North Bristol relief sewer – a tunnelling breakthrough

preview_player
Показать описание
The tunnelling of our new 5.5km ‘super sewer’ in Bristol is finished. A specialist machine has been travelling deep underground for 19 months from Lawrence Weston to Almondsbury. Here you can watch the head of the machine being lifted out of the ground, and find out more about the tunnelling process.
Рекомендации по теме