Labor demands Lee Evans' Heathcote Road bridge promise be delivered

Mr Evans has since appealed unsuccessfully to Premier Gladys Berejiklian and Transport Minister Andrew Constance for his commitment to be honoured.

Instead, Transport for NSW will proceed with plans to widen the existing two lanes from 6.72 metres to 9.4 metres in a project due to start in late 2021 and involve closing the road for six months .

Labor is ramping up its attack on Mr Evans over the issue, with Opposition Leader Jodi McKay visiting the area to meet with residents advocating a four-lane crossing.

Ms McKay called on the government to honour the promise.

"Heathcote Road is the most dangerous road in the Sutherland Shire," she said.

"Lee Evans has failed his community with empty promises, year after year.

"The community deserves better, it deserves what it was promised at the election."

Labor's spokesman for the Heathcote electorate, upper house MP Mark Buttigieg, said the bridge had been placing residents in danger for too many years.

"There have been far too many tragic deaths and serious accidents," he said.

"What the government is delivering is woefully inadequate."

Mr Evans said all the correspondence he had with Roads and Maritime Services (RMS) and Transport for NSW related to three options, all of which were for dual bridges.

"I was misled," he said.

"I only found out they didn't intend to duplicate the bridge two days before the plans were released for public consultation."

Mr Evans said he had since taken up the matter with Mr Constance and Ms Berejiklian, but they had said, while the whole road would eventually be made four lanes, the bridge wouldn't be duplicated in the short term.

"It is not ideal, but the climbing lanes either side of bridge will be terraced back to widen the corridor and the bridge will be made safer by widening it by 2.7metres," he said.

At the 2019 election, the Coalition promised $173 million to upgrade Heathcote Road, at both the Engadine and Liverpool ends.

Labor promised $175 million, including $2 million to plan and scope the duplication of the bridge over Woronora River.

Labor also promised to widen Heathcote Road to two lanes in each direction between Engadine and Lucas Heights.