Abstract: The present invention relates to a corrugated foundation drain. The drain is comprised of a plurality of segments attached in an end to end fashion. Each segment has a first end and a second end, wherein the second end of one segment can be attached to the first end of an adjacent segment. The drain is corrugated. The drain has sections of corrugations separated by spacers for longitudinal stability. A web is provided within the interior of the drain segments. The web can be vertically centered. In the preferred embodiment, the web can be removed from the first end to provide clearance for receipt of the second end. The second end further can have cleats that interface with the corrugations in the first end.