Grimshaw has also worked on two new ventilation shaft head houses in Kennington and new cross-passages at Kennington Station. A link from Wimbledon to Sutton was the least popular of the three routes being studied, with less than half of respondents supporting that proposal. [9], The CCE&HR (commonly known as the "Hampstead Tube") was opened in 1907 and ran from Charing Cross (known for many years as Strand) via Euston and Camden Town (where there was a junction) to Golders Green and Highgate (now known as Archway). [citation needed] The connection between Drayton Park and the surface platforms at Finsbury Park was opened in 1976, when the Northern City Line became part of British Rail. Originally, Stanley Heaps was to design the stations, but after seeing these designs Frank Pick, Assistant Joint Manager of the UERL, decided Holden should take over the project.[22]. 'Scandal' of the unfinished 3m Northern line extension from Finsbury With the exception of Morden and Clapham South, where more land was available, the new stations were built on confined corner sites at main road junctions in areas that had been already developed. When the Piccadilly line was extended to Heathrow Airport in the 1970s, its 1959 Stock and 1956 Stock (prototypes of the 1959 Stock) trains were transferred to the Northern line. The new Tramlink line aims to link Sutton town centre with the Northern line Tube at Colliers Wood - and connect Sutton to the existing tram network. Ninety-two per cent of the excavated material was carried in around 700 barge journeys along the River Thames to East Tilbury in Essex where it was used to create arable farmland. Both of these schemes by CLL have been shaped to incorporate sustainability into their design, with air source heat pump energy systems as well as solar panels at Montford Place. These were replaced by 1938 stock as part of the New Works Programme, later supplemented with identical 1949 Stock. Councillor Ravi Govindia, Leader of Wandsworth Council and Co-chair of the Nine Elms Vauxhall Partnership, said: "Travelling on the Northern Line Extension as it opened its doors today, and seeing excited passengers use these stations for the first time, is a once-in-a-lifetime moment that I will never forget. There'll be new lines as well as new stations, Get FREE email updates for everything London Underground. The line taken over would be extended beyond Edgware to Brockley Hill, Elstree South and Bushey Heath with a new depot at Aldenham.