A key transport link between the Upper Hunter and Liverpool Plains has officially reopened following a major reconstruction project.
The Merriwa to Willow Tree Road (MR358) project, also known as Coulsons Creek Road, was closed for almost five years after a significant landslip in 2021 caused extensive damage to the roadway and surrounding escarpment. The $48.3 million project was jointly funded by the Australian Government and NSW Government.
The rebuild involved large-scale excavation to remove unstable material, along with major drainage upgrades designed to manage heavy rainfall flowing down the steep terrain. Shotcrete, anchored slopes, rock mesh and gabion retaining walls were installed to stabilise the road and protect against future landslips.
NSW Minister for Roads Jenny Aitchison says the project has delivered a stronger and more resilient road for the future, better able to withstand severe weather events and re‑establish an important regional connection.
“While it has taken some time to achieve, this is a good outcome for the Upper Hunter, showcasing cooperation between all three levels of government and harnessing the expertise of multiple state agencies,” she said.
“This work means Coulsons Creek Road is not only fit for purpose, but has been rebuilt to better withstand future severe weather events.”
Federal Member for Hunter Dan Repacholi says the reopening delivers long‑awaited safety improvements, including new barriers, signage and line‑marking, while ensuring the route can cope with heavy rainfall in the years ahead.
“The people of the Upper Hunter have waited patiently for this project to be completed and that patience is finally being rewarded,” he said.
Upper Hunter Shire Council Mayor Maurice Collison says restoring the road is a major milestone.
“After almost five years of disruption, restoring this link strengthens access across the range and supports the ongoing productivity and resilience of our communities and regional economy,” he said.

