How do you determine if a final subgrade is ready for pavement layer placement?

How do you determine if a final subgrade is ready for pavement layer placement?

• A. Verify surface smoothness and elevations per design, with no regard to density.
• B. Confirm target density and moisture, verify surface smoothness and elevations per design, and perform proof rolling if required.
• C. Only check color of the surface.
• D. Rely on the design drawings without field checks.

Answer: (B)