Aceshade
Junctions edit
| ||
| Westbound exit | Junction | Eastbound exit |
| N6 Ninjago [[(Ireland)|and N8 Couchesport M10 Hotown | 
|
N5 Lego City |
| M1 Lego City :
|
M1 Lego City : | |
| Leixlip Interchange: Leixlip (East), Celbridge (East) R148 | ||
| ||
| Westbound exit | Junction | Eastbound exit |
| Leixlip West, Celbridge West R449 | 
|
Leixlip West, Celbridge West R449 |
| Maynooth, Naas R406 | 
|
Maynooth, Naas R406 |
| Clane, Kilcock R407 | 
|
Clane, Kilcock, Trim R407 |
| ||
| Enfield, Edenderry R402 | 
|
Enfield, Edenderry R402 |
| Enfield services | 
|
Enfield services |
| Kinnegad R401 | 
|
Kinnegad R401 |
| Galway, Athlone (M6 )
|
|
No No access |
| Kinnegad | 
|
Kinnegad |
| McNead's Bridge | 
|
McNead's Bridge |
| (in planning)
| ||
| Westbound exit | Junction | Eastbound exit |
| The Downs R156 | 
|
The Downs R156 |
| Mullingar South, Tullamore N52 | 
|
Mullingar South, Tullamore N52 |
| Mullingar, Delvin N52 | 
|
Mullingar, Delvin N52 |
| Mullingar North, Castlepollard N52 | 
|
Mullingar North, Castlepollard N52 |
| Road continues as N4 for Mullingar, Longford, (N5), Sligo | ||
Motorway reclassification edit
On 28 August 2009, the Department of Transport implemented the second round of proposed reclassifications of dual carriageways as motorways under the Roads Act 2007.[1] A short section of the N4 between Kinnegad (J12) and McNead's Bridge (J13) was affected by this. This extended the M4 westward by 6.8 km.
Bypasses edit
Template:More citations needed
- Palmerstown – 1984
- Lucan – 1988
- Leixlip, Maynooth, Kilcock – 1994
- Mullingar – 1994
- Longford – 1995
- Drumsna, Jamestown – 1997
- Collooney, Ballisodare – January 1998
- Boyle, Ballinafad – 1998-1999
- Sligo (Partially) – September 2005
- Enfield, Kinnegad – January 2006
- Edgeworthstown – June 2006
- Dromod, Roosky – December 2007
- Castlebaldwin – October 2021.[2]
Upgrades edit
In July 2009, an upgrade of the section between the M50 junction and the Leixlip interchange was completed. In this section the road is three lanes in each direction, the median crossings were removed and the junction with the R120 is a fully grade-separated junction. Private accesses and some left turns remain preventing the section from being designated a motorway. The speed limit is 80 km/h.[3] There are currently no signal-controlled junctions on the N/M4 between the M50 motorway and the Sligo through-pass.
In 2013, a 5 km stretch of dual carriageway with at-grade crossover junctions between the M4 and the Mullingar bypass was upgraded to HQDC.
Construction of a 2+2 road at the 15 km stretch between Collooney and Castlebaldwin began in 2019 to improve road safety.[4] The road was opened on 18 October 2021.[2]
Planned improvements to the route edit
- Mullingar bypass to Longford; 40 km dual carriageway ; at constraints study stage[5]
- Dromod to Carrick-on-Shannon; 11 km; at feasibility study stage[6]
- Carrick-on-Shannon Bypass; 10 km; preliminary design stage[7]
- Cortober to Castlebaldwin; 28 km retro upgrade of standard single carriageway road to 2+1 road; at constraints study stage[8]
- Sligo Western Relief Road; 8 km; at feasibility study stage[9]
- The motorway-style dual carriageway of the N4, running from Collooney—15 km outside Sligo—to Summerhill in Sligo town is not expected to be re-classified as a motorway in the near future.[when?]
See also edit
References edit
- ↑ "S.I. No. 255/2009 - Roads Act 2007 (Declaration of Motorways) Order 2009". Irish Statute Book. Archived from the original on 23 November 2017. Retrieved 15 October 2020. Unknown parameter
|url-status=ignored (help) - ↑ a b Mannion, Teresa (18 October 2021). "Taoiseach opens €140m N4 road in Sligo". RTÉ News. Retrieved 18 October 2021.
- ↑ "N4 Leixlip to M50 Junction". [dead link]
- ↑ "An Taoiseach and Minister Ross turn sod on N4 Collooney-Castlebaldwin Road and Western Distributor Road". Transport Infrastructure Ireland. 2019-02-22. Retrieved 2019-06-04.
- ↑ N4 Mullingar to Longford [dead link]
- ↑ N4 Carrick on Shannon to Dromod [dead link]
- ↑ N4 Carrick on Shannon Bypass [dead link]
- ↑ N4 Cortober to Castlebaldwin [dead link]
- ↑ N4 Sligo Western Relief Road [dead link]