637MAILBOXES

637.01 Description. This item shall consist of furnishing and

erecting mailbox posts and installing existing mail boxes on the new posts according to the plans and these specificatio ns. When required, it shall also include furnishing and inst alling new mailboxes.

637.02 Materials. The mailbox post shall be either metal or

coniferous wood and shall be the size shown on the plans. Wood posts shall be pressure treated with creosote, pent achlorophenol or chromated copper arsenate. Metal posts shall be ei ther galvanized or painted. Mailbox support hardware, including shelf, platform and bracket shall be as shown on the plans. Anti-twist plate, clamps, spacers, nuts, bolts, and washers shall be painted or galvan ized steel. New mailboxes, when specified on the plans or direc ted by the Engineer, shall comply with the U.S. Postal Service and shall be the same size as the existing mailbox.

637.03 Construction Methods. Mailboxes shall be located on

the right-hand side of the roadway in the direction of the delivery route. The bottom of the box shall be set at an el evation 3'-6" (1 m) above the roadway surface. The roadside face of th e box shall be 6" (150 mm) from the edge of the shoulder or 6" (150 m m) from the face of the curb. Where a mailbox is located at a driveway entrance, it shall be placed on the far side of the driveway in the direction of the delivery route. Where a mailbox is located at an intersecting road, it shall be located a minimum of 100' (30 m) beyond the center of the intersecting road in the direction of the de livery route. If requested by the local postmaster, height and place ment of mailboxes may vary slightly as directed by the Engi neer. 531 No more than two mailboxes may be mounted on one po st. Post spacing for multiple mailbox installations shall be a maximum of 36 ″ (1 m). The mailbox post shall be embedded a minimum of 24" (600 mm) into the ground. A metal post shall have an anti-twist plate that extends no more than 10 ″ (250 mm) below the ground surface. The existing mailbox shall be separated from the ex isting post and attached to the new post. If the existing mail box is damaged beyond repair by the Contractor, the mailbox shall be replaced at no cost to the Department. If the existing mailbox ca nnot physically be removed from the existing post and re-used, the mai lbox shall be replaced under the item Mailboxes. When a mailbox is replaced, the Contractor shall be responsible for placing identif ication markings on the new mailbox corresponding to the markings on the original mailbox. Unless otherwise specified, all existing mailbox su pports shall be removed and replaced with new supports. If directe d by the Engineer the existing mailbox shall be restored und er the Contract item Remove and Restore Mailboxes.

637.04 Method of Measurement. Mailbox Supports,

Mailboxes, and Remove and Restore Mailboxes will be measured by the unit.

637.05 Basis of Payment. Work completed and accepted and

measured as provided above will be paid for at the contract unit price bid per each for Mailbox Supports of the type specified, for Mailboxes, or for Remove and Restore Mailboxes, whi ch price shall be full compensation for furnishing all materials: for setting posts; for removing and reattaching existing mailboxes; an d for all labor, equipment, tools, and incidentals necessary to comp lete the work. Payment will be made under: Pay Item Pay Unit Mailbox Supports (single) Each Mailbox Supports (double) Each Mailboxes Each Remove and Restore Mailboxes Each 532 SECTION 638 PAINTING OF MISCELLANEOUS STEEL

638.01 General. Miscellaneous steel is normally all metal used

on the project except that used in bridges. When p ainting of miscellaneous steel is specified, the Contractor ma y, at Contractor option, elect to use either the paint system specif ied for painting bridges on the project or the paint system specifie d in this Section. Existing bridge steel may also be painted by this s ystem when specified in the plans and cleaned according to Sub section 820.05(b). The Contractor shall exercise every reasonable prec aution throughout the life of the project to prevent pollu tion of rivers, streams, or impoundments. Painting and cleaning op erations conducted over or in the vicinity of public waters shall be controlled to prevent materials or waste, considered a contami nant by the ADEQ, from falling into the water. Any material or waste that falls into the water or onto areas where there is a likel ihood that it will be picked up by rising water levels shall be retrieved and properly disposed of in approved locations. The Contractor shall protect pedestrian, vehicular, or other traffic against damage or disfigurement by drift, spatters, splashes, and smirches of paint or paint materials.

638.02 Aluminum Epoxy Paint System. This system shall

consist of a two component, high solids, high build aluminum epoxy coating that will provide long term protection even when applied over marginally prepared steel. Marginally prepare d steel is defined as steel that has been cleaned according to SSPC-SP 2 (Hand Tool Cleaning), SSPC-SP 3 (Power Tool Cleaning), or SSPC -SP 7 (Brush-Off Blast Cleaning). The coating shall be a one-coat system that is self priming, compatible with existing topc oats, and capable of being satisfactorily applied over tightly adhere d rust. The volume of the solids in the mixed material shal l be 85% or greater when measured according to ASTM D 2697. Th e coating shall be capable of being applied in a single coat of at least 5 mils (125 µm) dry film thickness without sagging and shall hav e a minimum theoretical application rate of 1 gallon pe r 1,400 square feet (1 L/34 sq m) at 1 mil (25 µm) dry film thickness. Lead and chromium pigments will not be permitted. The paint manufacturer 533 shall provide certification that the paint provided meets the preceding requirements. Thinning will be allowed a ccording to manufacturer's recommendations. The paint shall be one listed on the QPL.

638.03 Materials. (a) Qualitative Requirements. All coating

systems shall meet the following general requiremen ts:

638.04 Paint Film Thickness. The minimum dry film thickness

of the coat shall be 5 mils (125 µm). Upon completion of the paint coat, a dry film thickness gauge shall be used by t he Engineer for verification of paint thickness. Dry film thicknes s will be determined by methods described by the Steel Struct ures Painting Council. Any paint coat found to be deficient in p aint thickness shall be repainted at no cost to the Department.

638.05 Application of Paint. Paint shall be applied according to

the manufacturer’s recommendations including mixing , weather limitations, thinning, spraying, brushing, or rolli ng. The steel shall receive one coat applied either in the shop or in t he field; however, any damaged paint shall be re-cleaned, if necessary , and re-painted prior to final acceptance. The color shall be Alum inum unless otherwise specified.

638.06 Removal of Unsatisfactory Paint . If any painting

application produces a coat that is unsatisfactory to the Engineer, the paint shall be removed and the metal thoroughly cle aned and repainted.

638.07 Cleaning Surfaces. (a) General. Surfaces of metal to be

painted shall be thoroughly cleaned by removing rus t, loose mill scale, dirt, oil or grease, and other foreign subst ances. Unless 534 cleaning is accomplished by blast cleaning, all wel d areas shall be neutralized with a proper chemical before cleaning is begun, after which it shall be thoroughly rinsed with water. As a minimum, miscellaneous steel shall be cleaned by the Hand Tool (SSPC-SP 2), Power Tool (SSPC-SP 3), or Brush- Off Blast (SSPC-SP 7) cleaning methods as defined by the Stru ctural Steel Painting Council. When applicable, bridge steel wi ll be cleaned according to Subsection 820.05(b).

638.08 Shop Painting. When shop painting is used,

miscellaneous steel shall be painted before it is s hipped from the plant. Surfaces not in contact but that will be inaccessib le after assembly or erection shall be painted before leavin g the plant. Shop contact surfaces shall not be painted. Field conta ct surfaces shall receive a shop coat of the paint system. Field con tact surfaces not painted with the shop coat shall be given a coat of approved lacquer or other protective coating if it is expected that there will be a prolonged period of exposure before erection. Surfaces that will be in contact with concrete shal l not be painted. Paint inadvertently sprayed on such surfaces need n ot be removed. Miscellaneous steel that is to be welded shall not be painted before welding is complete. Steel that is to be fi eld welded shall be given one coat of boiled linseed oil or other appro ved protective coating for 3 ″ (75 mm) either side of the field weld. The remain der of the member may be given the specified shop coat of the paint system. 535 Unless otherwise specified, surfaces of iron and st eel castings, either milled or finished, shall be given one coat of the paint system. With the exception of abutting joints and base plat es, machine finished surfaces shall be coated with a graphite d ry film lubricant or other approved coating. The coating shall be appli ed as soon as practicable after being accepted and before removal from the shop. When steel is painted in the shop, erection and wei ght marks shall be painted upon surface areas that have previ ously been painted with the shop coat. Material shall not be loaded f or shipment until it has thoroughly dried, and in no case less than 24 h ours after the paint has been applied.

638.09 Field Painting. When erection work is complete, any

adhering rust, scale, dirt, grease, or other foreig n materials shall be removed as specified in Subsection 638.07. On field bolts, welds, and surfaces where the shop paint has worn off or has otherwise become defective, the area sha ll be cleaned and thoroughly covered with one coat of field paint. Contact surfaces to be bolted and surfaces that wil l be in contact with concrete shall not be painted. Surfaces that will be inaccessible after erection shall be painted before erection. S mall cracks and cavities that were not sealed in a water-tight mann er shall be filled with an additional application of paint. The following provision shall apply to the applicat ion of field paint: To secure a maximum coating on edges of plat es, shapes, bolts, and other parts subjected to special wear, t he edges shall first be coated with a longitudinal motion and the bolts with a rotary motion followed immediately by the general painting of the whole surface, including the edges and bolts. The Contractor shall, at no cost to the Department, take all precautions necessary to prevent dust and dirt from coming in contact with surfaces to be painted or with freshly painted surfaces. The application of the field paint shall be deferre d until the adjoining concrete work has been placed and finishe d. If concreting operations damage the paint applied in the shop, th e damaged area shall be cleaned and re-painted. 536 638.10 Method of Measurement and Basis of Payment. Painting miscellaneous steel will not be paid for s eparately, but full compensation therefor will be considered included i n the contract unit price bid for the various items of the Contrac t.

MAILBOXES in other states

• Montana 623 · Mailboxes
• Oklahoma 629 · Mailboxes
• Vermont 617 · MAILBOXES