page_title: 400 kV Thames Crossing
hierarchical_section_title: 400 kV Thames Crossing
caption_attribution_description: Mudflats on the River Thames in the United Kingdom. The 400 kV Thames Crossing, shown in the background, is an overhead power line crossing of the river near West Thurrock. The towers are the tallest electrical pylons in the UK.
context_page_description: The 400 kV Thames Crossing is an overhead power line crossing of the River Thames, between Botany Marshes in Swanscombe, Kent, and West Thurrock, Essex, England. Its towers are the tallest electricity pylons in the UK.
  The present crossing was built in 1965, and comprises two 190-metre tall lattice towers each side of the Thames. Some suggest that the choice of this height was deliberate, being just taller than the BT Tower in London. The span is 1372 metres, the minimum height of the conductors over the river is 76 metres. Each tower has three crossarms and carries two circuits of 400 kV three-phase AC.
  400 kV power lines also cross the Thames at the Thames Cable Tunnel, the Dartford Cable Tunnel, and the London Power Tunnels.
context_section_description: The 400 kV Thames Crossing is an overhead power line crossing of the River Thames, between  Botany Marshes in Swanscombe, Kent, and West Thurrock, Essex, England. Its towers are the tallest electricity pylons in the UK.
  The present crossing was built in 1965, and comprises two 190-metre (623 feet) tall lattice towers each side of the Thames. Some suggest that the choice of this height was deliberate, being just taller than the BT Tower in London. The span is 1372 metres (4501 feet), the minimum height of the conductors over the river is 76 metres (249 feet). Each tower has three crossarms and carries two circuits of 400 kV three-phase AC.
  400 kV power lines also cross the Thames at the Thames Cable Tunnel, the Dartford Cable Tunnel, and the London Power Tunnels.
caption: The Kent tower seen from a distance
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