DONNELLY Road, Alexander Parade and Dobell Drive intersection at Wangi will be temporarily closed until further notice.
The road surface has been undermined and was damaged by recent rain.
It was closed on Thursday in one direction while Lake Macquarie Council prepares its repair program.
The council expects the work to start as soon as possible. It has requested motorists adhere to signs and changes in traffic conditions for their safety.
Go to www.lakemac.com.au or phone 4921 0333 for more information.