100 Parkway Forest Drive, Toronto, ON

Project Profile

2007 Parking Garage Suspended Ramp Replacement and Repairs

Project Date: October 2007–Mid December 2007

Project Location: 100 Parkway Forest Drive, Toronto, Ontario

Project Owner: El-Ad Group Canada Inc. c/o Metcap Living Inc

Project Consultants:
Halsall Associates Limited
Mr.Gavin Lobo, P. Eng.
2300 Yonge Street, Suite 2300, PO Box 2385
Toronto, Ontario M4P 1E4
Tel. 416-487-5256
Fax 416-487-9766

Project Description

2007 Parking Garage Suspended Ramp Replacement and Repairs

In October 2007 Albatech Building Restoration Inc. started 100 Parkway Forest Drive Parking Garage Ramp Rehabilitation Program.

The underground parking structure at 100 Parkway Forest Drive is a one level garage with one on grade parking level. The structural system of this garage is cast-in-place reinforced concrete with 240 mm thick reinforced roof deck slab supported by rectangular columns and foundation walls.  

Due to the extensive progressive deterioration in various areas of the suspended portion of parking garage excess ramp slab located above the mechanical room (including presence of exposed and rusted metal reinforcement) and failure of existing waterproofing system on the surface of suspended portion of garage excess ramp slab immediate repairs were required.

This rehabilitation program started with the mobilization and set up of the site and involved:

• Removal of garage excess ramp concrete topping (approximately 1,400 square feet), hot-rubberized waterproofing membrane, snow melting system, existing concrete nosing & trench frame.
• Localized removal of asphalt, overburden and waterproofing materials at the top of suspended slab adjacent to the ramp.
• Removal of existing slab-on-grade and drainage piping leading from the trench drain to the catch basin. Removal of the catch basin concrete nosing & frame.
• Total removal of existing suspended portion of garage entrance slab including sprinkler and electrical services and installation and maintenance of a temporary barrier above the mechanical equipment in the pump room beneath the ramp. Removal of pump room concrete block wall and access door.
• Installation of new suspended ramp concrete slab (approximately 550 square feet).
• Installation of new concrete nosing & hot-dipped galvanized heavy duty trench frame and steel grates at the bottom of the ramp.
• Installation of new slab-on-grade and drainage piping leading from the trench drain to the catch basin. Installation of new catch basin concrete nosing & steel armory frame and grates.
• Installation of a new hot rubberized waterproofing membrane, insulation and new hydronic heating cable system.
• Installation of new 100 mm thick ramp concrete topping complete with herring bone drainage pattern.
• Installation of new asphalt pavement and overburden materials at the top of suspended slab adjacent to the ramp.
• Localized vertical concrete surface repairs to the ramp walls.
• Installation of pump room concrete block wall and access door.
• Painting of the underside of the entrance ramp slab and exterior walls of the pump room wall.