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M5 Jcts 19 to 20 Southbound Climbing Lane

M5 Jcts 19 to 20 Southbound Climbing Lane

Status
Completed
Located in
Area 2Map of the Agency's Operational Areas
Scheme type
Programme of Major SchemesRoad Schemes Managed by the Highways Agency

The Project

The scheme was one of a number of measures recommended by the London to the South West and South Wales Multi-Modal Study (the SWARMMS study). Following his consideration of the SWARMMS study, the Secretary of State added the scheme to the Targeted Programme of Improvements (this is now known as the Programme of Major Schemes) on 10 December 2002. The scheme provided a climbing lane on the M5 Naish Hill, between Junction 20 (Clevedon) and Junction 19 (Easton in Gordano and Gordano services). The total length of the scheme was approximately 2.1 miles/3.4 kilometres. All works were carried out within the existing motorway boundary.

This section of the motorway is particularly congested during peak hours and also on summer weekends. The climbing lane introduces a lane gain at the junction 19 southbound on slip continuing southwards to the top of the 3% gradient before tapering back to three lanes from the outside lane on the south side of Naish Hill over bridge. The scheme also includes geotechnical solutions and retaining walls to avoid the need for additional land, bridge modifications and strengthening and provision of new signal gantries. Environmental mitigation measures and improvement works included drainage attenuation facilities to treat runoff from both the new and existing paved areas and improve water quality prior to discharging into local watercourses.

The Early Contractor Involvement (ECI) contact was awarded to Birse Civils Ltd on 6 April 2004.

The Environmental Statement was published on 12 May 2005, and the Secretary of State's decision to proceed with the scheme was issued in August 2005. Works on site started in October 2005. The scheme was opened to traffic within budget on 30 June 2006.

Current Activities

Some closures (predominately hardshoulder) will be required to undertake minor remaining work e.g. planting work. It is not anticipated that this will cause any inconvenience to the travelling public.

Further information can be requested via m5j19-20climbinglanes@highways.gsi.gov.uk or by contacting Louise Brown on 0117 3728945.