The scale model, made from laser-cut aluminium and timber, will comprise 40 moving segments which will roll and unroll dozens of times during the procession on 14 November.
It is a development of Heatherwick Studio’s Rolling Bridge at London’s Paddington Basin.
The project is being led by community engagement organisation the Building Exploratory, and involves pupils from Sebright Primary School in Hackney. It has been commissioned by the City Bridge Trust.
Thomas Heatherwick, founder of Heatherwick Studio, says, ‘The City Bridge Trust and the Building Exploratory have introduced us to a new generation of potential bridge builders and engineers in the guise of pupils from Sebright Primary School.
‘We had an incredible response from the children, and it’s been exciting to see this large mechanical bridge taking shape in our workshop.’