Drivers are being warned to prepare for longer trips on George Bass Drive as a section of the road at Lilli Pilli will be closed for three months during major roadworks.
The section between Grandfathers Gully Road and Denise Drive will be closed from 7am Monday, June 21 to Friday, September 24.
Commuters will need to use Tallgums Way and The Ridge Road to access either side of the closure, which will have reduced speed limits of 50km/hr and 60km/hr.
Eurobodalla Council's infrastructure services director Warren Sharpe said the detour added about 2-3 minutes to trips between Surf Beach and Malua Bay.
"While the closure may cause temporary inconvenience, the volume of earthworks needed for the project requires a large number of heavy plant movements across the existing road," he said.
"Closing the road means the work can be completed sooner and far safer than building a road with more than 5500 vehicles passing through the worksite per day."
The council received a $3.8 million Commonwealth Government grant toward the project, which includes removing the tight bends and providing protected right-turn intersections to Grandfathers Gully Road and Denise Drive.
It also includes widened lanes, centreline treatments and shoulders, improved lighting, delineation, protective fencing and provision for a future shared pathway connection.
The former road reserve area will be revegetated once the new road is open.
Council is writing directly to impacted residents between Old Grandfathers Pit Road and Lilli Pilli Road regarding changes to access and bus stops and emergency services have also been notified.