A22_W912EK24B0018_Amendment 0002.pdf

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 update Wage Rates, Schedule of Prices and Specifications. All other terms and conditions remain the same.

1. CONTRACT ID CODE PAGE OF PAGES

J 1 2

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

16C. DATE SIGNED

BY 04-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 W912EK24B0018

X 9B. DATED (SEE ITEM 11)

12-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 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

04-Sep-2024

CODE

CONTRACTING DIVISION

US ARMY CORPS OF ENGINEERS 1500 ROCK ISLAND D

ROCK ISLAND IL 61201

W912EK 7. ADMINISTERED BY (If other than item 6)

4. REQUISITION/PURCHASE REQ. NO.

CODE

See Item 6

FACILITY CODECODE

EMAIL:TEL:

24B0018

AMEND. 0002

The following modifications are made to the SCHEDULE OF PRICES, SECTION 01 20 00, SECTION 05 12 00, SECTION 05 50 13, SECTION 09 97 02, and SECTION 35 31 19.

SCHEDULE OF PRICES

a. ALL PAGES. Delete the Schedule of Prices in its entirety, and substitute therefor revised Schedule of Prices, Amendment 0002, dated 3 September 2024.

SECTION 01 20 00

b. PAGES 3 THROUGH 5. Delete Section 01 20 00 Pages 3 through 5, and substitute therefor revised Section 01 20 00 Pages 3 through , Amendment 0002, dated 3 September 2024.

SECTION 05 12 00

c. ALL PAGES. Delete Section 05 12 00 in its entirety and substitute therefor revised Section 05 12 00, Amendment 0002, dated 3 September 2024.

SECTION 05 50 13

d. PAGE 11. Delete Section 05 50 13 Page 11 and substitute therefor revised Section 05 50 13 Page 11, Amendment 0002, dated 3 September 2024.

SECTION 09 97 02

e. PAGE 24. Delete Section 09 97 02 Page 24 and substitute therefor revised Section 09 97 02 Page 24, Amendment 0002, dated 3 September 2024.

SECTION 35 31 19

f. PAGE 9. Delete Section 35 31 19 Page 9 and substitute therefor revised Section 35 31 19 Page 9, Amendment 0002, dated 3 September 2024.

ATTACHMENTS: Schedule of Prices; Section 01 20 00 Pages 3 through 5;

Section 05 12 00; Section 05 50 13 Page 11;

Section 09 97 02 Page 24; and Section 35 31 19 Page 9

B5MRPROJ202201 - Mississippi River Basin 2022 NESP Mooring Facilities

LD 11

Dubuque County, IA SCHEDULE OF PRICES

Solicitation No. W912EK24B0018

ITEM NO. SUPPLIES/SERVICES QUANTITY UNIT UNIT PRICE AMOUNT

0001 Mobilization and Demobilization 1 JOB XXXXXXXX $

0002 Mechanical Dredging/Excavation 236 CY $ $

0003 Sheetpile 3,750 LF $ $

0004 Mooring Cell Construction 1 JOB XXXXXXXX $

0005 Concrete 2,704 CY $ $

0006 Bedding Stone

0006AA First 1,105 Tons 1,105 TN $ $

0006AB Over 1,105 Tons 325 TN $ $

0007 Riprap

0007AA First 2,704 Tons 2,704 TN $ $

0007AB Over 2,704 Tons 795 TN $ $

CY = CUBIC YARD JOB = LUMP SUM LF = LINEAR FOOT

TN = TON

ENSURE UNIT PRICES AND AMOUNT LINES FOR ALL ITEMS ARE COMPLETED.

TOTAL OF AMOUNTS

(ITEM NOS. 0001 THROUGH 0007AB, INCL.)

AMEND. 0002

03 SEP 2024

Solicitation No. W912EK24B0018

1.2.1.2 Unit of Measure

Unit of measure: job.

1.2.2 Mooring Cell Construction

1.2.2.1 Payment

Payment for all costs associated with constructing a mooring cell including, but not limited to, metal fabrication, concrete work, temporary bracing, painting, electrical work, navigation lighting, one subsurface geotechnical drilling sample, and incidentals (exclusive of sheet piling work and concrete placement) will be made for Item No. 0004, "Mooring Cell Construction."

1.2.2.2 Unit of Measure

Unit of measure: job.

1.3 UNIT PRICE PAYMENT ITEMS

Payment items for unit price payments will be made in the SCHEDULE OF PRICES and as specified. The unit price and payment made for each item will constitute full compensation for furnishing all plant, labor, materials, and equipment, and performing any associated quality control, environmental protection, meeting safety requirements, tests and reports, and for performing all work required for each unit price item.

1.3.1 Mechanical Dredging/Excavation

1.3.1.1 Payment

Payment for all costs associated with the subsurface exploration, mechanical dredging excavation, transportation to disposal site, maintaining disposal site, and incidentals will be made for Item No. 0002, "Mechanical Dredging/Excavation."

1.3.1.2 Measurement

Quantity of dredging materials will be in number of cubic yards excavated.

The material removed to be measured using either the surface difference method or end area method using the preliminary and final surveys.

1.3.1.3 Unit of Measure

Unit of measure: cubic yard.

1.3.2 Sheetpile

1.3.2.1 Payment

Payment for all costs associated with sheet piling work will be made for Item No. 0003, "Sheetpile."

1.3.2.2 Measurement

The linear footage will be determined by multiplying the number of piles times the measured length acceptably driven below the cut-off elevation as

SECTION 01 20 00 Page 3 AMEND. 0002

03 SEP 2024

indicated. Measurement will be made for the nearest full linear foot acceptably installed. The length of each pile driven will be measured to the nearest tenth of a linear foot.

1.3.2.3 Unit of Measure

Unit of measure: linear foot.

1.3.3 Concrete

1.3.3.1 Payment

Payment for all costs associated with providing formwork, reinforcing, concrete, and incidentals will be made for Item No. 0005, "Concrete."

1.3.3.2 Measurement

The quantity of concrete to be paid for in cubic yards, placed in the completed and accepted construction. Concrete will be measured in place in the field by the Contractor within the mooring cell and to the paylines indicated on the exterior of the mooring cell, as approved by the Contracting Officer. The quantity of concrete will be that actually used and accepted in the construction.

1.3.3.3 Unit of Measure

Unit of measure: cubic yard.

1.3.4 Bedding Stone

1.3.4.1 Payment

Payment for all costs associated with providing and surveying bedding stone in accordance with Section 35 31 19 STONE, CHANNEL, SHORELINE/COASTAL PROTECTION FOR STRUCTURES and Section 02 21 00 SURVEYS will be made for:

Item No. 0006AA, "Bedding Stone, First 1,105 Tons;" and

Item No. 0006AB, "Bedding Stone, Over 1,105 Tons;" as applicable.

No payment will be made for material wasted, used for the convenience of the Contractor, unused, or rejected. The Government will pay up to 80 percent of the total tonnage used without Final Surveys verifying design has been met. Final Payment will be made after Final Surveys are completed and work is accepted.

1.3.4.2 Measurement

Bedding stone will be in number of tons, weighed on approved scales in the presence of a Government inspector, accepted in the completed work. Weight certificates furnished by a public weighmaster will be acceptable in lieu of weighing as specified when authorized by the Contracting Officer.

1.3.4.3 Unit of Measure

Unit of measure: ton.

SECTION 01 20 00 Page 4 AMEND. 0002

03 SEP 2024

1.3.5 Riprap

1.3.5.1 Payment

Payment for all costs associated with providing and surveying riprap, in accordance with Section 35 31 19 STONE, CHANNEL, SHORELINE/COASTAL PROTECTION FOR STRUCTURES and Section 02 21 00 SURVEYS will be made for:

Item No. 0007AA, "Riprap, First 2,704 Tons;" and

Item No. 0007AB, "Riprap, Over 2,704 Tons;" as applicable.

No payment will be made for material wasted, used for the convenience of the Contractor, unused, or rejected. The Government will pay up to 80 percent of the total tonnage used without Final Surveys verifying design has been met. Final payment will be made after Final Surveys are completed and work is accepted.

1.3.5.2 Measurement

Riprap will be in number of tons, weighed on approved scales in the presence of a Government inspector, accepted in the completed work. Weight certificates furnished by a public weighmaster will be acceptable in lieu of weighing as specified when authorized by the Contracting Officer.

1.3.5.3 Unit of Measure

Unit of measure: ton.

PART 2 PRODUCTS

Not Used

PART 3 EXECUTION

Used

SECTION 01 20 00 Page 5 AMEND. 0002

PAYMENT FOR MATERIALS DELIVERED OFF-SITE 3.1

(a) Pursuant to Federal Acquisition Regulations (FAR) 52.232-5, Payments

Under Fixed Price Construction Contracts, materials delivered to the contractor at locations other than the site of work may be taken into consideration in making payments if included in payment estimates and if all the conditions of the General Provision are fulfilled. Payment for items delivered to locations other than the work site shall be limited to:

(1) Material required by the technical provisions; or

(2) Materials that have been fabricated to the point where they are identifiable to an item of work required under the contractor.

(b) Payment for materials for delivered off-site shall be made only after receipt of paid invoices listing the value of materials and labor incorporated in the items along with a canceled check showing the prime contractor's title to the items delivered of site.

Partial progress payments may be made to the Contractor for materials, fabrication, and shop assembly. Payment may be made provided the materials have been accepted by the Contracting Officer, properly stored by the

Contractor, and provided that satisfactory evidence is furnished in

1.3.5 Riprap

1.3.5.1 Payment

AMEND. 0002

03 SEP 2024

accordance with FAR 52.232-16 PROGRESS PAYMENTS, that the Contractor has acquired title to such material and will be utilized on the work covered by this Contract. Such partial progress payments may be individually made as the work progresses on the following basis. Payments may be made on a milestone basis for completion of assemblies or subassemblies under the bid item, but not more frequently than monthly, Develop a schedule of values itemizing the cost of assemblies/subassemblies and the milestones at which payment will be requested. The schedule of values must be submitted for Government approval.

The schedule of values may include milestones such as (but not limited to):

shop drawings approved; materials received; fit-up complete; final assembly complete; delivery and witness points. Retainage of 20 percent of the bid item price will be withheld from payment until Government acceptance of the complete assembly at the final delivery point. All requests for payment must include the schedule of values indicating which items and corresponding milestones are being invoiced.milestones are being invoiced.

-- End of Section --

SECTION 01 20 00 Page 6

SECTION TABLE OF CONTENTS

DIVISION 05 - METALS

SECTION 05 12 00

STRUCTURAL STEEL

PART 1 GENERAL

1.1 REFERENCES

1.2 SUBMITTALS

1.3 AISC QUALITY CERTIFICATION

1.4 QUALITY ASSURANCE

1.4.1 Fabrication Drawings

1.4.2 Welding Procedures

1.5 STORAGE

PART 2 PRODUCTS

2.1 SYSTEM DESCRIPTION

2.2 STEEL

2.2.1 Structural Steel

2.2.2 Structural Steel Tubing

2.2.3 Steel Pipe

2.3 BOLTS, NUTS, AND WASHERS

2.3.1 Bolts

2.3.2 Nuts

2.3.3 Self-Locking Nuts

2.3.4 Washers

2.3.5 High-Strength Bolts

2.3.5.1 Bolts

2.3.5.2 Nuts

2.3.5.3 Washers

2.4 STRUCTURAL STEEL ACCESSORIES

2.4.1 Welding Electrodes and Rods

2.4.2 Non-Shrink Grout

2.4.3 Welded Shear Stud Connectors

2.5 GALVANIZING

2.6 FABRICATION

2.7 DRAINAGE HOLES

PART 3 EXECUTION

3.1 CONNECTIONS

3.2 WELDING

3.3 SHOP PRIMER REPAIR

3.4 GALVANIZING REPAIR

3.5 FIELD AND SHOP QUALITY CONTROL

3.5.1 Visual Inspection Welds

3.5.2 High-Strength Bolts

3.5.2.1 Testing Bolt, Nut, and Washer Assemblies

3.5.2.2 Inspection

3.5.2.3 Testing

SECTION 05 12 00 Page 1 AMEND. 0002

3.5.3 Testing for Embrittlement

-- End of Section Table of Contents --

SECTION 05 12 00 Page 2 AMEND. 0002

SECTION 05 12 00

STRUCTURAL STEEL

PART 1 GENERAL

1.1 REFERENCES

The publications listed below form a part of this specification to the extent referenced. The publications are referred to within the text by the basic designation only.

AMERICAN INSTITUTE OF STEEL CONSTRUCTION (AISC)

AISC 325 (2011; E 2015) Steel Construction Manual

AISC 326 (2009) Detailing for Steel Construction

AISC 360 (2016) Structural Steel Buildings

AMERICAN WELDING SOCIETY (AWS)

AWS A2.4 (2012) Standard Symbols for Welding, Brazing and Nondestructive Examination

AWS D1.1/D1.1M (2020; Errata 1 2021) Structural Welding Code - Steel

AMERICAN SOCIETY OF MECHANICAL ENGINEERS (ASME)

ASME B46.1 (2020) Surface Texture, Surface Roughness, Waviness and Lay

ASTM INTERNATIONAL (ASTM)

ASTM A1085 (2015) Cold-Formed Welded Carbon Steel Hollow Structural Sections (HSS)

ASTM A123/A123M (2017) Standard Specification for Zinc (Hot-Dip Galvanized) Coatings on Iron and Steel Products

ASTM A143/A143M (2007; R 2014) Safeguarding Against Embrittlement of Hot-Dip Galvanized Structural Steel Products and Procedure for Detecting Embrittlement

ASTM A29/A29M (2016) Steel Bars, Carbon and Alloy, Hot-Wrought

ASTM A36/A36M (2019) Standard Specification for Carbon Structural Steel

ASTM A252/A252M (2019) Standard Specification for Welded and Seamless Steel Pipe Piles

SECTION 05 12 00 Page 3 AMEND. 0002

03 SEP 2024

ASTM A500/A500M (2013) Cold-Formed Welded and Seamless Carbon Steel Structural Tubing in Rounds and Shapes

ASTM A563 (2015) Standard Specification for Carbon and Alloy Steel Nuts

ASTM A6/A6M (2021) Standard Specification for General Requirements for Rolled Structural Steel Bars, Plates, Shapes, and Sheet Piling

ASTM A780/A780M (2020) Standard Practice for Repair of Damaged and Uncoated Areas of Hot-Dip Galvanized Coatings

ASTM A992/A992M (2020) Standard Specification for Structural Steel Shapes

ASTM C1107/C1107M (2020) Standard Specification for Packaged Dry, Hydraulic-Cement Grout (Nonshrink)

ASTM C827/C827M (2016) Change in Height at Early Ages of Cylindrical Specimens of Cementitious Mixtures

ASTM F2329/F2329M (2015) Zinc Coating, Hot-Dip, Requirements for Application to Carbon and Alloy Steel Bolts, Screws, Washers, Nuts, and Special Threaded Fasteners

ASTM F3125/F3125M (2019) Standard Specification for High Strength Structural Bolts and Assemblies, Steel and Alloy Steel, Heat Treated, Inch Dimensions 120 ksi and 150 ksi Minimum Tensile Strength, and Metric Dimensions 830 MPa and 1040 MPa Minimum Tensile Strength

ASTM F436/F436M (2016) Hardened Steel Washers

ASTM F844 (2019) Standard Specification for Washers, Steel, Plain (Flat), Unhardened for General Use

U.S. DEPARTMENT OF DEFENSE (DOD)

UFC 3-301-01 (2019, with Change 1, 2022) Structural Engineering

1.2 SUBMITTALS

Government approval is required for submittals with a "G" designation;

submittals not having a "G" designation are for information only. When used, a designation following the "G" designation identifies the office that will review the submittal for the Government. Submit the following in accordance with Section 01 33 00 SUBMITTAL PROCEDURES:

SD-02 Shop Drawings

SECTION 05 12 00 Page 4 AMEND. 0002

Fabrication Drawings; G ECDS

Include description of connections.

SD-03 Product Data

Shop Primer

SD-06 Test Reports

Bolt Testing Reports; G ECDS (Engineering and Construction - Design Branch - Structural Engineering Section)

Embrittlement Test Reports; G ECDS

SD-07 Certificates

AISC Fabrication Plant Quality Certification

Welding Procedures

Steel

Bolts, Nuts, and Washers; G ECDS

Structural Steel Accessories; G ECDS

Galvanizing

1.3 AISC QUALITY CERTIFICATION

Fabricate in an AISC Certified Fabrication Plant, Category Standard. Submit AISC fabrication plant quality certification.

1.4 QUALITY ASSURANCE

1.4.1 Fabrication Drawings

Submit fabrication drawings prepared in accordance with AISC 326 and AISC 325. Fabrication drawings are not to be reproductions of Contract drawings. Sign and seal fabrication drawings by a registered professional engineer. Include complete information for the fabrication and erection of the structure's components, including the location, type, and size of bolts, welds, member sizes and lengths, connection details, blocks, copes, and cuts. Use AWS A2.4 standard welding symbols. Any deviations from the details shown to be clearly highlighted on the fabrication drawings.

Explain the reasons for any deviations from the Contract drawings.

1.4.2 Welding Procedures

Weld in accordance with AWS D1.1/D1.1M.

1.5 STORAGE

Store material out of contact with the ground in such manner and location as will minimize deterioration.

SECTION 05 12 00 Page 5 AMEND. 0002

PART 2 PRODUCTS

2.1 SYSTEM DESCRIPTION

Provide the structural steel system, including galvanizing, complete and ready for use. Structural steel systems including design, materials, workmanship, fabrication, inspection, quality control, and testing in accordance with AISC 360 and UFC 3-301-01 except as modified.

2.2 STEEL

2.2.1 Structural Steel

Provide wide flange and WT shapes in accordance with ASTM A992/A992M.

Provide angles, channels, and plates in accordance with ASTM A36/A36M.

2.2.2 Structural Steel Tubing

Provide in accordance with ASTM A500/A500M, Grade C and ASTM A1085.

2.2.3 Steel Pipe

Provide in accordance with ASTM A252/A252M, Grade 3.

2.3 BOLTS, NUTS, AND WASHERS

Submit the certified manufacturer's mill reports which clearly show the applicable ASTM mechanical and chemical requirements together with the actual test results for the supplied fasteners.

2.3.1 Bolts

Provide heads and nuts as marked with the manufacturer's identification mark, the strength grade and type specified by ASTM specifications.

2.3.2 Nuts

Provide in accordance with ASTM A563, Grade A, heavy hex style.

2.3.3 Self-Locking Nuts

Provide nuts with a locking pin set in the nut. The locking pin to slide along the bolt threads, and by reversing the direction of the locking pin, remove the nut without damaging the nut or bolt. Provide stainless steel locking pins.

2.3.4 Washers

Provide in accordance with ASTM F844.

2.3.5 High-Strength Bolts

2.3.5.1 Bolts

Provide in accordance with ASTM F3125/F3125M, Grade A490, Type 1.

2.3.5.2 Nuts

Provide in accordance with ASTM A563, Grade and style as specified in the

SECTION 05 12 00 Page 6 AMEND. 0002 applicable ASTM bolt standard.

2.3.5.3 Washers

Provide in accordance with ASTM F436/F436M, plain carbon steel.

2.4 STRUCTURAL STEEL ACCESSORIES

2.4.1 Welding Electrodes and Rods

Weld in accordance with AWS D1.1/D1.1M.

2.4.2 Non-Shrink Grout

Provide in accordance with ASTM C1107/C1107M, with no ASTM C827/C827M shrinkage. Provide nonmetallic grout.

2.4.3 Welded Shear Stud Connectors

Provide in accordance with ASTM A29/A29M, Type B and AWS D1.1/D1.1M.

2.5 GALVANIZING

Provide in accordance with ASTM F2329/F2329M for threaded parts or ASTM A123/A123M for structural steel members, as applicable, unless specified otherwise galvanize after fabrication where practicable.

2.6 FABRICATION

Accomplished in accordance with AISC 325. Fabrication and assembly will be completed in the shop to the greatest extent possible. Punch, subpunch, and ream, or drill bolt and pin holes perpendicular to the surface of the member.

Compression joints depending on contact bearing to have a surface roughness not in excess of 500 micro inch in accordance with ASME B46.1, and ends to be square within the tolerances for milled ends in accordance with

ASTM A6/A6M.

Shop splices of members between field splices will be permitted only where indicated. Splices not indicated require the approval of the Contracting Officer.

Splicing truss top and bottom chords is prohibited. Provide chord splices at panel joints at approximately the third point of the span. The center of gravity lines of truss members to intersect at panel points, unless otherwise approved by the Contracting Officer. When the center of gravity lines do not intersect at a panel point, make provisions for the stresses due to eccentricity. Provide camber of trusses to be 1/8 inch in 10 feet unless otherwise indicated.

Provide surface finish in accordance with ASME B46.1 with maximum surface roughness of 125 for pin, pinholes, and sliding bearings, unless indicated otherwise.

2.7 DRAINAGE HOLES

Drill adequate drainage holes to eliminate water traps. Hole diameter as 1/2 inch and indicate location as indicated on the shop drawings. Hole size

SECTION 05 12 00 Page 7 AMEND. 0002 and location not to affect the structural integrity.

PART 3 EXECUTION

3.1 CONNECTIONS

Except as otherwise specified, design connections not detailed in accordance with AISC 360. Build connections into existing work. Holes are not to be cut or enlarged by burning. Clean bolts, nuts, and washers of dirt and rust, and lubricate immediately prior to fabrication.

3.2 WELDING

Grind exposed welds smooth as indicated. Provide AWS D1.1/D1.1M qualified welders, welding operators, and tackers. Develop and submit the Welding Procedure Specifications (WPS) for all welding, including welding done using prequalified procedures. Prequalified procedures may be submitted for information only; however, submit procedures that are not prequalified for approval. Removal of temporary welds, run-off plates, and backing strips only from finished areas.

3.3 SHOP PRIMER REPAIR

Repair shop primer in accordance with the paint manufacturer's recommendation for surfaces damaged by handling, transporting, cutting, welding, or bolting.

3.4 GALVANIZING REPAIR

Repair damage to galvanized coatings in accordance with ASTM A780/A780M zinc rich paint for galvanizing damaged by handling, transporting, cutting, welding, or bolting. Do not heat surfaces to which repair paint has been applied.

3.5 FIELD AND SHOP QUALITY CONTROL

Perform field tests. Notify in writing of defective welds, bolts, nuts, and washers within 7 working days of the date of the inspection.

3.5.1 Visual Inspection Welds

Conform to the requirements shown and as specified herein and in Section

05 50 13 - MISCELLANEOUS METAL FABRICATIONS.

3.5.2 High-Strength Bolts

3.5.2.1 Testing Bolt, Nut, and Washer Assemblies

Test a minimum of 3 bolts, nuts, and washers assemblies from each mill certificate batch in a tension measuring device at the job site prior to the beginning of bolting start-up. Demonstrate that the bolts and nuts, when used together, can develop tension not less than the provisions in accordance with AISC 360, depending on bolt size and grade. Develop the tight bolt tension of the nut. A representative of the manufacturer or supplier to be present to ensure that the fasteners are properly used, and to demonstrate that the fastener assemblies supplied satisfy the specified requirements. Submit bolt testing reports.

SECTION 05 12 00 Page 8 AMEND. 0002

03 SEP 2024

3.5.2.2 Inspection

In accordance with AISC 360. Confirm and report that the materials are as specified and that they are properly stored. Confirm that the faying surfaces have been properly prepared before the connections are assembled.

Observe the site testing and calibration, and confirm the procedure used provides the required tension. Monitor the work to ensure the testing procedures are routinely followed on joints specified to be fully tensioned. Inspect calibration of torque wrenches for high-strength bolts.

3.5.2.3 Testing

The Government has the option to perform nondestructive tests on 5 percent of the installed bolts to verify compliance with pre-load bolt tension requirements. Provide the required access for the Government to perform the tests. Complete the nondestructive testing in-place using an ultrasonic measuring device or any other device capable of determining in-place pre-load bolt tension. The test locations will be selected by the Contracting Officer. If more than 10 percent of the bolts tested contain defects identified by testing, then all bolts used from the batch from which the tested bolts were taken, will be tested at the Contractor's expense. Retest new bolts after installation at the Contractor's expense.

3.5.3 Testing for Embrittlement

Test in accordance with ASTM A143/A143M for steel products hot-dip galvanized after fabrication. Submit embrittlement test reports.

-- End of Section --

SECTION 05 12 00 Page 9 AMEND. 0002

3.3.2 Production Welding

Production welding in accordance with AWS D1.1/D1.1M, AWS D1.2/D1.2M, or AWS D1.5/D1.5M, as applicable. Perform preproduction testing on studs welded in the same general position as required on production items (flat, vertical, overhead, or sloping). Test and production stud welding will be subjected to visual examination or inspection. If the reduction of the length of studs becomes less than normal as they are welded, stop welding immediately and do not resume until the cause has been corrected. Shop and field welds are subject to nondestructive examination as follows:

a. Full penetration welds to be tested at a rate of 10 percent of all welds.

b. Fillet welds to be tested at a rate of 10 percent of all welds.

-- End of Section --

SECTION 05 50 13 Page 11 AMEND. 0002

03 SEP 2024

b. Surface preparation operations performed, including the area of the structure involved, the mode of preparation, the kinds of solvent, abrasive, or power tools employed, and whether contract requirements were met.

c. Thinning operations performed, including thinners used, batch numbers, and thinner/paint volume ratios.

d. Application operations performed, including the area of the structure involved, mode of application employed, ambient temperature, substrate temperature, dew point, relative humidity, type of paint with batch numbers, elapsed time between surface preparation and application, elapsed time for recoat, condition of underlying coat, number of coats applied, and if specified, measured dry film thickness or spreading rate of each new coating.

3.5 PAINTING SCHEDULES

SYSTEM NO. 5-E-Z

Items or surfaces to be coated:

Armor Checkposts Kevels

SURFACE

PREPARATION

1st COAT 2nd COAT 3rd COAT 4th COAT 5th COAT

ARMOR:

White metal blast cleaning

Vinyl zinc-rich

VZ-108D

(double spray coat)

Gray Vinyl V-766E (double spray coat)

White Vinyl V-766E (double spray coat)

Gray Vinyl V-766E (double spray coat)

None

CHECKPOSTS:

White metal blast cleaning

Vinyl zinc-rich

VZ-108D

(double spray coat)

Gray Vinyl V-766E (double spray coat)

White Vinyl V-766E (double spray coat)

Gray Vinyl V-766E (double spray coat)

SSPC Paint 38 Finish Color (safety yellow)

KEVELS:

White metal blast cleaning

Vinyl zinc-rich

VZ-108D

(double spray coat)

Gray Vinyl V-766E (double spray coat)

White Vinyl V-766E (double spray coat)

Gray Vinyl V-766E (double spray coat)

SSPC Paint 38 Finish Color (safety yellow)

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SECTION 09 97 02 Page 24 AMEND. 0002

03 SEP 2024

NEATLINE TOLERANCES

MATERIAL ABOVE NEATLINE (inches) BELOW NEATLINE (inches)

Riprap 6 3

Bedding 2 0

Remove or rework placed material as needed not meeting these limits as directed by the Contracting Officer. Payment will not be made for excess material.

PART 2 PRODUCTS

2.1 BEDDING MATERIAL

2.1.1 General

Submit the source for materials used in bedding. Provide bedding material consisting of crushed stone. Submit test reports attesting that the bedding material meet specified requirements

2.1.2 Material

Ensure bedding material is composed of tough, durable particles, adequately free from thin, flat and elongated pieces, and contains no organic matter nor soft, friable particles in quantities considered objectionable by the Contracting Officer. Provide aggregates meeting the quality requirements of ASTM C33/C33M or paragraph REGULATORY REQUIREMENTS. Use gradation conforming to the following requirements: Illinois Department of Transportation Gradation CA 3 or Government approved equivalent.

Perform at least one test on each 1000 tons to be delivered to the project site for each specified gradation in accordance with ASTM C136/C136M.

Ensure all points on individual grading curves obtained from representative samples of bedding material lie between the boundary limits as defined by smooth curves drawn through the tabulated gradation limits plotted on ENG FORM 2087 or similar form. The individual gradation curves within these limits are not allowed to exhibit abrupt changes in slope denoting either gap grading or scalping of certain sizes or other irregularities which would be detrimental to the proper functioning of the bedding layers.

2.2 STONE

2.2.1 General

2.2.1.1 Evaluation Testing of Stone

If the Contractor proposes to furnish stone from an unlisted source, have evaluation tests performed on stone samples collected from the proposed source. Perform quarry investigation by a registered geologist or registered engineer. Subject the stone to tests which include petrographic examination (ASTM C295/C295M), bulk specific gravity (SSD),unit weight, absorption (ASTM C127), resistance of stone to freezing and thawing ( COE CRD-C 144 and ASTM D5312/D5312M), and if argillaceous limestone and sandstone are used, resistance to wetting and drying (ASTM D5313/D5313M).

Use laboratory to perform the required testing that is validated based on relevant paragraphs of ASTM D3740; no work requiring testing is permitted

SECTION 35 31 19 Page 9 AMEND. 0002