915.1 General Description
This section includes the requirements for steel posts, arms, and guy wires and cable for mast arm assemblies.
915.1.01 Related References
A. Standard Specifications Section 106—Control of Materials B. Referenced Documents ASTM A 53/A 53M ASTM A 475 Federal Specification FF-T-2765, Type III QPL 72
915.2 Materials
915.2.01 Steel Posts and Arms for Mast Arm Assembly
A. Requirements 1. Use steel posts and arms of the dimensions shown on the plans and that meet the requirements of ASTM A 53 for Type E or S, Grade B with a galvanized finish. 2. Use pipe of weight class XS, schedule No. 80. Do not use the hydrostatic test requirements. 3. Submit a certification to the Engineer from the manufacturer that the materials meet the requirements of this section. B. Fabrication General Provisions 101 through 150. C. Acceptance The Engineer will accept the material based on the certification, according to Subsection 106.05, Materials Certification, and on results of galvanized coating tests made by the Department. D. Materials Warranty General Provisions 101 through 150.
915.2.02 Guy Wires and Cable
A. Requirements 1. Use guy wires for mast arm assemblies and cable for overhead sign assemblies of the dimensions shown on the plans and that meet the requirements of ASTM A 475, Siemens-Martin Grade, with Class A coating. 2. Provide extra heavy wire rope thimbles that meet Federal Specification FF-T-2765, Type III for each end of the cable. 3. Submit a certificate from the manufacturer according to Subsection 106.05, Materials Certification. For a list of sources, see QPL 72. B. Fabrication General Provisions 101 through 150. C. Acceptance The Engineer will accept the material based on the certificate. D. Materials Warranty General Provisions 101 through 150.
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