Drivers, cyclists and pedestrians in south Dublin should plan ahead this week as several road closures, diversions and construction projects affect journeys across Dún Laoghaire-Rathdown. This Dublin news update covers the main restrictions scheduled between Saturday 26 September and Friday 2 October 2026.
The county council said the information reflects notices received by 4pm on Thursday 24 September. Emergency works may still be introduced at short notice, so road users should allow extra time and follow diversion signs.
Dublin news: key closures and diversions
Bride’s Glen Road, Shankill
The closure of Bride’s Glen Road between Rathmichael Road and Mullinastill Road has been extended until 28 November 2026. The restriction is linked to Uisce Éireann’s installation of a large-diameter watermain. Signed diversion routes are available.
Killiney Hill Road
Killiney Hill Road will close between Victoria Road and Military Road from 29 September to 1 October, operating daily from 8am until 6pm. Gas network works are responsible for the closure. Local and pedestrian access will remain available.
Mounttown Road Lower
A temporary one-way system continues on Mounttown Road Lower as part of the Dún Laoghaire Central Active Travel Scheme. Northbound traffic can travel from Kill Avenue towards York Road, while southbound motorists must use signed alternatives. The arrangement is expected to remain until 30 October.
Wyattville Link Road
The westbound section between Cherrywood Avenue and the M50 southbound on-slip remains closed until 30 November. The restriction supports construction of the Wyattville Link Road underpass under the Beckett Link Road Project.
Roadworks across Blackrock, Dundrum and Dún Laoghaire
Short-term works will affect a number of local roads:
- Blackrock: rehabilitation works are planned around Sydney Avenue, George’s Avenue and Frascati Park Road, with water connection works at Belclare, Newtownpark Avenue.
- Dundrum: Sandyford Road and Mulvey Park Road will have reinstatement works, while night resurfacing continues on Nutgrove Way until 7 October.
- Dún Laoghaire: smart sign poles will be installed along Cumberland Street, York Road and Clarence Street, with two-way traffic maintained.
- Glenageary and Dalkey: temporary restrictions may apply at Dundela Park, Arnold Park, St Begnet’s Villas and Hillside.
- Shankill: works are scheduled on Clanmawr, Shanganagh Cliffs and Quinn’s Road, potentially using Stop/Go controls.
- Foxrock and Leopardstown: road narrowing is expected on Leopardstown Road, Mount Eagle Drive and Mount Eagle Green.
Active travel and school projects
Construction continues on the Dún Laoghaire Central Active Travel Scheme, which is expected to become fully operational by the end of October. Work also continues at Orwell Road and Dodder Road Lower for the Dodder Greenway’s Ely’s Arch Project.
Finishing work is taking place at Holy Cross NS in Dundrum, Carysfort National School in Blackrock, Holy Family National School in Monkstown and The Harold School in Glasthule. Only limited disruption is expected.
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Explore more
Residents can also explore Dublin transport and local authority updates for practical information affecting daily travel.
What road users should do
- Check diversion signs before starting a journey.
- Allow additional travel time, particularly during peak hours.
- Use extra caution near resurfacing, excavation and school works.
- Check the council’s traffic updates page for late changes or emergency works.
Conclusion
This Dublin news briefing highlights the main closures and traffic measures affecting Dún Laoghaire-Rathdown during the week ahead. Checking routes in advance and following temporary signs will help drivers, cyclists and pedestrians travel more safely while essential infrastructure and active travel projects continue.
