1022STEEL BRIDGE HAND RAILING

1022.1DESCRIPTION—This work is construction of a steel bridge hand railing.

1022.2MATERIAL—

• Pipe for the Rails. ASTM A53, Type F, Schedule 40, certified as specified in Section 106.03(b)3.

• Plates. AASHTO M 270 (ASTM A709), Grade 36. Certify as specified in Section 106.03(b)3.

• Welding Material. Section 1105.02(t)

when tested through a 3/4-inch round hole. Toggle bolts may be cadmium-plated to meet 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

1022.3CONSTRUCTION—Construct as shown on the Standard Drawings and as follows:

Before erection, coat the surface of posts in contact with concrete or masonry, using caulking compound. After erection and alignment, use caulking compound to seal openings between metal surfaces and concrete. After the concreting and other operations have been completed, clean the railing. Use an acceptable solvent cleaner to remove accumulations of oil, grease, dirt, and foreign materials.

with the rails parallel to grade and with the posts normal to grade. Place joints as indicated. Make cuts true, smooth, and free from burrs or ragged edges. Fillet drill all re-entrant cuts before cutting.

1022.4MEASUREMENT 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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