Construction of the new permanent bridge started in January 2013 and will finish in September 2013.
Occasional road closures and temporary traffic lights will be needed during the works.
From 2011 to 2012 Network Rail worked on a number of bridges in Hampshire as part of their work to upgrade a second route out of Southampton docks to take larger freight containers. The works involved 17 bridges being demolished and rebuilt. Apart from Belvers Bridge, the work was completed in June 2012.