8−173The rail supports on posts shall be drafted or pitched to permit continuity of rails past the posts without cramping or crimping the rails. If rails are to be shop cut, positioning of anchor bolts must be checked in the field prior to cutting to establish rail lengths. Adjacent anchor bolts shall be trimmed as necessary to present a visual uniformity of grips. The anchor bolts shall extend or be trimmed to a proper grip for the nut. All aluminum faces to be installed in contact with concrete or dissimilar metal surface shall be heavily coated with an approved al uminum impregnated caulking com pound or zinc chromate paint. Alternatively, a synthetic rubber gasket may be placed between the two surfaces. 830.04 METHOD OF MEASUREMENT. "Aluminum One-Bar Ornamental Rail," "Steel Four-Bar Rail," "Baldwin Four-Bar Ornamental Rail," and "Steel Two-Bar Rail (Crash-Tested)" will be measured by the number of linear feet of each such type actually installed in accordance with the Plans and/or as directed by the Engineer.
830.05 BASIS OF PAYMENT. The accepted quantities of "Aluminum One-Bar Ornamental Rail,"
"Steel Four-Bar Rail," "Baldwin Four-Bar Ornamental Rail," and "Steel Two-Bar Rail (Crash- Tested)" will be paid for at their respective contract unit prices per linear foot as listed in the Proposal. The prices so-stated constitute full and complete compensation for all labor, materials and equipment, including anchor assemblies and all incidentals required to finish the work, complete and accepted by the Engineer. SECTION 831 PEDESTRIAN CHAIN LINK FENCE - ALUMINUM
831.01 DESCRIPTION. This work consists of providing alum inum chain link fence at the locations
indicated on the Plans or as directed by the Engineer, all in accordance with these Specifications. 831.02 MATERIALS. Materials for pedestrian chain link fence shall conform to both the applicable provisions of SECTION M.08; FENCE AND GUARDRAIL , of these specifications and the following additional requirements. 831.02.1 Wire Fabric. Aluminum chain link fence wire fabric shall be No. 9 gauge (.148" diameter) wire fabric and shall have a uniform diamond mesh measuring approximately 2 inches between parallel sides. It shall be woven from aluminum alloy 6061 T89-94 (ASTM B211) wire having a minimum tensile strength of 50,000 psi. After the fabric has been woven, it shall be cleaned to remove all weaving compounds and foreign matter. 831.02.2 Posts. Aluminum posts shall be 2½-inch schedule 40 (2.875" OD) pipe weighing 2.004 pounds per foot. The posts shall be aluminum alloy 6061-T6 (ASTM B221). 831.02.3 Rails . Aluminum rails shall be 1¼-inch schedule 40 (1.660" OD) pipe weighing 0.786