Ontario and Quebec infrastructure work leads the country in activity, says Procore statistics, while Alberta and British Columbia recovery is slowed by changes in energy-sector economics.

The serpentine approaches of the Gordie Howe Bridge are necessary because of the right-of-way available to the P3 project's designers and the ground, weakened by previous salt mining, has taken extensive remediation to ready it for not one but four projects counting the ports of entry and the new Michigan interchange.

With Q2 loss now $1.6B as of Aug. 1, Canada firm pulls out of four large shortlisted bids; CEO splits design, construction to new units, terms industry model "broken."