They are up to 80 metres high, have booms 40 metres long and can lift 70 tons of building materials in a single load.

Three giant tower cranes are set to be landmark features of the Bournemouth skyline as work progresses on new student residences and a multi-storey public car park in Madeira Road.

Steel frames for the new buildings have already gone up and when the work is complete it will have involved 7,000 tons of concrete, 1,500 tons of steel, 150,000 bricks, 45,000 concrete blocks and 25,000 plasterboard sheets.

Up to 100 construction workers will be on site on any given day during the build process. Three-quarters of the contractors and sub-contractors are from companies in the Bournemouth or Dorset areas.

The three blocks of accommodation will house 378 students at the Arts University Bournemouth (AUB).

The 382-space multi-storey car park is scheduled to open to the public in December this year with the AUB accommodation ready for students to move into at the start of the autumn term of 2014.

The project is being delivered by The Bournemouth Development Company, a regeneration partnership involving Bournemouth Borough Council. Building work is being managed by the Poole office of construction company Morgan Sindall.