546Recoating Structures

546.1 Description

This Work consists of surface preparation and recoating existi ng Structural Steel. Touch- up paint of surfaces coated per Sections 544, “Protective Coati ng of New Structural Steel;” 545, “Protective Coating of Miscellaneous Structural Steel;” an d 546, “Recoating Structures” is included. The Contractor shall adhere to Section 547, “Safety and Enviro nmental Requirements for Painting Operations.”

546.2 MATERIALS Projects that require SSPC – SP 6 shall engage Section 546.2.1 , “Coating System 1 –

Polyurethane Topcoat,” unless otherwise specified in the Contra ct. Projects that require SSPC – SP 3, SSPC – SP 11, and/or SSPC 1 6 shall engage Section 546.2.2, “Coating System 2 – Acrylic Topcoat,” unless o therwise specified in the Contract. The Contractor shall reference Section 545.2.1, “Coating Syste m” for additional information regarding coating systems that are allowable for sp ecific elements. If the Contract does not specify a color, the Contractor shall use the color Federal Standard 595A Color No. 22563 or approved equal. If another co lor is specified in the Contract, the Contractor shall select an approved system that i s available in the specified color.

546.2.1 Coating System No. 1 – Polyurethane Topcoat

The Contractor shall select products meeting all performance r equirements as listed in Table 546.2.1:1, “Acceptable Pro duct Requirements” below. Test ing shall be in accordance with AASHTO R-31. All products used in a system shall be from the same manufacturer. All products shall be represented on the latest version of the manu facturer’s product data sheet as being suitable for use on Br idges and capable of being appli ed at the specified dry film thickness requirements in Table 546.3.5:1, “Required Film Thick nesses.” Epoxy Organic Zinc-Rich Primer s hall achieve minimum SSPC Pain t 20 Level 2 requirements for amount of zinc dust in the dry film of equal t o or greater than 77% by weight. Epoxy Organic Zinc-Rich Primer shall not be required when surfa ce preparation of SSPC – SP 3 and / or SSPC – SP 11 is employed. Epoxy Intermediate Coat or Tie- Coat over existing finishes sha ll be a two (2)-component epoxy, polyamide or polyanidoami ne, including phenlkamine coati ng with minimum solids by volume of 65%. Epoxy Intermediate Coat or Tie-Coat shall be re quired unless specifically excluded by the manufacturer in the compatibility confirmation letter that shall be submitted per Section 546.2.3, “Submittals.” Polyurethane Topcoat shall be a two (2)-component aliphatic po lyurethane coating with minimum solids by volume of 65%. Table 546.2.1:1 Acceptable Product Requirements Test Ref. No. Product(S) Acceptance Criteria Comments Salt Fog Resistance ASTM B 117 P/I/T (OZ) (A) No Delamination Allowed (B) Rust – Max creep 8mm, Avg. creep 4mm @5000 Hrs. (C) Blister – Conversion #7 @ 4000 Hrs. Cyclic Weathering Resistance ASTM D 5894 P/I/T (OZ) (A) No Delamination Allowed (B) Rust – Max creep 8mm, Avg. creep 4mm @5040 Hrs. (C) Blister – Conversion #8 @ 4032 Hrs. Adhesion Pull-Off Strength ASTM D 4541 OZ Alone P/I/T (OZ) 4.1 MPa (600 psi) 4.1 MPa (600 psi) Freeze- Thaw Stability Pull-Off Strength ASTM D 4541 P/I/T (OZ) 2.4 MPa (350 psi) 4.1 MPa (600 psi) 2.4 MPa (350 psi) 4.1 MPa (600 psi) Requires same average as adhesion pull-off strength results, with no tests measuring less than 60% of those results Field History NA P/I/T (OZ) Five (5) Bridges with Minimum two (2) year successful field history P = Primer; I = Intermediate coat; T = Topcoat; OZ = Epoxy Orga nic Zinc Rich Primer

546.2.2 Coating System No. 2 – Acrylic Topcoat

The Contractor shall select products meeting all performance r equirements as listed in Table 546.2.1:1, “Acceptable Product Requirements” above and 54 6.2.2:1, “Acceptable Product Requirements” below as applicable. All products used i n a system shall be from the same manufacturer. All products shall be represented on the la test version of the manufacturer’s product data shee t as being suitable for use on Bridges and capable of being applied at the specified dry film thickness requirements in Tab le 546.3.5:1, “Required Film Thicknesses.” Epoxy Organic Zinc-Rich Primer s hall achieve minimum SSPC Pain t 20 Level 2 requirements for amount of zinc dust in the dry film of equal t o or greater than 77% by weight (Table 546.2.1:1, “Acceptable Pr oduct Requirements”). Epoxy Or ganic Zinc-Rich Primer shall not be required when surface preparation of SSPC – SP 3 and / o r SSPC – SP 11 are employed. Epoxy Intermediate Coat or Tie- Coat over existing finishes sha ll be a two (2)-component Section 546: Recoating Structures Page 542 epoxy, polyamide or polyanidoami ne, including phenlkamine coati ng with minimum solids by volume of 65% (Table 546.2.1:1, “Acceptable Product Requirement s”). Epoxy Tie-Coat shall be required unless specifically excluded by the manufacturer in the compatibility confirmation letter that shall be submitted per Section 546.2.3, “Submittals .” Acrylic Topcoat shall be a high performance DTM acrylic coatin g with minimum solids by volume of 38% (Table 546.2.2:1, “Acceptable Product Requirement s”). Table 546.2.2:1 Acceptable Product Requirements TEST REF. NO. PRODUCT(S) ACCEPTANCE CRITERIA COMMENTS Adhesion Pull-Off Strength ASTM D 4541 HPA > 500 lbs. One coat applied over blasted steel Flexibility ASTM D 522 HPA Pass: No cracking / flaking 1/8 “ conical mandrel One coat applied over blasted steel Hardness (Pencil) ASTM D 3363 HPA Final Cure: “F” One coat applied over blasted steel Impact ASTM D 2794 HPA > 140 in. lbs. One coat applied over blasted steel HPA = High Performance Acrylic The Contractor may substitute Polyurethane topcoat for Acrylic topcoat at their discretion pending full system submittal and approval.

546.2.3 Submittals

In addition to the submittals r equire per Section 106, “Contro l of Materials,” the Contractor shall provide the following submittals to the Projec t Manager at least 30 Days before coating operations: 1. Product data and SDS for each product in the system; 2. Surface preparation requirements; 3. Application instructions: a. Mixing and thinning directions; b. Recommended spray nozzles and pressures; c. Minimum / maximum drying times, including re-coat times for shop or field coatings; d. Temperature requirements; Section 546: Recoating Structures Page 543 4. Letter from the manufacturer detailing the coating system co mponents and the compatibility of those components to adjacent Materials includi ng but not limited to: a. Every product in the system (primer, intermediate, topcoat, etc.); b. Any pre-applied or preexisting products (such as existing co atings); c. Any post applied products (su ch as anti-graffiti coating); d. Any modifications to the surf ace preparation or application instructions related to the total system performance; 5. If the color varies from the specified color, the Contractor shall submit color samples on boards at least eight (8) inches by ten (10) inches for revi ew and approval; and 6. Documentation related to Contractor Qualifications per Secti on 546.2.3.1, “Contractor Qualifications.” Prior to coating application, the Contractor shall submit a no tarized manufacturer’s Certificates of Compliance stating that the Materials are the s ame as those described in the manufacturer’s product data sheets.

546.2.3 1 Contractor Qualifications

When the Contract requires painting more than 500 square feet of steel surface, the Contractor shall demonstrate qualification by one (1) of the fo llowing two (2) methods:  Method 1 : Obtain SSPC QP 1 certification for field painting or either SSPC-QP 3 certification or the AISC Sophisticated Paint Endorsement (SPE) for shop painting. The Contractor shall perform and document QA/QC inspections dai l y . Q A / Q C inspection documents shall be el ectronically submitted to the P roject Manager on a weekly basis.  Method 2 : Provide a coating Plan and pr ovide for NACE certified inspec tion (Level 2 minimum). The inspection serv ices shall include but not be l imited to: 1. Surface preparation and cleanliness inspection verifying pro file and appropriate surface preparation. 2. Confirm products match approved submittals and certification letters. Document batch numbers of all coatings. 3. Inspection of primer coat to include dry film thickness read ings. Review contractors QA/QC reports for environmental conditions and docu ment. 4. Observe application of stripe coat on the intermediate coat and document environmental readings during th e start-up of application. Rev iew Contractor’s QA/QC reports. 5. Inspect intermediate coat to include dry film thickness read ings. Review Contractor’s QA/QC reports. 6. Observe start-up of finish coat application and document env ironmental conditions. 7. Final inspection to include vi sual inspection for runs, sags , and foreign Material in coating. Also, perform final dry film thickness inspection. 8. Inspect members after transpo rtation, prior to subsequent co ating and / or Final Acceptance. 9. Electronically submit interim reports after each inspection to the Project Manager within three (3) Working Days. 10. Electronically submit comprehensive final report including photos to the Project Manager within 14 Days of comple tion of inspection. Final repo rt shall include QA/QC daily inspections per formed by the Contractor. Any deficiencies shall be co rrected and re-inspected by the NA CE inspector prior to proceeding. Provisions for demonstration of qualifications are Incidental to the performance of the coating; no additional payment shall be made. NMDOT shall be g ranted open access to the coating operation to perform i nspections and to review document ation of Contractor inspections. The Project Manager shall have the option to waiv e the Contractor Qualification requirement.

546.3 Construction Requirements

The Contractor shall apply coatings in conformance with SSPC – PA 1 “Shop, Field and Maintenance Painting of Steel” and with SSPC – PA Guide 13 “Gui de Specification for Application of Coating Systems with Zinc-Rich Primers to Steel Bridges” (aka AASHTO/NSBA Steel Bridge Collaboration S 8.1), SSPC-TU 3 “Technical Update No. 3 Overcoating”, and the manufacturer’s application instructions.

546.3.1 Surface Preparation of Existing Bridges and Structures

The Contractor shall perform surface preparation in accordance with the most stringent of the following: 1. At locations where loosely adherent coatings or corrosion ar e NOT present: SSPC – SP 1, and 2. At locations where loosely adherent coatings are present: S SPC – SP 3, and 3. At locations where corrosion is present: SSPC – SP 11, or 4. Specific Contract document requirements, or 5. Specific guidance by the Project Manager, or 6. Manufacturer recommendations (per the application instructio ns as amended by the manufacturer’s letter submitted per Section 546.2.3, “Submittal s;” #4d, “temperature requirements,” if applicable).

546.3.1 1 Surface Preparation Description and Evaluation

Various SSPC surface preparation standards are cited in this s ection. For reference, a brief summary of each is listed below. The Contractor is respo nsible to perform to the current versions of all requirements of the full and complete standards available directly from SSPC, The Society for Protective Coatings. SSPC surface preparation standa rds brief summary reference lis t: 1. SSPC-SP1 Solvent Cleaning: Removes all visible oil, grease, soil, drawing and cutting compounds, and other soluble contaminants from steel su rfaces with solvent, vapor, cleaning compound, alkali, emulsifying agent, o r steam. SSPC-SP 1 is a prerequisite to all hand tool, power tool and abrasive cle aning standards. SSPC-SP1 shall be Incidental. 2. SSPC-SP3 Power Tool Cleaning: Removes all loose mill s cale, loose rust, loose paint, and other loose detrimental foreign matter by power wire brushing, power sanding, power grinding, power t ool chipping, and power tool de scaling. Tightly adherent, intact Materials may remain. 3. SSPC-SP6 Commercial Blast Cleaning: When viewed without magnification shall be free of all visible oil, grease, dirt, dust, loose mill scal e, rust, and coating, but will Section 546: Recoating Structures Page 545 permit staining from rust, mill scale, or previously applied co atings. The surface will not necessarily be uniform in color. 4. SSPC-SP7 / NACE 4 Brush-Off Blast Cleaning: When viewed without magnification, the surface shall be free of all visible oil, gr ease, dirt, dust, loose mill scale, loose rust, and loose coating. Tightly adherent mill sc ale, rust, and coating may remain on the surface. Mill scale, rust, and coating are c onsidered tightly adherent if they cannot be removed by lifting with a dull putty knife. 5. SSPC-SP10 / NACE 2 Near-White Blast Cleaning: When viewed without magnification shall be free of all visible oil, grease, dust, d irt, mill scale, rust, coating, oxides, corrosion products and o ther foreign matter of at least 95% of each unit area. Staining shall be limited to no more than five percent ( 5%) of each unit area, and may consist of light shadows, slight streaks, or minor disc olorations caused by stains of rust, stains of mill scale, or stains of previously a pplied coatings. Unit area shall be approximately three (3) inches x three (3) inches (nin e (9) sq. in.). SSPC- SP10 shall only be engaged when required by the manufacturer. It shall be paid under the Bid Item for SSPC-SP6. 6. SSPC-SP11 Power Tool Cleaning to Bare Metal: When viewed without magnification, the surface shall be free of all visible oil, gr ease, dirt, dust, mill scale, rust, paint, oxides, corrosion products, and other foreign matt er. Slight residues of rust and paint may be left in the lower portion of pits if the original surface is pitted. The surface profile shall not be less than one (1) mil (25 micr ons). 7. SSPC-SP16 Brush-Off Blast Cleaning of Coated and Uncoated Galva nized Steel, Stainless Steels, and Non-Ferrous Metals: When viewed without magnification, the surface shall be free of all visible oil, gr ease, dirt, dust, metal oxides (corrosion products), and o ther foreign matter. Intact, tightly adherent coating is permitted to remain. A coating is considered tightl y adherent if it cannot be removed by lifting with a dull putty knife. The surface sha ll have a minimum profile of 0.75 mil (19 microns). Prepared surfaces shall be evaluated using the SSPC standards. The following references will be provided to the Project Manager by the Contr actor for inspection and Acceptance of prepared surfaces: 1. If SP 10, SP 6, SP 14 or SP 7 are engaged: SSPC-VIS 1 Guide and Standard (includes reference photographs); 2. If SP 2, SP 3, SP 11 are engaged: SSPC-VIS 3 Guide and Stan dard (includes reference photographs); and 3. If SP 12 is engaged: SSPC-VIS 4 Guide and Standard (include s reference photographs). SSPC VIS Guide and Standard shall become the property of the D epartment. The Contractor shall provide current version.

546.3.1 2 SSPC-SP 1 - Solvent and Pre-Cleaning

The Contractor shall clean exposed areas in accordance with SS PC-SP 1 Solvent Cleaning. The Project Manager may approve cleaning with high pressure wa ter and an approved, mild detergent to supplement solvent cleaning, where more effec tive or suitable. This method of pre-cleaning is required on all surfaces that have been expo sed to chloride contamination from the use of road salts for snow and ice control. Section 546: Recoating Structures Page 546 546.3.1.3 SSPC-SP 3 Power-Tool Cleaning The Contractor shall remove poorly adhering coatings and prepa re the surface with power-tools in accordance with SSPC-SP 3, Power Tool Cleaning. At the Contractor’s discretion, SSPC-SP 7 or SSPC-SP 12 WJ 3 may be employed in lie u of SSPC-SP 3.

546.3.1 4 SSPC-SP 6 – Commercial Blast Cleaning

The requirement for commercial blast cleaning shall be establi shed by the more stringent of Contract documents or the manufacturer’s recommendations.

546.3.1 5 SSPC-SP 7 – Brush-Off Wet Blast Cleaning

The requirement for brush-off we t blast cleaning shall be estab lished by the more stringent of Contract documents or the manufacturer’s recommend ations. Acceptability of wet cleaning shall be determined by the Project Manager as confirme d against Project environmental constraints.

546.3.1 6 SSPC-SP 10 – Near-White Blast Cleaning

The requirement for near-white blast cleaning shall be establi shed by the manufacturer’s recommendations. SSPC-SP 10 shall be paid under the same Bid I tem as SSPC-SP 6.

546.3.1 7 SSPC-SP 11 – Power-Tool Cleaning to Bare Metal

The Contractor shall clean areas that show moderate to severe corrosion in accordance with SSPC-SP 11, Power-Tool Cleaning to Bare Metal . Areas too large to be prepared using power tools may be cleaned per SSPC SP-6 Commercial Blast Clean ing at the Contractor’s discretion. The Project Manager will mark additional areas for cleaning in accordance with SSPC-SP 11. The Contractor shall clean at least two (2) inches beyond the damaged areas in all directions. The Contractor shall feather the exposed edges of the cleaned areas in accordance with SSPC-SP 11. The Contractor shall not leave rag ged edges of intact paint. During and after power-tool cleaning, the Contractor shall main tain the degree of cleaning specified in accordance with SSPC-SP 11. The Department will Accept these surfaces by visually comparin g them to a prepared Standard on the Project. The Contractor shall prepare a Projec t Standard by power-tool cleaning an area designated for re coating. Before cleaning, th e Contractor shall ensure that the prepared Standard is in accordance with SSPC-Vis 3, Visual Standard for Power and Hand-Tool Cleaned Steel , Pictorial Standard E SP 11, F SP 11, and G SP 11, and obtain Department approval. The Contractor shall prepare at least one (1) standard for each Structure. More than one (1) Standard may be necessary if the cleaned steel differs significantly from the photographi c Standards. For recoating B ridges, the Contractor shall make the Standard at least one (1) ft × one (1) ft. For recoat ing Bridge railing or minor Structures, the Standard may be smaller. The Contractor shall protect the Project Standard from corrosion and contamination by applying a clear polyuretha ne coat. Upon completing the cleaning Work, the Contractor shall re-clean and coat the Stand ard. If the Standard becomes deteriorated or ineffective, the Contractor shall re-establish it at no additional cost to the Department. The SSPC VIS 1 “Guide and Referenc e Photographs for Steel Surf aces Prepared by Dry Abrasive Blast Cleaning” shall be used in this same manner to p repare a Standard for surfaces that are blast cleaned per SSPC SP-7 and SP-10. At the Contractor’s discretion, SSPC-SP 7 or SSPC _ SP 12 WJ 3 may be employed in lieu of SSPC-SP 3.

546.3.1 8 SSPC-SP 12 WJ-3 – Thorough Waterjetting

The requirement for thorough waterjetting shall be established by the more stringent of Contract documents or the manufacturer’s recommendations. Acce ptability of waterjet cleaning shall be determined by the Project Manager as confirme d against Project environmental constraints.

546.3.1 9 SSPC SP-16 – Galvanized Surfaces

Previously galvanized surfac es shall be prepared by the Contra ctor in accordance with SSPC-SP16 – Brush-Off Blast Cl eaning of Coated and Uncoated Gal vanized Steel. Brush-off blast cleaning includes SSPC-SP1 s olvent cleaning or other meth od approved by the Project Manager to remove oil, grease, or other contaminants. The SSPC -SP1 is followed by a dry abrasive blasting using compress ed air, blast nozzles, and abra sives. To avoid formation of zinc oxides that will result in po tential coating failure, blas t cleaning must occur when the surface temperature is a minimum of five degrees (5°) above the dew point and the surface cannot be permitted to get damp after cleaning. The Contractor shall apply coating as soon as possible after surface cleaning. The Contractor shall apply intermediate and top coat products in accordance with manufacturer’s application instru ctions and this Specification.

546.3.1 10 Preparing Glossy Surfaces

All previously coated glossy s urfaces shall be lightly abraded / deglossed prior to re-coating.

546.3.1 11 Testing for Chloride Contamination

Prepared surfaces with exposed metal will be tested by the Con tractor for chloride contamination. All test areas will be recorded for retesting p urposes. A minimum of five (5) tests per 1,000 sf or fraction thereof shall be conducted prior to surface preparation. If results greater than seven (7) micrograms per cubic centimeter are dete cted, the surface shall be re- cleaned as specified and re-tested at the same frequency. If A cceptable results are achieved, surface preparation may begin. 546.3.1.12 Abrasives Used in Blast Cleaning Operations When blast cleaning options are employed in lieu of SSPC SP – 3 and SP – 11 Standards (i.e. SP-7 and SP-6), the Contractor shall select the type of abrasive. All abrasives brought to the site shall be stored in a clean and dry environm ent. Abrasives shall not be recycled or re-used without NMDOT approval.

546.3.1 13 Limited Access Areas

A best effort with the specified methods of cleaning shall be performed in limited access areas. These methods may need to be supplemented with other Eq uipment such as angle nozzles, to properly clean the limited access areas. The Accep tability of the best effort cleaning in these areas is at the sole discretion of the Projec t Manager. When replacing a concrete Bridge deck, the Contractor shall no t clean or coat the top surfaces of top flanges of beams and girders and shear connecto rs.

546.3.1 14 Chemical Paint Removal

Chemical removal products and methods may be approved by the D epartment.

546.3.2 Coating

546.3.2 1 Mixing the Coatings

The Contractor shall mix the coatings with a power mixer in ac cordance with the coating manufacturer’s directions until the Material is smooth and lump -free. The Contractor shall not use paint shakers. The Contractor shall mix the Material as far as possible in it s original container and continue mixing until the metallic powder or pigment is in susp ension. The Contractor shall thoroughly disperse the coating solids th at may have settled to the bottom of the container. The Contractor shall strain coatings through a 30 – 60 mesh screen, or per coating manufacturer’s recommendations. The Contractor shall continuously agitate mixed coatings until application.

546.3.2 2 Thinning the Coating

The Contractor shall not thin the coatings without the approva l of the Project Manager. If it is necessary to thin the coatings, the Contractor shall thin the Material in accordance with the manufacturer’s recommendations.

546.3.2 3 Coating Application

The Contractor shall apply the coating system with a brush, ro ller, or by spraying (preferred). The Contractor shall use nozzles and pressures in accordance with the manufacturer’s recommendations. A stripe coat shall be applied to all edges, corners, seams, c revices, interior angles, junctions of joining members, r ivets, bolt heads, nuts and thre ads, welds and similar irregularities. The stripe coats shall be of sufficient thickn ess to completely hide the surface being covered and shall be followed, as soon as practicable, by a full application of the appropriate coating to its specified thickness.

546.3.2 4 Temperature and Weather Limitations

546.3.2 4.1 Temperature

The Contractor shall apply the coating when the air and surfac e temperatures are above 50 °F and at least five (5) °F above the dew point. The Contractor shall not apply coatings on metal surfaces with condensation or frost.

546.3.2 4.2 Humidity

The Contractor shall not apply the coatings when the relative humidity is above 85%.

546.3.3 Priming

The Contractor shall prime coat all steel surfaces prepared in accordance with SSPC SP- 11. The Contractor shall apply primer the same Day as cleaning , unless otherwise authorized by the Project Manager. The Contractor shall re-clean surfaces that develop rust or are contaminated with Deleterious M aterial before coating, at no ad ditional cost to the Department.

546.3.4 Intermediate and Topcoat

The Contractor shall ensure the primer is cured and dry before applying subsequent coats. The Contractor shall not allow the manufacturer’s recommended maximum time to lapse between coats.

546.3.5 Thickness of Coatings

The Department will reject the coating if the DFT (dry film th ickness) gauge shows less than the specified minimum thi ckness for any coating. The Cont ractor shall provide coating thicknesses in accordance with Table 546.3.5:1, “Required Film Thicknesses.” Table 546.3.5:1 Required Film Thicknesses Coating Dry film thickness range (mils) Coating System No. 1 - Polyurethane Topcoat Overcoat / Repair S ystem (As required for Surfaces Coated per Section 544, “Protective Coating of New Str uctural Steel” and Certain Items per Section 545, “Protecti ve Coating of Miscellaneous Str uctural Steel”) Primer (epoxy organic zinc) 3.0 – 5.0 mils Intermediate (epoxy) 5.0 – 8.0 mils Topcoat (polyurethane) 3. 0 – 5.0 mils Topcoat (polyurethane) 3. 0 – 5.0 mils Coating System No. 2 - Acrylic Topcoat Overcoat / Repair System (As Required for Designated Items per Section 545, “ Protective Coating of Miscel laneous Structural Steel”) Primer (epoxy organic zinc) 3.0 – 5.0 mils Topcoat (acrylic) 2.0 – 4.0 mils The Contractor shall determine the dry film thickness using ma gnetic film thickness gauges, per latest version of SSPC PA-2 Procedure for Determini ng Conformance to Dry Coating Thickness Requirements. The Contractor shall calibrate the gauges on blasted steel with plastic shims approximately the same thickness as the mini mum dry film thickness. All dry film thickness requirements are to be measures above the pe aks of the blast profile.

545.3.6 Field Repair of Liquid Coatings

Field repair shall be accomplished with the same surface prepa ration and coating system used for the original application with the exception that organ ic zinc rich primer may always be used. The Contractor shall field repair coated areas that are rusted or damaged. The Contractor shall prepare the surface in accordance with 546.3.1 , “Surface Preparation of Existing Bridges and Structures ” or with methods approved by th e Project Manager. Section 546: Recoating Structures Page 550 The Contractor shall prime large areas using spray Equipment, brush, or roller. The Contractor shall prime small areas with a brush. The Contracto r shall spray or brush the topcoat. Two (2) or more coats may be necessary to build up th e required film thickness. The Contractor shall apply topcoat only to areas where the topcoat is damaged.

546.3.7 Protection of the Work and Public

During the coating operations, the Contractor shall protect th e Work and the public from blast cleaning operations, paint s platter, splashes and smirche s with protective covering or other methods approved by the Project Manager. When the protective devices or procedures are ineffective, the Project Manager may suspend the Work until corrections take place. The Contractor shall remove blasting and coating debris from a ll on-site Work before reopening the area to traffic.

546.3.8 Inspection

The Contractor will be responsible for performing and document ing Quality Control (QC) inspections of all s hop / field surface preparation and coating activities. When the Contract requires painting more than 500 square feet of steel surface, t he Contractor shall reference Section 544.2.2.3, “Contractor Qualifications.” When the Contr act required painting less than 500 square feet of steel surface, the Contractor shall document all QC inspection activities, measurements and observations on the Daily Inspection report. These reports shall be submitted to the Project Manager a t a minimum on a weekly basis and shall account for all Work performed. The Contractor shall notify the Project Manager at least ten ( 10) Days before surface preparation and/or coating to allow adequate time to plan inspe ction activities. After completing erection, the Project Manager will inspect th e surfaces to be embedded in concrete. The Contractor shall repair damaged or rusted sur faces before placing decks. After placing the deck and at an agreed upon time, the Project Manager will inspect the entire steel Structure for coating system damage. The Project Manager will mark damaged areas for repair and will re-inspect after repairs are complete.

546.4 METHOD OF MEASUREMENT The Project Manager will measure cleaned areas in accordance w ith SSPC-SP 11 and

SSPC-SP 3 before the application of the prime coat.

546.5 Basis of Payment

Pay Item Pay Unit Recoating Structures Lump Sum SP 6 Commercial Blast Cleaning Lump Sum SP 3 Power Tool Cleaning Square Foot SP 11 Power Tool Cleaning Square Foot SP 16 Brush-Off Blast Cleaning of Galvanized Steel Lump Sum

546.5.1 Work Included in Payment

Section 546: Recoating Structures Page 551 The following items will be considered as included in the paym ent for Recoating Structures and will not be measured and paid for separately: 1. Cleaning all exposed areas of existing steel members in acco rdance with SSPC-SP 1; 2. When SSPC-SP 6 is performed at the Contractor’s discretion i n lieu of SSPC-SP 11, SSPC-SP 11 shall be used as the pay item; 3. When SSPC-SP 7 is performed at the Contractor’s discretion i n lieu of SSPC-SP 3, SSPC-SP 3 shall be used as the pay item; 4. SSPC-SP 11 power-tool cleaning and priming of those areas de signated in the Contract to be so included in the Lump sum price; 5. SSPC-SP 3 power-tool cleaning and priming of those areas des ignated in the Contract to be so included in the Lump sum price; 6. When the manufacturer requires surface preparation other tha n SSPC-SP 6, 3, 11, or 16 and the surface preparation is not called out to be Incid ental to other Bid Items, the surface preparation shall be paid through an existin g pay item that is closest in effort to that required. The Project Manager shall determine which pay item shall be used; 7. Furnishing and applying the appropriate coating system to al l exposed steel surfaces of the Structure; 8. Any field touch-up required to correct shipping or installat ion damage; 9. Final cleanup of the Structure and the immediate area; and 10. Re-caulking the perimeters of all railing post base plates per Section 543, “Metal Railing.” Section 547: Safety and Environm ental Requirements for Painting Operations Page 552 SECTION 547: SAFETY and ENVIRONMENTAL REQUIREMENTS for PAINTING OPERATIONS

547.1 Description

This Work provides for the protection of the environment and p roperty, and the safety and health of persons during paint r emoval and application (paintin g operations). Paint is found predominantly on Department Bridges and may or may not be lead-based. If lead-based paint exists, the Contractor will be alerted via a Notice to Contractor. All Work detailed in this spec ification shall be performed in full accordance with all applicable State, Local, and Feder al regulations. In matters o f non-compliance, the Project Manager may call an immediate halt to all painting operations u ntil the matter is corrected. If a conflict arises between this specification and any of the applicable State, Local, and Federal regulations, the applicabl e regulation takes precedence .

547.2 MATERIALS—Reserved

547.3 Safety and Environmental Requirements

547.3.1 General Safety Requirements

Below is a partial list of applicable safety and health regula tions. The reference is parenthetical: 1. General health and safety provisions (29 CFR 1926.20) includ ing training and personal protective equipment; 2. Occupational health and envir onmental controls (29 CFR 1910 Subpart G, and 29 CFR 1926.62 (specifically for lead)); 3. Personal protective and life-saving equipment (29 CFR 1926 S ubpart E and 29 CFR 1910 Subpart I); 4. Medical monitoring (29 CFR 1926.62) and safety and health pl a n ( 2 9 C F R 1 9 2 6 Subpart D); 5. Tools, Equipment (29 CFRs 1926.300 through 302, and 29 CFRs 1910.242 through 244); and 6. Other applicable State, Local, and Federal regulations.

547.3.1 1 Safety Compliance Documentation

The required submittals to the Project Manager differ slightly when lead-based paint is present and when it is not. Details are listed below. For sub mittal schedules, refer to Section

547.3.2 5, “Submittals and Certification.”

With exceptions, the list below presents the documents require d to confirm compliance with this section. A written copy of the Contract or’s site-specific safety and he alth plan (HASP) that includes, among other items: 1. A written and signed statement that the HASP conforms to 29 CFR 1926.65; 2. A brief description of all painting operations; 3. A written description of the C ontractor’s exposure assessmen t plan; Section 547: Safety and Environm ental Requirements for Painting Operations Page 553 4. The identity all person(s) on site and their specific role. Of primary importance are those is direct responsible char ge for painting operations, job site inspections, HASP enforcement, and emergency response. All staff training m ust be up to date; 5. A complete schematic or Plan of the containment structure or engineering control; 6. A schematic of the temporary waste-paint storage staging are a; and 7. Copies of the applicable Safety Data Sheets.

547.3.1 2 Provisions for Department Employees

The Contractor shall provide for two (2) Department employees, personal protective equipment and other tools as approp riate for inspections of pai nting operations. The Contractor shall include these employees in the pre-entry brief ing as required by 29 CFR 1926.65.

547.3.2 General Environmental Requirements

During all painting operations, the Contractor shall adhere to the environmental regulations listed below: 1. 20 NMAC 4 - Hazardous Waste; 2. 20 NMAC 9 – Solid Waste; 3. 40 CFR 262 – Standards Applicable to Generators of Hazardous Waste; 4. 49 CFR 172 through 178 – Transportation; and 5. Other applicable State, Local, and Federal regulations.

547.3.2 1 Waste Containment

The Contractor shall utilize a containment structure appropria te for the Work location and measure its effectiveness using an industry accepted appropriat e method. For industry- accepted practices, the Contractor may refer to the Steel Struc tures Painting Council’s (SPCC) painting application (PA) guide 6 – Guide for Containing Debris Generated During Paint Removal Operations . The Contractor shall contain within the Work area, all paint d ebris and waste Material generated during painting operati ons. No visible or noticeable paint or debris/waste shall escape to the surrounding air, soil, or water. The Contractor shall suspend operations immediately and adjust the procedure and/or make necessary repa irs if visible paint or debris/waste escapes from the cont ainment structure. At no cos t to the Department, the Contractor shall mitigate all releases. 547.3.2.2 Waste Collection The Contractor shall collect and prepare waste paint and surfa ce preparation debris and all fugitive debris/waste for disposal. The Contractor shall minimize, to the extent possible, the unn ecessary generation of paint waste/debris. The Contractor is responsible for proper packaging, labeling, marking, and placarding of the paint waste/debris (49 CFR 172). Under no circumstances sh all waste other than paint waste/debris be disposed of in the packaging. Section 547: Safety and Environm ental Requirements for Painting Operations Page 554 At the end of each Working Day, packaged waste shall be secure d in a locked enclosure at the Project site. The contained paint waste/debris must be disposed of immediately after paint removal operations are complete, or, when warranted, imme diately after the issuance of an EPA-ID number.

547.3.2 3 Disposal

The Contractor shall arrange for and execute the proper dispos al of paint waste/debris. The paint waste/debris shall be disposed of at a landfill permi tted to accept the particular class of waste (hazardous or non-hazardous). Lead-based paint waste shall be considered hazardous. The Con tractor shall complete the waste manifests and waste profiles and present them to the Project Manager for signature. If, based on weight, an EPA-ID number is required, the Contrac tor shall apply for and reference on all disposal paper work, the assigned EPA-ID number . Following disposal, the Contractor shall be responsible for submitting to the NMED, the Annual Hazardous Waste Fee Report. For industry-accepted disposal p ractices, the Contractor may r efer to the SPCC’s PA guide 7 – Guide to the Disposal of Lead-Cont aminated Surface Preparation Debris .

547.3.2 4 Air Quality and Soil Contamination

If painting operations include the removal of lead-based paint and if required by the Contract, the Contractor shall monitor air and soil for lead co ntent before, during, and after painting operations. Evidence of a release shall be re ported immediately to the Pro ject Manager and to the NMED. At no cost to the Department, the cause for the release shall be repaired and the waste itself shall be remediated, transported, and disposed.

547.3.2 5 Submittals and Certification

By the Pre-Construction Conference, the Contractor shall submi t to the Project Manager, the safety compliance documentation listed in section 547.3.1.1 . The Project Manager will maintain a copy in the Project Office and will provide written confirmation of its receipt. Within 90 Days after painting operations, the Contractor shall submit the information listed below. The Project Manager will provide written confirm ation of its receipt: 1. A signed statement that the work is complete; that all appli cable rules, laws, and regulations were followed; and descriptions of all releases, or the absence thereof, and the measures taken to address them; 2. Completed, signed, and legible copies of the waste manifest (s) and waste profile(s); 3. If warranted, a copy of the submitted Annual Hazardous Waste Fee Report; and 4. Any other pertinent paperwork.

547.4 METHOD OF MEASUREMENT—Reserved

547.5 Basis of Payment

Section 547: Safety and Environm ental Requirements for Painting Operations Page 555 The safety compliance documentat ion described in Section 547.3 .1.1, “Safety Compliance Documentation” and t he disposal documentation listed in Section 547.3.2.5, “Submittals and Certification” serve as the basis for payment. Payment will not be made if this documentation is incomplete or absent. Pay Item Pay Unit Safety and Environmental Requirements Lump Sum

547.5.1 Work Included in Payment

The following Work and items are considered as included in the lump sum payment and no separate payment shall be made: 1. All time and materials necessary to produce the pre- and pos t-construction compliance documentation, contai nment structure plans, reportin g, and fees; 2. All painting operation needs i ncluding: labor, tools, equipm ent, materials, monitoring, testing, storage; 3. All waste collection and dis posal needs including packaging, loading, transport, manifesting, tracking, disposal, NMED reporting requirements, a nd all associated fees; and 4. All other needs necessary to comply with these safety and en vironmental requirements. Section 548: Coating of Concrete Page 556