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Successful collaboration on challenging drainage scheme

Close collaboration between the teams at AmcoGiffen and QTS was in evidence last weekend when the combined team successfully brought to a conclusion a challenging drainage project at Severn Tunnel.  

Following emergency works at Christmas, AmcoGiffen and QTS developed a programme to deliver drainage repairs and maintenance to the existing Severn tunnel drainage system, improvement and enhancement works were carried out over a 9 day blockade during the Easter period

Taking into account the challenging constraints of keeping everyone safe from Covid-19, works were undertaken around the clock for 9 days.

Planned works involved

  • 5 chambers completely rebuilt
  • 21 flowforge cage installations
  • 9 chambers increased height
  • 26T of ballast jetted and vacuumed
  • Use of RRV’s to carry an additional 8000 litres of water
  • Efficient use of RRV’s to remove ballast and debris

Network Rail Capital Delivery Programme Manager, Chris Howchin stated

“The hard work, collaboration and dedication by the team have been fantastic, taking issues head on each time, safely and with each other’s health as a priority.  Thank you the entire team on site and the back round making this a success.  please also pass on my thanks and appreciation to the teams and suppliers accordingly.  These are tough times and they’ve all excelled themselves.  To also show their recognition to the key workers outside the tunnel on Thursday was Incredible, very proud times indeed

Network Rail Works Delivery Manager, Richard Rawson expressed his appreciation:

Many thanks to all teams for hard work and dedication in extreme conditions this week

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