Motorists are being told to expect delays as a major flyover project enters its final year of work.

For the next two months, there are a number of closures on the A249 between Sittingbourne and Maidstone for the latest phase of the £100 million Stockbury roundabout revamp.

The next phase will see National Highways constructing the new A249 carriageways to the south of the roundabout.

It will include removing the existing road and building up the layers which will form the new carriageway, as well as drainage, construction of the central reservation, and safety barrier improvements.

As a result, the southbound A249 carriageway between the Stockbury roundabout and Church Hill will be shut for five weeks.

The M2 junction 5 London-bound exit slip will also be closed, with traffic diverted to Junction 4 at Gillingham.

There will also be closures on the opposite A249 carriageway at some point which will happen at weekends or overnight to minimise disruption.

Friday, February 16 to Monday, February 19 – A249 northbound weekend closure

The A249 northbound towards Sittingbourne/Sheppey will be closed between the M20 Junction 7 and the Stockbury roundabout from 8pm on Friday, February 16, to Monday, February 19 for preparation work.

A signed diversion will be in place via the M20, A229, M2 and A249. For non-motorway traffic, drivers should use the A249, A229, A2 and A249.

To maintain access to local properties, National Highways will be allowing traffic to join the Sheppey-bound carriageway via the crossovers from the A249, with the exception of Church Hill which will be fully closed. When on the northbound carriageway, traffic can travel as far as the Rumstead Lane crossover. There will be no access to the A249 northbound from the M20 Junction 7.

Monday, February 19 to Saturday, March 30 – closure of Church Hill exit

When the A249 northbound reopens on Monday, February 19, the Church Hill exit will remain closed until 5am on Saturday, March 30. During this time the new junction with Church Hill shall be built.

Drivers are being told to use Chalky Road or Bull Lane to join the A249.

There will be traffic lights in place to allow access into Church Hill on weekdays, however, there will be some full overnight and weekend closures.

Larger vehicles will be able to use the Church Hill exit while it is closed, by arrangement only. Anyone who needs access for larger vehicles during the closure should email M2J5@nationalhighways.co.uk with their contact details.

Friday, February 23 to Saturday, March 30 – A249 southbound closure

The A249 southbound will be closed from the Stockbury roundabout to Church Hill, along with the M2 junction 5 London-bound exit slip, from 8pm Friday, February 23, to 5am Saturday, March 30. There will be no access to the A249 from Oad Street or South Green Lane during this time.

A signed diversion will be in place via the M2, A229, M20 and A249. For non-motorway traffic, use A249, A2, A229, A249.

To leave the M2 London-bound and join the A249 towards Sheppey, stay on the M2 to Junction 4 and return to Junction 5 on the coastbound carriageway.

For properties with direct access from the A249 between the Stockbury roundabout and Church Hill, use Pett Lane/Road and South Green Lane to access and leave your properties. There will be no access to the A249 southbound from the Stockbury roundabout.

Sunday, March 10, Thursday, March 28 and Friday 29 March – A249 northbound overnight closures

The A249 northbound between M20 Junction 7 and the Stockbury roundabout from 8pm Sunday, March 10 to 5am Monday, March 11 to move northbound traffic onto the southbound carriageway.

The A249 will be shut again between M20 junction 7 and the Stockbury roundabout overnight between Thursday March 28 and Friday March 29 between 8pm and 5am each night.

Access for residents of the A249, Detling and Stockbury will be maintained from the M20 junction 7 during the closures.

A diversion is in place between the M20, A229, M2 and A249. For non-motorway traffic please use the A249, A229, A2 and A249.

When the road reopens at 5am on Saturday, March 30, both sides of the A249 will be open.

While the A249 is closed, National Highways will also be working on the southern links to the upgraded junction, including the Maidstone-bound exit from the Stockbury roundabout, the Sheppey-bound A249, the South Green link road which will connect South Green Lane and Oad Street to the Stockbury roundabout and the M2 London-bound exit slip.

Anyone with questions about the project can meet the National Highways team at Stockbury Village Hall on Wednesday, February 7, from 11am to 12.30pm and 6pm to 8pm.

Alternatively, they will be at Oad Street Food and Crafts café on Wednesday, February 14, between 10am and midday, and again from 5pm to 7pm.