The federal government has committed $8 million to the Howard Creek causeway upgrade on Tamborine Oxenford Road.
Assistant Road Safety Minister, Scott Buchholz said this was a win for Queensland and importantly, a win for the people of Tamborine Mountain.
"This has been a project long awaited by residents on the mountain," he said.
"In times of heavy rain and localised flooding, the Howard Creek crossing on Tamborine Oxenford Road becomes completely submerged, and therefore closed to motorists and cyclists.
"For the many locals that need to travel to the Gold Coast, for work, school, medical appointments or simply leisure - they have to then find an alternate route."
A Main Roads spokesperson said the $10 million upgrade of Howard Creek Causeway, about 11km from Oxenford would provide a safer alignment and increased flood immunity.
"The project will include raising and lengthening existing culverts, widening the road approaches and upgrading the Lanes Road and Colin Meagher Road intersections," the spokesperson said.
"Design has been completed and we expect a construction start date to be confirmed in coming months."
Mr Buchholz said the federal government contribution would cover 80 per cent of the upgrade costs.
Scenic Rim MP Jon Krause said he had been fighting alongside his coast colleagues Mark Boothman and Michael Crandon for this upgrade.
"Whenever I mention Howard Creek crossing to people on the mountain, they know right away that it needs work," he said.
"This is a great outcome for all those residents. The LNP's local MPs together have worked hard to ensure the Queensland government has this project 'shovel ready' - and that's why it is fantastic to see the LNP federal government supporting Tamborine Mountain."
Mr Buchholz said the funding formed part of the Morrison governments $1.5 billion infrastructure stimulus package, to support jobs and the economy through the coronavirus pandemic.
"Under this package, Queensland receives a significant $324.34 million boost to road investment. Our Government is committed to delivering better, safer roads in Queensland to get locals home to their families, sooner and safer." he said.