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M4 motorway
M4 motorway
Mótarbhealach M4
Route information
Length	62 km (39 mi)
Existed	1994–present
History	Completed 1994–2006
Component; highways
Major junctions
From	Lucan
To	Kinnegad
Location
Country	Ireland
Primary; destinations	Leixlip, Kilcock, Enfield
Highway system
	Roads in Ireland; Motorways; Primary; Secondary; Regional;

N4 road
N4 road
Bóthar N4
Route information
Length	198.21 km (123.16 mi)
Location
Country	Ireland
Primary; destinations	(bypassed routes in italics) County Dublin Dublin (M50); Lucan; ; County Kildare Leixlip; Maynooth; Kilcock; ; County Meath Enfield; Clonard; ; County Westmeath Kinnegad (M6 to Galway); Mullingar (N52); Ballinalack; Rathowen; ; County Longford Edgeworthstown (N55); Longford Town (N5 to Westport, N63); Newtownforbes; ; County Leitrim Roosky; Dromod; Aghamore; Drumsna; Jamestown; Carrick-on-Shannon (R280); ; County Roscommon Boyle (N61); ; County Sligo Ballinafad; Castlebaldwin; Collooney (N17); Ballysadare (N59); Sligo town (N15, N16); ;
Highway system
	Roads in Ireland; Motorways; Primary; Secondary; Regional;

The N4 road is a national primary road in Ireland, running from Dublin to the northwest of Ireland and Sligo town. The M6 to Galway diverges from this route after Kinnegad, while the N5 to Westport diverges at Longford town. Most sections of the N4 that are motorway-standard are designated the M4 motorway.

Road standard

The N4 originates at an intersection with the M50 motorway at Junction 7. This is also Junction 1 of the N/M4. The Liffey Valley Shopping Centre is located at Junction 2. The road has three lanes and a bus lane in each direction between the M50 and Junction 5 which is also the start of the M4 motorway at Leixlip.

The N4 was the only one of the main inter-urban national routes whose dual-carriageway section continued into the city centre; however, the section inside the M50 was re-classified as the R148 in 2012.^[1]

Heading west, the PPP motorway section (see below) ends west of Kinnegad, and the motorway terminates 5 km further west; it continues as HQDC and bypasses Mullingar. From the Mullingar bypass to Edgeworthstown, the road is a wide single-carriageway with hard shoulders. Between Edgeworthstown and Longford, there is a lower standard single-carriageway road. Between Longford and Rooskey single carriageway continues at a higher standard. Dromod and Rooskey were bypassed in late 2007. This section of the road consists of three roundabouts and a Type 2 dual carriageway, i.e.: two lanes in each direction and no hard shoulder. The road resumes as a single carriageway with hard shoulders until it reaches Carrick-on-Shannon, where it becomes a local urban road through five roundabouts, and passes over the River Shannon into County Roscommon. The road becomes a high-quality single carriageway bypass 3 km outside of Boyle town, with periodic alternating overtaking lanes passing Lough Key Forest Park and Ballinafad until it reaches Castlebaldwin. From Castlebaldwin to Collooney the road is a Type 2 dual carriageway. Funding for the expansion of this section was announced in October 2018, and it opened in 2021. ^[2] The road becomes near-motorway standard dual carriageway again at Collooney, approaching Sligo town.

M4 motorway

The section from Leixlip to the west of Kinnegad is the M4 motorway. The first section of this motorway (Leixlip – Kilcock) was opened on 19 December 1994.^{[citation needed]}

Tolled section of the M4 motorway

Under the Government announcement of the pilot projects on 1 June 1999 this project was to be assessed by the NRA for its suitability to be advanced as a Public-private partnership (PPP). Subsequently, the project was included as one of the projects approved under Tranche II of the PPP Roads programme as announced by the NRA in June 2000. The project involved the construction of 39 km of motorway from Kinnegad to Kilcock and is an extension of the Kilcock-Maynooth-Leixlip motorway on the N4/N6 Sligo/Galway to Dublin route. The motorway bypasses the towns of Enfield and Kinnegad.^{[citation needed]}

The PPP contract was awarded in March 2003 to the EuroLink Consortium (SIAC Construction Ltd and Cintra - Concesiones de Infraestructuras de Transporte S.A.) and allows for them to collect tolls for 30 years from that date.

This tolled section (from Kilcock to Kinnegad) opened on 12 December 2005, almost a year ahead of schedule.^[3] It is the second-most expensive toll road in Ireland (after the Dublin Port Tunnel). A toll of €3.40 (as of 2024) for cars is charged at a toll plaza just west of Kilcock and at smaller toll plazas at on and off-ramps at Enfield.^[4] Between Enfield and Kinnegad, no further access to the M4 is possible.

Eurolink operates this tolling scheme, the first in Ireland not operated by NTR plc. From 2005 to 2007, Eurolink started to accept several tags issued by other motorways such as M1, M8, eTrip and Dublin Port Tunnel tags.^{[citation needed]} On 14 June 2007 NTR plc joined the Nationwide Electronic Toll Payment System introducing their popular EazyPass tags on the system and allowing all other toll plazas in the country (different from those owned by NTR plc) to accept them,^[5] meaning that each toll company's electronic tag will work on all toll roads in the State.

In the 1 July 2006 edition of the Meath Chronicle it was claimed that up to 10% of the €420 million road project had "to be ripped up and replaced" shortly after it opened due to rushed construction,^{[citation needed]} however this cost would have had to be carried by the toll operators, not the state, as per the contract.

The bypassed former N4 road has been reclassified as the R148.

Motorway reclassification

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.^[6] 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.

Junctions

The route begins as a dual carriageway at junction 7 of the M50, becoming a motorway after junction 5. It then becomes a dual carriageway after junction 13. After Mullingar, it becomes a regular national road.

County	Junction	Destinations	Notes
County Dublin
	1	M50 – Dublin Airport, Dublin Port, Dún Laoghaire	Continues as R148 towards Dublin city centre and Palmerstown.
	2	R113 ‒ Fonthill, Liffey Valley
	2a	Ballyowen Lane	Westbound exit only. Exit lane runs parallel to mainline, ending at slip road at junction 3.
	3	R136 – Ballyowen, Lucan
	4	R120 – Lucan, Adamstown
	4a	L 1018 – Dodsboro, Kew Park	Only Dodsboro is signposted on eastbound approach. Exit lane runs parallel to mainline, ending at slip road at junction 5.
	5	R148 – Celbridge, Leixlip (westbound)	Heading eastbound, both destinations are followed by the (East) cardinal direction. Continues as M4 motorway.
County Kildare
	6	R449 ‒ Celbridge (West), Leixlip (West)	Dunboyne
	7	R406 ‒ Maynooth, Naas	Straffan
	8	R148 ‒ Kilcock R407 – Clane	Enfield, Trim
	M4 Toll
	9	R402 ‒ Edenderry, Enfield	Toll at westbound entrance and eastbound exit slip roads.
County Kildare	Enfield Service Area
County Meath	10	R401 ‒ Kinnegad
County Westmeath	11	M6 ‒ Galway, Athlone	Tullamore (N52)
	12	R148 ‒ Kinnegad, Galway (M6)	Westbound entrance and eastbound exit only.
	13	L 1025 ‒ Coralstown	LILO junction. Continues as N4 dual carriageway.
	14	R156 ‒ Killucan, The Downs
		L 5720	LILO junction. Westbound entrance and eastbound exit only.
	15	N52 ‒ Tullamore, Mullingar (East)
	16	N52 ‒ Dundalk, Mullingar (Centre)
	17	R394 ‒ Castlepollard, Mullingar (West)	Mullingar Hospital Continues as N4 regular national road.
1.000 mi = 1.609 km; 1.000 km = 0.621 mi Incomplete access Tolled Route transition

Bypasses

Palmerstown – 1984
Lucan – 1988
Leixlip, Maynooth, Kilcock – 1994
Mullingar – 1994
Longford – 1995
Drumsna, Jamestown – 1997
Collooney, Ballisodare – January 1998
Boyle, Ballinafad – 1998–1999
Sligo (partial) – September 2005
Enfield, Kinnegad – December 2005^[3]
Edgeworthstown – June 2006
Dromod, Roosky – December 2007
Castlebaldwin – August 2021^[7]^[8]

Upgrades

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 which prevents the section from being designated a motorway. The speed limit is 80 km/h.^[9] 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.^[10] The road was opened on 18 October 2021.^[7]

Planned improvements to the route

N4 between Kinnegad and Mullingar; former N4 (now R148) in left of the picture. (This section was redesignated as a motorway in August 2009)

Mullingar to Longford; 40 km dual carriageway, including bypass of Longford Town. As of November 2023, route corridor options have been presented, awaiting a decision on the preferred route corridor.^[11]
Dromod to Carrick-on-Shannon 21 km, including 10 km bypass of Carrick-on-Shannon. At planning stage, as of November 2023.^[12]

References

^ Book (eISB), electronic Irish Statute. "electronic Irish Statute Book (eISB)". www.irishstatutebook.ie. Archived from the original on 7 March 2016. Retrieved 4 June 2019.
^ "#Budget19 Live: The main points from today's budget". IrishExaminer.ie. 9 October 2018. Archived from the original on 9 October 2018. Retrieved 9 October 2018.
^ ^a ^b Cassidy, Luke (12 December 2005). "Kilcock–Kinnegad road opens ahead of schedule". The Irish Times. Retrieved 14 September 2022.
^ "Tolls applicable for 2023 - M4 Kilcock - Enfield - Kinnegad Motorway". Transport Infrastructure Ireland. Retrieved 3 June 2024.
^ "Press Releases - National Roads Authority". Archived from the original on 18 November 2007. Retrieved 11 February 2008.
^ "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.
^ ^a ^b Mannion, Teresa (18 October 2021). "Taoiseach opens €140m N4 road in Sligo". RTÉ News. Retrieved 18 October 2021.
^ Gallagher, Emma (24 August 2021). "Bittersweet day as new N4 dual carriageway finally opens". The Sligo Champion.
^ "N4 Leixlip to M50 Junction". ^{[permanent dead link‍]}
^ "An Taoiseach and Minister Ross turn sod on N4 Collooney-Castlebaldwin Road and Western Distributor Road". Transport Infrastructure Ireland. 22 February 2019. Retrieved 4 June 2019.
^ [1]
^ [2]

Sources

[1] Book (eISB), electronic Irish Statute. "electronic Irish Statute Book (eISB)". www.irishstatutebook.ie. Archived from the original on 7 March 2016. Retrieved 4 June 2019.

[2] "#Budget19 Live: The main points from today's budget". IrishExaminer.ie. 9 October 2018. Archived from the original on 9 October 2018. Retrieved 9 October 2018.

[Kilcock_to_Kinnegad-3] Cassidy, Luke (12 December 2005). "Kilcock–Kinnegad road opens ahead of schedule". The Irish Times. Retrieved 14 September 2022.

[4] "Tolls applicable for 2023 - M4 Kilcock - Enfield - Kinnegad Motorway". Transport Infrastructure Ireland. Retrieved 3 June 2024.

[5] "Press Releases - National Roads Authority". Archived from the original on 18 November 2007. Retrieved 11 February 2008.

[6] "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.

[RTE2-20211018-7] Mannion, Teresa (18 October 2021). "Taoiseach opens €140m N4 road in Sligo". RTÉ News. Retrieved 18 October 2021.

[8] Gallagher, Emma (24 August 2021). "Bittersweet day as new N4 dual carriageway finally opens". The Sligo Champion.

[9] "N4 Leixlip to M50 Junction". ^{[permanent dead link‍]}

[10] "An Taoiseach and Minister Ross turn sod on N4 Collooney-Castlebaldwin Road and Western Distributor Road". Transport Infrastructure Ireland. 22 February 2019. Retrieved 4 June 2019.

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PROFILPELAJAR.COM

N4 road (Ireland)

Road standard

M4 motorway

Tolled section of the M4 motorway

Motorway reclassification

Junctions

Bypasses

Upgrades

Planned improvements to the route

See also

References

Sources

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