A sediment trap is a temporary device installed on a construction site to capture eroded or disturbed soil that is washed off during rain storms, and protect the water quality of a nearby stream, river, lake, or bay. The trap is basically an embankment built along a waterway or low-lying area on the site. They are typically installed at the perimeter of a site and above storm drain inlets, to keep sediment from entering the drainage system. Sediment traps are commonly used on small construction sites, where a sediment basin is not practical. Sediment basins are typically used on construction sites of 5 acres (20,000 m2) or more, where there is sufficient room.
Sediment traps are installed before land disturbance (earth moving, grading) begins on a construction site. The traps are often used in conjunction with erosion controls and other sediment control practices.
Read more about this topic: Sediment Basin
Famous quotes containing the word trap:
“We are not very much to blame for our bad marriages. We live amid hallucinations; and this especial trap is laid to trip our feet with, and all are tripped up first and last. But the mighty Mother who had been so sly with us, as if she felt that she owed us some indemnity, insinuates into the Pandora-box of marriage some deep and serious benefits, and some great joys.”
—Ralph Waldo Emerson (1803–1882)