705— Bridge Railing

700-88 Section 705 — Bridge Railing

705.1 Description 1 Furnish materials and construct rails on structures, including furnishing and placing mortar or concrete, anchor bolts, reinforcing steel dowels, or other devices used to attach the rails to the structure. 2 Unless otherwise stated, bridge railing includes that portion of the structure erected on and above the bridge deck, curb, or sidewalk, or above the top of retaining walls for the protection of traffic and pedestrians. 705.2 Materials 705.2.1 Cast -in-Place Concrete Railing Wall and Barrier Parapet 1 Use Class 4000 concrete or greater. Use concrete and procedures conforming to Sections 701 and 702. Provide reinforcing steel conforming to Section 703. 705.2.2 Precast Bridge Barrier Parapet 1 Use Class 5000 concrete or greater for precast bridge parapet. Use concrete and procedures conforming to Sections 701 and 702. Provide reinforcing steel conforming to Section 703. Galvanize all installation hardware consisting of bolts, nuts, washers, inserts, and rods according to AASHTO M 111 or AASHTO M 232 as applicable. 705.2.3 Galvanized Steel Railing and Steel Handrail 705.2.3.1 Post and Rail 1 Fabricate steel post assembly to the same general appearances as the railing shown in the Plans. Submit Shop Plans according to Subsection 105.2 and Section 725, and show complete details of all parts of the post and rail. E nsure that all steel rail and post components conform to AASHTO M 270, Grade 36 or