707— Preservation Treatment of Wood Products

707.1 Description

1 Provide preservative treatment for timber and lumber for guardrail posts, fence posts, fenders, dolphins and piling.

707.2 Materials

707.2.1 General

1 Ensure that the supplier of treated wood products uses a third- party treated wood inspection agency accredited by the American Lumber Standard Committee (ALSC) or an independent treated wood inspection company approved by the RCE. Inspect and test the material according to applicable American Wood Protection Association (AWPA) Standards or AASHTO M 133 at no cost to the Department. Provide inspection reports referencing applicable industry standards for each shipment before its use on the project. 2 Ensure that a copy of the inspection agency’s report is provided to the RCE for each shipment. In lieu of LOT inspection, the RCE will accept treated wood material (e.g., sawn lumber or timbers including guardrail posts, blockouts and related components, signposts and fence posts ) manufactured by a facility that is continually monitored by an ALSC accredited third- party treated wood inspection agency or an RCE approved inspection company and bearing the quality mark of the agency. The RCE will visually in spect and approve all treated wood products before use on the project. 3 Ensure that the treatment plant maintains standard quality control procedures as described in AWPA M3.

707.2.2 Wood

1 Use wood products that conform to the requirements of Section 706.

707.2.3 Preservative

1 Use preservatives and treatment methods accord ing to AASHTO M 133, which references the requirements of applicable AWPA Standards and International Code Council – Evaluation Service (ICC -ES).

707.3 Construction

707.3.1 Treating Methods

1 Treat wood products according to AASHTO M 133, which references the requirements of applicable AWPA Standards and ICC -ES.