A27 Langstone Interchange bridge safety work
We're performing essential safety and maintenance works on the A27 at Langstone Interchange.
Latest updates
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03 September 2026
New closure dates announced
Due to traffic incidents in the area on the last weekend of September we cancelled our planned closure of the westbound carriageway as we would not have had enough time to complete our planned work.
It also meant we could minimise disruption for road users following the incidents.
We have now scheduled this work for later in October.
Westbound weekend closures
Friday 9 October - A27 westbound from Emsworth (Warblington) to Bedhampton
Closed overnight (9pm-6am).
Saturday 10 to Sunday 11 October - A27 Langstone interchange westbound
Closed from 6am Saturday to 9pm Sunday.
Sunday 11 October - A27 westbound from Emsworth (Warblington) to Bedhampton
Closed overnight (9pm-6am).
Saturday 17 to Monday 19 October - A27 westbound from Emsworth (Warblington) to Langstone
Closed from 9pm Saturday to 6am Monday.
Weekday closures - closed overnight (8pm-6am)
Monday 12 to Friday 16 October – A27 Langstone interchange westbound
Monday 19 to Friday 23 October – A27 Langstone interchange westbound
Diversions
A27 Bedhampton to Emsworth east and westbound diversion map
A27 Langstone interchange east and westbound diversion mapPlease remember that closures can change at short notice. You can check the latest information on our daily closures page. Our travel alerts give details of live incidents on our network.
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10 June 2026
Bridge safety improvements - what we are doing and why
We're replacing steel parapets, waterproofing, and expansion joints on both bridges.
Inspections found serious corrosion, worn waterproofing, and ageing joints causing noise for nearby residents.
Narrow lanes and reduced speed (22 June – 25 August)
Both directions will have narrow lanes throughout this period. A 40mph limit applies through the works.
Approaching from the A3 junction (eastbound) or Warblington junction (westbound), expect a 50mph limit.
Closures
15 June to 25 August - A27 Langstone interchange
We'll need a mixture of eastbound, westbound and full closures overnight (9pm - 6am) on weeknights (Monday to Friday).
Diversion -
Most closures will just be a short diversion taking you off and back on at A27 Langstone interchange.However, on occasions there will be a slightly longer signed diversion route in place. This is due to additional works also taking place to the East of Langstone.
September – Full weekend closures
The A27 closes from 9pm Friday to 6am Monday on these dates:
- westbound – 4 to 7 September and 25 to 28 September
- eastbound – 11 to 14 September and 18 to 21 September
Avoid this stretch of the A27 if you can during these weekends.
Please follow all signed diversion routes.
Plan ahead
- Check traffic conditions before you travel.
- Allow extra time, especially during peak hours and the school summer holidays.
- Travel outside peak hours where you can.
Project information
Overview
We're doing essential safety and maintenance works on the A27 at Langstone to keep this important stretch of the A27 safe and reliable for the many thousands of people who use it every day.
Benefits
Once complete, these works will extend the life of both bridges, improve safety for road users, and significantly reduce the noise caused by the ageing deck joints – benefiting people living near the interchange.
This investment secures the A27 as a safe, reliable route for communities and businesses across the south coast for many years to come.
Documents
Traffic information
Information about scheduled roadworks and events on our motorways and major roads.Sign up for updates!
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