Annex 3C: Guidelines for Concrete Pavement 478 OTHER CONSIDERATIONS FOR CONCERETE PAVEMENT 1. Typical Section for Concrete Pavement (DILG-PRMF Provincial Road Rehabilitation Project) *illustration on the following page 2. Thickness of sub-base required for concrete pavement (DPWH Design Guidelines, Criteria, and Standards) Note: If subgrade if free draining and has a CBR over 15%, then no subbase is required