Grade level enclosures for underground utility connections

1. A grade level box for underground utilities connections comprising:

• a substantially vertical wall structure extending continuously around an open interior region within the wall structure, the wall structure made of a molded polymeric material,a vertically and horizontally extending supporting grid structure made of a molded polymeric material and integrally molded to an outer face of the vertical wall structure, the grid structure comprising horizontally spaced apart vertical ribs extending continuously from a lower to an upper portion of the vertical wall structure, and vertically spaced apart horizontal ribs extending continuously around the vertical wall structure, including a concrete-containing ring adapted to be supported on an upper edge of the vertical wall structure of the grade level box, the ring having an interior opening adapted for alignment with the open interior region within the grade level box,in which an inside section of the ring is profiled to support a cover which optionally can be made from a concrete-containing material.