In what year was the River Lea constructed as part of the London water supply infrastructure?
London water supply infrastructure London's water supply infrastructure has developed over the centuries in line with the expansion of London. For much of London's history, private companies supplied fresh water to various parts of London from wells, the River Thames and in the three centuries after the construction in 1613 of the New River, the River Lea, which has springs that divert alongside Hertford at an elevation of 40 metres AOD. Further demand prompted new conduits and sources, particularly in the 150 years to 1900 as the Agricultural and Industrial Revolution caused a boom in London's population and housing.
North London Railway The North London Railway (NLR) company had lines connecting the north of London to the East and West India Docks in the east of the city. The main east to west route is now part of London Overground's North London Line. Other NLR lines fell into disuse but were later revived as part of the Docklands Light Railway, and the Overground's East London Line. The company was originally called the East & West India Docks & Birmingham Junction Railway (E&WID&BJR) from its inception in 1850, until 1853. It ceased operations in 1922.