Temporary Closure of Roads: N21 East and West Bound Lanes

Notice is hereby given, in accordance with the provisions of the Roads Act 1993 of the intention of Limerick City and County Council to close the road as detailed hereunder at the specified locations and times to facilitate the installation of the Drainage, Ducting and Mammal Crossings as part of the Adare Bypass.

Road to be ClosedAlternative RouteTime of Closure

N21 East and West bound lanes from Attyflin Junction 5 (intersection of the M20 with N20) to Junction of the N21 with L1427 

Length of road affected: 3.7km

Diversions via 

N20 to O’Rourke’s Cross, R518/R520 O’Rourke’s Cross to Newcastle West.

Local diversion at L1427 to Patrickswell via the old N21

From 07th October 

to 18th October 2026

From 21:00 to 06:00

[Night-time closure]

  • Access for emergency services will be maintained at all times

Any person may lodge an objection to the proposal to close these roads by email to roads@limerick.ie or in writing to the Administration Team, Central Services, Roads, Limerick City and County Council, Dooradoyle, Limerick not later than 4:00pm, Tuesday 08th September 2026.

Signed: John Sheehan – A/Senior Engineer, Transportation, Mobility and Public Realm, Limerick City and County Council.

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