This morning's massive breakfast picnic which closed the Sydney Harbour Bridge could become an annual event.

Sydney's first Breakfast on the Bridge, held as part of a city-wide food festival, has been hailed a success, with about 6,000 picnic goers in attendance.

The eight lanes of bitumen were given a temporary makeover before dawn, including 10,000 metres of turf, live music and even a small herd of cows.

Sid Elias, who proposed to his girlfriend at the picnic, says he and his now fiance plan to spend their anniversaries at future picnics if it does become a fixture.

"I think I will yes - great story to tell," he said.

Another picnic goer, James Beauchamp, says the event had a festive feel.

"It's been fantastic - we just came in by train and there was a big queue but everyone was really friendly," he said.

"I think it's been a bit of a carnival atmosphere; everyone really enjoying it and getting into the spirit and having a good time."

Participants in the picnic were drawn from a ballot of 45,000 people and had to set up to eat from as early as 5:45am (AEDT).

Organisers have been rolling up and removing the tens of thousands of metres of turf and clearing the bridge, which was due to reopen at 1:00pm (AEDT).

New South Wales Premier Nathan Rees earlier today added to speculation the event may become an annual fixture, hailing it as a major success.

Meanwhile, a man has been charged with driving offences after a police chase over the closed Harbour Bridge early this morning.

It is alleged the 25-year-old man failed to stop at a police checkpoint at Kirribilli around 3:00am and then lead police over the bridge and into the CBD.