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** f • ' ■ <br />mi' <br />-mm <br />2.1.1.2 <br />2.1.1.3 <br />2.1.1.4 <br />2.1.2 <br />2.1.3 <br />2.1.4 <br />2.1.5 <br />Deck boards shall not have any holes, loose knots or wane and shall <br />not have sap or free flowing preservative on the walking surface. <br />Lumber shall be kiln dried prior to treating to the moisture content <br />designated in accordance with SPIB rules. All lumber shall have a <br />minimum of 0.40 pounds per cubic foot of preservative retained after <br />treatment except lumber which is in continuous contact with water. <br />Such lumber shall have a minimum of 0.60 pcf of preservative <br />retained after treatment. The Engineer, at his/her discretion, may <br />assay the treated lumber and have the AWPB laboratory test the <br />pressure treatment retention of all lumber prior to acceptance at <br />the contractor's expense. <br />After treatment, lumber shall again be kiln dried to a maximum <br />moisture content of 19 percent. <br />Structural and Miscellaneous Steel: Structural and miscellaneous <br />Steel shall crnform to the requirements of the Standard <br />Specification for Structu ?1 Steel, ASTM Designation A36 or <br />stronger. All steel shall be zinc coated (hot-dipped) in accordance <br />with the requirements of ASTM Designation A123. <br />Structural Aluminum: Structural aluminum shapes and/or extrusions <br />shall be made from 6061-T6 aluminum conforming to the requirements <br />of ASTM Designation B221. <br />Fasteners: Bolts, lag bolts, screws, nails, flat washers and lock <br />washers shall be of the type and size best suited for the intended <br />use. Low-c--ton bolts shall conform to the requirements for Grade <br />"A" bolts, AjTM Designation A307. High strength bolts shall conform <br />to the requirements of ASTM Designation A325 or A490. All fasteners <br />shall be hot dipped galvanized or mechanically galvanized by the <br />MACU Guard method or approved equal. MACU Guard is a process <br />licensed by MacDennid Inc., 50 Brookside Road, Waterbury, CT 06708, <br />Phone (203)575-5700. The coating thickness shall be of a minimum <br />that corrosion of nonwear surfaces does not appear during the <br />warranty period. Stainless steel fasteners may be substituted for <br />protected steel. <br />Cleats: Cleats shall either be heavy duty 10 inch cast iron galvanized <br />units as manufactured by Wilcox-Crittenden or of bullhorn design made <br />of cast aluminum alloy 319 (27,000 psi tensile, 18,000 psi yield) with <br />countersunk hex bolt head lock features as manufactured by Macatawa <br />Associates of Holland, Michigan, or an approved equal. Cleats shall <br />be of the size indicated and shall be installed at the locations shown <br />on the drawings designated FP-1 and FP-2 appended to this Section. <br />Except if otherwise noted on the construction drawings, cleats shall <br />be securely bolted directly to the pier's structural framing or <br />fastened securely to the structural fraiaing through appropriate <br />intermediate members as approved by the Engineer. Cleats shall be as <br />close to the outside edge of the piers as possible and In such a <br />location that tightening of bolts and nuts holding the cleats is as <br />easy as possible. Bolts, nuts and washers (both standard and lock) <br />shall be of adequate size and strength for tying up boats normally <br />using the slip adjacent to the cleats and shall be hot dipped or <br />mechanically galvanized. <br />- 9 -