The temporary building will allow visitor services staff to talk to groups, even on rainy days, and provide space for displays and information about the history of the bridge.
Mike Rowland, Visitor Services Manager, said: “In this location it will be readily accessible to pedestrians without obstructing any of the existing footways.”
He added: “It will also allow us to supply a limited number of the guide books, postcards and souvenirs which visitors are constantly asking for.”
Providing planning permission is granted, the new temporary centre is expected to be open in around four weeks time.