Definition

1. Noun:
   • A storage site (such as a small reservoir) that delays the flow of water downstream: A detention basin is a constructed or natural depression designed to temporarily hold stormwater runoff. Its primary purpose is to control the rate at which water is released into a downstream watercourse, helping to mitigate flooding and reduce erosion.

Usage Examples

• Noun:
  • The new housing development includes a large detention basin to manage stormwater.
  • After the heavy rain, the detention basin was full, but it slowly released the water over the next 24 hours.
  • Engineers designed the detention basin to hold excess runoff during peak flow periods.

Advanced Usage

• "Dry detention basin": A basin that is typically dry except during and immediately after a rainfall event.
  • The park doubles as a dry detention basin during storms.
• "Extended detention basin": A basin designed to detain water for a longer period, often to improve water quality by allowing sediments to settle.
  • The extended detention basin is part of the city's strategy for cleaner waterways.

Variants and Related Words

• Detention pond: A synonym often used interchangeably with detention basin.
  • The detention pond successfully prevented street flooding.
• Retention basin: A related but distinct structure designed to hold a permanent pool of water in addition to detaining stormwater.
  • Unlike a detention basin, the retention basin always contains water.

Synonyms

• Stormwater detention facility: A more formal term.
• Flood control basin: Emphasizes the primary function of flood mitigation.

Related Phrases

• "To detain water": The action performed by a detention basin.
  • The structure's function is to detain water temporarily.
• "Peak flow control": A key purpose of detention basins.
  • The basin provides effective peak flow control for the watershed.

Related Concepts

• Stormwater management: The broader field of practices, including the use of detention basins, to handle runoff.
• Hydrology: The scientific study of the movement, distribution, and management of water on Earth, which includes the principles behind detention basin design.

Noun

1. a storage site (such as a small reservoir) that delays the flow of water downstream