Pronunciation: [dɪtˈɛnʃən bˈe͡ɪsən] (IPA) 
The word "detention basin" is spelled as /dɪˈtɛnʃən ˈbeɪsən/. The first syllable "di" is pronounced as "duh" with a short "i" sound, followed by "ten" with a short "e" sound, and "tion" with a "shun" sound. The second part "basin" is pronounced as "bay-sin" with a long "a" sound. This spelling reflects the intended meaning: a basin that is used to temporarily hold stormwater runoff to control and slow down its release.
A detention basin refers to a purposefully designed structure that is employed in stormwater management systems. It is a man-made basin or reservoir that temporarily stores excess water during heavy rainfall or periods of excess water runoff. The main objective of a detention basin is to prevent flooding by slowing down and regulating the flow of stormwater into a body of water, such as a river, lake, or ocean.
The design of a detention basin involves engineering calculations to determine its size, volume, and location. Typically, it is constructed in areas where there is abundant rainfall, significant urban development, or a high risk of flooding. The basin is created by excavating a depression or a trench in the ground, which is then lined with impermeable materials to prevent water from seeping into the soil.
When heavy rainfall occurs, the detention basin collects the excess stormwater runoff, allowing it to gradually drain over time. This controlled release of water prevents sudden surges and minimizes the risk of flooding downstream. Additionally, the reservoir provides an opportunity for sedimentation, where suspended particles settle at the bottom of the basin, improving water quality.
Detention basins are an important component of sustainable stormwater management systems as they help to reduce the strain on drainage infrastructure, protect property and infrastructure from flooding, and improve overall water quality in receiving bodies of water.
The word "detention" in the context of a detention basin comes from the Latin word "detentio", which means "a holding back or restraining". The verb "detinere" means "to hold off or detain".
A "basin" is an area or container that holds water or other substances. It comes from the Old French word "bacin" or "bacine", which originated from the Late Latin word "baccinum", meaning "a vessel or dish".
When combined, "detention basin" refers to a basin or reservoir designed to temporarily hold and store excess water, thereby detaining or holding it back to prevent flooding or other adverse effects.
