Improving bicycle access to the Sydney Harbour Bridge could be one of the projects bankrolled by a new $80 million cycling infrastructure fund.

Cyclists must currently push their bikes up several flights of steps to reach the main deck on the northern side of the harbour crossing.

Cyclists on the steps leading up to the Harbour Bridge. Credit:Dean Sewell

The money, to be announced in Tuesday's NSW budget over four years, will from July 1 deliver priority projects identified by an assessment panel comprised of government, cycling and road user groups.

It will come out of the government's infrastructure fund, Restart NSW, which holds the proceeds of asset sales and windfall tax gains.