The A14 is set to close overnight and a temporary speed limit will be introduced tomorrow due to flooding.
National Highways has confirmed the eastbound carriageway will be shut between junction 37 and 38, near Newmarket, due to ongoing flooding problems.
While 10 million litres have been extracted from the site since last week, a full closure will be installed between 9pm on Tuesday until 5am on Wednesday for further work.
Following the reopening of lane three, a 40mph speed limit will be in operation on Wednesday.
Pumps and tankers remain at the site as both National Highways and the Environment Agency, as well as other partners, resolve the issue.
READ MORE: Calls for investigation into A14 flooding at Newmarket
The source of the flooding is believed to be from high water levels in the area.
National Highways regional director, Martin Fellows, said: “We apologise for the inconvenience caused to drivers and local communities.
"The team is making every effort to remove the standing water in all lanes. This flooding issue is now a regional priority, and we are seeking assistance from all parties.”
A spokesperson for the Environment Agency said: “We are currently working with partners at National Highways around the flooding issues on the A14 at Newmarket.
“Following the exceptional rainfall in the area over the last few months, the ground is very saturated and groundwater levels are high.
“We currently have a groundwater flood alert in force for areas of Newmarket.”
Drivers are urged to avoid the area until it is fixed.
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