Queues of nearly three miles built up as the emergency services dealt with the spillage, which happened near the Catworth junction at around 7am. Firefighters from Huntingdon, St Neots, Stanground and Kettering tackled the incident.Firefighters from Huntingdon, St Neots, Stanground and Kettering tackled the incident. A fire service spokesman said: Firefighters arrived to find a lorry containing around 1,000 litres of a chemical substance in a layby on the eastbound carriageway near Catworth. The tank containing the chemical was leaking with around 800 litres of the chemical having spilled on to the carriageway. The spokesman said: Working with the Environment Agency, the crews diluted the chemical substance and cleared it from the road. A highways agency spokesman said that the chemical did not appear to have damaged the road surface which had been declared safe and reopened just after 9am.