Tunnel Management Building, Dunkettle, Co. Cork
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The Jack Lynch Tunnel

The Jack Lynch Tunnel is an immersed tube tunnel and an integral part of the N40 southern ring road of Cork. The Tunnel is named after former Taoiseach, Jack Lynch, a native of Cork.

It takes the road under the River Lee. North of the Tunnel, the ring-road joins the M8 motorway to Dublin (north) and N8 road to the city centre (west), with the N25 commencing east to Waterford.

There are six emergency exits in each traffic bore for pedestrians that lead into the central bore (pedestrian exit), the exit doors are at each end of the central bore.

Tunnel Information

Next Tunnel Closure Dates

Friday 23rd October | 21:00 – 01:00 Full Closure

Friday 23rd October 01:00 to Tuesday 27th October 02:00 Contra Flow

Tuesday 27th October | 02:00 – 04:00 Full Closure

Traffic Cameras, Closures & Safety Information

View safety information, live traffic feeds and scheduled maintenance.

View Cameras

View live traffic feed and information from the Jack Lynch Tunnel Traffic Camera Feeds section
Traffic Cameras

Closures Information

View the latest information on all upcoming Scheduled Maintenance Closures for the Jack Lynch Tunnel
Tunnel Closures

Safety Information

Safety information, before entering the tunnel, accident and emergency and vehicle fire information
Safety Information
Frequently Asked Questions
What do I do if I breakdown?
There are a number of SOS phones located at 50 meter intervals through Jack Lynch Tunnel. These phones provide a direct link to our Tunnel Control Room which will provide assistance.
What is the height of Jack Lynch Tunnel?
The maximum height of Jack Lynch Tunnel is 4.65 meters.
Are pedestrians and cyclists permitted in Jack Lynch Tunnel?
No, pedestrians and cyclists are strictly not permitted in Jack Lynch Tunnel.
What is the speed limit through Jack Lynch Tunnel?
The speed limit is 80kph through Jack Lynch Tunnel.
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