CRL1 - TBM Season

Contract CR102 TBMs during the assembly phase at the launch shaft.
Source: STEC

A happy new year to all our readers & followers! Recently, we have come across a few new images of tunnel boring machines (TBMs) for the Cross Island Line (CRL) phase 1. Coupled with recent deliveries to sites at Hougang, Ang Mo Kio and Defu, its definitely TBM season for the CRL. What better way to begin the new year than by taking a look at all the machines responsible for building the tunnels for the upcoming CRL1? More of them after the jump.

CR112 - TBM assemble!

 

13 December 2024 - The TBM tail shield during lifting operations.

Contract CR112 has made some headway since the arrival of the Tunnel Boring Machines (TBMs) at the site. Two TBMs will be used to bore the twin tube tunnels towards Serangoon North station. After a public name voting process, the TBMs are to be named Artemis & Valkyrie. Parts of the first TBM were lowered into the launch shaft on 7 December 2024 and the tail shield was lifted in on 13 December 2024.

CR202 - A large TBM for a large tunnel

 

A view of the front of the TBM.
Source: Herrenknecht

Recently, German tunnel boring machine (TBM) manufacturer - Herrenknecht - uploaded several images of the machine numbered S-1365 onto its website. The TBM will be used for contract CR202 to construct the large diameter single bore tunnel through the Central Catchment Nature Reserve, connecting Cross Island Line (CRL)'s phases 1 and 2. The contract, won by a joint venture between Obayashi & Shanghai Tunnel Engineering Co, was the first of several CRL2 contracts to be awarded.

CR108, CR115 & CR205 - Traffic diversions & temporary road closures

A compilation of diagrams detailing upcoming road diversions, temporary road closures &
changes to the road networks over the weekend of 16 & 17 November near 3 CRL work sites.

The weekend of 16 & 17 November will be a busy one for the Cross Island Line (CRL) with various traffic diversions, temporary road closures & changes to road schemes taking place across three different projects over 2 phases of the line. The works in particular will affect residents in Pasir Ris at the site of contract CR108, in Ang Mo Kio near site CR115 at Tavistock station and at King Albert Park at the site of CR205.

CR211 - Further information

A screenshot from the webinar, showing Jurong Lake District station's Exit 3 design.

A recent webinar held online by the Bentley to market building information modeling software Synchro allowed viewers to obtain some additional information on Jurong Lake District station under contract CR211. The Cross Island Line (CRL) phase 2 station will be built with an initial 3 exits and two cut & cover tunnel sections on either side of the station. These are known as the Western Cut & Cover Tunnel (WCCT) and Eastern Cut & Cover Tunnel (ECCT).

P103 - Another milestone with TBM cutterhead assembly

 

4 November 2024 - A photo of the visiting delegation in front of the TBM's cutterhead.
Source: Facebook

Contract P103 has reached another milestone with the assembly of tunnel boring machine (TBM)'s cutterhead. Various parts of the machine's shield have already been lowered into the launch shaft which is located outside Pasir Ris camp. Some further assembly is still required before the machine will be launched for its first 3.4km drive towards Punggol station, where it is expected to arrive in mid-2026.

CR211 - Telegram channel launch, CR115 - TBM launch & CR112 - TBMs named

 

A render of the Jurong Lake District station being built under contract CR211.
Source: LTA

20 September 2024 - The launching ceremony for tunneling under contract CR115.
Source: LinkedIn

Tunnel boring machines for contract CR112.
Source: Forms.sg

We have a quick update on some developments along the Cross Island Line (CRL) to share: The launch of contract CR211's Telegram channel & TBM #1 for contract CR115 and confirmed names of the tunnel boring machines (TBMs) for contract CR112. More information after the jump.