Keystone Retaining Wall Systems, Inc.

Joseph M Friederichs

Craig D Moritz

A wall block having a block body having opposed front and back faces, opposed first and second side walls, and opposed and substantially parallel top and bottom faces, the top face having a receiving channel, and the receiving channel opening onto one or more pin holes. The wall block can be used in a retaining wall made of (i) a plurality of blocks including at least one lower course and at least one upper course, at least one block comprising a block body having opposed front and back faces, opposed first and second side walls, and opposed and substantially parallel top and bottom faces, the top face having a receiving channel, and the receiving channel opening onto one or more pin holes; (ii) a soil retaining material; and (iii) a channel bar.

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Lakeville, MN, United States of America

Joseph M Friederichs