NM CID GA-5 Practice Questions - New Mexico CID GA-5 Highway Signs And Guard Rails Examination Exam

Per NMDOT 2019 606.2.1.1.1, galvanized W-beam rail elements shall meet which AASHTO designation?

ASTM A 615 Grade 60 reinforcing bar AASHTO M 180, Type 2, Class A AASHTO M 111, Type 1, Class B only AASHTO M 36, Type I corrugated pipe

Correct Answer:

AASHTO M 180, Type 2, Class A

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