Organisers are working to minimise the potential disruption that will be caused by The Mall being closed for three months.
The closure is a result of preparations for the Olympics and the Queen's Diamond Jubilee needing to be made, London 2012 chairman Lord Coe said.
The Mall connects Buckingham Palace to Trafalgar Square and runs along the side of St James's Park in central London.
Following the Queen's Diamond Jubilee and birthday celebrations, organisers will have just 36 days to get all the scoreboards, video boards, seating, cabins and generators in place in time for the Games which commence on July 27.
These will not be removed until after the completion of the Paralympics Games on September 9.
Lord Coe said: "We want to minimise as much as possible any disruptive impact but we do have that challenge of a very limited time - particularly because of the Diamond Jubilee and other commitments to build these temporary venues."
There are lots of venues to be organised including beach volleyball, triathlon cycling and race walking, Lord Coe added.
Copyright Press Association 2012