The R449 road is a regional road in County Kildare, Ireland. It is just 3 km (1.9 mi) long and was completed in 2003 as part of the construction of a grade separated interchange to connect both West Leixlip and North Celbridge to the M4 motorway at Junction 6.

This article includes a list of general references, but it lacks sufficient corresponding inline citations. (December 2021)

Quick Facts Route information, Length ...

R449 road
Bóthar R449
Route information
Length	2.9 km (1.8 mi)
Major junctions
From	R148 Collinstown
Major intersections	M4 Junction 6
To	R405 Crodaun
Location
Country	Ireland
Highway system
Roads in Ireland Motorways Primary Secondary Regional

Close

The 2 km section between Leixlip and the M4 is dual-carriageway. The speed limit along this section is 60 km/h, despite joining an 80 km/h road with 120 km/h road, via a dual carriageway.

The road crosses the Dublin to Sligo railway line and the Royal Canal. The bridge on which it crosses collapsed during construction, blocking the railway line for a time.^[1]

North to south the road leaves the R148 regional road (formerly the N4 national primary road until the opening of the M4), crosses the M4 and terminates at the R405 north of Celbridge.

• Roads in Ireland
• National primary road
• National secondary road