Modular block retaining wall system

A retaining wall comprising:

• a plurality of courses of superimposed wall blocks, each course including a plurality of laterally juxtaposed wall blocks each of which has a front face for forming a portion of an exterior surface of the retaining wall, a rear face, top and bottom surfaces, and opposed sidewalls extending between said top and bottom surfaces and said front and rear faces,
• said top surface of each wall block in at least one course including a pair of integral, transverse, upwardly extending projections spaced from said front face, and spaced from each other by an upwardly opening groove,
• said bottom surface of each wall block in said at least one course including a pair of transverse, downwardly opening grooves of different widths spaced from said front face, and spaced from each other by a downwardly extending projection,
• said projections and said grooves in said wall blocks in said at least one course cooperating with complementary elements in wall blocks in superior and inferior courses such that superimposed courses of wall blocks are selectively integrated in the formation of the retaining wall with said front faces in one of a vertically aligned and a vertically offset orientation.

A modular wall block system to be used for forming a retaining wall, said modular wall block system comprising:

• a plurality of wall blocks each having a front face for forming a portion of an exterior surface of the retaining wall, a rear face, top and bottom surfaces, and opposed sidewalls extending between said top and bottom surfaces and said front and rear faces,
• said top surface of each wall block including a pair of integral, transverse, upwardly extending projections spaced from said front face, and spaced from each other by an upwardly opening groove,
• said bottom surface of each wall block including a pair of transverse, downwardly opening grooves of different widths spaced from said front face, and spaced from each other by a downwardly extending projection,
• said upwardly extending projections and said upwardly opening groove in said top surfaces of selected wall blocks adapted to cooperate with said downwardly opening grooves and said downwardly extending projection in said bottom surfaces of other wall blocks such that superimposed courses of wall blocks may be selectively integrated in the formation of a retaining wall therefrom with said front faces in one of a vertically aligned and a vertically offset orientation, and
• a width of one of said downwardly opening grooves being at least as large as a combined width of said upwardly extending projections and said upwardly opening groove.

A retaining wall comprising:

• a plurality of courses of superimposed wall blocks, each course including a plurality of laterally juxtaposed wall blocks each of which has a front face for forming a portion of an exterior surface of the retaining wall, a rear face, top and bottom surfaces, and opposed sidewalls extending between said top and bottom surfaces and said front and rear faces,
• said top surface of each wall block in at least one course including a pair of integral, transverse, upwardly extending projections spaced from said front face, and spaced from each other by an upwardly opening groove,
• said bottom surface of each wall block in said at least one course including a pair of transverse, downwardly opening grooves of different widths spaced from said front face, and spaced from each other by a downwardly extending projection,
• said projections and said grooves in said wall blocks in said at least one course cooperating with complementary elements in wall blocks in superior and inferior courses such that superimposed courses of wall blocks are selectively integrated in the formation of the retaining wall with said front faces in one of a vertically aligned and a vertically offset orientation, and
• a width of one of said downwardly opening grooves being at least as large as a combined width of said upwardly extending projections and said upwardly opening groove.