About HS2 South Portal & Colne Valley Viaduct Public Visit
South Portal is the main site of the Align joint venture, working in partnership with HS2. From here, our two tunnel boring machines Florence and Cecilia were launched to dig the Chiltern Tunnels, as well as the starting point of the Launching Girder called Dominique building the Colne Valley Viaduct. This is also the largest constraction site on HS2 with 550000 square meters of land.
Activity
Visit to our Exhibition Centre where you can learn about how our tunnel boring mnachines work, and how we are building the longest railway bridge in the UK. With a minibus tour. This visit is PPE free and open to members of the general public, school groups please use the seperate school visit slots on 17th March
Book Your Visit
Thu
16Mar 2023 |
10:00 - 12:00
Max Group 15 |
Fully Booked | ||
Thu
16Mar 2023 |
14:00 - 16:00
Max Group 15 |
Fully Booked |
Want to visit this site but booking not open or fully booked? Use the waiting list function to be notified when places become available