The A14 is partially blocked eastbound due to an accident near Junction 29 for Bar Hill in Cambridgeshire
The crash involves two lorries. There is congestion to Junction 28, Cambridge Services.
Travel time is currently 60 minutes.
Abellio, who run the Greater Anglia rail line, has been named Train Operator of the Year at the annual national Rail Business Awards.
Greater Anglia train operator Abellio says it's made real steps in customer service and punctuality in its first year in charge.
Greater Anglia have apologised for the delays that have disrupted services today