6-07Painting

6-07.1 Description

This work consists of containment, surface preparation, shielding adjacent areas from work, testing and disposing of debris, furnishing and applying paint, and cleaning up after painting is completed. The work shall comply with all requirements of the Plans, these Specifications, and the Engineer. Terminology used herein is in accordance with the definitions used in Volume 2, Systems and Specifications, of the SSPC Steel Structures Painting Manual .

6-07.2 Materials

Materials shall meet the requirements of the following sections: Paints and Related Materials 9-08 Powder Coating Materials for Coating Galvanized Surfaces 9-08.2 Abrasive Blast Media 9-08.4(1) Lead Abatement Additive 9-08.4(2) Bird Guano Treatment 9-08.5(1) Fungicide Treatment 9-08.5(2) Water 9-08.5(3) Filter Fabric 9-08.6 Single Component Polyurethane Sealant 9-08.7 Foam Backer Rod 9-08.8

6-07.3 Construction Requirements

6-07.3(1) Work Force Qualifications

6-07.3(1)A Work Force Qualifications for Shop Application of Paint

Facilities for shop application of paint shall either be selected from one of the facilities listed in the WSDOT Qualified Products List as an approved coating facility for new steel structures or shall be approved through the WSDOT Request for Approval of Material process. The work force may be accepted based on the approved facility.

6-07.3(1)B Work Force Qualifications for Field Application of Paint

The Contractor preparing the surface and applying the paint shall be certified under SSPC-QP 1 or NACE International Institute Contractor Accreditation Program (NIICAP) AS 1. The Contractor removing and otherwise disturbing existing paint containing lead and other hazardous materials shall be certified under SSPC-QP 2, Category A or NIICAP AS 2.

6-07.3(2) Submittals

The Contractor shall submit a painting plan consisting of one comprehensive submittal including all components described in this Section. The Contractor shall submit Type 2 Working Drawings of the painting plan components, except containment system and support and platform plans as listed in Section 6-07.3(2)F item number 3 shall be Type 2E Working Drawings. Each component of the plan shall identify the specification section it represents and shall be assembled in an order consistent with submittal requirement sections. For shop application of paint, the painting plan shall include the documents and samples listed in Sections 6-07.3(2)B , 6-07.3(2)C , and 6-07.3(2)E . For field application of paint, the painting plan shall include the documents and samples listed in Section 6-07.3(2)A through 6-07.3(2)F . Page 6-184 M 41-10

6-07 Painting6-07.3(2)A Work Force Qualifications Submittal Component

The work force qualifications submittal component of the painting plan shall include the following:

6-07.3(2)B Contractor’s Quality Control Program Submittal Component

The Contractor’s quality control program submittal component of the painting plan shall include the following for each phase of work:

6-07.3(2)C Paint System Manufacturer and Paint System Information Submittal

Component The paint system manufacturer and paint system information submittal component of the painting plan shall include the following:

6-07.3(2)D Hazardous Waste Containment, Collection, Testing, and Disposal

Submittal Component The hazardous waste containment, collection, testing, and disposal shall meet all Federal and State requirements, and the submittal component of the painting plan shall include the following: M 41-10 Page 6-185 Painting 6-071. Abrasive blasting containment system attachment and support in accordance with Section 6-07.3(10)A , with a complete description of each attachment device.

6-07.3(2)E Cleaning and Surface Preparation Submittal Component

The cleaning and surface preparation submittal component of the painting plan shall include the following:

6-07.3(2)F Paint Application Equipment and Operations Submittal Component

The paint application equipment and operations submittal component of the painting plan shall include the following:

6-07 Painting6. Details of paint application operations for areas of limited and restricted access.

6-07.3(2)G Painting Plan Meeting

At the option of the Contracting Agency, a painting plan meeting may be scheduled following review of the Contractor’s initial submittal of the plan. The Contractor shall be represented by the superintendent, on-site supervisors, and quality control inspectors.

6-07.3(3) Quality Control and Quality Assurance

6-07.3(3)A Quality Control and Quality Assurance for Shop Application of Paint

For shop application of paint, quality control procedures shall be as accepted by the Engineer.

6-07.3(3)B Quality Control and Quality Assurance for Field Application of Paint

For field application of paint, the Contractor shall conduct quality control inspections as required by SSPC-PA 1, using the personnel and the processes outlined in the painting plan. The Contractor shall maintain current copies of the SSPC Painting Manual , Volumes 1 and 2, at the project site at all times. The Contractor’s quality control operations shall include at a minimum monitoring and documenting the following for each working day:

6-07.3(3)C Quality Control and Quality Assurance During Hold Point Inspection

The Contractor shall notify the Engineer once cleaning has been completed so that a hold point inspection may be performed. The Contractor shall conduct operations to ensure the concentration of contaminants is reduced below the action and permissible exposure limits for lead or other regulated air contaminants before requesting the Engineer to initiate a hold point inspection. Protocols may be modified by the Contracting Agency based on staff air monitoring to limit exposures from all airborne contaminants. The Contractor shall ensure the ventilation system functions at capacity to the established protocols. The Contractor shall ensure the ventilation remains in full operation at all times. The Contractor shall not conduct activities that generate regulated airborne contaminants while Contracting Agency personnel are in the containment.

6-07.3(4) Paint System Manufacturer’s Technical Representative

The paint system manufacturer’s technical representative shall be present at the jobsite for the pre-painting conference and for the first day of paint application, and shall be available to the Contractor and Contracting Agency for consultation for the full project duration.

6-07.3(5) Pre-Painting Conference

A pre-painting conference shall be held 5 to 10 working days before beginning painting operations to discuss the painting plan, construction operations, personnel, and equipment to be used. Those attending shall include:

6-07.3(6) Paint Containers, Storage, and Handling

6-07.3(6)A Paint Containers

Paint container labels shall include the following information:

6-07 PaintingPaint containers shall conform to U.S. DOT hazardous material shipping regulations. Paint

shall be delivered to the jobsite in the manufacturer’s original unopened containers with the original manufacturer’s label legible and intact. Paint will be rejected if the container has a puncture or if the lid shows signs of paint leakage. Each container shall be filled with paint and sealed airtight. Each container shall be filled with the amount of paint required to yield the specified quantity when measured at 70°F. All paint shall be shipped in new suitable containers having a capacity not greater than 5 gallons.

6-07.3(6)B Paint Storage

Paint materials shall not be used or stored on-site after the shelf life expiration date. Paint material shipping, handling, and storage shall conform to Sections 1-06.4 and

9-08.1(4) and the following requirements:

6-07.3(7) Paint Sampling and Testing

The Contractor shall provide the Engineer 1 quart of each paint representing each lot. Samples shall be accompanied with a Safety Data Sheet. If the quantity of paint required for each component of the paint system for the entire project is 20 gallons or less, then the paint system components will be accepted as specified in Section 9-08.1(7) . Sampling and testing performed by the Contracting Agency shall not be construed as determining or predicting the performance or compatibility of the individual paint or the completed paint system.

6-07.3(8) Equipment

6-07.3(8)A Paint Film Thickness Measurement Gages

Paint dry film thickness measurements shall be performed with either a Type 1 pull-off gage or a Type 2 electronic gage as specified in SSPC Paint Application Specification No. 2, Procedure for Determining Conformance to Dry Coating Thickness Requirements. Paint wet film thickness measurement gages shall be stainless steel with notches graduated in 1-mil increments.

6-07.3(9) Painting New Steel Structures

All materials classified as nongalvanized structural steel shall be painted with a four-coat paint system as specified in Section 6-07.3(9)A . The primer coat shall be shop-applied. The intermediate, intermediate stripe, and top coats shall be field-applied after erection and following the primer coating repair operations, if any. Steel surfaces embedded in concrete, and faying (contact) surfaces of bolted connections (including all surfaces internal to the connection and all filler plates) shall receive the primer coat only. Stainless steel surfaces are not required to be painted. Welded shear connectors are not required to be painted. Temporary attachments or supports for scaffolding, containment or forms shall not damage the paint system. M 41-10 Page 6-189 Painting 6-076-07.3(9)A Paint System The paint system applied to new steel surfaces shall consist of the following: Option 1 (component based paint system): Primer Coat - Inorganic Zinc Rich 9-08.1(2)C Intermediate Coat - Moisture Cured Polyurethane 9-08.1(2)G Intermediate Stripe Coat - Moisture Cured Polyurethane 9-08.1(2)G Top Coat - Moisture Cured Polyurethane 9-08.1(2)H Option 2 (performance based paint system): Primer Coat - Inorganic Zinc Rich 9-08.1(2)M Intermediate Coat - Epoxy 9-08.1(2)M Intermediate Stripe Coat - Epoxy 9-08.1(2)M Top Coat - Polyurethane 9-08.1(2)M Paints and related materials shall be products listed in the current WSDOT Qualified Products List (QPL). Component based paint systems shall be listed on the QPL in the applicable sections of Section 9-08 . Performance based systems shall be listed on the current Northeast Protective Coatings Committee (NEPCOAT) Qualified Products List “A” as listed on the WSDOT QPL in Section 9-08.1(2)M . If the paint and related materials for the component based system is not listed in the current WSDOT QPL, a sample shall be submitted to the State Materials Laboratory in Tumwater for evaluation and acceptance in accordance with Section 9-08 . All paint coating components of the selected paint system shall be produced by the same manufacturer. The paint system selected shall be used throughout the entire structure. Paint formulations to be used on faying surfaces shall be Class B coatings with a mean slip coefficient not less than 0.50. The slip coefficient shall be determined by testing in accordance with “Appendix A - Test Method to Determine the Slip Coefficient for Coatings Used in Bolted Joints” included in the Specification for Structural Joints Using High- Strength Bolts, June 2020 as approved by the Research Council on Structural Connections.

6-07.3(9)B Paint Color

Each successive coat shall be a contrasting color to the previously applied coat. The color of the top coat shall be as specified in the Plans or Special Provisions and shall conform to Section 9-08.1(8) .

6-07.3(9)C Mixing and Thinning Paint

The Contractor shall thoroughly mix paint in accordance with the manufacturer’s written recommendations and by mechanical means to ensure a uniform and lump free composition. Paint shall not be mixed by means of air stream bubbling or boxing. Paint shall be mixed in the original containers and mixing shall continue until all pigment or metallic powder is in suspension. Care shall be taken to ensure that the solid material that has settled to the bottom of the container is thoroughly dispersed. After mixing, the Contractor shall inspect the paint for uniformity and to ensure that no unmixed pigment or lumps are present. Catalysts, curing agents, hardeners, initiators, or dry metallic powders that are packaged separately may be added to the base paint in accordance with the paint manufacturer’s written recommendations and only after the paint is thoroughly mixed to achieve a uniform mixture with all particles wetted. The Contractor shall then add the proper volume of curing agent to the correct volume of base and mix thoroughly. The mixture shall be used within the pot life specified by the manufacturer. Unused portions shall be discarded at the end of each work day. Accelerants are not permitted except as allowed by the Engineer. Page 6-190 M 41-10

6-07 PaintingThe Contractor shall not add additional thinner at the application site except as allowed

by the Engineer. The amount and type of thinner, if allowed, shall conform to the manufacturer’s specifications. If recommended by the manufacturer and allowed by the Engineer, a measuring cup with gradations in ounces shall be used for the addition of thinner to paint. No unmeasured addition of thinner to paint will be allowed. Paint found to be thinned by unacceptable methods will be rejected. When recommended by the manufacturer, the Contractor shall constantly agitate paint during application by use of paint pots equipped with mechanical agitators. The Contractor shall strain all paint after mixing to remove undesirable matter, but without removing the pigment or metallic powder. Paint shall be stored and mixed in a secure, contained location to eliminate the potential for spills into State waters and onto the ground and highway surfaces.

6-07.3(9)D Coating Thickness

Dry film thickness shall be measured in accordance with SSPC Paint Application Specification No. 2, Procedure for Determining Conformance to Dry Coating Thickness Requirements. The minimum dry film thickness of the primer coat shall not be less than 3.0 mils. The minimum dry film thickness of each coat (combination of intermediate and intermediate stripe, and top) shall be not less than 3.0 mils. The dry film thickness of each coat shall not be thicker than the paint manufacturer’s recommended maximum thickness. The minimum wet film thickness of each coat shall be specified by the paint manufacturer to achieve the minimum dry film thickness. Film thickness, wet and dry, will be measured by gages conforming to Section 6-07.3(8)A . Wet measurements will be taken immediately after the paint is applied in accordance with ASTM D4414. Dry measurements will be taken after the coating is dry and hard in accordance with SSPC Paint Application Specification No. 2. Each painter shall be equipped with wet film thickness gages and shall be responsible for performing frequent checks of the paint film thickness throughout application. Coating thickness measurements may be made by the Engineer after the application of each coat and before the application of the succeeding coat. In addition, the Engineer may inspect for uniform and complete coverage and appearance. One hundred percent of all thickness measurements shall meet or exceed the minimum wet film thickness. In areas where wet film thickness measurements are impractical, dry film thickness measurements may be made. If a question arises about an individual coat’s thickness or coverage, it may be verified by the use of a Tooke gage in accordance with ASTM D4138. If the specified number of coats does not produce a combined dry film thickness of at least the sum of the thicknesses required per coat, if an individual coat does not meet the minimum thickness, or if visual inspection shows incomplete coverage, the coating system will be rejected and the Contractor shall discontinue painting and surface preparation operations and shall submit a Type 2 Working Drawing of the repair proposal. The repair proposal shall include documentation demonstrating the cause of the less-than-minimum thickness, along with physical test results, as necessary, and modifications to Work methods to prevent similar results. The Contractor shall not resume painting or surface preparation operations until receiving the Engineer’s acceptance of the completed repair. M 41-10 Page 6-191 Painting 6-076-07.3(9)E Environmental Condition Requirements Prior to Application of Paint Paint shall be applied only during periods when:

6-07.3(9)F Shop Surface Cleaning and Preparation

A roughened surface profile shall be provided by an abrasive blasting procedure as accepted by the Engineer. The profile shall be 1-mil minimum or in accordance with the paint manufacturer’s recommendations, whichever is greater. The entire steel surface to be painted, including surfaces specified in Section 6-07.3(9)G to receive a mist coat of primer, shall be cleaned to a near white condition in accordance with SSPC-SP 10, Near-white Metal Blast Cleaning, and shall be in this condition immediately prior to paint application.

6-07.3(9)G Application of Shop Primer Coat

After receiving the Engineer’s acceptance of the prepared surface, the primer shall be applied so as to produce a uniform, even coating that has fully bonded with the metal. Primer shall be applied with the spray nozzles and pressures recommended by the manufacturer of the paint system, so as to attain the film thicknesses specified. Repairs of the shop primer coat shall be prepared in accordance with the painting plan. Shop primer coat repair paint shall be selected from the approved component based or performance based paint system in accordance with Section 6-07.3(10)H . Steel girder top flanges and soldier pile flanges to be embedded in concrete shall be prepared in accordance with Section 6-07.3(9)F and shall then receive a mist coat of the specified primer with a dry film thickness of 0.5 to 1.0 mils. The Contractor shall provide access to the steel to permit inspection by the Engineer. The access shall not mar or damage freshly painted surfaces. High-strength field bolts shall not be painted before erection and installation.

6-07.3(9)H Containment for Field Coating

The Contractor shall use a containment system in accordance with Section 6-07.3(10)A for surface preparation and prime coating of all uncoated areas. During painting operations of the intermediate, intermediate stripe and top coats the Contractor shall furnish, install, and maintain drip tarps below the areas to be painted to contain all spilled paint, buckets, brushes, and other deleterious material, and prevent such Page 6-192 M 41-10

6-07 Paintingmaterials from reaching the environment below or adjacent to the structure being painted.

Drip tarps shall be absorbent material and hung to minimize puddling. The Contractor shall evaluate the project-specific conditions to determine the specific type and extent of containment needed to control the paint emissions and shall submit a containment plan in accordance with Section 6-07.3(2) .

6-07.3(9)I Application of Field Coatings

An on-site supervisor shall be present for each work shift at the bridge site. Upon completion of erection Work, all uncoated or damaged areas remaining, including uncoated bolts, nuts, washers, and splice plates, shall be prepared in accordance with Section 6-07.3(9)F , followed by a field primer coat of a zinc-rich primer. Galvanized bolts, nuts and washers shall be prepared in accordance with Section 6-07.3(11)A . Final coats shall be applied over all primed or galvanized surfaces using paint selected from the approved component or performance based paint system in accordance with Section 6-07.3(10)H . The intermediate, intermediate stripe, and top coats shall be applied in accordance with the manufacturer’s written recommendations. Upon completion of erection Work, welds for steel column jackets may be prepared in accordance with SSPC-SP 15, Commercial Grade Power Tool Cleaning. The minimum drying time between coats shall be as shown in the product data sheets, but not less than 12 hours. The Contractor shall determine whether the paint has cured sufficiently for proper application of succeeding coats. The maximum time between intermediate and top coats shall be in accordance with the manufacturer’s written recommendations. If the maximum time between coats is exceeded, all newly coated surfaces shall be prepared to SSPC-SP 7, Brush-off Blast Cleaning, and shall be repainted with the same paint that was cleaned, at no additional cost to the Contracting Agency. Each coat shall be applied in a uniform layer, completely covering the preceding coat. The Contractor shall correct runs, sags, skips, or other deficiencies before application of succeeding coats. Such corrective work may require sanding, scraping, re-cleaning, application of additional paint, or other means as determined by the Engineer, at no additional cost to the Contracting Agency. Dry film thickness measurements will be made in accordance with Section 6-07.3(9)D . All paint damage that occurs shall be repaired in accordance with the manufacturer’s written recommendations. On bare areas or areas of insufficient primer thickness, the repair shall include field-applied zinc-rich primer, and the final coats of the paint selected from the approved component or performance based paint system in accordance with Section 6-07.3(10)H . On areas where the primer is at least equal to the minimum required dry film thickness, the repair shall include the application of the final two coats of the paint system including stripe coats. All paint repair operations shall be performed by the Contractor at no additional cost or time to the Contracting Agency.

6-07.3(10) Painting Existing Steel Structures

Painting existing steel structures includes providing containment, cleaning, preparing the surface, painting metal surfaces, and disposal of generated waste. Painting of existing steel structures shall be done in the following sequence:

6-07.3(10)B Bird Guano, Fungus, and Vegetation Removal

Bird guano and bird nesting materials shall be removed in the dry. Following dry removal, the Contractor shall apply a treatment solution in accordance with Section 9-08.5(1) , followed by hand-scrubbing and rinsing with water in accordance with Section 9-08.5(3) . The bird guano, bird nesting materials, and treatment solution shall be contained and collected. Vegetation, soil, and other waste debris either intertwined with or coating the steel members included in the painting limits shall be contained, collected, removed, and disposed of in accordance with this Section and Section 6-01.12. When steel bearing assemblies are included within the painting limits, the Contractor shall also contain, collect, remove, and dispose of all vegetation, soil, and debris on the associated pier caps. The Contractor shall treat all areas of fungus growth and vegetative growth. The Contractor shall apply a treatment solution in accordance with Section 9-08.5(2) to the fungus areas for a period recommended by the solution manufacturer or as specified by the Engineer, but in no case less than 5 minutes. The fungus, vegetative growth, and treatment solution shall be contained and collected. Bird guano, bird nesting materials, fungus, and vegetative growth shall be disposed of at a land disposal site accepted by the Engineer. The Contractor shall submit a Type 1 Working Drawing consisting of the disposal receipt, which shall include a description of the disposed material.

6-07.3(10)C Dry Cleaning

Dry cleaning shall include removal of accumulated dirt and debris on the surfaces to be painted. Collected dirt and debris shall be disposed of at a land disposal site accepted by the Engineer. The Contractor shall submit a Type 1 Working Drawing consisting of the disposal receipt, which shall include a description of the disposed material. Documentation of the disposal shall comply with Section 1-07.5 . Page 6-194 M 41-10

6-07 Painting6-07.3(10)D Surface Preparation Prior to Overcoat Painting

The Contractor shall remove all visible oil, grease, and road tar in accordance with SSPC-SP 1, Solvent Cleaning. Following preparation by SSPC-SP1, all steel surfaces to be painted shall be prepared in accordance with SSPC-SP 7, Brush-Off Blast Cleaning. Surfaces inaccessible to brush-off blast shall be prepared in accordance with SSPC-SP 3, Power Tool Cleaning, as allowed by the Engineer. Following brush-off blast cleaning, the Contractor shall perform spot abrasive blast cleaning in accordance with SSPC-SP 6, Commercial Blast Cleaning. Spot abrasive blast cleaning shall be performed in such a manner that the adjacent areas of work are protected from damage. Areas exhibiting coating failure down to the steel substrate, those exhibiting visible corrosion, and those areas needing treatment of pack rust and gaps shall be prepared down to clean bare steel in accordance with SSPC-SP 6. Exposed steel areas that have an average exposed diameter of less than 1½ inches and no other similar area closer than 4 inches do not require spot abrasive blast cleaning or edge feathering unless required by the Engineer. The Contractor shall provide a sharp angular surface profile by an abrasive blasting procedure as accepted by the Engineer. The profile shall be 1 mil minimum or in accordance with the paint manufacturer’s recommendations, whichever is greater. For small areas, as allowed by the Engineer, the Contractor may substitute cleaning in accordance with SSPC-SP 15, Commercial Grade Power Tool Cleaning. The prepared area shall extend at least 2 inches into adjacent tightly adhering, intact coating. Following spot abrasive blast cleaning of exposed steel surfaces, edges of tightly adherent coating remaining shall be feathered so that the recoated surface has a smooth appearance. Immediately prior to painting, the Contractor shall clean all steel surfaces and staging areas with dry, oil-free compressed air conforming to ASTM D4285.

6-07.3(10)E Surface Preparation – Full Paint Removal

For structures where full removal of existing paint is specified, the Contractor shall remove all visible oil, grease, and road tar in accordance with SSPC-SP 1. Following preparation by SSPC-SP 1, all steel surfaces to be painted, and all areas needing treatment of pack rust and gaps, shall be prepared in accordance with SSPC-SP 10, Near- White Metal Blast Cleaning. Surfaces inaccessible to Near-White Metal Blast Cleaning shall be prepared in accordance with SSPC-SP 11, Power Tool Cleaning to Bare Metal, as allowed by the Engineer.

6-07.3(10)F Collecting, Testing, and Disposal of Containment Waste

The sealed waste containers shall be labeled as required by State and Federal laws. All confined materials shall be collected and secured in sealed containers at the end of each shift or daily at a minimum to prevent the weight of the confined materials from causing failure to the containment system. The sealed waste containers shall be stored in accordance with Section 1-06.4 , the painting plan, and the following requirements:

6-07.3(10)G Treatment of Pack Rust and Gaps

Pack rust is defined as the condition where two or more pieces of steel fastened together by rivets or bolts have been pressed apart by crevice corrosion caused by the buildup of corrosion products at the interface of the steel pieces. Pack rust forming a gap between steel surfaces of 1/16 to 1/4 inch shall be cleaned to a depth of at least one half of the gap width. The gaps shall be cleaned and prepared in Page 6-196 M 41-10

6-07 Paintingaccordance with Section 6-07.3(10)D or 6-07.3(10)E as specified in the Contract. When

cleaned and prepared in accordance with Section 6-07.3(10)D , the cleaned gap shall be treated with rust penetrating sealer, prime coated, and then caulked. When cleaned and prepared in accordance with Section 6-07.3(10)E , the cleaned gap shall be primed and then treated with rust penetrating sealer, and then caulked. The caulking shall be applied to form a watertight seal along the top edge and the two sides of the steel pieces involved, using the rust penetrating sealer and caulk as accepted by the Engineer. The bottom edge or lowest edge of the steel pieces involved shall not be caulked. The type of rust penetrating sealer and caulk used shall be compatible with the paint system used and shall be applied in accordance with the rust penetrating sealer and caulk manufacturer’s instructions. Caulk shall be a single-component polyurethane sealant conforming to Section 9-08.7 . When caulking joints where only one steel piece edge is exposed, a fillet of caulk shall be formed that is not less than ⅛ inch or the width of the pack rust gap. The fillet is not required where there is no separation of the steel pieces due to pack rust. At locations where gaps between steel surfaces exceed ¼ inch after cleaning, preparing, sealing and priming, the Contractor shall then fill the gap with foam backer rod material as accepted by the Engineer. The foam backer rod material shall be of sufficient diameter to fill the crevice or gap. The Contractor shall apply caulk over the foam backer rod material to form a watertight seal. Caulk and backer rod, if needed, shall be placed prior to applying the top coat.

6-07.3(10)H Paint System

The paint system applied to existing steel surfaces shall consist of the following five-coat system: Option 1 (component based system): Primer Coat - Zinc-rich Moisture Cured Polyurethane 9-08.1(2)F Primer Stripe Coat - Moisture Cured Polyurethane 9-08.1(2)F Intermediate Coat - Moisture Cured Polyurethane 9-08.1(2)G Intermediate Stripe Coat - Moisture Cured Polyurethane 9-08.1(2)G Top Coat - Moisture Cured Polyurethane 9-08.1(2)H Option 2 (performance based system): Primer Coat - Zinc-rich Epoxy 9-08.1(2)N Primer Stripe Coat - Epoxy 9-08.1(2)N Intermediate Coat - Epoxy 9-08.1(2)N Intermediate Stripe Coat - Epoxy 9-08.1(2)N Top Coat - Polyurethane 9-08.1(2)N Paints and related materials shall be a product listed in the current WSDOT Qualified Products List (QPL). Component based paint systems shall be listed on the QPL in the applicable sections of Section 9-08 . Performance based systems shall be listed on the current Northeast Protective Coatings Committee (NEPCOAT) Qualified Products List “B” as listed on the WSDOT QPL in Section 9-08.1(2)N . If the paint and related material for the component based system is not listed in the current WSDOT QPL, a sample shall be submitted to the State Materials Laboratory in Tumwater for evaluation and acceptance in accordance with Section 9-08 . All paint coating components of the selected paint system shall be produced by the same manufacturer. Only one paint system from a singular manufacturer shall be used throughout the project unless otherwise allowed in writing by the Engineer. The Contractor shall not change to a different paint system once the initial paint system has been applied to any portion of the bridge unless otherwise allowed in writing by the Engineer. M 41-10 Page 6-197 Painting 6-076-07.3(10)I Paint Color Each of the five coats shall be a contrasting color to the previously applied full coat. The color of the top coat shall be as specified in the Plans or Special Provisions and shall conform to Section 9-08.1(8) . Tinting shall occur at the factory at the time of manufacture and placement in containers, prior to initial shipment. Application site tinting will not be allowed except as otherwise allowed by the Engineer.

6-07.3(10)J Mixing and Thinning Paint

Mixing and thinning paint shall be in accordance with Section 6-07.3(9)C .

6-07.3(10)K Coating Thickness

Coating thickness shall be in accordance with Section 6-07.3(9)D . The minimum dry film thickness of the combination of intermediate and intermediate stripe coat, shall not be less than 3.0 mils.

6-07.3(10)L Environmental Condition Requirements Prior to Application of Paint

Environmental conditions shall be in accordance with Section 6-07.3(9)E .

6-07.3(10)M Steel Surface Condition Requirements Prior to Application of Paint

The steel surface to be painted shall be free of moisture, dirt, dust, grease, oil, loose, peeling or, chalky paint, abrupt paint edges, salts, rust, mill scale, and other foreign matter and substances that would prevent the bond of the succeeding application. The Contractor shall protect freshly painted surfaces from contamination by abrasives, dust, or foreign materials from any other source. The Contractor shall prepare contaminated surfaces to the satisfaction of the Engineer before applying additional paint. Prepared surfaces shall be kept clean at all times, before painting and between coats. Edges of existing paint shall be feathered in accordance with SSPC-PA 1, Shop, Field, and Maintenance Coating of Metals, Note 15.20.

6-07.3(10)N Field Coating Application Methods

The Contractor shall apply paint materials in accordance with manufacturer’s recommendations by air or airless spray, brush, roller, or any combination of these methods unless otherwise specified. Spray application of the paint shall be accomplished with spray nozzles and at pressures as recommended by the paint manufacturer to ensure application of paint at the specified film thickness. The Contractor may apply stripe coat paint using spray or brush but shall follow spray application using a brush to ensure complete coverage around structural geometric irregularities and to push the paint into gaps between existing steel surfaces and around rivets and bolts. All application techniques shall conform to Section 7, SSPC-PA 1. Painters using brushes shall work from pails containing a maximum of 2 gallons of paint.

6-07.3(10)O Applying Field Coatings

An on-site supervisor shall be present for each work shift at the bridge site. The first coat shall be a primer coat applied to steel surfaces cleaned to bare metal. The second coat shall be a primer stripe coat applied to all steel surfaces cleaned to bare metal and defined to receive a stripe coat. The third coat shall be an intermediate coat. The fourth coat shall be an intermediate stripe coat applied to steel surfaces defined to receive a stripe coat. The fifth coat shall be the top coat. The intermediate (third) and top (fifth) coats shall encapsulate the entire surface area of the structure members specified to be painted. Prior to the application of paint, the Contractor shall clean the bridge deck surface for the purpose of dust control. All expansion or contraction joints specified in the plans to be sealed shall be sealed prior to application of the top coat. All rust staining or debris on Page 6-198 M 41-10

6-07 Paintingsteel surfaces, below or in the vicinity of the joints, shall be cleaned prior to application of

the top coat at no additional expense to the Contracting Agency. During painting operations the Contractor shall furnish, install, and maintain drip tarps below the areas to be painted to contain all spilled paint, buckets, brushes, and other deleterious material, and prevent such materials from reaching the environment below or adjacent to the structure being painted. Drip tarps shall be absorbent material and hung to minimize puddling. In addition to the requirements of the Specifications, paint application shall conform to:

6-07.3(10)P Field Coating Repair

Paint repair shall conform to SSPC-PA 1. Repair areas shall be cleaned of all damaged paint and the system reapplied using all coats typical to the paint system and shall meet the minimum coating thickness. Each coat shall be thoroughly dry before applying subsequent coats. Paint repair shall be in accordance with the paint manufacturer’s recommendations and as accepted by the Engineer.

6-07.3(10)Q Cleanup

Cleaning of equipment shall not be done in State waters nor shall resultant cleaning runoff be allowed to enter State waters. No paint cans, lids, brushes, or other debris shall be allowed to enter State waters. Solvents, paints, paint sludge, cans, buckets, rags, brushes, and other waste associated with this project shall be collected and disposed of off-site. Paint products, petroleum products, or other deleterious material shall not be wasted into, or otherwise enter, State waters as a result of project activities. Cleanup of the project site shall conform to Sections 1-04.11 and 6-01.12

6-07.3(11) Painting or Powder Coating of Galvanized Surfaces

Galvanized surfaces specified to be coated after galvanizing shall receive either paint in accordance with Section 6-07.3(11)A or powder coating in accordance with Section

6-07.3(11)B The color of the finish coat shall be as specified in the Special Provisions.

6-07.3(11)A Painting of Galvanized Surfaces

All galvanized surfaces receiving paint shall be prepared for painting in accordance with the ASTM D6386. The method of preparation shall be brush-off blast in accordance with SSPC-SP16 Brush-Off Blast Cleaning of Coated and Uncoated Galvanized Steel, Stainless Steels, and Non-Ferrous Metals or as otherwise allowed by the Engineer. The Contractor shall not begin painting until receiving the Engineer’s acceptance of the prepared galvanized surface. For galvanized bolts used for replacement of deteriorated existing rivets or for new painted steel structures, and for small areas less than one square foot, the Contractor, with the concurrence of the Engineer and after successful demonstration testing, may prepare galvanized surfaces in accordance with SSPC-SP1, Solvent Cleaning followed by SSPC-SP2, Hand Tool Cleaning or SSPC-SP3, Power Tool Cleaning. The demonstration testing shall include adhesion testing of the first coat of paint over galvanized bolts, nuts, and washers or a representative galvanized surface. Adhesion testing shall be performed in accordance with ASTM D4541 for 600 psi minimum adhesion. A minimum of 3 successful tests shall be performed on the galvanized surface prepared and painted using the same methods and materials to be used on the galvanized bolts, nuts and washers in the field.

6-07.3(11)A1 Environmental Conditions

Steel surfaces shall be: • Greater than 35ºF, and • Less than 115ºF. or in accordance with the manufacturer’s recommendations, whichever is more stringent. Page 6-200 M 41-10

6-07 Painting6-07.3(11)A2 Paint Coat Materials

The Contractor shall paint the dry surface as follows:

9-08.1(2)G or Section 6-07.3(10)H Option 2 NEPCOAT performance based paint

specification may be used as a first coat provided it passes the adhesion testing specified in Section 6-07.3(11)A . The first coat shall be compatible with galvanizing and as recommended by the top coat manufacturer.

6-07.3(11)B Powder Coating of Galvanized Surfaces

Powder coating of galvanized surfaces shall consist of the following coats:

6-07.3(11)B1 Submittals

The Contractor shall submit Type 2 Working Drawings consisting of the following information. The submittal shall be assembled in an order consistent with the submittal requirements below:

6-07.3(11)B2 Galvanizing

Prior to the galvanizing operation, the Contractor shall identify to the galvanizer the specific assemblies and surfaces receiving the powder coating after galvanizing, to ensure that the galvanizing method used on these assemblies is compatible with subsequent application of a powder coating system. Specifically, such assemblies shall neither be water-quenched nor receive a chromate conversion coating as part of the galvanizing operation. M 41-10 Page 6-201 Painting 6-076-07.3(11)B3 Galvanized Surface Cleaning and Preparation Galvanized surfaces receiving the powder coating shall be cleaned and prepared for coating in accordance with ASTM D7803, and the project-specific powder coating plan. Assemblies conforming to the ASTM D7803 definition for newly galvanized steel shall receive surface smoothing and surface cleaning in accordance with ASTM D7803, Section 5, and surface preparation in accordance with ASTM D7803, Section 5.1.3.1. Assemblies conforming to the ASTM D7803 definition for partially weathered galvanized steel shall be checked and prepared in accordance with ASTM D7803, Section 6, before then receiving surface smoothing and surface cleaning in accordance with ASTM D7803, Section 5, and surface preparation in accordance with ASTM D7803, Section 5.1.3.1. Assemblies conforming to the ASTM D7803 definition for weathered galvanized steel shall be prepared in accordance with ASTM D7803, Section 7 before then receiving surface smoothing and surface cleaning in accordance with ASTM D7803, Section 5, and surface preparation in accordance with ASTM D7803, Section 5.3. Ferrous metal abrasives are prohibited as a blast media for surface preparation. Surface preparation shall be accomplished using dry abrasive blasting through a blast nozzle with compressed air. Abrasive blasting with a centrifugal wheel is prohibited. The Contractor shall notify the Engineer of all surface cleaning and preparation activities and shall provide the Engineer opportunity to perform quality assurance inspection, in accordance with Section 1-05.6 , at the completion of surface cleaning and preparation activities prior to beginning powder coating application.

6-07.3(11)B4 Powder Coating Application and Curing

After surface preparation, the two-component powder coating shall be applied in accordance with the powder coating manufacturer’s recommendations, the project- specific powder coating plan, and as follows:

6-07.3(11)B5 Testing

The firm performing the powder coating operation shall conduct, or make arrangements for, QC testing on all assemblies receiving powder coating for this project, in accordance with the powder coating firm’s QC program as documented in item 4 of the Submittal Subsection above. Testing may be performed on coated surfaces of production fabricated items, or on a representative test panel coated alongside the production fabricated items being coated. There shall be a minimum of one set of tests representing each cycle of production fabricated items coated and cured. Additional tests shall be performed at the request of the Engineer. Repair of damaged coatings on production fabricated items shall be the responsibility of the firm applying the powder coating, and shall be in accordance with the project-specific powder coating plan. At a minimum, the QC testing shall test for the following requirements:

6-07 Painting3. Hardness testing in accordance with ASTM D3363, with the finish coat providing a

minimum hardness value of H.

6-07.3(11)B6 Coating Protection for Shipping, Storage, and Field Erection

After curing and acceptance, the Contractor shall protect the coated assemblies with multiple layers of bubble wrap or other protective wrapping materials specified in the project-specific powder coating plan. During storage and shipping, each assembly shall be separated from other assemblies by expanded polystyrene spacers and other spacing materials specified in the project-specific powder coating plan. After erection, all coating damage due to the Contractor’s shipping, storage, handling, and erection operations shall be repaired by the Contractor in accordance with the project- specific powder coating plan. The Contractor shall provide the Engineer access to all locations of all powder-coated members for verification of coating conditions prior to and following all coating repairs.

6-07.3(12) Painting Ferry Terminal Structures

Painting of ferry terminal structures shall be in accordance with Section 6-07.3 as supplemented below.

6-07.3(12)A Painting New Steel Ferry Terminal Structures

Painting of new steel Structures shall be in accordance with Section 6-07.3(9) except that all coatings (primer, intermediate, intermediate stripe, and top) shall be applied in the shop with the following exceptions:

6-07.3(12)A2 Paint Color

Paint colors shall be as specified in the Special Provisions.

6-07.3(12)A3 Coating Thickness

Coating thicknesses shall be as specified in the Special Provisions.

6-07.3(12)A4 Application of Field Coatings

An on-site supervisor shall be present for each work shift at the project site. Upon completion of erection Work, all uncoated or damaged areas remaining, including bolts, nuts, washers, splice plates, and field welds shall be prepared in accordance with SSPC-SP 1, Solvent Cleaning, followed by SSPC-SP 11, Power Tool Cleaning to Bare Metal. Surface preparation shall be measured according to SSPC-VIS 3. SSPC-SP 11 shall be performed for a minimum distance of 1 inch from the uncoated or damaged area. In addition, intact shop-applied coating surrounding the area shall be abraded or sanded for a distance of 6 inches out from the properly prepared clean/bare metal areas to provide adequate roughness for application of field coatings. All sanding dust and contamination shall be removed prior to application of field coatings. Field applied paint for Structural Steel shall conform to Section 6-07.3(10)H , as applicable. Field applied paint for Piling, Landing Aids and Life Ladders shall be as specified in the Special Provisions. For areas above the tidal zone, the minimum drying time between coats shall be as shown in the product data sheets, but not less than 12 hours. For areas within the tidal zone, the minimum drying time between coats shall be as recommended by the paint system manufacturer. The Contractor shall determine whether the paint has cured sufficiently for proper application of succeeding coats. The maximum time between intermediate and top coats shall be in accordance with the manufacturer’s written recommendations. If the maximum time between coats is exceeded, all newly coated surfaces shall be prepared to SSPC-SP 3, Power Tool Cleaning, and shall be repainted with the same paint that was cleaned, at no additional cost to the Contracting Agency. Each coat shall be applied in a uniform layer, completely covering the preceding coat. The Contractor shall correct runs, sags, skips, or other deficiencies before application of succeeding coats. Such corrective work may require re-cleaning, application of additional paint, or other means as determined by the Engineer, at no additional cost to the Contracting Agency. Surface preparation for underwater locations shall consist of removing all dirt, oil, grease, loose paint, loose rust, and marine growth from the area that is to be repaired. The sound paint surrounding the damaged area shall be roughened to meet the requirements of the manufacturer. Paint for underwater applications shall be as specified in the Special Provisions and shall be applied in accordance with the manufacturer’s recommendations. Page 6-204 M 41-10

6-07 Painting6-07.3(12)B Painting Existing Steel Ferry Terminal Structures

Painting of existing steel structures shall be in accordance with Section 6-07.3(10) as supplemented by the following.

6-07.3(12)B1 Containment

Containment for full removal shall be in accordance with Section 6-07.3(10)A . Containment for overcoat systems shall be in accordance with all applicable Permits as required in the Special Provisions. Prior to cleaning the Contractor shall enclose all exposed electrical and mechanical equipment to seal out dust, water, and paint. Non-metallic surfaces shall not be abrasive blasted or painted. Unless otherwise specified, the following metallic surfaces shall not be painted and shall be protected from abrasive blasting and painting:

6-07.3(12)B2 Surface Preparation

For applications above high water and within the tidal zone, surface preparation for overcoat painting shall be in accordance with SSPC-SP 1, Solvent Cleaning, followed by SSPC-SP 3, Power Tool Cleaning. Use of wire brushes is not allowed. After SP 3 cleaning has been completed all surfaces exhibiting coating failure down to the steel substrate, and those exhibiting visible corrosion, shall be prepared down to clean bare steel in accordance with SSPC-SP 15, Commercial Grade Power Tool Cleaning. Surface preparation shall be measured according to SSPC-VIS 3. SSPC-SP 15 shall be performed for a minimum distance of 1 inch from the area exhibiting failure or visible corrosion. In addition, intact shop-applied coating surrounding the repair area shall be abraded or sanded for a distance of 6 inches out from the properly prepared clean/bare metal areas to provide adequate roughness for application of repair coatings. All sanding dust and contamination shall be removed prior to application of repair coatings. Surface preparation for full paint removal shall be in accordance with Section 6-07.3(10)E except SSPC-SP 11 will be permitted as detailed in the Contractor’s painting plan and as allowed by the Engineer. Surface preparation for underwater locations shall consist of removing all dirt, oil, grease, loose paint, loose rust, and marine growth from the area that is to be repaired. The sound paint surrounding the damaged area shall be roughened as required by the coating manufacturer. Removed marine growth may be released to state waters provided the marine growth is not mixed with contaminants (paint, oil, rust, etc.) and it shall not accumulate on the sea bed. All marine growth containing contaminants shall be collected for proper disposal. M 41-10 Page 6-205 Painting 6-07Surface preparation for the underside of bridge decks (consisting of either a steel grid system of main bars or tees and a light gauge metal form, in-filled with concrete or a corrugated light gauge metal form, infilled with concrete) shall be in accordance with SSPC-SP 2, Hand Tool Cleaning or SSPC-SP 3, Power Tool Cleaning with the intent of not causing further damage to the light gauge metal form. Following removal of pack rust and corroded sections from the underside of the bridge deck, cleaning and flushing to remove salts and prior to applying the primer coat, the Contractor shall seal the entire underside of the deck system with rust-penetrating sealer. Damage to galvanized metal forms and/ or grids shall be repaired in accordance with ASTM A 780, with the preferred method of repair using paints containing zinc dust.

6-07.3(12)B3 Paint Systems

Paint systems for Structural Steel, which includes vehicle transfer spans and towers, pedestrian overhead loading structures and towers, upland structural steel and other elements as designated in the Special Provisions shall be as specified in Paint systems for Piling, Landing Aids, Life Ladders, underside of vehicle transfer span bridge decks, non-skid surface treated areas, and anti-graffiti coatings shall be as specified in the Special Provisions.

6-07.3(12)B4 Paint Color

Paint colors shall be as specified in the Special Provisions.

6-07.3(12)B5 Coating Thickness

Coating thicknesses shall be as specified in the Special Provisions.

6-07.3(12)B6 Application of Field Coatings

Application of field coatings shall be in accordance with Section 6-07.3(10)O and

6-07.3(13) Painting Timber Structures

Timber structures shall be painted as specified in the Special Provisions.

6-07.3(14) Metallic Coatings

6-07.3(14)A General Requirements

This specification covers the requirements for thermal spray metallic coatings, with and without additional paint coats, as a means to prevent corrosion. The coating system consists of surface preparation by wash cleaning and abrasive blast cleaning, thermal spray application of a metallic coating using a material made specifically for that purpose, and, when specified, shop primer coat or shop primer coat plus top coat in accordance with Section 6-07.3(11)A . The system also includes inspection and acceptance requirements. Page 6-206 M 41-10

6-07 Painting6-07.3(14)B Reference Standards

SSPC-SP 10/NACE No. 2 Near-White Blast Cleaning SSPC CS 23.00 Specification for the Application of Thermal Spray Coatings (Metallizing) of Aluminum, Zinc, and Their Alloys and Composites for the Corrosion Protection of Steel ASTM C633 Standard Test Method for Adhesion or Cohesion Strengths of Thermal Spray Coatings ASTM D4417 Standard Test Methods for Field Measurement of Surface Profile of Blast-Cleaned Steel ASTM D6386 Standard Practice for Preparation of Zinc (Hot-Dip Galvanized) Coated Iron and Steel Product and Hardware Surfaces for Painting ASTM D4541 Standard Test Method for Pull-Off Strength of Coatings Using Portable Adhesion Testers ANSI/AWS C2.18 Guide for the Protection of Steel with Thermal Sprayed Coatings of Aluminum, Zinc and their Alloys and Composites

6-07.3(14)C Quality Assurance

A representative sample of each lot of the coating material used shall be submitted to the Engineer for analysis prior to use. Zinc shall have a minimum purity of 99.9 percent. Zinc Aluminum 85/15 wire shall be 14 to 16 percent maximum aluminum. The thermal sprayed coating shall have a uniform appearance. The coating shall not contain blisters, cracks, chips or loosely adhering particles, oil or other surface contaminants, nodules, or pits exposing the substrate. The thermal spray coating shall adhere to the substrate with a minimum bond of 700 psi. The Contractor’s QA program shall include thermal spray coating bond testing. The Engineer may cut through the coating with a knife or chisel. If upon doing so, any part of the coating lifts away from the base metal ¼ inch or more ahead of the cutting blade without cutting the metal, then the bond is considered not effective and is rejected. Coated areas that have been rejected or damaged in the inspection procedure described shall have the defective sections blast cleaned to remove all of the thermal sprayed coating and shall then be recoated. Before resubmittal and inspection, those sections where coating has not reached the required thickness shall be sprayed with additional metal until that thickness is achieved.

6-07.3(14)D Submittals

The Contractor shall submit to the Engineer, prior to abrasive blast cleaning, a 12 inch square steel plate, of the same material and approximate thickness of the steel to be coated, blasted clean in accordance with Section 6-07.3(14)E . The sample plate will be checked for specified angular surface pattern, the abrasive grit size and type used, and the procedure used. This plate shall be used as the visual standard to determine the acceptability of the cleaned surface. In the event the Contractor’s cleaning operation is inferior to the sample plate, the Contractor shall be required to correct the cleaning operation to do a job comparable to the specimen submitted. At the same time as submitting the abrasive blast cleaned steel plate sample, the Contractor shall submit to the Engineer, a second 12 inch square steel plate of the same material and thickness, cleaned and thermal spray coated in accordance with the same processes and with the same equipment as intended for use in applying the thermal spray coatings. The Engineer may request additional cleaned and thermal spray coated M 41-10 Page 6-207 Painting 6-07samples to be produced and submitted coincident with thermal spray coating of the items specified in the Plans to receive thermal spray coatings.

6-07.3(14)E Surface Preparation

Surface irregularities (e.g., sharp edges and/or carburized edges, cracks, delaminations, pits) interfering with the application of the coating shall be removed or repaired, prior to wash cleaning. Thermal cut edges shall be ground to reduce hardness to attain the surface profile required from abrasive blast cleaning. All dirt, oil, and scaling shall be removed prior to blast cleaning. All surfaces shall be wash cleaned with either clean water at 8000 psi or water and detergent at 2000 psi with two rinses with clean water. The surface shall be abrasive blast cleaned to near white metal (SSPC-SP 10). The surface profile shall be measured using a surface profile comparator, replica tape, or other method suitable for the abrasive being used in accordance with ASTM D4417. Where zinc coatings up to and including 0.009 inch thick are to be applied, one of the following abrasive grits shall be used with pressure blast equipment to produce a 3.0 mils AA anchor tooth pattern:

6-07.3(14)F Application of Metallic Coating

Surfaces showing signs of condensed moisture or do not comply with Section 6-07.3(14)E shall not be sprayed. If rust bloom occurs within the holding time between abrasive blast cleaning and thermal spraying, the surface shall be reblasted at a blast angle as close to perpendicular to the surface as possible to achieve a 2.0 to 4.0 mil anchor tooth pattern. Thermal spraying shall not take place when the relative humidity is 90 percent or greater, when the steel temperature is less than 5F above the dew point, or when the air or steel temperature is less than 40F. Page 6-208 M 41-10

6-07 PaintingClean, dry air shall be used with not less than 50 psi air pressure at the air regulator. Not

more than 50 feet of 3/8 inch. ID hose shall be used between the air regulator and the metallizing gun. The metallizing gun shall be started and adjusted with the spray directed away from the work. During the spraying operation and depending upon the equipment being used, the gun shall be held as close to perpendicular as possible to the surface from 5 to 8 inches from the surface of the work. Manual spraying shall be done in a block pattern, typically 2 feet by 2 feet square. The sprayed metal shall overlap on each pass to ensure uniform coverage. The specified thickness of the coating shall be applied in multiple layers. In no case are fewer than two passes of thermal spraying, overlapping at right angles, acceptable. At least one single layer of coating shall be applied within 4 hours of blasting and the surface shall be completely coated to the specified thickness within 8 hours of blasting. The minimum coating thickness shall be 6 mils unless otherwise shown in the Plans.

6-07.3(14)G Applications of Shop Coats and Field Coats

The surface shall be wiped clean with solvent immediately before applying the wash primer. The wash primer shall have a low viscosity appropriate for absorption into the thermal spray coating, and shall be applied within 8 hours after completion of thermal spraying or before oxidation occurs. The dry film thickness of the wash primer shall not exceed 0.5 mils or be less than 0.3 mils. It shall be applied using an appropriate spray gun except in those areas where brush or roller application is necessary. The subsequent shop primer coats shall be applied no less than one-half hour after a wash primer. The shop primer coat, when specified, shall be applied in accordance with Section

6-07.3(11)A and the paint manufacturer’s recommendations.

All field coats, when specified, shall be applied in accordance with Section 6-07.3(11)A and the paint manufacturer’s recommendations. The color of the top coat shall conform to Section 6-03.3(30) as supplemented in these Special Provisions.

6-07.4 Measurement

Sealing and caulking pack rust will be measured by the linear foot along the edge of the steel connection interface sealed and caulked. Spot abrasive blast cleaning of steel surfaces in accordance with Section 6-07.3(10)D will be measured by the square foot of surface area to be cleaned to bare metal as specified by the Engineer.

6-07.5 Payment

Payment will be made for each of the following Bid items that are included in the Proposal: “Cleaning and Painting - _____”, lump sum. The lump sum Contract price for “Cleaning and Painting – _____” shall be full pay for the Work as specified, including developing all submittals; arranging for and accommodating contact and on-site attendance by the paint manufacturer’s technical representative; furnishing and placing all necessary staging and rigging; furnishing, operating, and mooring barges; furnishing and operating fixed and movable work platforms; accommodating Contracting Agency inspection access; conducting the Contractor’s quality control inspection program; providing material, labor, tools, and equipment; furnishing containers for containment waste, collecting and storing containment waste; collecting, storing, testing, and disposing of all containment waste not conforming to the definition in Section 6-07.3(10)F ; performing all cleaning and preparation of surfaces to be painted, including removal of debris on pier caps supporting steel members and bearings included in the painting limits; cleaning and preparing areas needing treatment of pack rust and gaps; applying all coats of paint; M 41-10 Page 6-209 Painting 6-07correcting coating deficiencies; completing coating repairs; and completing project site cleanup. When a weather station is specified, all costs in connection with furnishing, installing, operating, and removing the weather station, including furnishing mounting hardware and repeaters, accessories and wireless display console units, processing and submitting daily weather data reports, maintenance and upkeep, shall be included in the lump sum Contract price for “Cleaning And Painting – _____”. Progress payments for “Cleaning and Painting – _____” will be made on a monthly basis and will be based on the percentage of the total estimated area satisfactorily cleaned and coated as determined by the Engineer. Payment will not be made for areas that are otherwise complete but have repairs outstanding. “Sealing and Caulking Pack Rust”, per linear foot. The unit contract price per linear foot for “Sealing and Caulking Pack Rust” shall be full pay for performing the work as specified, including applying the rust penetrating sealer, foam backer rod when applicable, and caulk. “Spot Abrasive Blast Cleaning”, per square foot. The unit contract price per square foot for “Spot Abrasive Blast Cleaning” shall be full pay for performing the spot abrasive blast cleaning work in accordance with “Containment of Abrasives”, lump sum. The lump sum contract price for “Containment of Abrasives” shall be full payment for all costs incurred by the Contractor in complying with the requirements as specified in Section 6-07.3(10)A to design, construct, maintain, and remove containment systems for abrasive blasting operations. “Testing and Disposal of Containment Waste”, by force account as provided in Section 1-09.6 . All costs in connection with testing containment waste, transporting containment waste for disposal, and disposing of containment waste in accordance with Section

6-07.3(10)F will be paid by force account in accordance with Section 1-09.6 . For the

purpose of providing a common proposal for all bidders, the Contracting Agency has entered an amount for the item “Testing and Disposal of Containment Waste” in the bid proposal to become part of the total bid by the Contractor. All costs in connection with producing the metallic coatings as specified shall be included in the unit contract price for the applicable item or items of work. Payment for painting new steel structures and painting or powder coating of galvanized surfaces will be in accordance with Section 6-03.5 . Painting of timber structures will be in accordance with Section 6-04.5 .