The Three Tuns junction went to temporary lights in mid-July for six months, and Bath Road works run to mid-October. Live checks, car park prices and the routes that jam.
One scheme is responsible for most of the delay in Slough at the moment, and it is not going away this year. Destination Farnham Road is rebuilding the A355 from the Bath Road junction north through the shopping stretch, and the council has been publishing what its contractors are doing week by week since it started on 17 November 2025.
Two dates from those updates are the ones to plan around.
The two that will cost you time
The Three Tuns junction is on temporary traffic lights for six months. The council’s update of 15 July 2026 records that “the switch to temporary lights for six months at the Tuns junction was made at the weekend”, and that it was “actively looking at the phasing of traffic lights and what we can do to reduce the congestion caused by lane closures”. On the same page the council 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”.
The Bath Road to Farnham Road section runs to approximately mid-October. Works on that stretch started on 22 July 2026 and cover realignment of the central island, drainage, ducting, footway and carriageway works.
The most recent update, dated 4 August 2026, 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.
What the scheme is, and why it takes this long
The council received £9.3 million from the Department for Levelling Up, Housing and Communities in February 2023 for Destination Farnham Road. It is not resurfacing. The finished road is meant to carry a 20mph limit through the shopping area, new two-way cycle routes, rebuilt pedestrian crossings, upgraded street lighting, better bus stops, revised parking, park improvements and sustainable drainage. Rebuilding kerb lines and drainage on a live A road is what produces months of single-lane running.
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 A4 cycle lane.
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 the trading estate. It is the road that fails first when the M4 closes.
- 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 and junction 7 the west of the borough.
- 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.
There is no park and ride serving Slough. The alternatives to driving into the centre are the town-centre car parks, the station, and the First Berkshire & The Thames Valley bus network, whose number 8 also runs from Slough to Heathrow Terminal 5.
What it costs to park in Slough
Council tariffs, from the council’s own car park records.
| Car park | 1 hour | 2 hours | 4 hours | All day |
|---|---|---|---|---|
| Harrow Market, Langley | £1.20 | £1.90 | £3.35 | £6.00 |
| Buckingham Gardens | £1.80 | £3.00 | £5.40 | £6.60 |
| The Grove | £1.80 | £3.00 | £5.40 | £6.60 |
| Herschel Street | £2.40 | £3.60 | £6.00 | £7.20 |
Three things to know before you pick one. Herschel Street closes overnight, from 10pm to 7am, and the council warns that vehicles left after 9.30pm risk being locked in until the morning; it has 448 standard spaces over ten levels, a 1.9 metre height limit and electric charging points with no time limit. Buckingham Gardens and The Grove are open 24 hours. And Burnham Lane, out at Burnham station, is priced as a commuter car park rather than a shopping one: £8.40 in the Monday to Friday peak, £3.60 off-peak between 10am and 4pm.
For the station itself, the APCOA-run Slough Station West on Brunel Way charges £8.80 on weekdays and £6.50 after 4pm or at weekends, app or QR payment only. The full breakdown is on Slough trains to London.
Where to check before you set off
- one.network maps every registered road closure and set of works in the borough, including utility works the council does not run.
- National Highways traffic updates for the M4 and M25, which the council has no control over.
- Slough Borough Council’s temporary traffic orders list the legal notices behind residential street closures. It is the place to look when your own road is being dug up and nobody has told you why. Two currently listed with dates: Banbury Avenue, closed 7 September to 5 October 2026, and Belfast Avenue, from 20 July with works expected to finish by 13 September 2026.
- The Destination Farnham Road updates page, which the council refreshes roughly weekly with what the contractors are doing next.
Frequently asked questions
How long will the Farnham Road roadworks last?
The scheme started on 17 November 2025 and the council has not published an overall completion date. Two sections have dates: the Three Tuns junction is on temporary lights for six months from mid-July 2026, and the Bath Road to Farnham Road section runs from 22 July to approximately mid-October 2026.
Why is Farnham Road being dug up?
It is the £9.3 million Destination Farnham Road scheme, funded by the Department for Levelling Up, Housing and Communities in February 2023. It brings a 20mph limit through the shopping area, two-way cycle routes, new crossings, street lighting, bus stops and drainage.
Is the left turn from Bath Road into Farnham Road coming back?
No. The council states that the dedicated left-turn only lane from Bath Road outside the Tuns pub “will not be reinstated once works are complete”.
Does Slough have a park and ride?
No. The town-centre council car parks, Slough station and the bus network are the alternatives to driving in.
Where can I see Slough road closures on a map?
one.network shows live and planned works across the borough. The council’s own public notices and orders page carries the temporary traffic regulation orders behind them.
What is the cheapest car park in Slough?
Of the council car parks, Harrow Market in Langley at £6.00 for the day, then Buckingham Gardens and The Grove at £6.60. Herschel Street is £7.20 but is the largest and has electric charging.
Sources
- Slough Borough Council, Destination Farnham Road updates for the updates of 4 August, 15 July and 7 July 2026, the six-month temporary lights at the Three Tuns, the mid-October date for the Bath Road section and the removal of the left-turn lane.
- Slough Borough Council, Destination Farnham Road project overview for the £9.3m funding, the February 2023 award and the 17 November 2025 start.
- Slough Borough Council, major highways projects for the list of live schemes.
- Slough Borough Council, public notices and orders for the Banbury Avenue and Belfast Avenue traffic orders.
- Slough Borough Council car park records for Harrow Market, Buckingham Gardens, The Grove, Herschel Street and Burnham Lane.
- APCOA, Slough Station West for the station car park tariff.
Roadworks dates move. Check one.network and the council’s own updates page before you rely on any of this. What is being built at the end of those roads is on Slough planning news; somewhere to go once you are through it is on things to do in Slough.
Have your say
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