Completion of the near 5,000 tonne heads This month the Hinkley Point C Marine Works Team poured the final concrete pours of the six cooling water tunnel heads, completing the work ahead of time.
The first-of-a-kind head structures will cap the intake and outfall tunnels, which are currently being bored by three 1,500-tonne tunnel boring machines under the Bristol Channel.
Each of the four intake heads will be 44 metres long (roughly the length of four double-decker buses), eight metres high and weigh 4,650 tonnes. They will each have 775 tonnes of reinforcement, 125,000 individual reinforcing bars and 1,600m3 of concrete. The two outfall heads weigh 3,500 tonnes each, with 250 tonnes of reinforcement, 52,000 individual reinforcing bars and 1,100m3 of concrete.