Indi Smart, pictured above, has beaten a field of more than 80 students to take out the 'Name the Crane' competition, choosing her 18-year-old brother Henry as the inspiration for her winning entry.

Henry is a current patient at the Women's and Children's Hospital, receiving care in the Michael Rice Centre for Haematology and Oncology.

The competition, which was run by Hospital School SA, tasked students with finding meaningful names for two huge construction tower cranes, which are being used to help build the hospital's multi-storey car park.

Indi's second submission was Mariah, which is a combination of the names of her friends and teachers from the Hospital School, as well as her own name.

Women's and Children's Health Network Chief Executive Officer Rebecca Graham said Indi's family understood first-hand how important the new hospital was to the women and children of South Australia.

"We want to involve our staff, children and families in the build of this hospital at every opportunity and we stand here alongside some remarkably brave, resilient, and creative voices – it is people like this that will ensure we build the best hospital for generations to come," she said.

The two cranes, which stand at 42m and 51m, come to the site as two construction milestones are completed.

The first concrete pour for the hospital’s car park took place in mid-February. Work has also advanced on the main hospital site, with the final building being demolished at the former SAPOL Thebarton Police Barracks location within the past fortnight.

The new Women’s and Children’s Hospital project will employ around 2000 workers during peak construction. Throughout January, 97 per cent of the workforce building the new hospital was South Australian.

The new hospital will have more beds, theatres, and greater emergency capacity, as well as the ability to expand in the future. It will be bigger than the current building, providing 414 overnight beds – 56 more than the existing hospital, as well as an onsite helipad.

It will also feature a four-bed integrated Intensive Care Unit for women, enabling women requiring high-level care to remain onsite, rather than being transported to the adjacent Royal Adelaide Hospital.