HS2 Water Main

Today our local daily evening paper published a story about using the route HS2 to lay a water pipeline.

Full details here

Lets look at some of the numbers.

  • HS2 (phase1) Length from Birmingham to London 191.5km
  • Diameter of proposed water main 1.98m
  • Total cost £1.1billion
  • Cost per mile £7million

Thats a big pipe, going a long way. But how much water do you need to fill it. Well

Volume = Pipe Cross section x length

Pipe cross section = 3.07 square metres

Length 191500

Volume = 590,000 Litres

An Olympic swimming pool being 2,500 litres, so about 240 olympic swimming pools.