Tideway Dormay St site

Our team working on Thames Tideway east has achieved Costain’s prestigious ‘Defining Blue’ status for the whole of 2019.

The award is for exceptional performance over successive quarters in areas including quality, safety, people, health and environment.

Our team, led by operations manager Chris O’Sullivan and labour manager Donatas Jausicas, met the high standards for every quarter of 2019.


We are working for client Costain Vinci Bachy Soletanche JV on the east works package of the Thames Tideway tunnel, from Bermondsey to Stratford.

“This is a tribute to the whole team,” said director Chris Ryan. “Congratulations and thanks to Chris, Donatas, our key influencers Mohammed Hasan and John O’Loughlin, and all our workforce. I’m proud of them all, and delighted that our clients have recognised their hard work.”

Thames Tideway Tunnel Dormay StreetCostain’s supply chain manager emailed: “Thank you for your consistent high performance”.

About Costain Blue

Costain’s Defining Blue Performance initiative scores key metrics, including people, time, quality, safety, health and environment. The ratings are:

  • red – non-compliant
  • amber – compliant
  • green – commendation
  • blue – inspirational.

To achieve blue status, companies must score a minimum of 800 points for two consecutive quarters.

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