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RICHMOND — All five lanes of the new Steveston interchange at Highway 99 are now open.

The new interchange has three westbound lanes and two eastbound lanes in service, adding capacity to the crossing over Highway 99, and improving the flow of east-west traffic, explains a release.

The new overpass will also improve travel times to and from communities south of the Fraser River by reducing backups in the northbound off-ramp lanes on Highway 99. Once the new tunnel is open, southbound backlogs will also see major reductions.

While this marks the end of major construction, work will continue through spring 2026 to complete landscaping, on- and off-ramp paving and other roadwork activities.

The $87.5-million project is a major piece of the Highway 99 tunnel project and was delivered on time and on budget, the release adds.

Other improvements to Highway 99 have been completed, including bus-on-shoulder lane extensions south of the tunnel, a transit connection from Bridgeport Road to Highway 99 southbound and cycling improvements at Highway 17A.