Patent ID: 8266842

Claim:
A stadium seating construction system, comprising: a tiered stadium seating support understructure; a plurality of tiered concrete treads mounted to the stadium seating support understructure, at least one of said treads having a concrete body portion, a non-concrete front embed embedded within a front end of the concrete body portion, and a non-concrete rear embed embedded within a rear end of the concrete body portion, said front embed having a first connection device, said rear embed having an upwardly extending portion, said upwardly extending portion extending upwardly beyond the concrete body portion; and a plurality of tiered risers, at least one of said risers having an upper portion and a lower portion, the upper portion comprising a second connection device; wherein the first connection device of at least one of the plurality of treads is adapted to interlock with the second connection device of a lower adjacent one of said plurality of risers; and wherein at least one of the risers is arranged such that a lower portion of the riser overlaps with a forward side of the upwardly extending portion of the rear embed of a lower adjacent tread.