earthen (select) materials

Earthen materials (other than those defined for mass earthworks) that are procured or imported from off site for a particular purpose. Earthen (select) materials may include mined or processed materials, such as limerock, cement treated base, crushed gravel, or extraordinarily high-bearing capacity soils acquired from off site due to the contribution that they can make specifically toward building the stabilized subgrades associated with pavements, or other area-based site improvements.