601 – 607 Milner Avenue

Toronto, Ontario

Milner Avenue

CLIENT NAME

April 2022 – February 2023

PROJECT DATE

Commercial / Residential

PROJECT CATEGORY

Abatement, Asset Recovery, Demolition, Recycling

PROJECT SERVICES

The project

Connected to the office by means of a single-storey walkway, the warehouse, on the other hand, was a one (1) to two (2) storey structure with an overall footprint of approximately 256,700 ft2 that consisted of reinforced concrete foundations and grade slabs. The warehouse was built using precast beam and column framing, which supported precast double-T beams that made up the second floor as well as the roof. The exterior walls were likewise clad using precast wall panels.

The decommissioning of the buildings required the abatement of asbestos-containing materials that included pipe fittings, drywall joint compound along with Transite and vinyl floor tiles. Other hazardous materials, such as mercury-containing fluorescent light tubes, were removed in preparation for the demolition work.

The project involved the decommissioning and complete demolition of a large warehouse along with an adjoining office building that were located adjacent to a major 16-lane highway in Toronto, Ontario. The office building – having a footprint of 14,400 ft2 – was a two (2) storey structure with a single below-grade level. It consisted of reinforced concrete walls and foundations supporting a steel-framed structure with the exterior walls clad using precast wall panels.

Using small equipment, such as skid-steer loaders and mini-excavators, the selective demolition and removal of the interior architectural finishes along with mechanical and electrical equipment was undertaken prior to bulk demolition occurring.

The structures were subsequently demolished mechanically, including the footings and foundations, in accordance with engineered guidelines using large excavators equipped with shear, pulverizer, grapple, bucket, and hammer attachments. The foundation demolition included the removal of the associated caissons to 12 ft. below grade.

The waste materials were shipped off-site to licensed recycling and disposal facilities except for the concrete, which was prepared on-site using a company-owned crusher that was mobilized to process it to create a reusable fill material with a size of ± 2 inches. A portion of this material was placed in the below-grade voids to level the site and compacted to 98% standard proctor maximum dry density (SPMDD), while the balance was stockpiled for future reuse by the owner.