Drivers, cyclists and pedestrians should allow extra time this week as roadworks and temporary traffic controls affect several routes across Dún Laoghaire-Rathdown. This Dublin news update covers planned restrictions and closures in place from 5 to 11 September 2026, based on information issued by Dún Laoghaire-Rathdown County Council.
Dublin roadworks to watch this week
The most significant ongoing measure is the temporary one-way arrangement on Mounttown Road Lower in Dún Laoghaire. Northbound traffic can travel from Kill Avenue towards York Road, while southbound motorists must use signed diversion routes. The arrangement forms part of the Dún Laoghaire Central Active Travel Scheme, which is expected to be completed by the end of October.
A temporary 50 km/h speed limit also remains on the westbound Wyattville Link Road between Cherrywood Avenue and the Cherrywood M50 southbound slip road. The restriction supports construction of the Wyattville Link Road underpass and is scheduled to remain until 30 November, or until the works finish earlier.
- Brides Glen Road in Shankill remains closed until 26 September for watermain installation.
- Glenamuck Road remains closed between Brambledown and the Enniskerry Road junction, with local and pedestrian access maintained.
- Barnaslingan Lane is permanently closed to through traffic at the Glenamuck Link Distributor Road, although walking and cycling access remains available.
Local closures and temporary traffic controls
Ballybrack Road between Glencullen Adventure Park and Zipit, Tibradden, will close briefly on Thursday, 10 September, from 7pm to 8pm for a fundraising 5km road race. Access to both attractions will remain available.
Short-term works are also planned in areas including Deansgrange, Churchtown, Mount Merrion, Blackrock, Roebuck, Sandyford, Stillorgan, Dundrum, Rathfarnham, Glasthule and Kilternan. Drivers may encounter Stop/Go systems, temporary traffic lights, lane restrictions and signed diversions. Works include ducting, utility repairs, watermain improvements, wastewater works and road reinstatement.
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Active travel and school-zone projects
Construction continues on the Dodder Greenway – Ely’s Arch Project. Dodder Road Lower is now permanently one-way westbound from Orwell Road towards Ely’s Arch, with traffic management and diversions operating where required.
Safe Routes to School works are substantially complete at Holy Cross National School in Dundrum, Carysfort National School in Blackrock and Holy Family National School in Monkstown. At The Harold School, temporary traffic lights are operating while existing signals are switched off. Pedestrian access remains available, but delays are possible.
The council is also proposing a signal-controlled pedestrian crossing at the N11 Cornelscourt junction. The scheme includes updated signals, road markings, kerbs, footpaths, tactile paving and signage, with the aim of improving safety and access to public transport.
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What road users should do
Plan journeys before setting out, particularly during peak travel periods. Follow temporary signs, obey traffic controllers and allow additional time near active works. Emergency repairs cannot be predicted, so conditions may change without notice.
Key takeaway
This Dublin news briefing highlights a busy week for roads across Dún Laoghaire-Rathdown, with active travel construction, utility works and local closures affecting several important routes. Checking diversions in advance and travelling cautiously will help reduce delays and improve safety for everyone.
