Practice question

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

Answer: B — AASHTO M 180, Type 2, Class A

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