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Project E

January 2026City of Toronto

This 200 m stretch of collector road got a major rehabilitation rather than a resurfacing: the entire pavement structure, granular base included, along with State of Good Repair work on curbs, gutters, sidewalks, and driveways. The collector road sits in an industrial area and was last reconstructed roughly 40 years earlier, leaving it with extensive surface cracking and deterioration.

Survey work in MicroStation turned up deficient crossfalls as low as 0.0 to 0.2 percent and longitudinal grades too flat for positive drainage, the kind of underlying problem a simple resurfacing can’t fix. Because the scope was a full rehabilitation, the design could adjust the road’s longitudinal profile and elevations directly, regrading with cuts of up to about 55 mm at curb and gutter. Post-rehabilitation, longitudinal slopes now run 0.35 to 0.5 percent, with crossfalls between 1 and 4 percent. Designed January 2026 to February 2026.

Ground-level photo of the cracked, deteriorated asphalt before reconstruction2-Ground-level photo of the cracked, deteriorated asphalt before reconstruction3-Ground-level photo of the cracked, deteriorated asphalt before reconstructionGrading plan of a road cul-de-sac showing elevations and slope percentages.Survey crossfall drawing showing deficient percent-grade callouts along the project's centrelineGrading plan of an intersection showing elevations and slope percentages.1-Civil design software screenshot showing a road plan view and its corresponding profile.2-Civil design software screenshot showing a plan view of a cul-de-sac road layout.3-Civil design software screenshot showing a road profile with slope percentages.Grading plan of a road curve and cul-de-sac approach.Grading plan of a straight road segment with driveway aprons.Grading plan of another straight road segment with driveway aprons.