NM CID GF-2 Practice Questions - New Mexico CID GF-2 Bridges Contractor Examination Exam

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NMDOT Section 210.3.2 requires major-structure backfill to be placed in uncompacted layers no thicker than, and compacted to, which values?

8 inches; 95 percent of maximum density near optimum moisture (AASHTO T 180) 12 inches; 90 percent of standard Proctor (AASHTO T 99) 16 inches; 100 percent of T 180 at 4 percent below optimum 24 inches; density waived if a vibratory plate is used once

Correct Answer:

8 inches; 95 percent of maximum density near optimum moisture (AASHTO T 180)

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