The recently completed 5,000-seat Niagara Falls Entertainment Centre adjacent to Fallsview Casino in Niagara Falls, Ont. presented a number of unusual challenges to build.

The structure required the construction of a large concrete transfer slab to carry the load of the 240,000-square-foot concrete and steel building supported above an existing underground parking garage.“It was probably one of the most difficult concrete slabs I’ve seen, with a series of intersecting beams, none of which could bear on the parking garage,” says Curt Sinclair, a senior site superintendent with Bird Design Build Construction Inc.Bird is part of the Niagara Falls Entertainment Partners consortium selected by OLG for the development capital and maintenance costs associated with the new theatre.

The intersecting beams each have different soffit heights, some which are only 75 millimetres above the existing parking garage slab, says Adam Dench, senior project manager with Reimar Forming and Construction of Hamilton, Ont.Not only did this work require atypical forming procedures but the sequence of construction needed to be meticulously planned to ensure that access was  maintained for both forming and stripping activities,” says Dench.