Facility Building Cast

Casting of the foundation of the escape shaft at the RTS Facility Building is underway. As of now, the northbound TBM has been launched at Springleaf, and is believed to have similarly launched at the SBAB launch shaft. Ground improvement works are ongoing for the cross passages.

Casting of the lower basement at the RTS facility building site where the 2 northbound TBMs would breakthrough

Ground improvement works for CP4

The continuous twin tunnel mainline drive from Springleaf to RTS will be the longest attempted since the Circle Line, stretching 2km

Temporary rings can be seen as the northbound TBM commences its initial drive. The southbound TBM would launch at a later date