In message , at 09:37:19 on Fri, 19 Mar
2021, D A Stocks remarked:

https://www.ianvisits.co.uk/blog/202...-bridge-could-
re-open-next-summer/

"While the double-decker insert is in place, elements of the
bridge that need repair, including the decking, would be lifted
away using the temporary bridge as a works platform and
transported by barges to an off-site facility for safe repair
and restoration."

Doesn't say if other river traffic would be allowed to resume at the
same time as cars.

See also: https://www.bbc.co.uk/news/uk-england-london-55086118
--
Roland Perry