CattleguardSPEC_20160203183730_510_X.pdf

This is a technical specification document (Section 02879) detailing requirements for welded steel cattle guard grids and accessories. The document outlines detailed design, fabrication, and material requirements for cattle guard grids.

The specification requires cattle guard grids to measure 8 feet in the direction of travel with lengths of 12, 14, or 16 feet as specified in bid solicitation, designed for H-20 loading if alternate design is proposed. Materials must include hot-rolled structural steel sections (ASTM A 36/36M or AASHTO M 183), cold-formed rails (ASTM A 242/242M), and structural tube sections (ASTM A 500 Grade B or ASTM A 618 Grade 2). Construction must be all-welded with AWS D1.1 compliant welds using E 7018 electrodes. Finishing requires a lead-free, zinc-rich primer and Federal Safety Yellow or Fed. Spec. TT-C-595 color no. 13655 oil alkyd-enamel gloss paint, with specific thickness requirements of 1-1/2 mils dry-film for prime coat and 3 mils DFT for finish coat applied in two applications.