The future of an environmentally significant tree within Gelorup remains uncertain as the community await the government's decision on the final route for the Bunbury Outer Ring Road.
The decision was expected to be made by the end of the first quarter of 2019.
Main Roads spokesman Dean Roberts said the decision regarding the southern corridor selection for the Bunbury Outer Ring Road was still being determined.
"Given the significance of this decision it requires consideration at a high level within the State Government," he said.
"We appreciate this decision is a significant milestone for affected landowners and others in the community, and that it is creating much anxiety - a decision will be communicated as soon as practicable."
Resident Carly Stone said the giant tuart tree, which stands in the path of the BORR was nationally significant due to its size, rarity and age and was currently under assessment by the National Trust of WA.
"This significant tree is estimated to be over 300 years old, it has survived European settlement, agricultural clearing and land development," she said.
"The residents of Gelorup hope it will survive this road, which is worth half a billion dollars."