London Underground (LU) has confirmed that the funding package is in place to allow construction of a GBP284.4m extension of the Metropolitan line to Watford Junction to begin in 2016, for completion in 2020.
The link involves the diversion of the Metropolitan line from its current Watford terminus to serve two new stations at Cassiobridge and Watford Vicarage Road – providing new connections to Watford General Hospital and the Health Campus, Croxley Business Park and Cardiff Road Industrial Estate – before joining the current London Overground route south of Watford High Street.
The Underground will then connect to the West Coast Mainline via Watford Junction station, with trains operating every ten minutes at peak times. Watford Metropolitan station will close, but will be retained as sidings.
The full funding package has been agreed between the UK Department for Transport, Hertfordshire County Council and Transport for London. The project is to be delivered by London Underground. Hertfordshire Local Enterprise Partnership has committed GBP87.85m, 40% of its total Growth Deal funding from the UK Government.
The project was previously known as the Croxley Rail Link and had been managed by Hertfordshire County Council before London Underground took over project management in March 2015.