Carillion plc

Bourton Group, 2009

M6 extension puts Lean Sigma on the map

Summary

The A74 between Carlisle and Guards Mill is the "missing link" in the motorway network between London and Glasgow. Stretching 9km, the road carries 42,000 vehicles a day. The scheme to upgrade the dual carriageway to motorway also included two new major structures crossing the River Esk and West Coast Main Line, demolition of the Mossband Viaduct and provision of a new all-purpose road. Having developed an impressive track record with the Highways Agency, Bourton Group was asked to help Carillion deploy Lean Sigma improvement methodology to bring the project in on time and significantly under budget.