Patent ID: 7201538

Claim:
A drain structure panel for a subsurface drainage assembly, comprising: a plurality of spaced apart tubular support members arranged to define a unit having a plurality of side edges, the tubular support members having a first end, a second end, and a sidewall extending therebetween; at least one strut extending from each support member to another support member to latterly support the tubular support; and a plurality of complimentary sets of male and female fasteners extending from the side edges to permit the male fasteners to be connected to the female fasteners of an adjacent drain structure panel, wherein each of the female fasteners has a first end, a second end opposite the first end, a first side, and a second side opposite the first side, the first end, the first side, and the second side being closed and defining a socket, the second end being open to permit one of the male fasteners of another drain structure panel to be laterally inserted into the socket of the female fastener.