706— Wood Products for Use in Highway Construction

700-93 Section 706 — Wood Products f or Use i n Highway Construction

706.1 Description 1 Furnish w ood products for falsework, forms, bracing, sheeting, and miscellaneous wood products. 706.2 Materials 706.2.1 Structural Lumber 1 Use materials as described in the current Southern Pine Inspection Bureau Special Products Rules for structural lumber. Provide the specified size, grade, and length. Where specified, treat structural lumber according to Section 707 . 706.2.2 Dimension Lumber 1 Use materials as described in Section 300 of the current Southern Pine Inspection Bureau Grading Rules . Provide the specified size, grade, and length. For other miscellaneous uses of lumber, not specified on the Plans, use grades and sizes according to the Southern Pine Inspection Bureau Grading Rules for the intended use. Where specified, treat lumber according to Section 707 . 706.2.3 Timbers 1 Use materials as described in Section 400 of the current Southern Pine Inspection Bureau Grading Rules . Provide the size, grade, and length specified on the Plans. Where specified, ensure that treatment is according to Section 707. 706.2.4 Wood Fence Posts and Braces 706.2.4.1 General 1 Furnish wooden fence posts and braces of Southern Yellow Pine. Use round or sawn square posts as specified. For sawn posts and braces, use No. 2 G rade for dimension lumber or timbers as applicable and as described in the Southern Pine Inspection Bureau Grading Rules . Ensure that round posts and braces are sound, free from decay, excessive knots, clusters of knots, or splits that exceed 1½ times the diameter of the elements . Seasoning checks not affecting serviceability are permitted. Ensure that all posts and braces are reasonably straight. 2 Furnish posts in lengths that provide a uniform height of 5 in. above the top strand of wire and a minimum embedment in firm ground of 2½ ft for line posts and 3 ft for other posts. 3 Treat Southern Yellow Pine posts and braces accord ing to Section 707 .