GENERAL PROVISIONS FOR ALUMINUM ITEMS (INCLUDING WELDING )
965-1 General.
This Section covers the material and fabrication requirements for aluminum components. All aluminum light poles, J -arms, and railings supplied under this Specification shall be from producers currently on the Department’s Production Facility Listing. Produ cers seeking inclusion on the Department’s Production Facility Listing must meet the requirements of Section 105.
965-2 Fabrication.
Provide fabricated components in accordance with AASHTO LRFD Specifications for Structural Supports for Highway Signs, Lum inaires and Traffic Signals, the Design Plans, and this section. Verify the strength of each Lot by tensile test. Alternate testing will not be accepted. Protect against damage and marring during transit and delivery . Provide an anodic coating (minimum 0.0 002 inch) and chromate seal all hardware. Table 965-1 Material Requirements for Aluminum Components Product Test Method Alloy/Temper Reported Properties Pole, Arm, Extrusions ASTM B221 6061-T6 Alloy, Temper, Thickness , Tensile Strength 6063-T6 Pedestal, Posts ASTM B429 6061-T6 Bars, Plates, Stiffeners, Backing Ring, Shims, Shapes ASTM B221 6063-T6 6061-T6 ASTM B209 6061-T6 ASTM B308 Railing ASTM B221 6351-T5 6061-T6 ASTM B241 ASTM B210 ASTM B429 J-Arm Tube ASTM B429 6061-T6 ASTM B221 J-Arm Connection Plate ASTM B209 6061-T6 Sheet ASTM B209 6061-T6 5154-H38 5052-H38 Structural Shapes ASTM B308 6061-T6 ASTM B221 Single Column Ground Sign Sand Castings ASTM B26 A356-T6 ASTM B108 A356-T61 Washers ASTM B221 7075-T6 2024-T4 FY 2023-24 Return to Table of Contents
965-2.1 Light Poles: Provide aluminum lighting poles in accordance with this section
and Table 965 -1. Weld arms and poles in the T4 condition, using the filler metal ER4043, ER4047, ER5183 , ER5356, or ER5556 in accordance with AWS D1.2 Aluminum Structural welding Code. Weld to castings in accordance wi th 965-2.3. Heat treat the arm and pole, until aged to the T6 condition. Transverse welds are only allowed at the base. Equip poles with a vibration damper, when specified in the contract documents. Provide exterior surface with a clean, uniform silvery appearance, free of dark streaks and discoloration. Finish the pole and arm with a satin rubbed finish.
965-2.2 Overhead Sign Components: Provide aluminum toll gantry J -arms in
accordance with this section and Table 965 -1. Weld tube to plate connections i n the T4 or T6 condition, using the filler metal ER4043, ER4047, ER5183, ER5356, or ER5556 in accordance with AWS D1.2 Aluminum Structur al welding Code. Heat treat tube and plate in the T4 condition until aged to the T6 condition. Provide exterior surfac e with a clean, uniform silvery appearance, free of dark streaks and discoloration.
965-2.3 Castings: Provide aluminum castings in accordance with this section and
Table 965-1. Weld aluminum castings to itself or aluminum tube to castings using the filler metal ER4043, in accordance with AWS D1.2 Aluminum Structural welding Code. Heat treat the castings, until aged to the T6 condition.
965-2.4 Railing : Provide aluminum railing in accordance with this section and
Table 965-1. Weld aluminum railing using the filler metal ER4043, ER4047, ER5183, ER5356, or ER5556 in accordance with AWS D1.2 Aluminum Structural welding Code .
965-2.5 Static Sign Assemblies: Provide aluminum sheet, plate and structural shapes in
accordance with this section and Table 96 5-1. Weld structural profiles to itself or aluminum components using ER4043, ER 4047, ER5183, ER5356 or ER5556 in accordance with AWS D1.2 Aluminum Structural Welding Code. Heat treat the structural profiles, until aged to the T6 condition.
965-2.6 Transformer Bases (Excluding Lighting) :
965-2.6 1 Product Acceptance: Manufacturers seeking evaluation of products for
inclusion on the APL shall submit an application in accordance with Section 6 and include the following documentation , showing that the product meets the applicable requirements . Table 965-2 Submittal Compliance Requirements Documentation Requirements Certified Test Report Shows that product meets Moment Capacity Installation Instructions Include installation instructions Table 965-1 Material Requirements for Aluminum Components Product Test Method Alloy/Temper Reported Properties Button Head or Flat Head Bolts ASTM F468 2024-T4 6061-T6 S2 Lot Testing, Alloy, Temper Hex Nuts ASTM F467 6061-T6 6262-T9 2024-T4 S2 Lot Testing, Alloy, Temper FY 2023-24 Return to Table of Contents Table 965-2 Submittal Compliance Requirements Documentation Requirements Product Identification Photo Display’s the manufacturer’s name or logo and the model number. Product Photo Displays the significant features of the product as required in this section. Technical Data Sheet or Product Drawing Uniquely identifies the product and includes product details, notes, material specifications, dimensions, and sizes meeting the specific ation
965-2.6 2 Physical Requirements: Meet the requirements of Table 965-3.
Table 965-3 Physical Requirements for Transformer Base Feature Requirement Documentation Height Base is 12 to 18 inches in height Technical Data Sheet or Product Drawing Base Material ASTM B26, 356 T6 or 319 Technical Data Sheet or Product Drawing Threaded Hub Hub located at the top for mounting a nominal 4 -inch Schedule 40 (4 -1/2-inch outside diameter) aluminum pole. The threaded hub must be tapped to allow full pole engagement. Technical Data Sheet or Product Drawing Fastening Provides for fastening to a foundation with four 3/4 -inch anchor bolts located 90 degrees apart. The base design must allow for bolts that are placed off -center. Technical Data Sheet or Product Drawing Door Size Provides a door opening of not less than 8 inches by 8 inches. Technical Data Sheet or Product Drawing Door Material The door must be constructed of fiberglass or other non -combustible, non - aluminum material. Technical Data Sh eet or Product Drawing Door Attachment Attach the door to the base with cleats and one stainless steel socket button head screw or by other means suitable for NEMA 3 electrical enclosures. Technical Data Sheet or Product Drawing Moment Capacity Supports an ultimate moment capacity of 10,000 foot -pounds, without breaking, cracking or rupturing in any manner. Certified Test Report Breakaway Meets the requirements in the AASHTO LRFD Specifications for Structural Supports for Highway Signs, Luminaires, and Traffic Signals. FHWA Eligibility Letter. FY 2023-24 Return to Table of Contents
965-3 Paint for P oles, Pedestals, and Posts.
Paint systems used on aluminum poles, pedestals, and posts shall meet the color requirements as specified in the Contract Documents. All paint systems shall possess physical properties and handling characteristics that are compatible with the application requirements of Section 646. Materials shall be specifically intended for use over aluminum . Paint systems shall exhibit no loss of adhesion or total color di fference (ΔE* ab) greater than 8.0 units for five years after final acceptance as specified in 5 -11. An aluminum pole, pedestal, post , or sign panel that exhibits a cumulative surface area of delamination in excess of 50 square inches will constitute an adhesion failure. Delamination shall be defined as any area of exposed metal surface subsequent to hand tool cleaning. A ΔE* ab value exceeding 8.0 units per the International Commission on Illumination L*a*b* 1976 (CIELAB) space and color difference formula, measured in accordance with ASTM D2244, will constitute a color retention failure. The Department will measure and enter in the Department’s database the CIELAB color chromaticity coordinates for the color of the top coat of sample coupons provided as req uired by
646-2.7 using a BYK -Gardner Handicolor colorimeter using D65 illuminant and 2 -degree
geometry settings. The Department -measured CIELAB chromaticity coordinates shall define the initial color and will be used for resolution of color retention failu res and the resolution of color retention disputes.
965-4 Certification .
Produce a certificate of compliance for non -APL products, upon request of the Engineer. Certificates of compliance shall identify the reportable properties of Table 965-1. FY 2023-24 Return to Table of Contents SECTION 967 COMPONENTS FOR GUARDRAIL
967-1 General.
This Section covers the material and fabrication requirements for guardrail components . All timber and steel components supplied under this Specification shall be from producers currently on the Department’s Production Facility Listing. Producers seeking inclusion on the Department’s Production Facility Listing must meet the requirements of Section 105.
967-2 Timber Posts and Timber Offset Blocks .
Timber products must have a minimum stress grade of 1200 psi and meet the material requirements of Section 954. Timber is to be dressed on four sides (S4S) and treated in accordance with the post requirements in Section 955. Timber posts and offset blocks shall be shaped and drilled prior to wood treatment. Posts shall not vary more than 1 inch and offset blocks shall not vary more than 0.25 inches from the specified dimensions shown in the Standard Plans.
967-3 Steel Components .
Steel materials must meet the requirements of Table 967-1 below. Production facilities must submit certified mill analyses to the Department for review and approval. Certified mill analyses must be signed by a quality control representative, describe each LOT of components, and show compliance wi th Table 967 -1. All steel components must be melted and manufactured in the United States. The certified mill analysis must show that the included material meets the Buy America, Source of Supply - Steel requirements in Section 6. Where specified, components must be welded in accordance with the American Welding Society Structural Welding Code ANSI/AWS D1.1 using material conforming to E60XX. Nondestructive testing of welds is not required. Table 967 -1 Material Requirements for Steel Gua rdrail Components Product Standard Grade / Type Style Reportable Properties Steel Panels AASHTO M 180 Type 2 Class A (12 Ga.) Class B (10 Ga.) W-Beam Heat, Yield, Tensile, Elongation, Class, Type Thrie-Beam Thrie-Beam Transition End Pieces AASHTO M 180 Type 2 Class A (12 Ga.) Class B (10 Ga.) All Yield, Tensile, Class, Type Steel Posts & Offset Blocks ASTM A36 36 All Killed, Yield, Tensile, Elongation ASTM A992 50 All Steel Plates ASTM A36 36 All Killed, Yield, Tensile, Elongation FY 2023-24 Return to Table of Contents