CPBJH JV is a joint venture between CPB Contractors and John Holland, two of Australia's biggest, most experienced constructi ... on companies, which is constructing the West Gate Tunnel Project. CPBJH JV has been awarded the Design and Construction contract for the $5.5 billion West Gate Tunnel Project. The project includes the following features: • Widening the West Gate Freeway from eight lanes to 12 between the M80 Ring Road and Williamstown Road; • Building a 2.8km eastbound tunnel and a 4km westbound tunnel under Yarraville; • Constructing a bridge over the Maribyrnong River providing an alternative to the West Gate Bridge; • Constructing an elevated road along Footscray Road to the Port of Melbourne; and • Major new cycling and pedestrian paths. Construction began in 2018 and the project will be completed in 2022. read more