Sidewalk Leveling and Trip Hazard Mitigation at Condominium Complex

The Challenge

Sidewalk settlement created trip hazards for residents.

Throughout a condominium complex in Guelph, Ontario, several walkways had settled along control joints and curbs, creating uneven surfaces and trip hazards for pedestrians. The issue not only posed a safety concern for residents and visitors but also opened up the potential for litigation by injured parties. This problem required a fast repair solution that would not disrupt other contractors working at the job site and also eliminate the risk of injuries and lawsuits.

Key Facts

The Solution

Polyurethane injection sidewalk leveling.

To restore the concrete slabs that had settled from soil washout, Groundworks was brought in to restore safe walking conditions quickly and effectively. Using a fast-reacting polyurethane, technicians drilled small holes and injected beneath the sunken walkways to realign the concrete surfaces with precision. The injection process delivered the polyurethane in a liquid state, allowing it to reestablish soil connectivity and gently apply even lift to the slab. This careful lifting brought the slabs back to grade to eliminate trip hazards, while ensuring the joints matched seamlessly with adjacent panels.

The Impact

450 feet of walkway stabilized.

During this project, 450 linear feet of walkway was leveled and stabilized. Additionally, the work was completed in a single day. Full use of the walkways was restored immediately after injection, minimizing downtime for residents and eliminating the trip hazards without the need for removal or replacement of the entire walkway.