Storm Water Disposal
Infiltration galleries may be used to supplement a storm sewer, by directing storm runoff from non-road areas.
While the catchbasins under sewer grates work well on swift-flowing surfaces like asphalt and concrete, heavy storm water flow on grass lawns or other open areas will pool in low areas if there is no outlet. An infiltration gallery serves this purpose in two ways.
Primarily, upright plastic pipes capped with simple grates are placed every 5-8 metres along the low point of a slope, to handle heavy surface runoff. The pipes proceed straight down, about two metres, to a horizontal cross-pipe; this pipe is the secondary system.
The horizontal pipe is then perforated slightly (about 10% of its surface area) and surrounded by gravel. Initially, runoff will exit the pipe and infiltrate the gravel to the soil beyond, dissipating naturally. As flow increases, the water will eventually fill the pipe and need to be dissipated more quickly. Thus, a catchbasin is placed at the lowest point of the sloping ground, which is connected to the storm sewer system at large.
Such galleries are a relatively new development in urban planning, and are thus found in newer housing developments.
Read more about this topic: Infiltration Gallery
Famous quotes containing the words storm, water and/or disposal:
“Here’s neither bush nor shrub to bear off any weather at all. And another storm brewing, I hear it sing i’ the wind. Yond same black cloud, yond huge one, looks like a foul bombard that would shed his liquor. If it should thunder as it did before, I know not where to hide my head. Yond same cloud cannot choose but fall by pailfuls.”
—William Shakespeare (1564–1616)
“Rock of ages, cleft for me,
Let me hide myself in thee!
Let the water and the blood,
From thy riven side which flowed,
Be of sin the double cure;
Cleanse me from its guilt and pow’r.”
—Augustus Montague Toplady (1740–1778)
“Young people everywhere have been allowed to choose between love and a garbage disposal unit. Everywhere they have chosen the garbage disposal unit.”
—Guy Debord (b. 1931)