Construct base courses on prepared subgrades or subbases. Base courses consist of construction performed according to the requirements specified for the various types in the following sections. Comply with the lines, grades, thicknesses, and typical cross sections shown in the contract documents.


If a subbase or other prepared subgrade is not specifically required, prepare the subgrade as provided in Section 2109.


2201.  Portland Cement Concrete Base.

2203.  Hot Mix Asphalt Base.

2210.  Macadam Stone Base.

2212.  Base Cleaning and Repair.

2213.  Base Widening.

2214.  Pavement Scarification.

2216.  Cracking and Seating PCC Pavement.

2217.  Rubblizing Existing Portland Cement Concrete Pavement.