Thanks. Found this and looks like they are trying to finish up this week:
https://nationalhighways.co.uk/our-work/south-east/a27-falmer-drainage-repairs-and-maintenance/
as the road will be closed overnight to remove the concrete safety barriers. However makes no promises of being done in...
https://www.theargus.co.uk/news/19853305.brighton-fans-drivers-warned-plan-journeys-ahead-a27-closure/
"DRIVERS and football fans are being warned of potential delays due to a road closure on the A27.
The westbound carriageway between the Ashcombe roundabout, Lewes and the Carden Avenue...