A concrete truck has reportedly rolled over near Singleton, on Elderslie Road. 

Emergency services and crash investigation crews were called to the scene around 3km from the Glendon Lane turn off and Gresford Road, just before 8.00am on Tuesday morning.

The driver has reportedly not sustained any injuries.

Police have left the scene, with a salvage operation now underway. Contra flow is in place and recovery is expected to take several hours, as the concrete truck was full and may take some time to be uprighted.

One lane is closed, with slight traffic delays.