CONTRACT/ORDER IS MODIFIED TO REFLECT THE ADMINISTRATIVE CHANGES (such as changes in paying office, appropriation date, etc.) SET FORTH IN ITEM 14, PURSUANT TO THE AUTHORITY OF FAR 43.103(B).

C. THIS SUPPLEMENTAL AGREEMENT IS ENTERED INTO PURSUANT TO AUTHORITY OF:

D. OTHER (Specify type of modification and authority)

E. IMPORTANT: Contractor is not, is required to sign this document and return copies to the issuing office.

14. DESCRIPTION OF AMENDMENT/MODIFICATION (Organized by UCF section headings, including solicitation/contract subject matter where feasible.)

10A. MOD. OF CONTRACT/ORDER NO.

2. AMENDMENT/MODIFICATION NO. 5. PROJECT NO.(If applicable)

6. ISSUED BY

3. EFFECTIVE DATE

05-Sep-2024

CODE

U.S. ARMY CORPS AND ENGINEERS - PHILA

1650 ARCH STREET

PHILADELPHIA PA 19103

W912BU 7. ADMINISTERED BY (If other than item 6)

4. REQUISITION/PURCHASE REQ. NO.

CODE

See Item 6

FACILITY CODECODE

EMAIL:TEL:

SECTION SF 30 BLOCK 14 CONTINUATION PAGE

SUMMARY OF CHANGES

SECTION SF 30 - BLOCK 14 CONTINUATION PAGE

The following have been added by full text:

AMENDMENT 0001

Amendment 0001 The below questions were asked by potential bidders. Please see the questions and Government responses below.

Question 1: It appears that drawing 907-B406-01 Paint Schedule is missing. Can that be provided?

Answer 1: The drawing package that was posted was a prior version. The correct updated drawing package is being provided with this Amendment. Potential bidders should be advised there are changes among various drawings through the package.

Question 2: There are references to anodes throughout the specification but drawing 907-B405-01 Anode Arrangement appears to be missing. Can that be provided?

Answer 2: The requirement for anodes has been removed. All references to anode or anode arrangement should be ignored.

Question 3: There are references to mat stacks and dunnage through the specification. Are these to be furnished by the builder?

Answer 3: No. The mat stacks and associated dunnage are what the revetment barges will carry after vessel delivery. These are Government made and owned and not the responsibility of the builder to provide.

Additionally, it appears there is conflicting information regarding the period of performance between Section F, Required Delivery Schedule, Section H and Delivery Information. The period of performance should read as follows:

Base Contract: 490 days, total Phase 1 – 90 Calendar Days Phase 2 – 340 Calendar Days Phase 3 – 30 Calendar Days

There are 15 Calendar Days between Phase 1 and Phase 2, and another 15 Calendar Days between Phase 2 and Phase 3.

Option 1: 30 Additional Calendar Days Should Option 1 be exercised, the period of performance will be 520 Calendar Days.

Option 2: 30 Additional Calendar Days Should Option 2 be exercised, the period of performance will be 520 Calendar Days.

Should Options 1 and 2 both be exercised, 60 calendar days will be added to the contract period of performance for a total of 550 Calendar Days.

Finally, a requirement for drawing package submission has been added to the scope of work. The Contractor shall receive the contract drawings from the Marine Design Center. The contractor is responsible to submit these drawings to ABS for class approval of the engineering. Any engineering effort required to resolve technical comments will be completed by the Government, resubmitted to ABS by the contractor, and the changes will be incorporated into the contract via modification. All drawing related coordination with ABS on this project shall be handled directly by the Contractor. All expenses associated with the acquisition of the required reviews, inspections, construction support, classing and certification shall be borne by the contractor

SECTION SF 1449 - CONTINUATION SHEET

The following have been modified:

SECTION C

Section C - Descriptions and Specifications

SCOPE OF WORK

C000 GENERAL

C001 PROJECT DESCRIPTION

A. SCOPE

The Marine Design Center (MDC) of the U.S. Army Corps of Engineers (USACE) has issued this Invitation for Bid (IFB) to acquire four new welded steel revetment barges. The barges’ primary mission will be to augment the Vicksburg District’s existing fleet of revetment barges that support the Mat Sinking Unit. The barges will accommodate two rows of mat stacks, 23 on the bottom and 22 on top. Each stack shall comprise 14 squares at approximately 3,400 lbs. per square. Additional barges may be procured as Options under this contract, which must be activated no later than 30 days after contract award.

B. PRINCIPAL CHARACTERISTICS

The principal dimensions of each barge shall be as follows:

Length (Molded) 160'- 0"

Beam (Molded) 36'- 0"

Depth (Molded at Centerline) 11’-0”

Bow Raked

Stern Raked

Sheer Forward 10’ and aft 10’

Camber None

C002 CONTRACT OVERVIEW

For this contract, the contractor shall include, as a minimum, all costs to provide and deliver the following:

Submit the Government prepared contract drawing package to ABS for class approval.

Using the contract and reference drawings provided in the procurement package, supply the required engineering services to complete the design for production and fabrication of the barges.

Fabricate multiple barges in accordance with the specifications of this contract.

Test all barge related equipment.

Obtain ABS Class for the barges as stated in Section C004.

Deliver the completed barges to a designated location.

Final Acceptance at the Corps’ designated location of the completed revetment barges.

C003 DESIGN STANDARDS

Each barge shall be designed and constructed in accordance with the contract drawings, and the latest edition and interpretations of the rules, regulations, requirements and standards of the Legislation, Regulatory Agencies and technical organizations listed below. The contractor is required to incorporate into the barges any revisions to the rules and regulations listed below as well as those stipulated in the respective specification clauses.

American Bureau of Shipping (ABS) “Rules for Building and Classing Steel Vessels for Service on Rivers and Intracoastal Waterways”.

o This may be referred to in this specification as the ABS River Rules.

International Association of Classification Societies (IACS) Guide No. 47 “Shipbuilding and Repair Quality Standard.”

American Welding Society (AWS) “Guide for Steel Hull Welding”, AWS D3.5.

46 CFR, Subchapter G, Part 67 – Documentation of Vessels o Builder’s Certification and First Transfer of Title (U.S. Coast Guard Form CG- 1261) o Certificate of Documentation (COD) (U.S. Coast Guard Form CG-1270)

46 CFR Subchapter S – Part 170, Subpart E – Weather Criterion

46 CFR Subchapter S – Part 174, Subpart B – Special Rules Pertaining to Deck Cargo Barges

U.S. Coast Guard, Navigation Rules and Regulations, International and Inland, COMDTINST M16672.2D

U.S. Maritime Administration Schedule for Pipes, Joints, Valves and Fittings.

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

The National Shipbuilding Research Program (NSRP 0490), January 1998, “Industrial Standards for Hull Structural Penetration Design Criteria and Details.”

C004 CLASSIFICATION & CERTIFICATION

A. U.S. COAST GUARD (USCG)

The Contractor shall be responsible for delivering the barges with a USCG Builder’s Certification and First Transfer Title and a USCG Certificate of Documentation (COD). The owner shall be as listed in part D of this Clause.

The Government shall be provided a copy of all correspondences between the Contractor and the

USCG.

B. ABS CLASSIFICATION

The contractor shall be responsible obtaining necessary regulatory body reviews and approvals, obtaining necessary inspections and surveys during construction and for the certification and classing of the vessel as follows:

ABS classification for Maltese Cross A1, Barge, Rivers and Intra-Coastal Waterways Service, with Reinforcement B.

Provide a Simplified Stability Letter

The Contractor shall receive the contract drawings from the Marine Design Center. The contractor is responsible to submit these drawings to ABS for class approval of the engineering.

Any engineering effort required to resolve technical comments will be completed by the Government, resubmitted to ABS by the contractor, and the changes will be incorporated into the contract via modification. All drawing related coordination with ABS on this project shall be handled directly by the Contractor. All expenses associated with the acquisition of the required reviews, inspections, construction support, classing and certification shall be borne by the contractor.

The recommended ABS point of contact is Mr. Rich Delpizzo, who can be reached by phone, email or mail, at: (703) 519-9233, RDelpizzo@eagle.org, or 1525 Wilson Blvd, Suite 625, Arlington, VA 22209.

The contractor shall be financially responsible for any additional ABS review costs incurred due to contractor request for deviation from approved drawings, where the Government allows the deviation.

If the Contractor intends to launch, test, operate or tow the barges “out of class”, the Contractor must specifically advise ABS of such intent and incorporate all modifications required by that agency for such operation at no additional cost to the Government and at no additional contract time. Any such modifications which, in the opinion of the COR, affects the arrangements, operability, or suitability of the barges shall be removed from the barges by the Contractor at no additional cost or time and the barges returned to new condition prior to Final Acceptance.

C. ABS ONSITE INSPECTION

When steel construction commences, the Contractor shall coordinate with ABS to ensure the frequency of onsite inspections are not less than once every two weeks. The Contractor shall provide a schedule for the ABS Onsite Inspections. The schedule shall include the scheduled inspection date(s), actual inspection date(s), and signature blocks for the ABS Inspector and Contractor, and notes for what inspection(s) were conducted. This report shall be kept current and upon request be made available to the COR.

D. VESSEL OWNER & ADDRESS

For the ABS certificates of classification, the owner shall be listed as “U.S. Army Corps of

Engineers, Vicksburg District”. The owner’s address for record shall be listed as:

US Army Corps of Engineers – Vicksburg District Operations Division

2577 Haining Rd

Vicksburg, MS 39183

PHONE: (601) 631-7222

EMAIL: John.M.Henderson@usace.army.mil

E. ABS ENGINEERING MANAGER ACCESS & DISCLOSURE

The Marine Design Center (CEMDC) will be the “Owner’s Representative” on this project. All correspondence with ABS shall be made available to the COR. In order to facilitate the communication process and reduce the paperwork burden on all parties, the Contractor and all sub-contractors shall utilize the ABS MyFreedom Portal for all drawing submittals and correspondence.

The Contractor and all sub-contractors shall make the necessary arrangements with ABS to ensure that the Marine Design Center is granted the following Oversight Permissions for this contract:

View project and drawing status

View comments

View transmittals

Download approved drawings and review letters

E-Mail notification of approval

E-Mail notification of transmittal

Status

Disclaimer

The Marine Design Center’s ID/WCN number is 615255 and the point of contact with respect to the ABS Coordination/MyFreedom Portal is Mr. Tim Keyser, Timothy.J.Keyser@usace.army.mil, phone: (215) 656-6171.

The Contractor shall ensure that, as a part of its contract with ABS, the Contractor authorizes ABS to disclose to and discuss with the Army Corps of Engineers any Rule or certification criteria issues, design assumptions and their impact on classification and certification, and any other technical considerations on which classification is to be based or which may affect future classification or certification of the vessel.

The Contractor shall authorize ABS to provide the Army Corps of Engineers at its request with a copy of all correspondence related to classification, statutory certification, or other compliance verification for which ABS is responsible as it is promulgated and initially distributed. This is to include drawings and other engineering work requiring ABS approval as well as correspondence generated which relates to such approvals, including all such correspondence dealing with vendors.

In addition, the Contractor shall copy the Army Corps of Engineers with correspondence regarding classification, statutory certification, and other compliance verification for which ABS is responsible. The Contractor shall also authorize ABS to establish and maintain contact with other certification, verification, and compliance agents involved on the vessel being built.

Upon request by the COR, the Contractor shall request ABS to furnish the Government with the project comment list. The list shall include open and closed technical and surveyor comments.

The surveyor comments shall not only include comments generated during the drawing review process, but also comments generated by the ABS Surveyor during construction inspections.

The comment list shall be sent directly from ABS to the COR via email as a .pdf file.

At the completion of the ABS review process, the Contractor shall download all ABS “Eagle Stamped” drawings and provide them via electronic transfer to the Government in .pdf format.

C005 VESSEL IDENTIFICATION

The vessels to be acquired through this solicitation have been assigned the following names and Marine Design Center hull and project numbers:

MDC Project Number 3532

MDC Hull Number 907

Vessel Names TBD

For the purposes of document and drawing preparation, the title “CEMVK REVETMENT BARGE 160’ x 36’ x 11’ ” and the MDC hull number 907 shall be used on all documents and drawings.

Upon selection of the official name for the vessels by the Government, the contractor shall incorporate the names into all “As-Built” documents and the construction drawings of the required hull markings. The MDC hull number shall be used in lieu of an “Official Number”.

C006 SCOPE OF WORK

A. CONTRACTOR’S RESPONSIBILITY

The contract consists of three phases:

Phase I Planning, Scheduling and Engineering

Phase II Construct and Test

Phase III Deliver

In accordance with the three phases, the contractor assumes complete responsibility for building and testing each barge to meet the requirements of the contract. Should the contractor determine at any time that he is unable to fulfill those responsibilities, he shall notify the COR immediately of the problem experienced and his proposed manner of correction.

2 separate options may be activated to procure 1 or 2 additional barges. Options shall be activated within 30 days of base contract with notice to proceed.

B. CONTRACT INTENT

It is intended that the contractor will be able to bid using the contract drawings provided in the solicitation. Further design development is not expected.

C. DRAWING CHANGES

The plans and specifications of this contract have been prepared in accordance with the referenced design standards.

All members, plating and welds have been defined. The contractor shall not deviate from the hull principal characteristics, subdivision and general arrangements, scantlings and welds as shown on these plans.

It is expected that a contractor could bid and build the barges with only such engineering and additional design effort as is necessary to modify the design to incorporate the required design change and to suit the individual construction and business practices of the shipyard.

Any contractor-driven design changes require advanced notification and approval from CEMDC before additional engineering effort can begin. The contractor is permitted to request modifications to the contract design in order to suit the individual construction and business practices of the shipyard.

D. CONTRACT DRAWINGS

The contract drawings are listed in Section J, Clause J01, Contract Drawings & Documents for CLIN 0001. The contract drawings are provided with these specifications for bid and construction purposes.

E. AS-BUILT DRAWING

The requirements for the “As-Built” drawings are defined in Section H, Clause H14, As-Built Drawings.

F. DEVIATIONS FROM THE CONTRACT DESIGN

Should the barge contractor desire to deviate from this specification and/or the contract drawings, he shall submit his request in writing to the COR. Each proposed deviation requested shall be accompanied with a detailed analysis and comparison of the equipment, material or arrangement specified, and the equipment, material or arrangement proposed, including features, dimensions, performance characteristics, benefit to the Government, and compelling reason(s) why the deviation should be made. The request shall include, but is not limited to:

Desired deviation

Reason(s) for the deviation

Detailed analysis (as stated above)

Impact on schedule

Impact on cost

Impact on weight, draft, and trim

Impact of regulatory review and classification

Supporting documentation (i.e. cut sheets, engineering drawings, photos, etc.)

In the absence of compelling reasons for making the deviation, the barge contractor’s proposal may be denied.

The Government will review the request and render a decision within 14 days of receipt of a complete request for deviation. Requests that do not provide all the information identified above may not be reviewed within 14 days, or may be returned as incomplete, with no review action.

If approved, the barge contractor shall be responsible for any cascading effects on the design, drawings or scientific reports as determined by the Government. The barge contractor shall be responsible for integrating the deviation into the design at no increase in contract cost or no extension of contract completion.

No work deviation shall commence without a written approval from the KO.

If a deviation is approved by the COR, it is the sole responsibility of the barge contractor to coordinate with ABS and provide any additional engineering effort to meet the conditions of classifications and this specification.

The barge contractor shall bear all costs associated with any requested and/or approved deviations, including engineering, estimating, administrative and overhead, regulatory review and approval, construction and test and trials.

G. CONTRACT DESIGN PERFORMANCE RISK

The Government assumes the performance risk for the design as shown on the contract drawings and described in this specification. For bidding purposes, bidders shall assume that the Government provided contract design is compliant with ABS class rules. The contractor is responsible for submission of these drawings to ABS for approval of the engineering by ABS and all drawing related coordination. Any ABS review comments that is not related to final equipment selection or standard shipyard practices, and is technical, will be the responsibility of the Government to resolve via contract modification with the shipyard.

The barge contractor shall provide and install all the features as they are shown on the contract drawings. All major pieces of equipment have performance characteristics shown on the contract drawings or described in the specifications.

If the barge contractor selects equipment that is not as shown on the contract drawings or described in this specification, he shall be responsible for ensuring the overall system(s) performance is maintained, and if necessary, re-engineering the system(s) and revising the drawings.

C010 DEFINITIONS

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

ABS - American Bureau of Shipping.

KO - Contracting Officer - A person with the authority to enter into, administer and/or terminate contracts and make related determinations and findings.

COR - Contracting Officer’s Representative - A member of the contract management and quality assurance team authorized by the Contracting Officer to perform certain administrative and managerial duties.

GFE – Government Furnished Equipment - Equipment, materials or components furnished by the Government to the Contractor for installation in the vessel.

MDC - Marine Design Center.

QC - Quality Control. Quality Control is a function of the Contractor. Quality Assurance (QA) is a function of the Government.

USACE - United States Army Corps of Engineers.

USCG – United States Coast Guard.

C025 CONTRACTOR QUALITY STANDARDS

A. GENERAL

The contractor shall be responsible for the construction of complete and functioning barges. The contractor shall utilize the contract drawings to meet specification requirements utilizing construction and testing methods to ensure that the completed barges conform to the intended design.

Inspection by the Marine Design Center is for the purpose of verifying the proper function of the contractor’s quality control measures and is not to be used as a substitute for control of quality by the contractor.

Every effort shall be made during production planning to construct the vessel in an efficient sequence minimizing re-work and repair. Care shall be taken to assure the latest revisions of the Final Design plans are being used.

B. STRUCTURAL MATERIALS

Unless otherwise specified or noted on the drawings, all structural hull material shall be in accordance with the following specifications:

American Bureau of Shipping (ABS), “Rules for Building and Classing Marine Vessels” and “Rules for Building and Classing Steel Vessels for Service on Rivers and Intracoastal Waterways”.

Welding Materials - ABS “Approved Welding Electrodes, Wire-Flux and Wire Gas Combination”.

Bolts, nuts and screws – ASTM A307-82, Specification for Carbon Steel Externally and Internally Threaded Standard Fasteners.

C. STANDARD PARTS AND MATERIALS

All articles, fittings, equipment, machinery, supplies, and materials used in the construction and outfitting of the vessel shall be new, of the highest grade, free from defects and imperfections, and be the standard product of reputable manufacturers, to the maximum extent practicable. Any material not specified shall be the best of their kind for the purpose intended. All items shall be suitable for steel barge application and meet the latest requirements of standard specifications published by National Agencies. No salvaged materials shall be used in the works. Spare parts and service shall be readily obtainable.

D. WORKMANSHIP

All labor shall be especially skilled for each kind of work and under competent direction.

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 damage of previously acceptable construction shall be cause for rejection. All parts of the vessel intended to join or bear upon other parts shall have complete and solid contact and shall fit together 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.

All frames and longitudinal members, where applicable, shall be provided with limber holes and/or snipes of adequate size to allow water in bilges to flow to the lowest point of each compartment. Limber holes shall also be provided to allow for the passage of air in tanks.

Limber holes shall be located at the plate edge.

Ends of outstanding flanges shall be sniped back of not more than 30 degrees. Lighting holes may be punched or flame-cut and all edges shall have burrs removed.

All holes for machinery mounting bolts shall be drilled or punched; burning is not acceptable.

Holes in members having sharp curvature shall be avoided.

All hull casting shall be machined or ground to bear solidly against the connecting structure.

E. WELDERS

All welding under this contract shall be done only by welders who have successfully passed qualification tests accepted by the American Bureau of Shipping or other regulatory agency acceptable to ABS. The contractor shall bear the expense of conducting these tests and shall certify, by name to the Contracting Officer, welders who have successfully passed the prescribed tests and hold current, valid certifications.

The contractor shall require any welder to repeat these tests when in the opinion of the Contracting Officer’s Representative, the work of the welder indicates a reasonable doubt of his proficiency. In such cases the welder shall be re-certified as above if he successfully passed the retest; otherwise, he shall be disqualified until he has successfully passed the retest.

The listed of certified welders shall be submitted during Phase II of the Contract. The list shall include the employee’s name, certification(s), and date(s) of the most recent tests for each certification(s). This list shall be named and numbered 907-C025-01 LIST OF CERTIFIED

WELDERS.

The contractor shall maintain records of the individual welder’s certification during the course of the contract. The records are to be available for examination upon request of the Contracting Officer or his representative.

F. WELDING

All welding shall be in accordance with the current rules of the American Bureau of Shipping, except where stated otherwise. All welding equipment used on the work shall be of a modern type subject to close control. The electrodes used throughout the work shall be suitable for use with the parent metal at each weld, and be approved by ABS.

Welding procedures, as to direction, length, numbers and sequence of beads, shall be carefully planned to minimize lock-up stresses. Care shall be exercised to produce smooth even beads, especially on all exposed plating and fittings. Beads shall be ground where directed by the Contracting Officer or his authorized representative.

The contractor shall employ appropriate welding procedures and grounding connections to preclude the possibility of anodic erosion of the hull after launching.

A detailed description of all welding procedures being employed in the construction shall be available to the Contracting Officer or his authorized representative.

G. INSTALLATION

Materials and equipment shall be installed in accordance with the approved recommendations of the manufacturer, and in compliance with this specification and the contract documents. The installation shall be accomplished by workmen especially skilled for each kind of work and under competent direction.

H. PLATE FAIRNESS

Steel plating shall be installed using proper welding procedures and sequences to insure fair, undistorted plating panels. The use of filler materials to surface unfair areas is not acceptable.

Maximum allowable plating distortion is depicted in the IACS. Guide No. 47. Distortion shall not exceed the amounts in this guide.

I. CONSTRUCTION STANDARDS

All material, machinery and equipment shall be new, of current manufacture and suitable for the marine service intended. Spare parts and service shall be readily obtainable.

All material, unless otherwise specified in these specifications or in the drawings, shall be of commercial quality to ASTM, ANSI, or SAE specifications.

During construction and before delivery, the contractor shall be responsible for protection of all material, equipment, etc., intended for the vessel.

The overweight tolerance of members shall be within the limits defined by the specifications of the American Society for Testing and Materials.

All materials shall be free of imperfections due to manufacturing processes and from defects which adversely affect appearance or serviceability.

All plating shall be neatly cut, fitted and welded. All sharp edges or projections which constitute a personnel hazard shall be removed or ground smooth. All notches shall have a radius to prevent stress concentrations.

Where aluminum must be attached to dissimilar metals or between dissimilar alloys of aluminum, fasteners shall be of stainless steel of an approved design with insulation as required to eliminate metal to metal contact.

All galvanizing shall be done after fabrication by the hot dip process, and the zinc shall be not less than 98% pure. In instances where some types of metals cannot be hot dip galvanized, zinc silicate coating may then be substituted.

C100 SCIENTIFIC

C105 HULL GEOMETRY

A. CONTRACT DRAWING

907-B105-01 HULL LINES & OFFSETS

B. GENERAL

The hull geometry for each barge is as shown on the contract drawing.

C115 INCLINING & DEADWEIGHT SURVEY

A. CONTRACT DRAWING

907-B125-01 HYDROSTATIC CALCULATIONS

B. REFERENCE DRAWING

907-B115-01 WEIGHT ESTIMATE

C. WEIGHT & CENTER OF GRAVITY ESTIMATES & MONITORING

The contractor shall implement a careful independent weight estimating and monitoring program.

During the Planning, Scheduling, and Engineering Phase (Phase I), the contractor shall prepare a detailed and complete weight estimate for the vessel based on selected equipment and take-offs of materials. Weights and centers of gravity shall be documented in a spreadsheet type format using a system similar to the MDC Work Breakdown Structure (WBS), which is contained within the provided reference drawing. The document shall be numbered 907-C115-01 and titled

WEIGHT ESTIMATE.

The detailed weight estimate shall be complete with the longitudinal, transverse, and vertical location of the center of gravity of all items included in the estimate.

The contractor shall update the weight estimate with details on the equipment selected and purchased, and outfitting design developments. The weight estimate shall be submitted with each progress payment request for Government quality assurance review.

During the Construct and Test Phase (Phase II), the contractor shall continue to update and submit the weight and CG estimate. The update shall reflect actual equipment location, actual quantity and location of outfitting items, and any changes to the structural weight.

The Government will review the weight estimate at each submittal to ensure the anticipated draft, and trim and stability conditions of the barge are satisfactory. If weight growth that adversely impacts the vessel’s trim and stability is found, the Government will contact the contractor to determine the cause and develop a remedial action plan.

D. INCLINING & DEADWEIGHT SURVEY

Upon completion of all work, with the first Hull 907 in the lightship condition, the Contractor shall conduct a deadweight survey and inclining test. With subsequent hulls in the lightship condition, the Contractor shall conduct a deadweight survey. The inclining test shall be carried out in accordance with ASTM F 1321-21 and contract Section E05.

The Contractor shall be responsible for developing the inclining test procedure/plan, providing all certified inclining weights, pendulum setups, support equipment and personnel, directing the experiment, recording all data, and completing the inclining test report. The inclining experiment shall be conducted by a Registered Professional Engineer in the field of Naval Architecture.

The inclining plan shall be numbered 907-C115-01 and titled: INCLINE EXPERIMENT PLAN.

For the Government’s review and approval, the plan shall be submitted at least 45 calendar days prior to the scheduled inclining. Following the completion of the inclining experiment, the Contractor shall complete the incline test report and determine the lightship displacements, centers of gravity and hydrostatic properties of the barge. The report shall be numbered 907- D115-02 and titled: INCLINE EXPERIMENT RESULTS.

The deadweight surveys for the subsequent hulls shall be number 907-D115-03 and titled:

DEADWEIGHT SURVEY REPORT which shall be revised to add each deadweight survey.

The final submittals shall be reviewed and stamped by a Registered Professional Engineer in the field of Naval Architecture. These documents shall be submitted to the Government and ABS for review and approval.

C150 DAMAGE STABILITY

A. CONTRACT DRAWING

907-B150-01 DAMAGE STABILITY

B. GENERAL

The Government will provide and update damage stability calculations for the first barge, after the completion of the initial inclining test and deadweight survey. The Government will determine if the calculations for subsequent barges need to be updated following the respective deadweight surveys.

In the full load condition, each barge will meet a one compartment damaged stability standard where:

After breaching any one compartment, the equilibrium waterline shall remain below the deck edge.

Maintain positive righting arm in the equilibrium condition.

The vessel may be damaged from the side or bottom.

The initial draft and trim of the vessel will be in accordance with the operating condition.

The full load condition includes two rows of mat stacks, 23 on the bottom and 22 on top, along with associated dunnage.

C155 INTACT STABILITY

A. CONTRACT DRAWING

907-B155-01 INTACT STABILITY

B. GENERAL

The Government will provide and update intact stability calculations for the first barge, after the completion of the initial inclining test and deadweight survey. The Government will determine if the calculations for subsequent barges need to be updated following the respective deadweight surveys.

Each barge will meet the intact stability criteria in 46CFR170.170 and 46CFR174.015. Per USCG NVIC, 5 ft-degrees of righting area is satisfactory for 46CFR174.015.

C165 SIMPLIFIED STABILITY LETTER

A. REFERENCE DRAWING

T1716010 KEEN STABILITY LETTER

B. GENERAL

Following the completed and approved incline results, the Contractor shall request a Simplified Stability Letter from ABS. The letter shall address route, draft and trim, deck cargo, tanks, hull openings, weight changes, bilges, list, freeing ports and watertight bulkheads.

C170 DOCKING PLAN

A. CONTRACT DRAWINGS

907-B170-01 DRY DOCK PLAN

907-B170-02 DRY DOCKING PLAN CALCULATIONS

B. GENERAL

The government will provide a dry-docking plan and calculations for the barges. Following the completed and approved incline results, the government shall update these drawings and reports reflecting the as-built condition and submit it (as 907-D170-01 and 907-D170-02). For additional requirements on drawing development and submission for review, see Section H12 of this contract.

The drydock blocking plan shall show the blocking for drydocking the barges. It shall show all major hull structure on the bottom, all transverse and longitudinal bulkheads connected to the bottom shell and any other features which could interfere with the setting and shifting of the docking blocks.

The drydock blocking plan shall include an alternate blocking arrangement to allow for the servicing of all areas of the bottom of the barges.

C185 TEST & TRIALS

Each barge and its component parts shall undergo tests and trials in accordance with Section E, Clause E05, Tests, Trials, & Demonstrations.

C200 ARRANGEMENTS

C215 GENERAL ARRANGEMENT

A. CONTRACT DRAWINGS

907-B205-01 OUTBOARD PROFILE

907-B215-01 GENERAL ARRANGEMENT

B. GENERAL

The configuration of the deck arrangement, and the bulkheads and subdivisions within the hull shall be as shown on the contract drawing.

C300 STRUCTURE

The hull steel plate shall be ABS Grade A steel. The steel structural shapes, stiffeners, and angles shall be ASTM A36 steel as shown on the contract drawings.

C301 WELD SCHEDULE

All welding and weld sizes shall be in accordance with ABS rules. Any area of welding not defined in the contract drawings shall be developed by the barge contractor and approved by ABS as required. All welding shall be performed in accordance with AWS and ABS specifications and procedures.

The contractor shall develop a weld schedule for the vessel design. The weld schedule shall be numbered 907-C301-01 and titled: WELD SCHEDULE. The documents shall be submitted to the Government for review and approval during Phase I. All welding and weld sizes shall be in accordance with ABS rules. Any area of welding not defined in the contract drawings shall be developed by the barge contractor and approved by ABS as required. All welding shall be performed in accordance with AWS and ABS specifications and procedures.

C305 HULL STRUCTURE

A. CONTRACT DRAWINGS

907-B307-01 DECK & BOTTOM PLATING

907-B307-02 SIDE SHELL PLATING

907-B309-01 TRANSVERSE STRUCTURE

907-B311-01 LONGITUDINAL STRUCTURE

907-B399-01 ABS CALCULATIONS

B. DESCRIPTION OF WORK

The hull shall be of all welded steel construction and divided into watertight compartments with transverse bulkheads as shown on the Contract Drawings. The contractor shall construct the hull as shown on the Contract Drawings. The Government does not require additional review for the hull structural drawings.

All welding and weld sizes shall be in accordance with the contract drawings and the applicable standards of the American Bureau of Shipping. Any area of welding not defined in the contract drawings shall be developed by the barge contractor and approved by ABS as required. All welding shall be performed in accordance with AWS and ABS specifications and procedures.

The shell and main deck plating shall be constructed of longitudinal strakes of lengths consistent with accepted practice for hulls. All seams shall be complete joint penetration welds (CJP), except the bilge radius and the deck edge, which shall be lap joints, joined with 100% weld, inside and out. Hull plating seams may not fall within 12 inches forward or aft of flat-of-bottom transverse tangent line (bottom rake), nor within 2 inches of a girder or plate stiffener. Seams shall not be aligned directly over bulkhead plating or over the webs of stiffeners and transverses.

When penetrations are made in watertight bulkheads, shell or deck, the plating shall be restored to watertight condition in accordance with the ABS Rules referenced in contract Clause C003.

All such penetrations and deck openings shall be suitably designed and reinforced in accordance with NSRP 0490 (referenced in contract Clause C003).

C399 ABS CALCULATIONS

A. CONTRACT DRAWINGS

907-B399-01 ABS CALCULATIONS

B. GENERAL

The Government has developed calculations for the structural design of the barges in accordance with the requirements of the ABS rules and does not require further review or revision.

C400 OUTFIT

C406 COATING SYSTEM

A. CONTRACT DRAWING

907-B406-01 PAINT SCHEDULE

B. GENERAL

The Contractor shall provide and install a coating system in accordance with the Contract Drawing. In addition to the color and thickness requirements identified in the Contract Drawing, the Contractor shall provide non-skid 36-mesh 0.3lbs/sq. ft. garnet grit on the exterior deck.

C. SURFACE PREPARATION

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.

D. PAINT REQUIREMENTS

Paint shall be delivered in sealed containers with labels to indicate manufacturer, date of manufacture, contents, and any special instructions. Paints and painting materials shall be stored under cover and protected from extreme temperatures.

Paints shall not be used if they have exceeded the closed shelf or pot life, recommended by the manufacturer. Additionally, paints shall not be applied in weather or humidity conditions that do not comply with the manufacturer’s recommendations.

E. APPLICATION OF COATINGS

Surface preparation and paint application shall be in strict compliance with the coating manufacturer’s recommendations. The contractor shall take particular care to ensure that coating system requirements are met in all areas, especially those difficult to coat, such as flange undersides. All painting on both the interior and exterior surfaces below the deck shall be accomplished prior to launching of each barge.

F. COATING SYSTEM

The system is composed of the following coating types:

Self-priming epoxy base coat

Abrasion resistant epoxy barrier coat

Fade resistant urethane top coat.

G. PRE-QUALIFIED COATINGS

Coating systems from PPG Amercoat, International Paint, Sherwin-Williams, Jotun, and Carboline have been reviewed and are pre-qualified to meet the coating requirements of this contract clause. The contractor may select any of these systems at his discretion. However, the systems may not be “mixed”. The specific coating designations to be used are listed on contract drawing.

If a pre-construction primer is used, only the pre-construction primers compatible with the pre-qualified coating system chosen will be accepted. The pre-construction primer shall be “weldable”, and the coating thickness recommended by the paint manufacturer shall be strictly followed.

H. NUMBER OF COATS & PAINT SCHEDULE

The number of coats is not specified. The contractor is required to provide the number of coats necessary to attain the DFT thicknesses in accordance with the contract drawing. Thickness applied per coat may not exceed the manufacturer’s recommended maximum thickness.

The contractor shall update and submit the 907-B406-01 drawing (submitted drawing shall be 907-C406-01 PAINT SCHEDULE) to list each coat to be applied to each area of the vessel, the paint manufacturer they have elected to use, the color to be applied and corresponding FS595 number, wet mils, dry mils, overcoat time, thinner, method of application, and tip size. Include any appropriate General Notes for painting.

I. COATING “TYPE” AND DFT SCHEDULE

The coating types and DFT for all areas of the vessel shall be in accordance with the contract drawing.

J. COATING COLOR SCHEDULE

Colors shall conform to Federal Standard No. 595B Colors Identification Numbers. The color book as well as individual paint chips (3” x 5”) may be procured from the General Services Administration/Federal Supply Service as follows:

E-Mail: www.fss.gsa.gov/pub/fedspecs/

GSA/Federal Supply Service Phone: (896) 605-2567

FSS Product Acquisition Center FAX: (896) 605-9856

Supply Standards Division (FLAS)

Arlington, VA 22202

The coloring schedule shall be as follows:

Hull Exterior – Below Waterline Black/17038

Hull Exterior – Above Waterline Black/17038

Hull Interior White/27800

Hull Markings White/27880

Exterior Decks Deck Red/10076

Handrails, Ladder Stringers and Rails Black/17038

Deck Fittings Yellow/13655

Caution, Safety Zones & All Tripping Hazards Yellow/13655

The “under coats” of all multiple coat applications (except the hull interior) shall be “contrast tinted” to ensure complete coverage of successive coats.

All top coating shall be thick enough to provide complete opaque color coverage. Thickness increased over the DFT minimums required above shall be provided if required for opaque color coverage.

Painted surfaces damaged in handling and installation shall be repainted.

K. CAUTION/SAFETY ZONES

During Construction, the COR will identify all caution and safety zones for the contractor to paint yellow.

A 6” wide yellow stripe shall be painted around the main deck perimeter of the vessel.

L. BARGE NUMBER MARKING

The barge number shall be painted on the deck in yellow, 4’ high letters. During Construction, the COR will provide the barge number and confirm the locations.

FINAL INSPECTION OF PAINTING

The contractor is responsible for delivering the vessel with all painted surfaces in sound condition, and in accordance with this specification.

Prior to launching of the vessel, all interior and exterior painting shall be thoroughly inspected.

Notice shall be given to the COR 14 days in advance of the scheduled launching for this purpose.

If there are any defects or damage in the coating of the vessel, the contractor shall repair the coating to restore the integrity of the paint system, and to meet the requirements of this specification. All damage shall be cleaned to bare metal, spot blasted to restore profile, and re-coated with the entire system schedule.

The vessel shall not be launched until:

The painting documentation as required in paragraph L below has been provided to the COR.

The documentation must show compliance with this specification in all areas, and all readings taken.

The painting has been inspected by an MDC representative and approved by the COR.

Contractor must provide documentation prior to the arrival of the MDC inspection.

If outfitting is required after launching, all interior and exterior painting shall be re-inspected prior to Provisional Acceptance, and any damaged areas of the coating shall be repaired by the contractor as necessary to restore the integrity of the paint system.

Any additional painting required as a result of the Final Inspection shall be done as required to meet this specification at no additional cost to the Government.

M. DOCUMENTATION & WARRANTY

1. Documentation

The contractor shall provide a written, signed statement from the paint manufacturer certifying that all coating application and surface preparation is in accordance with the coating system manufacturer’s requirements for the vessel, and that the coating application meets all requirements in this specification.

The contractor shall provide documentation logs for each coating applied. The logs shall include the following parameters.

a. Coating (per specification) type.

b. Coating manufacturer’s requirements for preparation, environmental conditions and application.

c. Date and time of preparation and application.

d. Extent and location of area coated.

e. Surface: preparation, condition at time of coating, temperature at time of coating, dew point at time of coating.

f. DFT measurements for each applied coating type. Measurements shall be taken as follows:

all flat surfaces, one reading per every 200-square feet, uniformly distributed, but a minimum of once per frame, per surface undersides of all flanges, one reading per every 50-linear feet of flange, uniformly distributed, but a minimum of two readings per surface, per compartment.

all free standing structural members, i.e. stanchions, truss diagonals, etc., one reading per 50-linear feet of length each surface, but a minimum of two readings per surface.

Wet film measurements may be taken and converted to DFT as an alternative to direct DFT. In areas where multiple coating types are required, the above DFT requirements are applied to each coating type.

g. Services provided by paint manufacturer’s representative (i.e. DFT readings, dew points, etc.) if present during the application.

h. Signature of paint manufacturer’s representative onsite, if present.

2. Warranty

For the vessel, the contractor shall warranty the coating system for one calendar year, commencing at Final Acceptance. The contractor shall repair any coating failures during this time period at their cost.

N. SAFETY & HEALTH STANDARDS

All surface preparation and coatings applications shall be in strict accordance with the U.S.

Occupational Safety and Health Administration Regulations (OSHA) for shipyard employees, engaged in surface preparation and coatings application as stated 29 CFR, 1915 Subpart B & C.

The regulations require that frequent testing of the atmosphere shall be made in compartments being coated or preserved (or prepared for coating or preservation) by paints and coatings dissolved in highly volatile, toxic and…