N31
| N31 | ||||
| Location Map ( geo) | ||||
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| From: | Murphystown (O195290) | |||
| To: | Dún Laoghaire (O240288) | |||
| Distance: | 7.1 km (4.4 miles) | |||
| Meets: | M50, N11, R118, R113, R119 | |||
| Highway Authorities | ||||
| Traditional Counties | ||||
| Route outline (key) | ||||
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The N31 is the main road connecting the former ferry terminal at Dun Laoghaire to the M50 and the rest of the Irish road network.
It runs along the seafront at Dun Laoghaire, on a route which was built in the 1930s to relieve what is now known as the R119. It moves onto a 1980s bypass of Blackrock, and then runs straight up the leafy Mount Merrion Avenue, where it takes a break to kick off the N11.
The N31 re-emerges to carry the N11's through traffic, joining the well-aligned Brewery Road. It passes under the new Luas flyover, before taking a final run up the large dual carriageway to Sandyford.
The road through Dun Laoghaire was made one-way in 2020, as part of the coastal cycle lane. This means the N31 can now only be completed (by car) in one direction. As the ferry terminal has closed, this isn't very disruptive, but it does put the national road in an unusual position.
Links
- RTÉ Archives: Blackrock By-Pass 24.03.1988 (archive.org)
