Slough Roadworks This Week: M4 J4B Link Shut 8 and 9 Oct

Slough roadworks and travel, checked against the official sources on Tuesday 6 October 2026. Six things matter now.

• The link from the M4 at junction 4B onto the M25 clockwise shuts on two nights: Thursday 8 October from 10pm and Friday 9 October from 11pm. It is for urgent safety fence repairs.
• The M4 westbound exit slip at junction 7 shuts on Friday night, 9 October, from 9pm to 6am.
• No early trains run between Paddington and Slough on Sunday 11 October. Elizabeth line replacement buses run from Hayes and Harlington until 07:45.
• Burnham station loses its first and last trains on several nights this month, with buses from Slough instead.
• Deal Avenue is due to close for eight weeks from Monday 19 October, between Dover Road and Henley Road.
• The whole A4 through the borough remains a 20mph road until March 2028.

The motorway closures this week

National Highways publishes a rolling seven-day closure report. The edition covering Monday 5 to Sunday 11 October 2026 was last updated at 15:33 on 5 October.

There is less this week than last. Nothing in the report closes junction 5 at Langley or junction 6 before Sunday. The closures that matter to Slough are these.

What that means in practice:

• Joining the M25 clockwise from the M4, which is the way from Slough to the M40 and Watford, the link shuts on Thursday and Friday nights. National Highways signs the diversion over its own network.
• Even with that link open, the clockwise carriageway between junctions 16 and 17 is shut every night to Friday for surfacing. That diversion uses council roads as well as motorway.
• Junction 14 loses its clockwise entry slip on Wednesday night, the one used from Poyle and the Heathrow cargo area.
• Coming home westbound on Friday night, you cannot leave the M4 at junction 7 for Huntercombe and the west of the borough after 9pm. Junction 6 stays open.
• The M40 northbound is shut from junction 1a to junction 2 overnight on Saturday, the route from the M25 to Beaconsfield, along with the junction 1 entry slip at Denham.

The report runs a week ahead only, so later closures will not show until it is republished.

Trains: early Sunday closure, and buses at Burnham

National Rail lists four sets of engineering work through Slough in the next three weeks.

Sunday 11 October: no early trains between Paddington and Slough. All lines between Hayes and Harlington and Slough are closed early on Sunday morning, according to National Rail’s notice.

• Elizabeth line: no trains between Hayes and Harlington and Slough before 07:45. Buses replace them.
• The first Elizabeth line trains through are the 07:46 from Paddington to Reading and the 07:53 from Reading to Abbey Wood.
• GWR: the 06:20 from Reading terminates at Slough, and the 06:38 from Paddington starts from Slough at 06:56.
• Trains to and from Heathrow run normally, so they can be used between Paddington and Hayes and Harlington.

Burnham loses its very late trains on these nights. Buses run between Slough and Burnham instead, taking about ten minutes.

Dates	Trains that do not call at Burnham
Tue 6 to Fri 9 Oct	00:01 and 00:48 from Paddington; 00:19 from Reading (on Friday, only the 00:48)
Sat 10 Oct	00:01 and 00:49 from Paddington; 00:21 from Reading
Sun 18 Oct	06:26 and 07:42 from Reading; 06:38 from Paddington; 23:52 from Didcot Parkway
Tue 20 to Fri 23 Oct	00:01 and 00:48 from Paddington; 00:19 from Reading

The Tuesday to Friday notice for this week is worded precisely. The 00:01 from Paddington and the 00:19 from Reading are affected Tuesday to Thursday. The 00:48 from Paddington is affected Tuesday to Friday.

Sunday 18 October: Elizabeth line trains stop at Paddington. Work between Paddington and Ealing Broadway means trains from Abbey Wood towards Maidenhead run only as far as Paddington’s Elizabeth line platforms. Two trains an hour call at Maidenhead, Burnham, Slough, Langley and West Drayton. GWR runs a reduced local service between Paddington and Reading.

Sunday 25 October: a reduced service west of Slough. Lines between West Drayton or Slough and Twyford close for work. From 11am, Elizabeth line trains towards Reading do not call at Burnham or Taplow, and from 7pm trains towards London do not either. Buses run between Slough and Maidenhead, calling at both. GWR trains run to an amended timetable, up to ten minutes earlier or later.

Banbury Avenue: the primary dates have passed

The closure was on Banbury Avenue, Slough Trading Estate, from its junction with Dundee Road to number 8, for crane work by Select Plant Hire, part of Laing O’Rourke.

• Primary dates: 7 September to 5 October 2026. These have now ended.
• Back-up dates: 5 October to 1 November 2026, if the work was postponed by weather.

The council’s temporary orders page still lists both sets of dates. Neither the council nor the contractor has published anything to say whether the closure has lifted or moved onto the back-up dates. If you use Banbury Avenue, allow for it being shut to 1 November. The legal instrument is the Slough Borough Council (Banbury Avenue) Order 2025, Order 42 of 2025, operative from 1 December 2025 for 18 months.

The A4 is a 20mph road, and the order runs to 2028

This is still the biggest change on Slough’s roads, and it was made with a statutory notice rather than an announcement.

Slough Borough Council’s Order 18 of 2026 varies the speed limit on the A4 Bath Road, High Street and Wellington Street from 30mph to 20mph in both directions. It runs from the borough’s western boundary, about 40 metres west of the Huntercombe Lane North and Huntercombe Lane South junction, to a point 215 metres east of Wexham Road. That is effectively the A4 across the whole borough.

The order does four things:

• drops the limit to 20mph on the A4 and on Farnham Road, from the A4 to Whitby Road
• allows road closures on the same two stretches
• bans pedestrians and cyclists from the footway inside the works area
• allows a contraflow on the A4, running westbound traffic on the eastbound carriageway and the reverse, under controlled traffic management

It came into operation at 00:00 on Monday 14 September 2026 and lasts 18 months. The works are expected to be finished by 23:59 on Tuesday 14 March 2028. The sealed order, listed as the A4 Cycle Lane Order on the council’s temporary orders page, is dated Made: 21 September 2026, a week after it came into operation, and its terms match the notice.

This is a temporary works order, not a new permanent limit. It exists to let the A4 cycle lane be built, and on its own terms it expires when the works finish.

What is coming: Deal Avenue, two traffic plans and Remembrance Sunday

Deal Avenue is the one to note. The order comes into operation at 00:01 on Monday 19 October, with works expected to be complete by 23:59 on Friday 11 December 2026. That is close to eight weeks with no traffic passing between Dover Road and Henley Road. The council says an alternative highway will be available and diversions signed on site. The notice was published on 18 September through the Public Notice Portal, where it was still listed when we checked on 22 September. It has since rolled off the portal’s current Slough listing, and on 6 October it still did not appear on the council’s own orders pages, so we have not been able to reconfirm the dates this week. Nothing has been published to withdraw it.

Remembrance Sunday closes roads in three places on 8 November. The council published all three orders on 25 September under the Town Police Clauses Act 1847, and they now also sit on its own temporary orders page as one download. There is one each for the town centre, Langley and Cippenham. Each runs from 10am to 1pm and is staffed by marshals. There is no signed diversion, because the council expects the disruption to be minimal.

Colnbrook and Poyle are due a 20mph limit on 35 roads. The council published the proposed order, Order 19 of 2026, on 22 September, and objections must reach it before 9 October, which is Friday. It is still marked as a proposed order on the council’s site. It covers High Street Colnbrook, Bridge Street, Park Street, part of London Road and part of the Bath Road, plus the residential streets around them. Separately, it plans two sets of speed cushions and a speed table on Horton Road, with comments due by 16 October. We have written up both proposals in full.

Dennis Way and Plackett Way in Cippenham would become a School Street. The council published Order 20 of 2026 on its permanent orders page on 25 September. Both roads would close to traffic from 8am to 9am and 3pm to 4pm on weekdays, except for cyclists, permit holders and emergency vehicles. Objections are due within three weeks, by 16 October. The notice’s permit clause names Moat Drive, a street in Wexham, rather than Plackett Way. We have set out the detail.

Just over the border in Buckinghamshire, two short closures are proposed in the county’s statutory notices on the Public Notice Portal. Both are proposed orders, and both keep access.

• Britwell Road, Burnham, about 53 metres, for coring works from 29 October. The alternative route is Hogfair Lane and Lower Britwell Road.
• Station Road, Taplow, about 101 metres, for a bridge inspection from 11 October. The alternative route is Institute Road, Hitcham Road and the Bath Road.

What is being built on the A4, and how long it is meant to take

The order above exists because of the A4 cycle lane. The council secured £10.4 million from the Department for Transport and Active Travel England for a two-way cycle lane, about 2.5 metres wide and mostly segregated, running alongside the A4 Bath Road from the Huntercombe Lane crossroads to Uxbridge Road. It is being built in three phases: Huntercombe Lane North to Dover Road, Dover Road to Pitts Road, then Pitts Road to Uxbridge Road via the High Street and Wellington Street.

The council publishes a provisional timeline for the major highway works, section by section. It runs to May 2028, and it is the single most useful document on the scheme if you drive or cycle the A4.

The provisional dates, as the council publishes them:

• Huntercombe Lane crossroads to Goldsworthy Way: 12 January to 31 March 2026
• St Andrews Way to Elmshott Lane and Station Road: July to November 2026
• Elmshott Lane to Burnham Lane: November 2026 to May 2027
• Tuns Lane to Montem Lane: November 2026 to May 2027
• Burnham Lane to Dover Road: April to July 2027
• Dover Road to the Pitts Road crossing: June 2027 to April 2028
• Montem Lane to Stoke Poges Lane: May 2027 to March 2028
• Stoke Poges Lane to Wexham Road: March to May 2028

The council warns that the programme may change and that traffic management plans are subject to change at short notice.

Its A4 works diary has not moved since 7 September, which is 29 days. Three things from that entry are still on the record, and one of them has fallen due:

• Ducting for new traffic signals continues at the St Andrew’s Way junction with Bath Road. Works at that junction are expected to run until early December, and include new crossing points, new signals, revised islands and the closure of the service road that comes out into St Andrew’s Way.
• A 28-day concrete curing period is running on the service road by the Mini garage. Resurfacing follows once it is complete.
• The new entry into that service road, coming off the Huntercombe roundabout, is expected to be open by 28 September. That date has passed, and the council has published nothing to say whether it opened.

Farnham Road: 63 days with no update

Destination Farnham Road is rebuilding the A355 from the Bath Road junction north through the shopping stretch. It started on 17 November 2025 and it is still the main source of delay in the borough. Farnham Road from the A4 to Whitby Road also sits inside the A4 order, so that stretch is 20mph too.

Two dates from the council’s own updates are the ones to plan around.

• The Three Tuns junction is on temporary lights for six months. The update of 15 July 2026 records that the switch was made at the weekend of 11 and 12 July, which runs the six months to roughly mid-January 2027.
• The Bath Road to Farnham Road section was due to run to approximately mid-October. Mid-October is now days away, and the council has not updated that estimate. Work on that stretch started on 22 July 2026 and covers realignment of the central island, drainage, ducting, footway and carriageway works.

The council also confirms that the dedicated left-turn lane from Bath Road, outside the Tuns pub, into Farnham Road is closed and will not be reinstated once works are complete.

Here is the honest position on the rest of it. The Destination Farnham Road updates page has not been touched since 4 August, which is 63 days. Its own project page tells residents to check back monthly. The last entry has work moving up Farnham Road south of the roundabout in stages for kerbing and footways, and continuing by Metro Bank to remove the central island and realign the carriageway. Anything more recent is not on the record, and we are not going to guess at it.

The £9.3 million for the scheme came from the Department for Levelling Up, Housing and Communities in February 2023. It is not resurfacing: the finished road is meant to carry a 20mph limit through the shopping area, two-way cycle routes, rebuilt crossings, upgraded lighting, better bus stops, revised parking, park improvements and sustainable drainage.

Five other major highways schemes are live or in preparation alongside it: the Poyle Road bus gate, Stoke Road area regeneration highway works, High Street Langley widening and junction signalisation, Slough Mass Rapid Transit Phase 2, and the Colnbrook and Poyle 20mph and Horton Road traffic calming proposals.

What has finished, and what we could not confirm

Albert Street, from Windsor Road to Upton Park, was proposed for closure over the weekend of 26 and 27 September. The council only ever published a notice of intent for it, dated 31 July, and no sealed order has appeared since, so we cannot say whether the closure went ahead. Either way, those dates have passed.

The weekend motorway closures have finished. The M25 clockwise carriageway at junction 15 (Saturday 3 October) and the M25 anti-clockwise link onto the M4 at junction 4B (Sunday 4 October) no longer appear in National Highways’ report for this week. Neither does the M4 J6 eastbound entry slip, shut on 28 September and 2 October.

Albion Close was booked for a single night, from 23:30 on 3 October to 06:00 on 4 October, for work on the telecoms mast at the Petersfield Avenue junction.

The telecoms work on Bath Road for euNetworks, which banned the right turn into Ledgers Road, was scheduled by JSM Group Services for 19 and 20 September and those dates have passed. The sealed order behind it, the Slough Borough Council (Bath Road) Order 2026, Order 6 of 2026, still runs to late 2027, so further lane closures can be taken under it without a fresh order. The council has published nothing to say the work is complete.

The order covering 1.2 kilometres of National Cycle Network route 461, from the borough boundary next to 93 Wiltshire Avenue in SL2 to a point 40 metres south of the Belfast Avenue junction in SL1, said the works were expected to be complete by 23:59 on Sunday 13 September 2026. Twenty-three days on, the council has published nothing to confirm that they were. The order itself was made for six months from 20 July, so it can still stand. Note that it closes the cycleway, not Belfast Avenue.

The parking rules that changed in August, and are still in force

Three orders made by Slough Borough Council came into force on 21 August 2026, all published as statutory notices signed by Matthew Hooper, the council’s Director of Environment and Highways. They are settled now, but they are recent enough that plenty of drivers have not caught up with them.

Waiting and loading restrictions changed on 25 roads. Amendment No. 57 altered waiting and loading restrictions and parking places on parts of these roads, and updated existing orders covering controlled parking zones B and E:

• Albert Close, Albert Street, Alpha Street South
• the Bath Road service road in front of numbers 135 to 147
• Bishops Road, Castle Street, Charter Close, Church Street, Clifton Road
• Glentworth Place, Grove Close, Hanover Close
• Hencroft Street North, Hencroft Street South, Herschel Street
• the High Street Chalvey service road in front of numbers 15 to 31
• Mere Road, Merton Road, Osborne Street, Park Street
• St Laurence Way, Sussex Place, The Grove, Upton Park, Victoria Street

One caution. The notice was headed “(PROPOSED ORDER)”, but its own text said the council made the order on 20 August and that it came into force on 21 August. Check the plans on the council’s orders page before you assume the lines outside your door have changed.

Elmhurst Road in Langley now has resident permit parking, plus waiting and loading restrictions at all times next to number 1a. Permits are available to the odd numbers 1a, 1 to 33, 33a and 35 to 47 on the north side, and the even numbers 2a and 2 to 48 on the south side.

A 40mph order covers seven roads, but nothing changed on the ground. The council consolidated its historic 40mph limits into one order covering Wexham Road, Uxbridge Road (A412), Sutton Lane, Hurricane Way, Hollow Hill Lane, Slough Road (A332) and Ditton Park Road. Its own statement of reasons calls it an update and consolidation of historic orders.

The routes that carry Slough

The borough is 32 square kilometres and almost every journey uses one of five things.

• The A4 Bath Road runs the length of the borough east to west, through the town centre and past the trading estate. It is the road that fails first when the M4 closes, and it is now 20mph along its whole length here.
• The A355 Farnham Road is the main north-south route, up towards Farnham Royal and Beaconsfield. It is the one being rebuilt.
• The M4 runs along the south. Junction 5 serves Langley, junction 6 the town centre, junction 7 the west of the borough, and junction 4B is the M25 interchange to the east.
• The A412 runs south through Langley to Datchet and north to Uxbridge.
• The M25 is minutes away to the east at Colnbrook and Poyle, which is why a problem at M25 junction 14 or 15 becomes a Slough problem within the hour.

Where we check, and where you can check

• Slough Borough Council’s temporary traffic orders and permanent orders, which carry the sealed orders, the notices of intent and the contractors’ letters.
• The National Highways seven-day closure report for the M4 and M25, republished twice daily on working days.
• The council’s A4 cycle lane and Destination Farnham Road project pages.
• The Public Notice Portal, which sometimes carries a Slough order before the council’s own pages do.

More Slough information: bin collection days, parking in Slough, council tax bands and planning applications.