Specifications include, but are not limited to: Steel beam guardrail accessories and components shall meet the requirements of Section 814.02 and shall comply with the AASHTO M-180 Class A Type 2, AASHTO M 232, and Standard Drawings RBR-001-012 and RBR-005-011, Guardrail shall be furnished by the Vendor or by the Department. Guardrail posts shall comply with Section 814.04 and Standard Drawings RBR-001-12, RBR-015-05 and RBR-016-05, except as provided herein. Steel post shall be wide flange shape W6 x 8.5 or W6 x 9 conforming to Section 814.04.01, AASHTO M 183, and AASHTO M 111 or at vendors option a W6 x 8.5 structural shape manufactured by the electric-resistance welding process for coils, meeting the requirements of ASTM A 769 Grade 36 or Grade 40. Nominal dimensions and manufacturing tolerances being the same as for a W6 x 8.5 rolled section, galvanized in accordance with AASHTO M 111. All welding, drilling, or punching shall be completed before galvanizing. Steel Posts with anchor plates shall be 24 ½” long (including the plate thickness) or as directed by Engineer to meet site conditions. Unless used for Corten Guardrail, Timber Guardrail Posts shall be square sawed to nominal dimensions 6” x 8” conforming to Section 814.04.02, WPA C14 and AWPA C14. Timber Guardrail Posts for Corten guardrail shall be round and conform to the Standard Drawings and Section 814.04.02 of the Standard Specifications. Offset blocks shall be wood conforming to Section 814.05 and 814.04.01 or 814.04.02 as applicable or Composite plastic conforming to Section 814.05.02.
