The road linking Pevensey Bay to Eastbourne is see delays for most of the rest of the year.
Coast Road will be affected from 8am – 5pm Monday to Friday and 8am-4pm on Saturdays, starting today (1 November) until Friday 13 January.
A joint scheme between East Sussex Highways and SGN to replace old gas mains.
A mixture of temporary traffic lights and road closures will be put in place to manage the flow of traffic throughout the work and some street parking may be restricted.
Stagecoach has also confirmed bus timetables will be altered throughout the work.