Home> Travel news> Projects and Events> M8 Major Works | Gantry Upgrades

M8 Major Works | Gantry Upgrades

M8 Junctions 12-29
28th of September 2026, 8:00pm to 28th of November 2026, 6:00am

Amey’s Transport Scotland Infrastructure Contract (TSIC), on behalf of Transport Scotland, is undertaking a major package of gantry refurbishments on the M8 – within the Amey Southwest Trunk Road network - between September and November 2026. The work will require the following closures and diversions:

September - November

Mon 28th September – Fri 3rd October: M8: 8pm to 6am Overnight:
(M8w Jct 16 – 21)

·  Total closure of the M8 westbound between Jct 16 – 21, Jct 17 on-slip from West Graham St, Jct 19 Off & On-slip from Newton St, Jct 18 to Charing Cross off-slip total closure, Jct 20 off-slip to West St.

·  Traffic to divert down Newton St then A804 to Argyle St then turn right on James Watt St - continue along Broomielaw - head south on Glasgow Bridge - head west along Nelson St then turn left onto Paterson St - join M77 via Dalintober St - join M8 via M77.

·       Closure of Jct 19 on-slip from Waterloo St and the Jct 19 link road from Stobocross.

·       Continue A814 to Argyle St then turn right on James Watt St - continue along Broomielaw - head south on Glasgow Bridge - head west along Nelson St then turn left onto Paterson St - join M77 via Dalintober St - join M8 via M77.

 

Mon 5th October – Fri 9th October: M8: 8pm to 6am Overnight:
(M8w Jct 27 – 29)

·  Total closure of the M8 westbound between Jct 27 and 29, Jct 29 off-slip to St James, Jct 28 and 27 off-slips shut, and slip via Jct 28-A737.

·  Traffic will exit the M8 WB via Jct 27 off-slip - join Renfrew Rd SB - turn right to A726 Niddry St - continue A726 onto Caledonia St - continue A726 to St James Interchange - join M8 WB

 

Mon 12th October – Fri 16th October: M8: 8pm to 6am Overnight:
(M8w Jct 27 – 29)

· Total closure of the M8 westbound between Jct 27 and 29, Jct 29 off-slip to St James, Jct 28 off-slip, 27 on/off-slips shut, and slip via Jct 28 to the A737.

· Traffic will exit the M8 WB via Jct 27 off-slip - join Renfrew Rd SB - turn right to A726 Niddry St - continue A726 onto Caledonia St - continue A726 to St James Interchange - join M8 WB.

 

Mon 19th October – Fri 23rd October: M8: 8pm to 6am Overnight:
(M8w Jct 25a – 29)

· Total closure of the M8 westbound between Jct 25a and 29, Jct 28 to the A737, Jct 26 & 27 on/off-slips and Jct 29 off-slip.

· Exit M8 WB J25a off-slip - join Old Govan Rd - turn right onto Kings Inch Rd - continue onto Hillington Rd - take the 3rd exit at the roundabout onto Glasgow Rd - take the 3rd exit at Millburn roundabout - continue on High Street - turn left onto Hairst Street - continue onto Paisley Rd. At the roundabout, take the 2nd exit onto Renfrew Rd - continue on Renfrew Rd - turn right onto Weir St - Old Sneddon St - St James St - turn right onto Caledonia St - Greenock Road to St James Interchange - join M8 WB.


Mon 26th October – Fri 30th October: M8: 8pm to 6am Overnight:
(M8w Jct 25/25a – 26)

· Total closure of the M8 westbound between Jct 25/25a – 26, Jct 25/26 on-slips, and 25a/26 off-slips.

· Diversion Via J25a WB off-slip - Old Govan Road - Kings Inch Road - Hillington Road - rejoin M8 J26 WB on-slip.

· Jct 25 on - Fifty Pitches Road - Shieldhall Road - Renfrew Road - Hillington Road - Rejoin J26 WB.

· Jct 26 off - Diversion Via J25 WB off-slip - Fifty Pitches Road - Shieldhall Road - Renfrew Road - Hillington Road - Rejoin J26 WB.


Mon 2nd November – Fri 6th November: M8: 8pm to 6am Overnight:
(M8w Jct 22 – 25/Jct 18 Kingston Br/M74s Jct 1/M77 Jct 1)

· Total closure of the M8 westbound between Jct 22 – 25, Jct 18 secondary carriageway (Kingston Bridge), Jct 24/25 off-slips, Jct 24 on-slip, M8-M77 Jct 1 s/b, M74-M8 w/b Jct 23 off-slip, and Jct 25 – 24 e/b lane closure.

·  Div for M8: M77 off at Jct 1 - Dumbreck Road to Paisley Road West - right to A739 - Diversion ends.

·  Div for M74: M8 off at J23 Dumbreck Road and follow diversion as above

·  Div for Jct 24 on-slip: Helen Street to Paisley Road West follow Diversion


Mon 9th November – Fri 13th November: M8: 8pm to 6am Overnight:
(M8w Jct 19 – 22/M8e Jct 22 – M77)

· Total closure of the M8 westbound between Jct 19 – 22, Jct 19 link rd from Stobocross, Jct 19 on-slips from both Waterloo St, and Newton St, and M8 e/b Jct 22 – M77 s/b.

· West Street - Paisley Road - Paisley Road West - Helen Street re-join M8 at J24 on-slip

· (Jct 19 Link Rd from Stobocross) - Clyde Tunnel Expressway onto Argyle Street - right onto Robertson Street - left onto Broomielaw - right onto Glasgow Bridge - Bridge Street - right onto Nelson - Morrison Street - left onto Paterson Street - right onto Wallace Street - turn left onto Dalintober Street - end.

· (Jct 19 On from Waterloo St) - Waterloo Street - Wellington Street - Robertson Street - left onto Broomielaw - right onto Glasgow Bridge - Bridge Street - right onto Nelson - Morrison Street - left onto Paterson Street - right onto Wallace Street - turn left onto Dalintober Street - end.

· (Jct 19 On from Newton St.) - Pitt Street - right onto Waterloo Street - Wellington Street - Robertson Street - left onto Broomielaw - right onto Glasgow Bridge - Bridge Street - right onto Nelson - Morrison Street - left onto Paterson Street - right onto Wallace Street - turn left onto Dalintober Street - end.


Mon 16th November – Fri 20th November: M8: 8pm to 6am Overnight:
(M74 Jct 1 – M8 Jct 22)

· Total closure of the M74 w/b Jct 1 – M8 w/b Jct 22, M74 n/b – M8 w/b Jct 21, M8 Jct 22/21 on-slips, and Jct 22 link road to M77.

· Leave M74 NB Jct 1 off-slip to Carnoustie Street - Scotland Street - Shields Road - St Andrews Road - Darnley Street - Darnley Road - Titwood Road - Dumbreck Road - Mosspark Boulevard - Paisley Road West - Helen Street - M8 WB Jct 24 on-slip.


Mon 23rd November – Fri 27th November: M8: 8pm to 6am Overnight:
(M8w Jct 12 – 15/M80s Jct 1 – M8 Jct 13)


· Total closure of the M8 westbound between Jct 12 – 15, M80 s/b Jct 1 – M8 w/b Jct 13, Jct 14/12 on-slips, and Jct 15 off-slip to Castle St.

· Leave M8 at Jct 12 - turn left onto A80 Cumbernauld rd - turn right onto A8 Cumbernauld rd - follow onto Alexandra parade - turn right onto Castle st - turn right onto A804 Royston rd - take immediate left onto A803 S/B - rejoin M8 west at Jct 15 loop u on slip - end.

· (M80 s/b Jct 1) - leave M80 at Jct 1 - continue onto Provan rd - turn right onto Cumbernauld rd - turn right onto A8 Cumbernauld rd - follow onto Alexandra parade - turn right onto Castle st - turn right onto A804 Royston rd - take immediate left onto A803 S/B - rejoin M8 west at Jct 15 loop u on slip - end.

· (Jct 14 On from Viewpark Ave) - Continue on Alexandra Park st SB - turn right onto Alexandra parade - turn right onto Castle st - turn right onto A804 Royston rd - take immediate left onto A803 S/B - rejoin M8 west at Jct 15 loop u on slip - end.

· (Jct 15 Off to Castle St) - Leave M8 at Jct 12 - turn left onto A80 Cumbernauld rd - turn right onto A8 Cumbernauld rd - follow onto Alexandra parade - turn right onto Castle st - end.

Works will finish at the end of November and resume in January next year. Dates for this next package of work will be published once the programme is finalised.

Please note, all schemes are weather dependent and may be cancelled or rescheduled if weather conditions are not favourable.

How to get the latest travel and traffic information

For full information on roadworks on trunk roads in the south-west of Scotland, visit the Amey website.

You can report a defect on the network by filling out this form.

Follow Amey South West Trunk Roads on X at @SWTrunkRoads.