Patent ID: 6592301
Filing Date: 2003-07-15
Classification: E02D,E04C

Abstract:
A retaining wall block for constructing a multiple course retaining wall comprising:a substantially planar top surface; spaced apart front and back surfaces extending from the top surface; spaced apart side surfaces extending from the top surface and spanning from the front surface to the back surface; a bottom surface spaced apart from the top surface having a predetermined surface area and having a concave portion that is rearwardly displaced from the front surface of the block, the concave portion comprising a continuous area making up at least one-quarter of the bottom surface and creating a cavity between the bottom surface of the block and a top surface of a lower course of blocks when the block is placed on the top surface of the lower course of blocks, the cavity allowing dirt and other foreign matter to exist between successive courses of blocks without creating instability between the block and the lower course of blocks, and said body being of the same, uniform material composition throughout; and, a plurality of elongate grooves formed in the concave portion of the bottom surface, the elongate grooves being formed wholly in the bottom surface of the block.