A storm sewer intake such as the one in this picture is a common site on almost all streets. Rainfall runoff, and sometimes small kids' toys left out in the rain, are collected by these drains and the water is delivered via the street curb or drainage ditch alongside the street to the storm-sewer drain to pipes that help to move runoff to nearby creeks and streams. ; storm sewers help to ...

Runoff definition is - a final race, contest, or election to decide an earlier one that has not resulted in a decision in favor of any one competitor. How to use runoff in a sentence.

Surface runoff (also known as overland flow) is the flow of water that occurs when excess stormwater, meltwater, or other sources flow over the Earth's surface.This can occur when the soil is saturated to full capacity, and rain arrives more quickly than soil can absorb it. Surface runoff often occurs because impervious areas (such as roofs and pavement) do not allow water to soak into the ground.

Runoff, in hydrology, quantity of water discharged in surface streams. Runoff includes not only the waters that travel over the land surface and through channels to reach a stream but also interflow, the water that infiltrates the soil surface and travels by means of gravity toward a stream

run·off (rŭn′ôf′, -ŏf′) n. 1. a. Water, such as rainfall, and any sediments or other substances carried with it, that is not absorbed by the soil but instead flows away over the ground. b. The overflow of fluid from a container. 2. An extra election or competition held to decide a winner following an earlier, inconclusive election or ...

Runoff definition, something that drains or flows off, as rain that flows off from the land in streams. See more.

Runoff, run-off or RUNOFF may refer to: . RUNOFF, the first computer text-formatting program; Runoff or run-off, another name for bleed, printing that lies beyond the edges to which a printed sheet is trimmed; Runoff or run-off, a stock market term; Runoff curve number, an empirical parameter used in hydrology; Runoff model (reservoir), a mathematical model describing the relationship between ...

Runoff occurs when there is more water than land can absorb.The excess liquid flows across the surface of the land and into nearby creeks, streams, or ponds. Runoff can come from both natural processes and human activity. The most familiar type of natural runoff is snowmelt.Mountains that cannot absorb water from heavy snowfalls produce runoff that turns into streams, rivers, and lakes.

Just as runoff can pick up, transport, and drop off leaves and pebbles, it can do the same with pollutants. A prime example of pollution caused by runoff is the dead zone at the mouth of the ...