Repairs to start on Sydney Harbour Bridge REPAIR work on the Sydney Harbour Bridge will be carried out at night over the next week, the state government says. Roads Minister Duncan Gay said resurfacing and waterproofing would take place on the iconic structure between 10pm and 6am from Friday until March 26. He said the work was "essential" before a "major upgrade to the Bridge's Southern Toll Plaza." "The upgrade of the Southern Toll Plaza, which includes removing the old toll booths and realigning lanes will make it a smoother, simpler ride to the city," he said. Mr Gay said work would be undertaken on the southern sections of lanes one to eight, but did not specify how many lanes would be closed.