BusinessAugust 23, 2026

subgrades

SUB-graydz

Definition

The prepared natural earth or soil layer that serves as the foundation upon which the pavement structure of a road is built.

Etymology

The word is a 19th-century construction of the prefix 'sub-' (under) and 'grade' (a slope or level surface), referring to the layer below the finished surface level.

In the news

The article mentions stabilizing subgrades as a primary task for construction crews, which is a foundational step in ensuring the durability of the 200 kilometers of new and resumed road projects.

Government targets 15 road projects in Machakos County for KSh10 billion

Read the full article ↗

Mjengo Hub

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