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► N5 Westport to Turlough Road Project

SCHEME LOCATION MAP

The route corridors and study areas shown on this map are for general location purposes only.

They are approximate and do not represent the actual design.


View N5 Westport To Turlough Road Project in a larger map

The proposed N5 road project stretches from northwest of Westport in the townland of Deerpark East to a point East of Castlebar in the townland of Ballyneggin . The design of the proposed N5 mainline is a Type 2 Dual Carriageway with major junctions proposed at the intersection of the N59, existing N5, N84 and N60. The scheme includes:

  • 23.7 Kilometres of Type 2 Dual Carriageway (click here to view photo)
  • 2.1 Kilometres of Type 2 Single Carriageway
  • 0.6 Kilometre taper from Type 2 Dual to existing Single Carriageway
  • 3 compact grade separated junctions including overbridges
  • 6 roundabouts
  • 2 at grade “left in-left out” junctions and 1 all movements at grade junction
  • 1 bridge widening over the Castlebar River
  • 2 rail bridges over the Westport to Manulla Junction railway line
  • 11 overbridges, 2 underbridges and 7 farm underpasses
  • Associated earthworks, diversion of services, realignment of existing roads
  • Construction of accommodation tracks and ancillary works
  • Excavation of peat & unacceptable material, excavation of rock and disposal & recovery of unacceptable material
  • Drainage works, landscaping and diversion of services and ancillary works
















The development of this road project has been identified in the following documents;

  • The National Spatial Strategy
  • The National Development Plan 2007 – 2013
  • Mayo County Development Plan 2008 – 2014
  • The Castlebar and Environs Development Plan 2008 – 2014
  • The Westport Town and Environs Development Plan 2010 – 2016
  • Plans and programmes of the National Roads Authority.

The need for the scheme will be set out in detail in the Design Report and the EIS.

The project is promoted by Mayo County Council (Mayo NRDO) and is in partnership with the National Roads Authority.   Mayo NRDO has appointed Roughan O’Donovan-Faber Maunsell as the consultant engineers for the project.   This project has been funded by the Irish Government under the Department of Transport, Tourism and Sport

The planning and design for N5 Westport to Bohola Road Project Road commenced in 2008.   In 2010 the NRA published the 2010 NRA Project Management Guidelines which outlines the framework for the phased approach to the development, management and delivery of national road schemes.   Although this project preceded these guidelines the project’s development has generally followed this structure which divides the evolution and progression of a project into 7 phases as illustrated below;

The purpose of Phase 1 is to identify the need for a scheme and to establish a Project Management Structure including the appointment of Service Providers, where necessary.   Phase 1 can also include feasibility studies that may be carried out investigating whether a scheme is warranted/necessary.

The purpose of Phase 2 is to identify a suitable Study Area for the examination of alternative routes, to identify key constraints within that Study Area, to develop feasible route options and to carry out a systematic assessment of these options leading to the selection of a Preferred Route Corridor which will form the basis for the detailed design to follow.

The first Public Consultation (PC1) for N5 Westport to Bohola Road Project was undertaken during April 2008 and presented the Constraints Study Area for the proposed project.

The route selection took place when PC2 started on completion of the constraints study and involved the production of a number of route options that had the potential to meet the scheme objectives. The resulting route options were presented at Public Consultation No. 2 (PC2) in September and October 2008.   Following PC2, the information gathered was used to refine the route options and to determine the Emerging Preferred Route.   The Emerging Preferred Route was displayed at Public Consultation No. 3 (PC3) between December 2008 and January 2009.   Further refinement in response to PC3, followed by a further route selection Peer Review, led to the adoption by Mayo County Council of a Preferred Route in March 2009.

Please click on the following links to view the documents

Constraints study Brochure 2008

Route Options Brochure September 2008

Emerging Preferred Route Brochure December 2008

Preferred Route Brochure March 2009

The purpose of Phase 3 is to develop the design of a scheme, following the selection of a Preferred Route Corridor, to a stage where sufficient levels of detail exist to establish land-take requirements and to progress the scheme through the statutory processes. The design may be completed to sufficient detail to identify junction types, locations, accommodation works etc. and to assist in the scoping of the environmental assessments required to develop proposals to go forward to the statutory process in Phase 4.

Following the decision by An Bord Pleanála in 2010 to refuse the N26 Ballina to Bohola Stage 2 Road Scheme a separate study was undertaken to check the validity of the connection point of the N26 and N5.   Based on the conclusions of this study it was decided to terminate the N5 Westport to Bohola Road Project at a point east of Turlough village from where the route may be continued as best suits the future re-evaluation of the N26 connection.   The new scheme resulting from this decision, the N5 Westport to Turlough Road Project is the scheme currently under consideration and for which the design is now complete.

Please click on the following links to view the documents

Overall Map of Scheme     September 2011

Type 2 Dual Carriageway – Typical Layout

Image of Constructed Type 2 Dual Carriageway

The purpose of Phase 4 is to prepare the relevant environmental assessments/reports/statements necessary to confirm that the proposed scheme is in accordance with planning and environmental legislative and procedural requirements.   In tandem with this, the mapping necessary for land acquisition is prepared in accordance with the statutory processes.

The preparation of the Environmental Impact Statement (EIS) is now complete.   The EIS assesses the significant likely effects of the proposed scheme on the environment and proposes mitigation, where necessary, that is incorporated into the Design.   Both the Design and EIS inform the exact land requirements necessary to be included in the Compulsory Purchase Order (CPO).   The CPO process establishes exact land requirements and landowner details and the land acquisition plans are prepared in accordance with the requirements of the CPO Order. The CPO is now complete.

In order that the project potentially advances to Phase 5, 6 and 7 it requires NRA approval to progress thought the statutory process where An Bord Pleanála (ABP) adjudicates on both the CPO and EIS. When this approval is forthcoming Mayo County Council will formally publish the CPO and EIS and submit them to ABP for consideration.

Mayo County Council are legally obliged to inform the landowners and the general public that the CPO and EIS is being submitted to ABP, also indicating the arrangements for inspection of the relevant maps/documents by the public and the submission of observations and/or objections to ABP.   In considering the CPO & EIS, ABP may hold an Oral Hearing. The Oral Hearing provides a public forum for those promoting the road development and for those objecting to the road development to present their views. Evidence will also be presented on what are the significant likely effects the road development will have on the environment.   ABP will fully consider the CPO & EIS, any submissions or objections received and the report of the Inspector conducting the oral hearing before deciding on whether to refuse or approve the proposed road development, with or without modifications.   ABP will decide whether or not the road development will proceed and the decision of ABP must be publicized in at least one newspaper circulating in the area.   If ABP approves the scheme and the statutory period passes to allow it become operative only then does the following apply;

    •  Planning approval for the road development has been granted
    •  MCC has the entitlement to commence the process of land acquisition

If ABP confirms the CPO, Mayo County Council will serve each landowner with a Notice to Treat within 18 months of the confirmation date.   It is only at this stage that negotiation in relation to compensation commences.

Please click on the following links to view the documents

AA Screening Assessment Conclusion

EIA Screening Determination

The CPO documents are available to download from this website.   If you wish to view a hard copy they are also available at various Mayo County Council offices.   Please open the CPO Notice link to observe the office locations and viewing times.

Please click on the following links to view the documents

EIS and NIS Notice published in Papers

 Addendum to EIS and NIS Notice Published in Papers

N5 EIS Volume 4 – Screening Report & NIS

The purpose of Phase 5 is to prepare any Advance Works Contracts and to prepare the tender documentation, assessment of tenders and award of the Main Construction Contract.

In July 2015 a project update leaflet was delivered to all properties within a wide catchment area of the proposed road. A copy of the leaflet can be viewed / downloaded by clicking on the following link:-

N5 Westport To Turlough – Project Update Leaflet – July 2015

The purpose of Phase 6 is to administer the Main Construction Contract and manage the entire Scheme during the Construction and Implementation Phase.

The purpose of Phase 7 is to complete all outstanding contractual and residual issues relating to the Scheme leading to the closeout of the entire project and on the review of the Scheme to ascertain the key lessons to be learned for future Schemes.

If you have any queries or comments to make in relation to the above project, if you require further information or if you wish to make an appointment please contact the following;

Paul Hyland,
A/Senior Executive Engineer,
Mayo National Roads Design Office,
Glenparke House,
The Mall,
Castlebar,
County Mayo

Phone: (094) 9047623
Fax: (094) 9034525
E-mail:  phyland@regdesign.com

Opening hours are from 9 a.m. to 1 p.m. and from 2 p.m. to 5:30 p.m., Monday to Friday. Click here  to view a map showing the office location.


Engineers Ireland Department Of Transport Mayo County Council National Roads Design