A crane and emergency services are attending an incident on the Oxley Highway in northern NSW after a truck got stuck rounding a bend.

The highway is closed in both directions in Rosewood near Wauchope due to the wide load blocking both lanes.

The closure is expected to remain in place for some time and motorists are advised to delay their trip or use alternative routes.

Eastbound motorists can travel onto Thunderbolts Way at Walcha and the New England Highway.

Westbound motorists travelling from the north are advised to use Waterfall Way from Raleigh, while those travelling from the south are diverting at Nabiac onto Wallanbah Road via Gloucester and onto Thunderbolts Way.