Wheels are in motion to begin major upgrades to one of Christchurch's busiest roads

The Transport Agency is putting 150-million-dollars towards improving Brougham Street - State Highway 76.

The upgrades will include T2 lanes - for vehicles carrying more than one person, as well as a new pedestrian and cycle bridge over the road.

Brougham Street carries more than 45-thousand vehicles a day, and is also the main freight route to Lyttelton port.