SECTION 813 - RAILING
813.01 General. This work consists of constructing bridge railing of the type specified
in accordance with these specifications. Railing for bridges shall include all work constructed above the top of the bridge deck, curb, or sidewalk surface, as applicable.
813.02 Materials. All materials shall conform to the requirements of Division 700 or as
specified on the plans. Unless otherwise specified, concrete shall be Class "AA" meeting the requirements of Section 804.
813.03 Construction Requirements.
813.03.1 Line and Grade. Lines and grades of railing shall be in reasonably close
conformity to that shown on the plans and shall not follow an y unevenness in the superstructure. Unless otherwise specified or shown on the plans, the railing, posts, and curbs on bridges, whether on horizontal grade, superelevated, or not shall be vertical.
813.03.2 Concrete Railing.
813.03.2 1--General. In no case shall concrete raili ngs be placed until the centering or
falsework for the span has been released and the span is self-supporting.
813.03.2 2--Railings Cast-In-Place. The portion of the railing or parapet that is to be cast
in place shall be constructed in accordance with the requirements of Section 804. Special care shall be exercised to secure smooth and tight-fitting forms that can be rigidly held to line and grade and removed without injury to the concrete. Forms shall either be of single width boards or other approved material or shall be lined with suitable material that has the approval of the Engineer. Form joints in plane surfaces will not be permitted. All moldings, panel work, and bevel strips shall be constructed according to the detail plans with neatly mitered joints, and all corners in the finished wo rk shall be true, sharp, and clean-cut and shall be free from cracks, spall, or other defects. When railing is constructed by the slipform method, placement shall be as specified in Subsection 615.03.2.
813.03.2 3--Surface Finish. The surfaces of concrete railings shall conform to the
requirements of Section 804.
813.03.2 4--Expansion Joints. Expansion joints shall be so constructed as to permit
freedom of movement. After all other work is completed, all loose or thin shells of mortar likely to spall under movement shall be carefully removed from all expansion joints by means of a sharp chisel.
813.03.3 Metal Railing.
813.03.3 1--Construction. Fabrication and erection of ferrous metal shall be in
accordance with the requ irements of Section 810. In the case of welded railings, all exposed joints shall be finished by grinding or filling to give a neat appearance. Fabrication and erection of n on-ferrous material shall be in general conformity with applicable requirements of Section 810 and the specific requirements shown on the plans. Metal railings shall be carefully adjusted prior to fixing in place to ensure proper matching at abutting joints and correct alignment and camber throughout their length. Holes for field connections shall be drilled with the railing in place in the st ructure at the correct grade and alignment. Welding may be substituted for rivets in field connections with the approval of the Engineer. Where galvanized ferrous metal railing is designated by the plans, the components shall be hot dip galvanized after fabrication in accordance with the requirements of the plans.
813.03.3 2--Painting. Painting shall conform to the requirements of Sections 710 and 814.
813.03.4 Wood Railings. Wood railings will be constr ucted and paid for under the
provisions of Section 820.
813.04 Method of Measurement. Railing of the type specified will be measured by the
linear foot within the nominal measuring points of spans at bridge ends. When the contract includes rails of various heights, the approp riate pay item description listed below will contain the rail height
813.05 Basis of Payment. Railing of the type specified, measured as prescribed above,
will be paid for at the cont ract unit price per linear foot , which price shall be full compensation for completing the work. Payment will be made under: 813-A: Concrete Railing * - per linear foot 813-B: Concrete-Steel Railing - per linear foot 813-C: Concrete-Aluminum Railing - per linear foot 813-D: Concrete Median Barr ier Railing - per linear foot 813-E: Type Railing - per linear foot * Size may be indicated
Railing in other states
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