What is the Second Severn Crossing made of? (Materials please)?

Question

What is the Second Severn Crossing made of? (Materials please)?

Answer 1

I am only answering this question so the person above can get credit for their useful answer.

:)

Answer 2

The majority of the structure is pre-cast and cast concrete for the piers and structural steel and concrete for the road deck.

320,000 cubic metres of concrete were used and 30,000 tonnes of reinforcing steel.

http://www.severnbridge.co.uk/history_ss...

http://en.wikipedia.org/wiki/Severn_Brid...