Definition

Noun: A borrow pit is an excavation or hole dug in the ground specifically to obtain soil, gravel, or other earthy material (called "borrow") for use as fill material at a different location, typically for construction projects like building embankments, roads, or foundations.

Usage

This term is used primarily in civil engineering, construction, and earthworks contexts. It describes the source site from which material is taken. - The material removed is not "borrowed" in the sense of being returned; the term "borrow" is a technical term for excavated earth used as fill. - The pit itself is often left after the material is extracted.

Examples

• Noun:
  • The highway construction required a borrow pit to provide clay for the roadbed.
  • After taking the needed gravel, the company was responsible for reclaiming the borrow pit.
  • The environmental impact assessment studied the proposed location for the borrow pit.

Advanced Usage

• "to site a borrow pit": to choose the location for such an excavation.
  • Engineers must carefully site a borrow pit to minimize environmental disruption and transportation costs.
• The concept is often contrasted with a "quarry" (for stone) or a "mine" (for minerals), as a borrow pit is specifically for unconsolidated earthen fill material.

Variants and Related Words

• Borrow (n): The earthy material itself that is excavated from a borrow pit.
  • The contract specified the type of borrow required for the dam's core.
• Fill (n): The placed and compacted material for which borrow is used.
• Cut and fill: A common earthmoving process where material from a "cut" (excavation) is used as "fill" nearby; a borrow pit is an external source of fill.

Synonyms

• Excavation site (general)
• Earth borrow area (more technical)
• Fill borrow source

Related Terms (Not Phrasal Verbs)

• Stockpile: A pile of borrow material, often placed near a construction site after being transported from the borrow pit.
• Reclamation: The process of restoring a borrow pit area after excavation is complete.

Noun

1. a pit created to provide earth that can be used as fill at another site