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Base Courses
Includes bound and unbound base and subbase courses that separate flexible, rigid, or unit paving courses from the underlying foundation or subgrade. bound and unbound base and subbase courses that separate rail track supports from the underlying foundation or subgrade.

32 11 00 Base Courses 2 Products
32 11 13 Subgrade Modifications
32 11 16 Subbase Courses
32 11 23 Aggregate Base Courses
32 11 26 Asphaltic Base Courses
32 11 29 Lime Treated Base Courses
32 11 33 Cement-Treated Base Courses
32 11 36 Concrete Base Courses 1 Product