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Mallaig Line Improvement work completes

Mallaig Line Improvement work completes

Mallaig Line Improvement work, Lochailort

A £1.8 million programme of work on the Mallaig line completes

We recently completed a £1.8 million programme of work that improves the resilience of the railway on the Mallaig line at Lochailort in the West Highlands

Starting in February of this year, the work delivered by Network Rail and supply chain partner QTS followed on from previous activity undertaken at this location in the summer of 2020 – when severe weather caused flash floods that washed away 80 metres of railway.

The initial phase of the improvement work involved installing a new concrete drainage tunnel, or culvert, next to the existing Allt na Criche bridge that carries the Allt na Criche burn under the railway.

Following the culvert work, a new bund 112 metres in length and up to 2.3 metres in height was then constructed to help to protect the railway and surrounding land from future flooding events.

Project Timeline

  1. 08 February 2022: Site set up and preparatory work.
  2. 08 February to 22 April 2022: Half road closure in place on a section of the A830
  3. 18 March to 22 March 2022: Period of continuous working
  4. July 2022: Work completes

Possible Disruptions

  • Service Alterations

    During the period of continuous working, from Friday 18 to Tuesday 22 March 2022, information on Glasgow to Fort William/Mallaig service alterations will be available via National Rail Enquires at https://nationalrail.co.uk



  • Overnight Work

    In advance of the period of continuous work to install the new drainage tunnel, from 18 to 22 March, there will be several nights of activity in preparation for this.

    We will be working overnight from 12 March up to when the continuous work starts on the 18 March.

    Once the period of continuous work completes on 22 March, there will three further nights of work to allow us to safely demobilise plant and equipment used to install the drainage tunnel.

    Overnight work will take place from Saturday 12 until Friday 25 March 2022, between 23:00hrs and08:00hrs each night.

Why?

The five-month programme will help improve the resilience of the railway and follows on from previous work in this location in the summer of 2020, when severe weather caused flash floods and washed away 80 metres of the Mallaig line.



What will change?

This essential work involves installing a new concrete drainage tunnel, or culvert, next to the existing Allt na Criche bridge that carries Allt na Criche burn under the railway.

Tasks

  1. To safely lift the new culvert into place, this needs to be done by crane when no trains are running.
  2. A new embankment 112 metres in length and ranging between 1 metre to 2.5 metres in height will be built, helping to protect the railway and surrounding land from future flooding events.