601 – 607
Milner Avenue

Project Services

Abatement
Asset Recovery
Demolition
Recycling

Decommissioning and Demolition of 601 – 607 Milner Avenue

Ensuring Safety, Efficiency, and Environmental Responsibility

Project Overview
Delsan-AIM successfully managed the decommissioning and complete demolition of a large warehouse and an adjoining office building located near a major 16-lane highway in Toronto, Ontario. The office building, with a footprint of 14,400 ft², was a two-storey structure with a single below-grade level. It consisted of reinforced concrete walls and foundations, supporting a steel-framed structure with precast concrete wall panels for exterior cladding.

The warehouse, connected to the office building via a single-storey walkway, was a one- to two-storey structure with a footprint of approximately 256,700 ft². The warehouse had reinforced concrete foundations and grade slabs, with precast beam and column framing supporting precast double-T beams that made up the second floor and roof. The exterior walls were also clad in precast concrete panels.

Decommissioning and Hazardous Materials Removal
The decommissioning process involved the removal and safe disposal of asbestos-containing materials, including pipe fittings, drywall joint compound, and Transite and vinyl floor tiles. Additionally, hazardous materials such as mercury-containing fluorescent light tubes were identified and removed prior to demolition.

Selective Demolition Operations
The initial phase of demolition involved the selective removal of interior architectural finishes, mechanical systems, and electrical equipment. This was carried out using small equipment such as skid-steer loaders and mini-excavators to ensure a controlled and efficient removal process.

Mechanical Demolition
The primary demolition of the structures was performed using large excavators equipped with specialized attachments including shear, pulverizer, grapple, bucket, and hammer. These tools were used to dismantle the buildings, including the footings and foundations, in strict accordance with engineered guidelines. The foundation demolition included the removal of the associated caissons, which were excavated to a depth of 12 feet below grade.

Waste Management and Recycling
All waste materials were carefully transported to licensed recycling and disposal facilities, except for the concrete. The concrete was processed on-site using a company-owned crusher, which was mobilized to reduce the material to a reusable fill size of approximately ± 2 inches. A portion of this recycled material was used to fill below-grade voids and was compacted to 98% Standard Proctor Maximum Dry Density (SPMDD), while the remaining material was stockpiled for future reuse by the owner.

Project Highlights
This project demonstrates Delsan-AIM’s expertise in decommissioning and demolition, ensuring that operations were carried out with minimal disruption to surrounding areas. Through efficient planning and the use of specialized equipment, the project was completed safely, on time, and in compliance with all environmental and safety regulations, leaving a clean and level site for future use.