DBFO II Northern Ireland
Project Description
Commissioned by the DRD Roads Service, DBFO 2 is the largest ever highway scheme to be awarded in Northern Ireland and promises to significantly improve the region’s infrastructure. DBFO 2 is a key project within Northern Ireland’s £18 billion investment strategy and aims to improve the road links between Belfast and Dublin and between Belfast and Ballygawley.
The 30-year £250 million roads contract is being delivered by the Amey Lagan Roads Public Private Partnership (PPP) under a design, build, finance and operate agreement. Lagan Construction is delivering the design and construction works, divided into three separate schemes, as part of the Lagan Ferrovial joint venture.
Once construction is complete, Amey Lagan Roads will be responsbile for the operation and maintainance of the entire 125km length of road for 30 years, including maintenance of pavements and structures.
Scheme 1
Involves an upgrade of the existing A1 between Sprucefield and Cloghogue, including the provision of a new outer by-pass of the existing dual carriageway at Newry.
Key aspects of this element of the DBFO2 contract include the construction of 12.1 km of new dual 2 lane all purpose carriageway from Beechhill to Cloghogue. 7.5 km of this route will be constructed ‘off-line’ (i.e. new road) and the remaining 4.6km will be ‘on-line’.
The new 2 lane dual carriageway will require the construction of 20 structures ranging in size from an agricultural underpass to a 190m long viaduct as well as five grade separated junctions, six over bridges and seven underpasses!
Scheme 2
DRD Roads Service identified specific safety improvements that they wished to adopt along the A1 between Sprucefield and Loughbrickland. These improvements included the provision of four grade-separated junctions, 2 overbridges and 2 underpasses, and the closure of central reserve cross-overs in the immediate vicinity of these junctions.
Numerous service diversions were required on both the A1 and the side roads. In addition, the junction improvements will require the upgrading of existing infrastructure including drainage, surfacing, street lighting, signing, fencing, white lining and footways etc
Scheme 3
The improvement work on the A4 involves the realignment and upgrading to Dual 2 Lane All Purpose (D2AP) carriageway of the A4 between Dungannon and Ballygawley.
This upgrade of approximately 20.5km of the A4 between Dungannon and Ballygawley as a partially on-line/partially off-line (14.5 km off-line, 6km on-line) high quality dual carriageway incorporates a number of grade separated junctions, installation of a central median safety barrier and hard shoulders.
Work includes the provision of six grade separated junctions and the construction of 13 over bridges and six underpasses along the line of the proposed scheme. The proposed route will cross seven designated water courses which will be traversed by new bridges.
Further information
For more information please contact us on
T : +44 (0) 28 9045 5531
F : +44 (0) 28 9045 8940
