1023ALUMINUM BRIDGE HAND RAILING

1023.1DESCRIPTION—This work is construction of an aluminum bridge hand railing.

1023.2MATERIAL—

• Pipe for the Rails. ASTM B241-Alloy 6061-T6, 6063-T6 or ASTM B429-Alloy 6061-T6, 6063T6.

• Plates. Alloy 6061-T6.

Certify as specified in Section 106.03(b)3.

tension, when tested through a 1/2-inch round hole. Toggle bolts may be cadmium-plated to conform to the requirements of ASTM B766, Class 5, in place of being galvanized. Certify as specified in Section 106.03(b)3.

106.03(b)3

in Section 1105.02(s).

1023.3CONSTRUCTION—Construct as shown on the Standard Drawings and as follows:

Coat surfaces of aluminum alloys in contact with other metals, stone masonry, or concrete, using caulking compound, before erection. Use caulking compound to seal openings between metal surfaces and concrete after erection and alignment. Protect the railing from damage or accumulations of oil, grease, dirt, concrete splatter, or foreign materials. After the other bridge construction operations have been completed, clean the aluminum bridge hand railing. Remove accumulations of oil, grease, dirt, or foreign materials, using an acceptable solvent cleaner.

Make cuts true, smooth, and free from burrs or ragged edges. Fillet drill all re-entrant cuts before cutting. Do not flame cut. Weld as specified in Section 1105.03(m).

1023.4MEASUREMENT AND PAYMENT—Linear Foot

Measured from center to center of end posts. The Department will not deduct gaps at lighting pole foundations.

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