You can access roadworks information by logging onto one.network for day to day traffic interruptions. They will endeavour to post major road closures where possible. The latest updates on their works can be found on their website at "Temporary road closures for Suffolk Highways roadworks” and on One.Network website.
The A14 Haughley to Tothill reconstruction scheme will result in overnight closures and single carriageways from March 2023 until completion expected in the Summer 2024. You can read about the closures in the National Highways document received. The overnight diversion route is the A143 / A140.