Section 630.2 B. – Page 427 – Delete and replace with the following: B. Beam Guardrail: For all projects let prior to January 1, 2027 the following shall apply: Beam guardrail will conform to AASHTO M 180-18, Type I, or AASHTO M 180-23, Type I, unless the plans specify another type. For all projects let January 1, 2027 and after the following shall apply: Beam guardrail will conform to the most recent, at the time of the letting, version of AASHTO M 180, Type I, unless the plans specify another type. Section 630.2 C. – Page 427 – Delete and replace with the following: C. Bolts, Nuts, and Washers: For all projects let prior to January 1, 2027 the following shall apply: Bolts, nuts, and washers will be as specified in AASHTO M 180-18 or AASHTO M180-23. For all projects let January 1, 2027 and after the following shall apply: Bolts, nuts, and washers will be as specified in the most recent, at the time of the letting, version of AASHTO M 180.
