Solicitation W912P820B0046.pdf

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Attached to
Catfish Point Control Structure, Sector Gate Replacement Federal contract opportunity
Solicitation number
W912P820B0046
Issued by
Department of the Army Corps of Engineers Engineering District New Orleans

About this file

This federal contract opportunity notice provides details for solicitation number W912P820B0046 regarding sector gate replacements at the Catfish Point Control Structure. The solicitation will be issued on May 20, 2020 as a 100% small business set-aside seeking fixed price bids due by June 19, 2020. The scope of work includes fabricating and delivering three new sets of sector gates with two leaves per set as well as diving services to verify gate dimensions. The estimated period of performance is 750 calendar days from award. Interested vendors are advised to monitor the beta.sam.gov website for solicitation documents and amendments.

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B01_Bid Abstract.pdf PDF
A21-Amendment 0005.pdf PDF
A21 - Amendment 0004.pdf PDF
A21 - Amendment 0003..pdf PDF
A21 - Amendment 0002..pdf PDF
A21 - Amendment 0001..pdf PDF
Final Plans.pdf PDF

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CODE

(Hour)

PAGE(S)

until local time

A B C D

EX

X G F

H

RATING PAGE OF PAGES

7. ISSUED BY

(Date)

IMPORTANT - Award will be made on this Form, or on Standard Form 26, or by other authorized official written notice.

Previous Edition is Unusable 33-134 STANDARD FORM 33 (REV. 9-97)

Prescribed by GSA FAR (48 CFR) 53.214(c)

(If other than Item 7)

15A. NAME 16. NAME AND TITLE OF PERSON AUTHORIZED TO

AND

ADDRESS

SIGN OFFER (Type or print)

OF

OFFEROR

AMENDMENT NO. DATE

15B. TELEPHONE NO (Include area code) 17. SIGNATURE15C. CHECK IF REMITTANCE ADDRESS

IS DIFFERENT FROM ABOVE - ENTER

SUCH ADDRESS IN SCHEDULE.

18. OFFER DATE

1. THIS CONTRACT IS A RATED ORDER

UNDER DPAS (15 CFR 700)

2. CONTRACT NO.

8. ADDRESS OFFER TO

See Item 7

9. Sealed offers in original and copies for furnishing the supplies or services in the Schedule will be received at the place specified in Item 8, or if handcarried, in the depository located in

CAUTION - LATE Submissions, Modifications, and Withdrawals: See Section L, Provision No. 52.214-7 or 52.215-1. All offers are subject to all terms and conditions contained in this solicitation.

10. FOR INFORMATION

CALL:

A. NAME (NO COLLECT CALLS)

11. TABLE OF CONTENTS

SOLICITATION/ CONTRACT FORM

SUPPLIES OR SERVICES AND PRICES/ COSTS

I CONTRACT CLAUSES

DESCRIPTION/ SPECS./ WORK STATEMENT

PACKAGING AND MARKING

J LIST OF ATTACHMENTS

INSPECTION AND ACCEPTANCE

DELIVERIES OR PERFORMANCE

K

REPRESENTATIONS, CERTIFICATIONS AND

OTHER STATEMENTS OF OFFERORS

CONTRACT ADMINISTRATION DATA

SPECIAL CONTRACT REQUIREMENTS

OFFER (Must be fully completed by offeror) M

L INSTRS., CONDS., AND NOTICES TO OFFERORS

EVALUATION FACTORS FOR AWARD

NOTE: Item 12 does not apply if the solicitation includes the provisions at 52.214-16, Minimum Bid Acceptance Period.

is inserted by the offeror) from the date for receipt of offers specified above, to furnish any or all items upon which prices are offered at the price set opposite each item, delivered at the designated point(s), within the time specified in the schedule.

13. DISCOUNT FOR PROMPT PAYMENT

(See Section I, Clause No. 52.232-8)

14. ACKNOWLEDGMENT OF AMENDMENTS

(The offeror acknowledges receipt of amendments

AMENDMENT NO. DATE

to the SOLICITATION for offerors and related documents numbered and dated):

FACILITY

12. In compliance with the above, the undersigned agrees, if this offer is accepted within calendar days (60 calendar days unless a different period

SOLICITATION, OFFER AND AWARD

X

(X) SEC. DESCRIPTION (X) SEC. DESCRIPTION PAGE(S)

PART I - THE SCHEDULE

26. NAME OF CONTRACTING OFFICER (Type or print) 27. UNITED STATES OF AMERICA 28. AWARD DATE

EMAIL:TEL: (Signature of Contracting Officer)

CODE CODE

B. TELEPHONE (Include area code) C. E-MAIL ADDRESS

AWARD (To be completed by Government)

19. ACCEPTED AS TO ITEMS NUMBERED 20. AMOUNT 21. ACCOUNTING AND APPROPRIATION

22. AUTHORITY FOR USING OTHER THAN FULL AND OPEN COMPETITION:

10 U.S.C. 2304(c)( ) 41 U.S.C. 253(c)( ) (4 copies unless otherwise specified)

23. SUBMIT INVOICES TO ADDRESS SHOWN IN ITEM

24. ADMINISTERED BY (If other than Item 7) CODE 25. PAYMENT WILL BE MADE BY CODE

PART IV - REPRESENTATIONS AND INSTRUCTIONS

PART III - LIST OF DOCUMENTS, EXHIBITS AND OTHER ATTACHMENTS

PART II - CONTRACT CLAUSES

FAX:

TEL:

NOTE: In sealed bid solicitations "offer" and "offeror" mean "bid" and "bidder".

SOLICITATION

6. REQUISITION/PURCHASE NO.5. DATE ISSUED4. TYPE OF SOLICITATION

SEALED BID (IFB)

NEGOTIATED (RFP)

[ X ]

3. SOLICITATION NO.

W912P820B0046

U.S. Army Corps of Engineers, Contracting Division Attn: CEMVN-CT-E, Room 172 7400 Leake Avenue New Orleans, LA 70118-3651

05/20/2020

2:00pm 06/19/2020

Anedra Baldwin (504) 862-1754 anedra.a.baldwin@usace.army.mil

X X

X

X

X

X

Please refer to Instructions to Bidders on Pages 248-249.

1 250

4-134

135-147 148-164

165-174

175-200

209-244

245-250

W912P8

MTC-i ED 19-051

MAIN TABLE OF CONTENTS

Section B – SUPPLIES OR SERVICES AND PRICES/COSTS

Section C – TECHNICAL SPECIFICATIONS

C1 Sector Gates C1-1 thru 12

C2 Fabrication of Hydraulic Steel Structures C2-1 thru 19

C3 Metalwork Fabrication, Machine Work, and Miscellaneous Provisions C3-1 thru 21

C4 Painting Hydraulic Structures C4-1 thru 11

C5 Self-Lubricated Materials, Fabrication, Handling and Assembly C5-1 thru 8

C6 Cathodic Protection Systems (Impressed Current) C6-1 thru 7

C7 Submittal Procedures C7-1 thru 5

C8 Closeout Submittals C8-1 thru 3

C9 Network Analysis Schedules (NAS) C9-1 thru 6

C10 Resident Management System Contractor Mode (RMS CM) C10-1 thru 4

C11 Diving Services C11-1 thru 5

Section E – INSPECTION AND ACCEPTANCE

Section F – DELIVERIES OR PERFORMANCE

Section H – SPECIAL CONTRACT REQUIREMENTS

Section I – CONTRACT CLAUSES

Section J – LIST OF DOCUMENTS, EXHIBITS AND OTHER ATTACHMENTS

W912P820B0046

B ED 19-051

SECTION B – SUPPLIES OR SERVICES AND PRICES/COSTS

Mermenatu River Catfish Point Control Structure

Sector Gate Replacement Cameron Parish, Louisiana

ITEM DESCRIPTION QUANTITY U/M U/P AMOUNT

0001 Sector Gate Leaves – Gate 1 02 EA

0002 Sector Gate Leaves - Gates 2 and 3 04 EA

0003 Delivery of Gate 1 to Catfish Point 01 JOB

0004 Delivery of Gates 2 and 3 01 JOB to Catfish Point

0005 Diving Services 01 JOB

TOTAL:

Award will be made as a whole to one bidder.

NOTE 1: Bidders shall furnish unit prices for each items listed in the Schedule of bid items which require unit prices. If the bidder fails to insert a unit price in the appropriate blank for required item(s), but does furnish an extended total, or an estimated amount for such items), the Government shall deem the unit price to be the quotient obtained by dividing the extended amount for that line item by the quantity. IF A BIDDER OMITS BOTH THE UNIT PRICE AND THE

EXTENDED TOTAL OR ESTIMATED AMOUNT FOR ANY ITEM, ITS BID SHALL BE

DECLARED NON-RESPONSIVE AND THEREFORE INELIGIBLE FOR AWARD.

NOTE 2: THE NOTICE TO PROCEED (NTP): The successful bidder is advised that performance and payment bonds shall be submitted in accordance with the time frame in block 12B of SF 1442 after Notice of Award. The NTP will be issued immediately after verification of acceptable performance and payment bonds. Within seven (7) days after issuance of the NTP, the Contractor shall initiate a meeting to discuss the submittal process with the Area or Resident Engineer or his authorized representative. Physical work cannot start until the Accident Prevention Program, Contractor Quality Control Plan, and other submittals which may be required, have been submitted and approved and all preliminary meetings called for under the contract, have been conducted.

NOTE 3. U/M = UNIT MEASUREMENT; U/P = UNIT PRICE

SECTION TABLE OF CONTENTS

DIVISION 01 - GENERAL REQUIREMENTS

C1 - SECTOR GATES

PART 1 GENERAL

1.1 SCOPE

1.2 REFERENCES

1.3 SUBMITTALS

1.4 QUALITY ASSURANCE

1.4.1 Qualification of Welders

1.4.2 Detail Drawings

1.4.2.1 Fabrication Drawings

1.4.2.2 Shop Assembly Drawings

1.4.2.3 Delivery Drawings

1.4.2.4 Storage Drawings

1.4.3 Handrail Fabrication Drawings

1.4.4 Guardrail Manufacturer's Certification

1.5 DELIVERY, STORAGE, AND HANDLING

1.5.1 Materials and Fabricated Items

1.5.2 Rubber Seals

1.5.3 Gate Leaf Lift Plan

1.6 FIELD VERIFICATION NOTES

PART 2 PRODUCTS

2.1 MATERIALS

2.1.1 Metals

2.1.1.1 Structural Steel Shapes

2.1.1.2 Structural Steel Plates

2.1.1.3 Steel Pipe

2.1.1.4 Steel Tubing

2.1.1.5 Stainless Steel Bars and Shapes

2.1.1.6 Stainless Steel Plate, Sheet, and Strip

2.1.2 Steel Castings

2.1.3 Aluminum Grating

2.1.4 Aluminum Check Plate

2.1.5 Steel Forgings

2.1.6 Rubber Seals

2.1.6.1 Physical Characteristics

2.1.6.2 Fabrication

2.1.6.3 Tubing

2.1.7 Elastomeric Pads, Shims, And Spacers

2.1.7.1 Material

2.1.7.2 Fabrication

2.1.8 Fenders

2.1.8.1 Plastic Wales, Girts, Thrust Blocks and Splices

2.1.8.2 Plastic

2.1.8.3 Reinforcing

2.1.8.4 General Configuration

2.1.8.5 Fiberglass Reinforcing Elements

2.1.8.6 Dimensions

SECTION 01 00 01 Page 1

2.1.9 Aluminum Guardrails

2.1.9.1 General

2.1.9.2 Aluminum Railings And Guardrails

2.1.9.3 Toe Boards

2.1.9.4 Guardrail Fittings

2.1.9.5 Safety Chains

2.1.9.6 Eyebolts

2.1.10 Gear Rack Assembly

2.1.10.1 Gear Rack

2.1.10.2 Gear Rack Fasteners

2.1.10.2.1 Structural Bolts

2.1.10.2.2 Carbon Steel Nuts

2.1.10.2.3 Plain Washers

2.1.10.2.4 Custom Washers

2.1.11 Roller Assembly

2.1.11.1 Inner Race, Outer Race, Thrust Washer

2.1.11.2 Roller Pin

2.1.11.3 Keeper Plate

2.1.11.4 Fasteners

2.1.12 Keys

2.2 MANUFACTURED UNITS

2.3 FABRICATION

2.3.1 Structural Fabrication

2.3.2 Welding

2.3.3 Bolted Connections

2.3.3.1 Structural Bolted Connections

2.3.3.2 Corrosion Resistant Bolted Connections

2.3.4 Machine Work

2.3.5 Cambered or Bent Members

2.3.6 Miscellaneous Provisions

2.3.7 Fabrications

2.3.7.1 Gate Leaf

2.3.7.2 Hinge Assembly

2.3.7.3 Seal Assemblies

2.3.8 Shop Assembly

2.4 TESTS, INSPECTIONS, AND VERIFICATIONS

2.4.1 General

2.4.2 Testing of Rubber Seals

PART 3 EXECUTION

3.1 PAINTING

3.2 RUBBER SEALS

3.3 GUARDRAIL

3.3.1 Fabrication

3.3.2 Assembly

3.3.3 Installation

3.4 GRATING

3.5 CATHODIC PROTECTION SYSTEM

3.6 INSPECTIONS

3.6.1 Acceptance

3.7 PROTECTION OF FINISHED WORK

3.8 MEASUREMENT AND PAYMENT

3.8.1 Gate Fabrication

3.8.2 Gate Delivery

-- End of Section Table of Contents --

SECTION 01 00 01 Page 2

C1 - SECTOR GATES

PART 1 GENERAL

1.1 SCOPE

The work covered by this Section consists of furnishing all plant, equipment, labor and materials, and performing all operations in connection with the fabrication, painting, delivery, and unloading of the steel sector gates and appurtenant items; including hinge assemblies, seal assemblies, walkways, bumpers, fenders, cathodic protection system; the services of a Corrosion Engineer; and other items necessary for complete fabrication and delivery as specified herein and as shown on the drawings.

1.2 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 ASSOCIATION OF STATE HIGHWAY AND TRANSPORTATION OFFICIALS

(AASHTO)

AASHTO M251 (2006) Standard Specification for Plain and Laminated Elastomeric Bridge Bearings

AMERICAN SOCIETY OF MECHANICAL ENGINEERS

ASME BTH-1-2017 (2017) Design of Below-the-Hook Lifting Devices

ASME B17.1 (1967; R 2017) Keys and Keyseats

AMERICAN WELDING SOCIETY (AWS)

AWS D1.5M/D1.5 (2015) Bridge Welding Code

ASTM INTERNATIONAL (ASTM)

ASTM A709/A709M (2018) Standard Specification for Structural Steel for Bridges

ASTM A148/A148M (2015a) Standard Specification for Steel Castings, High Strength, for Structural Purposes

ASTM A240/A240M (20185) Standard Specification for Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications

ASTM A269/A269M (2015; R 2019) Standard Specification for Seamless and Welded Austenitic Stainless

SECTION 01 00 01 Page 3

Steel Tubing for General Service

ASTM A276/A276M (2017) Standard Specification for Stainless Steel Bars and Shapes

ASTM A53/A53M (2018) Standard Specification for Pipe, Steel, Black and Hot-Dipped, Zinc-Coated, Welded and Seamless

ASTM A467/A467M (2007; R 2012) Standard Specification for Machine Coil Chain

ASTM A489 (2018e1) Standard Specification for Carbon Steel Lifting Eyes

ASTM A500/A500M (2018) Standard Specification for Cold-Formed Welded and Seamless Carbon Steel Structural Tubing in Rounds and Shapes

ASTM A514/A514M (2018e1) Standard Specification for High-Yield-Strength, Quenched and Tempered Alloy Steel Plate, Suitable for Welding

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

ASTM A588/A588M (2015) Standard Specification for High-Strength Low-Alloy Structural Steel with 50 ksi (345 MPa) Minimum Yield Point, with Atmospheric Corrosion Resistance

ASTM A668/A668M (2019) Standard Specification for Steel Forgings, Carbon and Alloy, for General Industrial Use

ASTM B26/B26M (2014; E 2015) Standard Specification for Aluminum-Alloy Sand Castings

ASTM B179 (2017) Standard Specification for Aluminum Alloys in Ingot and Molten Forms for Castings from All Casting Processes

ASTM B211/B211M (2019) Standard Specification for Aluminum and Aluminum-Alloy Bar, Rod, and Wire

ASTM B221 (2014) Standard Specification for Aluminum and Aluminum-Alloy Extruded Bars, Rods, Wire, Profiles, and Tubes

ASTM B429/B429M (2010; E 2012) Standard Specification for Aluminum-Alloy Extruded Structural Pipe and Tube

ASTM B632/B632M (2018) Standard Specification for Aluminum-Alloy Rolled Tread Plate

ASTM D2240 (2015; E 2017) Standard Test Method for Rubber Property - Durometer Hardness

SECTION 01 00 01 Page 4

ASTM D395 (2018) Standard Test Methods for Rubber Property - Compression Set

ASTM D4014 (2003; R 2018) Standard Specification for Plain and Steel-Laminated Elastomeric Bearings for Bridges

ASTM D412 (2016) Standard Test Methods for Vulcanized Rubber and Thermoplastic Elastomers - Tension

ASTM D413 (1998; R 2017) Rubber Property - Adhesion to Flexible Substrate

ASTM D471 (2016a) Standard Test Method for Rubber Property - Effect of Liquids

ASTM D4329 (2013) Standard Practice for Fluorescent Ultraviolet (UV) Exposure of Plastics

ASTM D4476/D4476M (2014) Standard Test Method for Flexural Properties of Fiber Reinforced Pultruded Plastic Rods

ASTM D572 (2004; R 2015) Standard Test Method for Rubber - Deterioration by Heat and Oxygen

ASTM D638 (2014) Standard Test Method for Tensile Properties of Plastics

ASTM D695 (2015) Standard Test Method for Compressive Properties of Rigid Plastics

ASTM D790 (2017) Standard Test Methods for Flexural Properties of Unreinforced and Reinforced Plastics and Electrical Insulating Materials

ASTM F436/F436M (2018a) Standard Specification for Hardened Steel Washers Inch and Metric Dimensions

ASTM F593 (2017) Standard Specification for Stainless Steel Bolts, Hex Cap Screws, and Studs

ASTM F594 (2009; R 2015) Standard Specification for Stainless Steel Nuts

ASTM F3125/F3125M (2018) 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

SECTION 01 00 01 Page 5

NATIONAL ASSOCIATION OF ARCHITECTURAL METAL MANUFACTURERS (NAAMM)

NAAMM MBG 531 (2017) Metal Bar Grating Manual

FEDERAL SPECIFICATIONS (Fed. Spec.)

A-A-341A (12 Dec 1995) Pigment, Aluminum, Powder and Paste

TT-P-645C (18 Jun 2013) Primer, Paint, Zinc-Molybdate, Alkyd Type

MASTER PAINTERS INSTITUTE (MPI)

MPI 28 (2012) Varnish, Marine Spar, Exterior, Gloss (MPI Gloss Level 6)

1.3 SUBMITTALS

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

submittals not having a "G" designation are for Contractor Quality Control approval. When used, a designation following the "G" designation identifies the office that will review the submittal for the Government.

District Office approval is required for submittals with a "DO" designation. Submit the following in accordance with Section C7-

SUBMITTAL PROCEDURES:

SD-01 Preconstruction Submittals

Beam Cambering Plan; G, DO

Gate Leaf Lift Plan; G, DC

SD-02 Shop Drawings

Detail Drawings; G DO

SD-03 Product Data

Materials; G DO

Welding; G DO

Fenders; G DO

Aluminum Railings and Guardrails; G DO

SD-04 Samples

Materials; G DO

Manufactured Units; G DO

Fabrications; G DO

SD-06 Test Reports

Tests, Inspections, and Verifications

SECTION 01 00 01 Page 6

Field Verification Notes

SD-07 Certification

Galvanizing Manufacturer's Certification

Guardrail Manufacturer's Certification

SD-08 Manufacturer's Instructions

Installation Instructions; G DO

1.4 QUALITY ASSURANCE

1.4.1 Qualification of Welders

Provide qualification of welders and welding operators conforming to the requirements of Section C2 - FABRICATION OF HYDRAULIC STEEL STRUCTURES and/or Section C3 - METALWORK FABRICATING, MACHINE WORK, AND MISCELLANEOUS

PROVISIONS..

1.4.2 Detail Drawings

Provide detail drawings, including fabrication drawings, shop assembly drawings, and delivery drawings, conforming to the requirements specified and in Section C2 - FABRICATION OF HYDRAULIC STEEL STRUCTURES and/or Section C3 - METALWORK FABRICATING, MACHINE WORK, AND MISCELLANEOUS

PROVISIONS.

1.4.2.1 Fabrication Drawings

Provide fabrication drawings showing complete details of materials, tolerances, connections, and proposed welding sequences which clearly differentiate shop welds and field welds.

1.4.2.2 Shop Assembly Drawings

Provide shop assembly drawings showing details for connecting the adjoining fabricated components in the shop to assure satisfactory field installation.

1.4.2.3 Delivery Drawings

Provide delivery drawings showing descriptions of methods of delivering components to the site, including details for supporting fabricated components during shipping to prevent distortion or other damages.

1.4.2.4 Storage Drawings

Provide storage drawings showing descriptions of methods of storing components at the site, including details and locations for dunnage to prevent distortion or other damages.

1.4.3 Handrail Fabrication Drawings

Guardrail catalog cuts, erection and installation details shall be submitted for information. Submittals shall be complete in detail; shall indicate thickness, type grade, class of material, and dimensions; and shall show construction details, reinforcement, anchorage, and installation with relation to the construction.

SECTION 01 00 01 Page 7

1.4.4 Guardrail Manufacturer's Certification

The guardrail shall be certified to be capable of withstanding a design working load of 200 pounds applied in any direction at any point on the top rail without permanent damage.

1.5 DELIVERY, STORAGE, AND HANDLING

Provide delivery, handling, and storage of materials and fabricated items as described below.

1.5.1 Materials and Fabricated Items

Delivery, handling, and storage of materials and fabricated items shall conform to the requirements specified and in Section C2 - FABRICATION OF

HYDRAULIC STEEL STRUCTURES.

1.5.2 Rubber Seals

Store rubber seals in a place which permits free circulation of air, maintains a temperature of 70 degrees F or less, and prevents the rubber from being exposed to the direct rays of the sun. Keep rubber seals free of oils, grease, and other materials which would deteriorate the rubber.

Rubber seals shall not be distorted during handling. Seals shall be crated separately from the gate for proper storage at the Catfish Point Structure.

1.5.3 Gate Leaf Lift Plan

The Contractor shall submit to the Government a Gate Leaf Lift Plan that demonstrates how individual gate leafs will be picked, load path flown, and set into their final position for storage. The Gate Leaf Lift Plan shall include at a minimum:

a. Crane equipment to be used with loading charts and cut sheets.

b. Position of crane barge(s)for lifting.

c. Any and all ancillary equipment such as spreader beams, attachment device(s) to the gate sections, slings, wire ropes, etc. that make up the entire rigging system to the hook of the crane shall be submitted for approval. Cut sheets and product information shall be provided that demonstrate that each component of the rigging system has adequate strength to support all loads imposed on it during lifting.

d. All lifting elements shall be designed in accordance with ASME BTH-1-2017. Design calculations for these elements shall be included.

All calculations shall be stamped by a registered professional engineer.

e. Calculations shall be included that show the reaction forces from the attachment device(s) to the gate sections will not overstress any portion or component of the gate sections. All calculations shall be stamped by a registered professional engineer. The current version of the AISC steel construction manual shall be used as a basis to calculate demand and capacity of members and connections.

e. The Contractor shall not cut any fracture critical members or the skin plate.

SECTION 01 00 01 Page 8

f. All lifting element connections to the gate structure shall achieve an AISC Fatigue Category of C or better.

g. All elements attached to the gate structure and required for lifting shall be permanently welded to the gate structure for future use.

h. Any temporary attachments to the gate and removal of those attachments shall be approved prior any lifting of the gate sections.

i. Lifting elements shall be considered as Fracture Critical Members and all welds connecting these elements shall be tested as specified in Section

C2 - FABRICATION OF HYDRAULIC STEEL STRUCTURES.

1.6 FIELD VERIFICATION NOTES

Contractor is responsible for accuracy and layout of work and must make necessary field measurements prior to preparation of shop drawings for the the sector gates. Contractor shall survey the existing gates and record the required measurements. The measurements shall be submitted to the CO for approval prior to preparation of the shop drawings. CO will revise the appropriate dimensions on the Contract Drawings if required by the field measurements.

PART 2 PRODUCTS

2.1 MATERIALS

Submit system of identification which shows the disposition of specific lots of approved materials and fabricated items in the work, before completion of the contract; and materials orders, materials lists, and materials shipping bills in conformance with the requirements of Section

C2 - FABRICATION OF HYDRAULIC STEEL STRUCTURES.

2.1.1 Metals

Structural steel, steel forgings, steel castings, stainless steel, and other metal materials used for fabrication shall conform to the requirements shown and specified herein and in Section C2 - FABRICATION OF HYDRAULIC STEEL STRUCTURES and/or C3 - METALWORK FABRICATION, MACHINE WORK, AND MISCELLANEOUS PROVISIONS.

2.1.1.1 Structural Steel Shapes

Structural steel shapes shall meet the requirements of ASTM A709/A709M, Grade 50 OR 50S. All materials shall be killed fine-grain mill practice.

Mill repairs of base metal are prohibited. Toughness shall meet the requirements of ASTM A709/A709M for Zone 1. All materials shall include mill certification showing that the material meets the necessary toughness requirements.

2.1.1.2 Structural Steel Plates

Structural steel plates shall meet the requirements of ASTM A709/A709M, Grade 50. All materials shall be killed fine-grain mill practice. Mill repairs of base metal are prohibited. Toughness shall meet the requirements of ASTM A709/A709M for Zone 1. All materials shall include mill certification showing that the material meets the necessary toughness requirements.

SECTION 01 00 01 Page 9

2.1.1.3 Steel Pipe

Provide pipe conforming to ASTM A53/A53M, type as selected, Grade B; primed finish, unless galvanizing is required; standard weight (Schedule 40).

2.1.1.4 Steel Tubing

Provide tubing conforming to ASTM A500/A500M, type as selected, Grade B;

primed finish, unless galvanizing is required.

2.1.1.5 Stainless Steel Bars and Shapes

ASTM A276/A276M Type 316, Condition A, hot-finished or cold-finished.

2.1.1.6 Stainless Steel Plate, Sheet, and Strip

ASTM A240/A240M. Plate finish shall be hot-rolled, annealed or heat-treated, and blast-cleaned or pickled. Sheet and strip finish shall be No. 1.

2.1.2 Steel Castings

Hinge castings shall meet the requirements of ASTM A148/A148M, Grade 80-50, unless noted otherwise on the drawings. The hinge castings shall be stress relieved after welding.

2.1.3 Aluminum Grating

Grating shall be serrated and shall be made from aluminum meeting the requirements of ASTM B221, Alloy 6063, Temper T6. Grating shall be pressure locked close mesh rectangular design. Main bars shall be 1 3/4 inch X 3/16 inch spaced 7/16 inches center-to-center. Cross bars shall be of rectangular cross section, flush top and spaced 4 inches center-to-center. Main bars and cross bars to be slotted at their intersections so as not to remove excessive material from the load-sustaining members. Main bars shall be "dovetail" slotted and have their slots solidly filled by cross bars. Grating shall safely sustain a uniformly distributed load of 200 pounds per square foot on a 60-inch span and deflect less than 0.25 inches. Finish shall be mill finish. Grating shall be manufactured in accordance with NAAMM MBG 531.

2.1.4 Aluminum Check Plate

Patterned floor plate shall meet the requirements of ASTM B632/B632M, Alloy 6061-T6.

2.1.5 Steel Forgings

Hinge pins shall meet the requirements of ASTM A668/A668M, Class K forgings. Lifting eyes for hinge pins shall meet the requirements of ASTM A489, Type 2.

2.1.6 Rubber Seals

Rubber seals shall be of the mold type only, shall be compounded of natural rubber, synthetic polyisoprene, or a blend of both, and shall contain reinforcing carbon black, zinc oxide, accelerators, antioxidants, vulcanizing agents, and plasticizers.

SECTION 01 00 01 Page 10

2.1.6.1 Physical Characteristics

Physical characteristics of the seals shall meet the following requirements:

PHYSICAL TEST TEST VALUE TEST METHOD

SPECIFICATION

Tensile Strength 2500 psi (min.) ASTM D412

Elongation at Break 450 percent (min.) ASTM D412

300 percent Modulus 900 psi (min.) ASTM D412

Durometer Hardness (Shore Type A)

60 to 70 ASTM D2240

*Water Absorption 5 percent by weight (max.)

ASTM D471

Compression Set 30 percent (max.) ASTM D395

Tensile Strength (after aging 48 hrs)

80 percent tensile strength (min.)

ASTM D572

The "Water Absorption" test shall be performed with distilled water. The washed specimen shall be blotted dry with filter paper or other absorbent material and suspended by means of small glass rods in the oven at a temperature of 70 degrees C plus or minus 2 degrees for 22 plus or minus 1/4 hour. The specimen shall be removed, allowed to cool to room temperature in air, and weighed. The weight shall be recorded to the nearest 1 mg as M subscript 1 (M subscript 1 is defined in ASTM D471). The immersion temperature shall be 70 degrees C plus or minus one (1) degree and the duration of immersion shall be 166 hours.

2.1.6.2 Fabrication

Where shown on drawings, rubber seals shall have a fluorocarbon film vulcanized and bonded to the sealing surface of the bulb. The film shall be

0.060 inch thick Huntington Abrasion Resistant Fluorocarbon Film No. 4508, or equal, and shall have the following physical properties:

Tensile strength 2,000 psi (min.)

Elongation 250 percent (min.)

The outside surface of the bonded film shall be flush with the surface of the rubber seal and shall be free of adhering or bonded rubber. Strips and corner seals shall be molded in lengths suitable for obtaining the finish lengths shown and with sufficient excess length to provide test specimens for testing the adequacy of the adhesion bond between the film and bulb of the seal. At one end of each strip or corner seal to be tested, the fluorocarbon film shall be masked during bonding to prevent a bond for a length sufficient to hold the film securely during testing.

2.1.6.3 Tubing

Sleeves for rubber seals shall meet the requirements of ASTM A269/A269M, Type 316, 16 gage.

SECTION 01 00 01 Page 11

2.1.7 Elastomeric Pads, Shims, And Spacers

2.1.7.1 Material

The elastomer shall be 100 percent virgin chloropene (neoprene).

2.1.7.2 Fabrication

Plain elastomeric pads, shims, and spacers shall conform to the applicable requirements of ASTM D4014. Laminated fabric pads, shims, and spacers shall conform to applicable requirements of AASHTO M251. Pads, shims, or spacers ½ inch or less in thickness shall be either all elastomer or laminated. Pads, shims, or spacers over ½ inch thick shall be laminated.

Stacking of individually laminated pads, shims, or spacers to attain thickness over ½ inch is not acceptable. Plain elastomer pads, shims, or spacers shall be molded individually, or cut from previously molded strips or slabs, or extruded and cut to size. Cutting shall produce a smooth surface and no heating of the elastomer.

2.1.8 Fenders

Fenders shall be Composite Marine Timber as specified herein and as shown on the drawings.

2.1.8.1 Plastic Wales, Girts, Thrust Blocks and Splices

The fiberglass reinforced plastic composite marine timber shall be in accordance with the requirements of this specification and shall be the manufacturer's standard commercial product. Materials used shall be free from defects which would adversely affect the performance or maintainability of individual components or of the overall assembly.

Additional features which are not specifically prohibited by this specification, but which are a part of manufacturer's standard commercial product, shall be included in the plastic wales, girts, thrust blocks and splices being furnished.

2.1.8.2 Plastic

The plastic shall be a mixture of one or more of the following recycled post consumer or post industrial thermoplastics: High density polyethylene, medium density polyethylene, low density polyethylene, and polypropylene. The plastic shall have a dense, hardened exterior layer that is continuous and homogenous throughout the length and perimeter of the plastic wale, girt, thrust block and splices. This plastic shall be mixed with the appropriate colorants, UV inhibitors and antioxidants, so that the resulting plastic portion of the product shall conform to the characteristics as listed in Table I.

2.1.8.3 Reinforcing

The plastic composite marine timber shall be reinforced with deformed fiberglass elements. The reinforcing elements shall conform to the characteristics found in Table II. The reinforcing elements shall be arranged in a square pattern, as described in Table III, within the plastic composite marine timber (plastic wale, girt, thrust block and splices).

Each plastic wale, girt, thrust block and splices shall have a quantity of four (4) fiberglass reinforcing elements with a minimum diameter of 1.25-inches each. Each individual element shall typically run the entire length of the timber, terminating flush with the ends, with the rebar

SECTION 01 00 01 Page 12 exposed. No plastic, fiberglass or metal elements or supports for the reinforcing element shall be used in the plastic wales, girts, thrust blocks and splices. The reinforcing elements shall be designed to enable residual stresses to be relieved.

2.1.8.4 General Configuration

The plastic composite marine timber shall have a square cross section with radiused corners. Both ends shall be cut square. It shall be seamless with a smooth outer skin.

TABLE I PLASTIC (Typical Properties)

Ultraviolet (ASTM D4329) No more than 10% change in Shore D durometer hardness after 500 hours exposure

Tensile Strength (ASTM D638) Minimum 500 psi at break

Compressive Modulus of i i

Minimum 40,000 psi

2.1.8.5 Fiberglass Reinforcing Elements

TABLE II REINFORCING

Flexural Strength (ASTM D790 or ASTM D4476 /D4476M)

Flexural Strength Minimum 70,000 psi

Compressive Properties

(ASTM D695)

Compressive Strength Minimum 40,000 psi

2.1.8.6 Dimensions

Dimensions for the fiberglass reinforced plastic composite marine timber shall be as shown in Table III.

TABLE III DIMENSIONS

Plastic Marine Timber Dimension Tolerance

Width 8.00 inches +/-0.25 inches

Height 12.00 inches +/-0.25 inches

Corner radius 1.875 inches +/-0.375 inches

Distance from outer surface to rebar elements

2.00 inches +/-1.0 inches

2.1.9 Aluminum Guardrails

2.1.9.1 General

Provide materials with smooth surfaces, without seam marks, roller marks, rolled trade names, stains, discolorations, or blemishes. Brackets, flanges, and anchors shall be cast or formed metal of same type of material

SECTION 01 00 01 Page 13 and finish as supported rails, unless otherwise indicated.

2.1.9.2 Aluminum Railings And Guardrails

Provide railings and guardrails consisting of 2 inch nominal schedule 40 pipe ASTM B429/B429M, alloy 6061-T6. Provide mill-finish aluminum railings. Provide internal/external, reverse knurl, cup point, hex head set screws. Ensure that all fasteners are Series 300 stainless steel as specified in Section C2 - FABRICATION OF HYDRAULIC STEEL STRUCTURES.

2.1.9.3 Toe Boards

Provide toe boards in the size as shown on the drawings and meeting the requirements of ASTM B211/B211M or ASTM B221, alloy 6061-T6. Provide mill-finish aluminum railings.

2.1.9.4 Guardrail Fittings

Provide cast fittings meeting the requirements of ASTM B179, alloy 535.

Fitting shall be cast in accordance with ASTM B26/B26M.

2.1.9.5 Safety Chains

Provide safety chains of galvanized steel, straight-link type, 3/16 inch diameter, with at least 12 links per foot, and with snap hooks on each end. Test safety chain in accordance with ASTM A467/A467M, Class CS.

Provide snap hooks of boat type. Provide galvanized 3/8 inch bolt with 3/4 inch eye diameter for attachment of chain, anchored as indicated. Supply two chains, 4 inches longer than the opening spacing, for each guarded area. Locate guardrail safety chain where indicated.

2.1.9.6 Eyebolts

Eyebolts for walkway chain shall be either closed eye bolts or welded eye bolts, manufactured from material meeting the requirments of ASTM F593, Type 316, minimum 3/8" nominal size. Nuts shall meet the requiremnts of ASTM F594, Type 316

2.1.10 Gear Rack Assembly

2.1.10.1 Gear Rack

Gears shall be fabricated from plate conforming to ASTM A514/A514M, Grade E. Gears shall be minimum AGMA Quality 4.

2.1.10.2 Gear Rack Fasteners

2.1.10.2.1 Structural Bolts

Carbon steel bolts shall meet the requirements of ASTM F3125/F3125M, Grade A325, Type 3, heavy hex head.

2.1.10.2.2 Carbon Steel Nuts

Nuts for carbon steel bolts shall be heavy hex nuts meeting the requirements of ASTM A563, Grade DH3.

SECTION 01 00 01 Page 14

2.1.10.2.3 Plain Washers

Washers for carbon steel bolts shall meet the requirements of ASTM F436/F436M, Type 3.

2.1.10.2.4 Custom Washers

Custom washers for gear racks shall meet the requirements of ASTM A588/A588M.

2.1.11 Roller Assembly

2.1.11.1 Inner Race, Outer Race, Thrust Washer

Inner race, outer race, and thrust washer shall be as specified in C5-

SELF-LUBRICATED MATERIALS, FABRICATION, HANDLING, AND ASSEMBLY.

2.1.11.2 Roller Pin

Roller pin shall be fabricated from cold finished steel meeting the requirements of ASTM A276/A276M, Type 316, Condition A, cold finished.

2.1.11.3 Keeper Plate

Keeper plate shall meet the requirements of ASTM A709/A709M, Grade 50.

2.1.11.4 Fasteners

Fasteners shall be corrosion resistant as specified in C2 - FABRICATION OF

HYDRAULIC STEEL STRUCTURES.

2.1.12 Keys

Keys shall be fabricated to the dimensions specified on the drawings from Type 316 stainless steel. Keys shall be fabricated in accordance with

ASME B17.1.

2.2 MANUFACTURED UNITS

Bolts, nuts, washers, screws and other manufactured units shall conform with the requirements shown and specified and in Section C2 - FABRICATION

OF HYDRAULIC STEEL STRUCTURES.

2.3 FABRICATION

2.3.1 Structural Fabrication

Structural fabrication shall conform with the requirements shown and specified herein and in Section C2 - FABRICATION OF HYDRAULIC STEEL STRUCTURES except for items covered in Section C3- METALWORK FABRICATION, MACHINE WORK, AND MISCELLANEOUS PROVISIONS. Components shall be shop-fabricated of the materials specified and shown. Dimensional tolerances shall be as specified and shown. Splices shall occur only where shown or approved. Pin holes shall be bored in components after welding, straightening, stress-relieving, and threading operations are completed.

Brackets, eye bar sections, and other components requiring straightening shall be straightened by methods which will not damage the material.

Bronze bushings shall be press-fitted with supporting components. Bolt connections, lugs, clips, or other pick-up assembly devices shall be provided for components as shown and required for proper assembly and

SECTION 01 00 01 Page 15 installation. Provisions shall be made for the installation of appurtenances as required.

2.3.2 Welding

Welding shall conform with AWS D1.5M/D1.5, the requirements specified, and in Section C2 - FABRICATION OF HYDRAULIC STEEL STRUCTURES excpet as noted in Section C3- METALWORK FABRICATION, MACHINE WORK, AND MISCELLANEOUS PROVISIONS. Welds shall be of the type shown on the contract drawings and approved detail drawings. Radiographic examination is required on the major shop and field welds of the type and location indicated on the drawings. Welds which have been designated to receive radiographic examination and are found to be inaccessible to a radiation source or film, or are otherwise so situated that radiographic examination is not feasible may be examined, with written approval of the Contracting Officer (CO), by ultrasonic tests. Components shall be stress-relief heat treated after welding where shown. Stress-relieving of components shall be performed prior to the attachment of miscellaneous appurtenances.

2.3.3 Bolted Connections

2.3.3.1 Structural Bolted Connections

Unless specified otherwise, structural bolts are only required for the attachment of the gear rack sections. Remaining bolts shall be corrosion resistant. Structural bolts shall be torqued to the requirments shown on the Contract Drawings. Equip all nuts with washers. Where the use of high strength bolts is specified or indicated the materials, workmanship and installation must conform to the applicable provisions of ASTM F3125/F3125M and RCSC Specifications for Structural Joints using Grade A325 or Grade A490 Bolts.

2.3.3.2 Corrosion Resistant Bolted Connections

Corrosion resistant bolted connections shall conform with the requirements specified in Section C2 - FABRICATION OF HYDRAULIC STEEL STRUCTURES.

2.3.4 Machine Work

Machine work shall conform with the requirements specified in Section C3 -

METALWORK FABRICATION, MACHINE WORK, AND MISCELLANEOUS PROVISIONSS.

2.3.5 Cambered or Bent Members

Submit a Beam Cambering Plan for approval prior to fabrication. The plan must include process, procedure, and equipment required to achieve the specified camber. For members that require hot bending or cambering, use an approved procedure that addresses support conditions, preloading (if any), and heat application and control. Support members to be heat-cambered with the web vertical, and space supports to take maximum advantage of dead load in the member before heat is applied.

2.3.6 Miscellaneous Provisions

Miscellaneous provisions for fabrication shall conform with the requirements specified and in Section C2 - FABRICATION OF HYDRAULIC STEEL

STRUCTURES.

SECTION 01 00 01 Page 16

2.3.7 Fabrications

Submit approved samples, prior to use of the represented materials or items in the work. Samples of standard and shop fabricated items shall be full size and complete as required for installation in the work. Approved samples may be installed in the work provided each sample is clearly identified and its location recorded. Fabrications shall conform to the following requirements.

2.3.7.1 Gate Leaf

Each gate leaf shall be of welded fabrication except for bolted appurtenances. Gate leaf shall consist of a bottom hinge, column, and top hinge pin housing integrally framed with horizontal and vertical trusses supporting vertical ribs faced with a continuous skin plate. Gate leaf shall be shop-fabricated. Splices in skin plates shall be located only where shown or approved. In addition to welds specifically indicated on the drawings for nondestructive testing, 100 percent of welds in the joints between trusses and upper or lower hinge casting shall receive nondestructive testing. Gate leaf shall be provided complete with hinge assemblies, seal assembly, and other appurtenant components as required for complete installation as specified and shown.

2.3.7.2 Hinge Assembly

Each hinge assembly shall consist of hinge casting, split hinge outer race, hinge ball, hinge pin, and keeper plate as well as associated fasteners.

In addition to welds specifically indicated on the drawings for nondestructive testing, welds in the hinge assembly components shall receive nondestructive testing. Welded hinge assembly components shall be stress-relieved by heat-treating after all welding is completed.

Stress-relieving shall be performed prior to machining.

At each hinge assembly, the hinge ball and split outer shall be supplied as a matched set. Each part shall be stamped with an identification marking to match the components to each other at a later date. At the upper hinge, the ball and outer race must be stamped on the top so that the markings are visible in the installed condition. At the lower hinge, the ball and outer race must be stamped on the bottom so that the markings are visible after bolting the outer race to the lower hinge casting. Stamped marking shall be 3/8" in height. Markings shall also be on the packaging. The stamping of the items will allow for the remating if the individual parts become separated.

2.3.7.3 Seal Assemblies

Seal assemblies shall consist of rubber seals, stainless steel retainer and spacer bars, tubing, and fasteners. Rubber seals shall be continuous over the full length. Splices in seals shall be fully molded, develop a minimum tensile strength of 50 percent of the unspliced seal, and occur only at locations shown. All vulcanizing of splices shall be done in the shop.

The vulcanized splices between molded corners and straight lengths shall be located as close to the corners as practicable. Splices shall be on a 45 degree bevel related to the "thickness" of the seal. The surfaces of finished splices shall be smooth and free of irregularities. Stainless steel retainer bars shall be field-spliced only where shown and shall be machine-finished after splicing.

SECTION 01 00 01 Page 17

2.3.8 Shop Assembly

Shop assembly requirements for sector gates and appurtenant items shall be as shown and specified herein and in Section C2 - FABRICATION OF HYDRAULIC STEEL STRUCTURES. Sector gates and appurtenant items shall be assembled completely in the shop, unless otherwise approved, to assure satisfactory field installation. Adjoining components shall be fitted and bolted together to facilitate field connections. The matchmarking of unassembled items shall be carefully preserved until the items are assembled. Mating surfaces and machined surfaces shall be covered with a rust preventive until assembly. Assembled components shall be shop-welded in their final positions as much as delivery conditions will permit. Rubber seal clamp bars and support plates shall be fitted and drilled to match the skin plate, match-marked, and removed for shipment. Seals shall be provided without holes drilled. Shop assembly and disassembly work shall be performed in the presence of the CO unless otherwise approved. The presence of the CO will not relieve the Contractor of any responsibility under this contract.

2.4 TESTS, INSPECTIONS, AND VERIFICATIONS

Submit certified test reports for material tests, with all materials delivered to the site.

2.4.1 General

Tests, inspections, and verifications for materials shall conform to the requirements specified and in Section C2 - FABRICATION OF HYDRAULIC STEEL

STRUCTURES.

2.4.2 Testing of Rubber Seals

The fluorocarbon film of rubber seals shall be tested for adhesion bond in accordance with ASTM D413 using either the machine method or the deadweight method. A 1 inch long piece of seal shall be cut from the end of the seal which has been masked and subjected to tension at an angle approximately 90 degrees to the rubber surface. There shall be no separation between the fluorocarbon film and the rubber when subjected to the following loads:

THICKNESS OF

FLUOROCARBON FILM

MACHINE METHOD AT 2

INCHES PER MINUTE

DEADWEIGHT METHOD

0.060 inch 30 pounds per inch width 30 pounds per inch width

PART 3 EXECUTION

3.1 PAINTING

Exposed parts of gates and appurtenances, except machined surfaces, corrosion-resistant surfaces, cathodic protection system anodes, and other specified surfaces shall be painted as specified in Section C4 - PAINTING:

HYDRAULIC STRUCTURES.

3.2 RUBBER SEALS

Match-drill bolt holes in the skin plate with the seal support and clamping bars, as applicable; to insure proper fit and spacing between holes of the completed seal assembly. Drilling of holes shall be performed before gate is painted. A spacer of appropriate thickness shall be used to compensate for the rubber seal since the holes in the rubber seal shall not be drilled

SECTION 01 00 01 Page 18 by the Contractor. Match finish seal support and clamping bars to conform to the configurations shown on the drawings. Rubber seal support plates and clamping bars shall be installed after gate painting is completed using the minimum quantity of bolts that will not allow bending or distortion of these members during transportation, lifting and storage. Bolts shall be finger-tight. The seals shall be crated for shipping along with remaining bolts, nuts, washers, tubing that is required for full installation of the seals at a later date. No holes shall be drilled in the rubber seals.

Crates and seals shall be piece marked and a drawing created to show the locations of each piece on the individual gate leaves.

3.3 GUARDRAIL

3.3.1 Fabrication

Cut, drill, and punch metals cleanly and accurately. Remove burrs and ease edges to a radius of approximately 1/32 inch, unless otherwise indicated.

Remove sharp or rough areas on exposed surfaces. Fabricate connections that will be exposed to weather in a manner to exclude water. Provide weep holes where water may accumulate. Bends in railings shall be made in a manner that railings are not crushed and shall maintain their original cross-sectional shape. Railings shall be free from burrs, shape corners, and sharp edges. The pipe shall be free from defects impaired its strength, durability or appearance and shall be clean and straight with smooth finished surfaces. All lines shall be sharp, profiles accurate and true to pattern. All railings shall be uniform in color and texture, and free from abrasion, blemishes, burrs, sharp corners and sharp edges.

Curved work shall be true to radii. Top rail shall be continuous.

3.3.2 Assembly

Fabricate railings with non-welded connections. Systems using welding, adhesive, or pop rivet attachment systems will not be accepted. Connect members with fittings of the structural slip on type which fastens to the exterior of the pipe by means of an internal/external reverse knurl cup point set screw. Reverse knurl is required to ensure that screw does not come loose under vibration. Plain cup point screws will not be accepted.

3.3.3 Installation

Railings to be installed on structural members shall be supported as shown on the drawings. All guardrails shall be plumb, straight and in proper alignment after erection. Railings shall be protected until completion of the construction against strain, discoloration or other surface injuries.

Installation of fittings and provisions for expansion shall be in accordance with the manufacturer's recommendation. Aluminum in contact with structural steel shall be protected from galvanic or corrosive action by being given a coat of zinc-chromate primer and a coat of aluminum paint. The zinc-chromate primer shall conform to Fed. Spec. TT-P-645C.

The aluminum paint shall consist of a aluminum paste conforming to Fed.

Spec. A-A-341A, spar varnish conforming to MPI 28 and thinner compatible with the varnish. The aluminum paint shall be mixed in proportion of 2 pounds of paste, not more than one gallon of spar varnish and not more than one pint of thinner.

3.4 GRATING

Edges of grating and openings through gratings, which require the cutting of, more than one bearing bar shall be banded. Fasteners shall be of the

SECTION 01 00 01 Page 19 type recommended by the manufacture and approved by the Government Representative. Each aluminum grating panel shall be provided with a minimum of 4 fasteners located such that the panel is properly secured.

Openings through the grating shall be provided as required. Openings, which require the cutting of, more than one bearing bar shall be banded with the same size as the bearing bars. Panel widths shown on the drawings are nominal and shall be varied slightly to achieve proper fit in the recesses. The sides of each panel shall be terminated by either a bearing or banding bar. Center to center spacing of terminating bars adjacent panels shall not exceed 3/4 inch. Two approved spacer bars shall be welded, to each side of the interior panels and to the interior of exterior panels to facilitate spacing and in the recess.

3.5 CATHODIC PROTECTION SYSTEM

The cathodic protection system shall conform to Section C6- CATHODIC

PROTECTION FSYSTEMS (IMPRESSED CURRENT).

3.6 INSPECTIONS

3.6.1 Acceptance

Upon delivery, the CO will examine the gates for final acceptance. The gates will be examined to determine whether or not the workmanship conforms to the specification requirements. Required repairs or replacements to correct defects, as determined by the CO, shall be made at no cost to the Government. Gates shall be measured once they are in their final storage position at the Catfish Control Structure and on the required dunnage to verify that they are within the tolerance specified on the Contract Drawings.

3.7 PROTECTION OF FINISHED WORK

Protection of finished work shall conform to the requirements of Section

C2 - FABRICATION OF HYDRAULIC STEEL STRUCTURES.

3.8 MEASUREMENT AND PAYMENT

3.8.1 Gate Fabrication

Measurement for supplying the new gate leaves and their appurtenances will be made by the number of sector gates leaves provided. Payment for supplying the new sector gate leaves and their appurtenances will be made at the applicable contract unit price as reflected in Section B for "Sector Gate Leaves - Gate 1" or "Sector Gate Leaves - Gates 2 and 3". Payment shall be full compensation for all plant, labor, equipment, material and weld testing, materials, fabrication, shop assembly and painting of sector gate and appurtenant items, including gate leaves, hinge assemblies, seal assemblies, fenders, and other items necessary for a complete gate as specified in the plans and specifications.

3.8.2 Gate Delivery

No measurement will be made for the loading, transportation, unloading, and placing sector gates and their appurtenances on storage dunnage or into warehouse. Payment for transportation, unloading, and placing sector gates and their appurtenances on storage dunnage or within warehouse will be made at the applicale contract job price as reflected in Section B for "Delivery of Gate 1 to Catfish Point" or "Delivery of Gates 2 and 3 to Catfish

SECTION 01 00 01 Page 20

Point". Payment shall be full compensation for all plant, labor, equipment, material, barges, tug boats or other marine equipment, and cranes for loading and transporting to the Catfish Point Structure, and unloading and placing into storage at the Catfish Point…

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