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► N59 Westport to Mulranny 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 N59 Westport To Mulranny in a larger map

The proposed N59 Westport to Mulranny road project stretches from north of Westport in the townland of Deerpark East to east of Mulranny Village at Murrevagh Townland. The design of the proposed N59 mainline is a Type 3 Single Carriageway (6.0m carriageway road with 0.5m hard strips and verges of approximately 2.0m to 3.0m).

The length of the N59 road project is 21.3km, of which 1.6km are proposed as off‐line sections at two locations, Rossow Bends and Barleyhill.

The N59 Westport to Mulranny includes enhancements to the existing Great Western Greenway by the removal of two at‐grade crossings (at Kilmeena and Kiltarnaght) of the cycle and walkway route and the construction of an underpass, an overbridge and 3.2km of cycleway typically 2.5m wide alongside the improved N59.

The road project is divided into three sections –

  • Section A: Mulranny to Knockbreaga (8.0km),
  • Section B: Knockbreaga to Newport (6.4km)
  • Section C: Corragaun to Westport (6.8km);



The scheme includes:

  • Improvement of 55 sideroad junctions
  • 31 road closures / junction realignments
  • The widening of 5 existing bridges
  • The construction of 4 new bridge structures
  • The widening of 13 existing culverts
  • The construction of 5 new culverts
  • Construction of tourist lay-bys at scenic  areas
  • Associated earthworks, drainage, landscaping and diversion of services











On the 2nd July, 2012 An Bord Pleanála confirmed the Compulsory Purchase Order for the N59 Westport to Mulranny Road Project.

The project is promoted by Mayo County Council (Mayo NRDO) and is in partnership with the National Roads Authority.

This project has been funded by the Irish Government under the Department of Transport, Tourism and Sport.

The planning and design for N59 Westport to Mulranny Road Project Road commenced in 2009. 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 for N59 Westport to Mulranny Road Project was undertaken during June – July 2010 and presented the Project Corridor for the proposed project.

A Route Options Public Display was undertaken December 2010 – January 2011. The road was divided into seven sections. Sections 1, 3, 4 and 6 were online alignments with no alternative alignments proposed. Sections 2, 5 and 7 were offline sections and route options were proposed for these sections of the proposed road project.

Following the Route Options Public Display, the information gathered was used to refine the route options and to determine the Emerging Preferred Route. The Emerging Preferred Route was publically displayed between April and May 2011.

Please click on the following links to view the documents:-

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 on the Emerging Preferred Route, a Preliminary Design of the N59 Westport to Mulranny Road was developed.

In the meantime two sections of the road were constructed as early delivery sections:-

    1. Knockbreaga, a 1.0km online section by Mayo County Council’s Road Design Section
    2. Kilbride, a 2.8km online section by Mayo National Roads Design Office, which incorporated 1.9km of the remaining length of the Great Western Greenway from Westport to Newport.

The N59 Westport to Mulranny road project is now referred to in terms of Sections A, B and C as follows:

  Section Approx Length Comment
A – Mulranny – Knockbreaga 8km Online
(Knockbreaga 2011/2012)  1km  Constructed
B – Knockbreaga – Newport 6.45km Online
(Kilbride 2011/2012) 2.8km Constructed
C – Kilbride – Westport 6.85km Mostly online, two offline sections:-

  • Rossow 0.6km;
  • Barleyhill 1.0km.

Please click on the following links to view the Preliminary Design Drawings:-

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.

Mayo County Council proposes to construct a cycling and walking greenway in the townland of Carrowkeel (ED Newport) in the Burrishoole area. The greenway is proposed to run parallel on or adjacent to the local road. Currently, the Great Western Greenway runs on this public road and the lack of demarcation between the greenway and the public road is a safety issue for pedestrian and vehicle movement. The Habitats Directive Screening Assessment (Appropriate Assessment Screening) was carried out by Mayo County Council to assess if the proposed project, individually or in combination with other plans or projects, is likely to have a significant effect on a Natura 2000 site, in view of the site’s conservation objectives.

Mayo County Council having considered the Habitats Directive Screening Assessment Report determined on 5th September 2013 that the Burrishoole Greenway, individually or in combination with other plans or projects, would not be likely to have a significant effect on a European site on the basis of objective information.

In the planning of the road scheme environmental issues were considered at the project corridor stage, at the route options stage, and at the selection of the preferred route. Environmental assessments were undertaken at each of these stages in the planning of this road scheme and the various environmental reports informed the development of the preliminary design.

There are six Natura 2000 sites situated within 10km of the proposed road corridor. These are Special Areas of Conservation (SACs) and Special Protection Areas (SPAs) as designated under the EU Habitats Directive (92/43/EEC) and the EU Birds Directive (2009/147/EC), respectively. There are a further fourteen Natural Heritage Areas (NHAs) and proposed Natural Heritage Areas (pNHAs) within 10km of the study area. On consideration of each of these sites, their proximity to the proposed road corridor and the impact on their qualifying features only four sites were considered in the environmental assessments of the proposed road corridor. The remainder of the designated sites are not expected to be impacted by the scheme and therefore were not considered further.  The designated sites in the vicinity of the proposed works considered in the environmental assessments were the Natura 2000 sites of the Clew Bay Complex SAC, the Newport River SAC, the Owenduff/Nephin Complex SAC / SPA and the proposed Natural Heritage Area of Coolbarreen Lough pNHA.

On foot of the proximity of the Natura 2000 sites an Appropriate Assessment (AA) Screening Report was commissioned by Mayo National Roads Design Office (Mayo NRDO) at Phase 2 Route Selection. Mayo County Council having considered the Appropriate Assessment Screening Report concluded on February 18, 2011 that since the impacts of all aspects of the project were not known at that stage, all surveys necessary to assess the impacts on the qualifying habitats and species of the effected Natura 2000 sites would be conducted and that due to this uncertainty, a Stage 2 ‘Appropriate Assessment’, Natura Impact Statement, was considered necessary. The Natura Impact Statement was completed in August 2011.

In conjunction with the Natura Impact Statement, Mayo National Roads Design Office conducted the screening for an Environmental Impact Assessment (EIA) and the Environmental Impact Assessment Screening Report was completed in August 2011.

Mayo County Council having considered the Environmental Impact Assessment Screening Report determined on August 26, 2011 that the N59 Westport to Mulranny Road Project did not require an Environmental Impact Assessment.

A number of environmental consultants were commissioned by Mayo National Roads Design Office on behalf of Mayo County Council to carry out environmental assessments of the N59 Westport to Mulranny Road Project.  The environmental issues were assessed to inform Mayo National Roads Design Office of the impacts of the road scheme and these assessments along with surveys and investigations were used to formulate the conclusions to the previous mentioned reports. The findings and recommendations from these assessments, surveys and investigations were used in the preparation of the design, the Natura Impact Statement, Part XI/Part 8 Plans & Particulars and the CPO Deposit Maps.

As Mayo County Council determined that the N59 Westport to Mulranny Road Project did not require an EIA it was necessary to seek consent from the Local Authority for the road project. This was done through the Part XI/Part 8 Planning Process.  On August 30, 2011 the Part XI/Part 8 was published in accordance with Part XI/Part 8 of the Planning and Development Regulations, 2001. The Part XI/Part 8 Plans indicated all lands that were deemed necessary at that time for the construction of the N59 Westport to Mulranny Road Project including Potential Recovery Areas and also included a Part XI/Part 8 planning boundary (shaded orange) within which the lands required for the CPO are contained. As Mayo County Council was the competent authority for Appropriate Assessment at this time the Natura Impact Statement (NIS) was published with the Part XI/Part 8 Plans and Particulars. The Part XI/Part 8 and Natura Impact Statement were approved by Mayo County Council on November 14, 2011.

Subsequent to the publication of the Part XI/Part 8 and Natura Impact Statement in August 2011, Section 57 of the Planning and Development (Amendment) Act, 2010, which inserted a new Part XAB into the Planning and Development Act, 2000, was commenced on the 21st of September, 2011. Section 177AE of the new Part XAB creates a new consent procedure in respect of local authority development for which significant effects on a European site cannot be excluded. The transitional arrangements regarding Section 177AE state that Section 177AE shall not apply to development in respect of which the procedures under Part XI/Part 8 have been completed prior to the coming into operation of Section 57 (i.e. on the 21st of September, 2011) provided that the development is commenced not later than 12 months after such coming into operation. As the Part XI/Part 8 procedure for the N59 Westport to Mulranny Road Project had not been completed as of the 21st of September, 2011, and given that Mayo County Council had previously determined that significant effects on a European site could not be excluded, it was necessary for Mayo County Council to apply to An Bord Pleanála for approval for the local authority development under Section 177AE of the Planning and Development Act, 2000. As such the NIS was re-published with the Compulsory Purchase Order (CPO) on December 27, 2011 and forwarded together with the CPO and the Deposit Maps to An Bord Pleanála for a determination relating to the Natura Impact Statement and confirmation of the CPO.

On the 2nd July, 2012 An Bord Pleanála confirmed the Compulsory Purchase Order and approved the Natura Impact Statement for the N59 Westport to Mulranny Road Project.

The CPO Confirmation Notice was published on July 30, 2012 with the CPO becoming operative on August 21, 2012.

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.

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;

Patrick Staunton,
Project Engineer,
Mayo National Roads Design Office,
Mayo County Council,
Glenparke House,
The Mall,
Castlebar,
County Mayo

Phone: (094) 9047634
Fax: (094) 9034525
E-mail:  pstaunton@regdesign.com

Opening hours are from 9 a.m. to 1 p.m. and from 2 p.m. to 5 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