Subbase
Defined in the standard specifications of 4 state transportation agencies. Each definition below is the agency’s own text, with the section it comes from — they do not all say the same thing, and on a contract the difference is the point.
Definitions are quoted from state-authored public specification books. This page carries no I-Code-derived terms.
A layer or layers of specified or selected material or designed thickness placed on a subgrade to support a base or rigid pavement. Subcontractor. An individual, partnership, firm, corporation or any acceptable combination thereof who has or have, with the written approval of the Department, contracted with the Contractor to execute and perform in his stead any part of the contract, as permitted by Article 108.01 of these Specifications.
Section 101 — DEFINITION OF TERMS →Layer of specified material placed on the subgrade as part of the pavement structure.
Section 101 — Terms, Format, and Definitions →Layers of specified material thickness placed on a subgrade to support a base course.
Section 101 — DEFINITIONS AND TERMS →The layer or layers of specified Material thickness placed on a Subgrade t o support Surface Courses.
Section 101 — Abbreviations, Symbols, T erms, and Definitions →