Patent ID: 6227763
Filing Date: 2001-05-08
Classification: E01C,E03F

Abstract:
A waterway for collecting and draining surface water comprising:a sheet of material having an upper face, a pair of side edges and a pair of end edges;at least one elongate skirt on the sheet of material, said skirt extending substantially between the end edges and adjacent to at least one of said side edges;a channel on the sheet of material which also extends substantially between the end edges and substantially parallel to said side edges, said channel collecting and draining the water; anda pair of ribs spaced from each other and extending upwardly from said upper face, said ribs also extending substantially between said end edges and between said skirt and said channel and defining said channel, said ribs comprising a pair of walls which are spaced from each other, which extend upwardly from said upper face, and which are joined to each other at their upper ends opposite said upper face, and wherein each of said ribs includes at least one juncture line in said walls wherein said walls and/or portions of said walls extend in angular relationship to each other or to said upper face, whereby said walls may flex and distort when loaded.