930 Page 542930 CHAIN LINK FENCE
930.1REQUIREMENTS
Chain link fence material will conform to AASHTO M 181. Chain link fabric, posts, rails, ties, bands, bars, rods, and other fittings and hardware will be Type I. Chain link fabric will be 9 gauge. Posts, rail, and gate frames will be Grade 1 or 2. Grade 2 posts, if used, will have an exterior PVC coating conforming to Class A or an exterior coating of hot-dip zinc plus an organic topcoat and a zinc rich or hot-dip zinc interior coating. The fabric will have a Class C coating. Tension wire will be Class 2. 950 Page 543950 WOOD PRESERVATIVES AND PRESERVATIVE TREATMENTS
950.1REQUIREMENTS
A.General The preservative treatment will comply with the EPA, AASHTO M 133, and the AWPA Standard U1 referenced in AASHTO M 133 and described below. Commodity Specification A – Sawn Products*1 Commodity Specification B – Post Commodity Specification D – Poles Commodity Specification E – Round Timber Piling *1Guardrail posts and blocks will be treated with retention specifications from commodity specification B, use category 4B. B.Preservative Selection 1.Sawn posts, round posts, poles, and lumber in contact with the ground will be treated with preservatives meeting the requirements of ASSHTO M133 or AWPA Standard U1. Commodity Specification A: Sawn Products – use category UC4A Commodity Specification B: Posts – use category UC4A Commodity Specification D: Poles – use category UC4A, UC4B, or UC4C 2.Lumber not in contact with the ground will be treated with preservatives meeting the requirements of AWPA Standard U1 Commodity Specification A: Sawn Products – use category UC3B at a minimum. 3.Round timber piling will be treated with preservatives meeting the requirements of AWPA Standard U1 Commodity Specification E: Round Timber Piling – use category UC4C. C.Western Red Cedar Wood preservative treatment for Western Red Cedar is not required and will be exempt from the above requirements.