Corrugated Steel Pipe is available with perforations for collection and dissemination of water underground and is an effective means of stormwater management. Subsurface, or groundwater control, is the most common use for perforated pipe. Fully perforated pipe is ideally suited for retention of stormwater, permitting slow infiltration, or recharge, into the trench walls. Corrugated steel pipe can also be perforated over a portion of the pipe perimeter or with strips of perforations, typically within the lower half to third of the pipe.
Underground disposal of stormwater runoff in urban development design has the potential for saving millions of dollars in taxpayer money. Recharge design makes the concept of zero increase in runoff possible, thus avoiding overloading trunk storm drains, and/or streams and rivers. The cost of reconstructing existing drains or channel improvements will usually prove to be far greater than recharge design.
Another use of perforated pipe is for agricultural ventilation systems for crops such as corn, potato, onion, sugar beets and grains stockpiles. In these cases, perforated pipe is place under a stockpile. Air pumped through the pipe ventilates the stockpile, keeping the stored product fresh for a longer period of time. A wide variety of perforation sizes and shapes are available offering design flexibility for a range of applications in water and air management.
It is recommended that you check with your local fabricator before specifying a particular perforation pattern.