VOLUNTEERS are invited to take part in a dig on the site of the largest known stone bridge in Roman Britain.

Work will take place near Corbridge, Northumberland, with the help of a £303,500 Heritage Lottery Fund grant, this summer. Keeper of field archaeology Margaret Snape will give a lecture on the project at 12.30pm on Wednesday, at Segedunum Roman fort, Wallsend, North Tyneside