Parts of the A14 will be closed overnights next week with work expecting to last until the end of March.
A National Highways scheme to remove, reconstruct and resurface the road in Suffolk will begin on Monday and finish on March 28.
The work will be taking place between Haughley at junction 47a and Tothill at junction 49.
However, a contraflow system will be utilised and will cover a larger stretch of the road each night.
The works were originally supposed to take place at the start of the month but had to be postponded.
The full road closures will take place overnight when there is less traffic.
The A14 will only be closed in one direction at a time.
A statement on National Highways' website said: "Our repairs will help improve the safety of the road surface, but it will also provide a smoother and quieter journey for road users.
"Rather than repairing the potholes and cracking, the whole carriageway will be reconstructed and re-laid to ensure a smoother and safer ride.
"Once complete, we expect the life of the road surface to be extended by up to 40 more years, with fewer future closures for maintenance repairs, meaning more reliable journeys for road users."
According to the National Highways website, the upcoming closures, which will take place between 8pm and 6am, are as follows:
- Monday, February 20 until Friday, February 24 - A14 westbound junctions 51 to 47
- Monday, February 27 until Friday, March 3 - A14 eastbound junctions 43 to 49
- Monday, March 6 until Wednesday, March 8 - A14 eastbound junctions 43 to 49
- Thursday, March 9 and Friday, March 10 - A14 westbound junctions 51 to 47
- Monday, March 13 until Friday, March 17 - A14 westbound junctions 51 to 47
- Monday, March 20 until Friday, March 24 - A14 westbound junctions 51 to 47
- Monday, March 27 - A14 westbound junctions 51 to 47
- Tuesday, March 28 - A14 eastbound junctions 43 to 49
A diversion route will be in place which is as follows:
For eastbound traffic exit the A14 at junction 43 and take the A143 towards Diss and then the A140 towards Ipswich to re-join the A14 at junction 51.
For westbound traffic it is the reverse of the eastbound diversion.
The diversion is expected to add on around 40 minutes to people's journeys.
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