Paul Taylor, 60, from Fareham, Hampshire has been found guilty of the murder of Sally McGrath.
The 22-year-old's body was was found in woodland near Peterborough in March 1980. Former soldier and builder Taylor, who is now 60, from Fareham in Hampshire had denied murder.
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The employee was sorting through rubbish at waste company Amey's Waterbeach facility.
Ice is expected to form on some surfaces from late Tuesday afternoon and last overnight into Wednesday morning.
Ian Tang was last seen at 2.30am on Sunday leaving the KA club in North Walsham.