The last section of the former Franciscan Way underpass is to be finally filled in this month.
Suffolk County Council is to pour concrete foam into the subway ramp beside Franciscan House that has been sealed off ever since the roundabout was closed and converted into traffic lights in 2012/3.
Most of the underpass was filled in as part of that work, but the ramp was left and has to be regularly cleared of water.
Now the concrete will be poured in during a three-week operation from August 19 - a week later than originally planned - and then it will be covered with topsoil and landscaped by the end of September.
Pavements will be closed during the work, but the roads should be largely unaffected - except when a skip is installed at the side of Franciscan Way at the end of September.
And the bus stop on Princes Street outside Franciscan house will be out of action later this month as it will be used for storage.
Comments: Our rules
We want our comments to be a lively and valuable part of our community - a place where readers can debate and engage with the most important local issues. The ability to comment on our stories is a privilege, not a right, however, and that privilege may be withdrawn if it is abused or misused.
Please report any comments that break our rules.
Read the rules here