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.

CRL - A snapshot in August 2024

 

An overview of 2 CRL1 contracts as of August 2024.
Top: Changi East depot
Bottom: Contract CR110 launch shaft at Paya Lebar Air Base

Overview of CRL1 stations CR3 - CR11 as of August 2024.
Top (L - R): CR3 - Loygang, CR4 - Pasir Ris East, CR5/CP1 - Pasir Ris
Middle (L - R): CR6 - Tampines North, CR7 - Defu, CR8 - Hougang
Bottom (L - R): CR9 - Serangoon North, CR10 – Tavistock, CR11 – Ang Mo Kio

Overview of CRL1 stations CR12 – CR13, CPE stations CP2 – CP4 & CRL2 stations CR15 –
CR18 as of August 2024.
Top (L - R): CR12 – Teck Ghee, CR13 – Bright Hill, CP2 – Elias
Middle (L - R): CP3 – Riviera, CP4 – Punggol, CR15 – King Albert Park
Bottom (L - R): CR16 – Maju, CR17 – Clementi, CR18 – West Coast

With the award of contract CR207 for tunnels between Maju and Clementi stations in August, all civil contracts across the Cross Island Line (CRL)'s phases 1, 2 and Punggol extension have been awarded. Work on phase 1 and the Punggol extension were well underway while works along phase 2 were at different stages owing to the contract award progress.

CR112 - Hougang update Q2 2024

 

30 June 2024 - An overview of the station box as of end-Q2.

Contract CR112 was one of the first station contracts awarded for the Cross Island Line (CRL)'s first phase back in 2020. Since then, the contract has come a long way along but, as of Q2, had yet to commence tunneling work. This is despite the fact that a gantry crane being installed near the contract's launch shaft since January this year. Nonetheless, Q2 marked a significant milestone for the contract with the completion of phase 1 diaphragm wall works. This milestone also saw the excavation of portions of the station box commence.

CR203 - New Turf City station renders

 

Layout of Turf City station and its exits.
Source: STEC

Contract CR203 for the construction of Turf City station was one of the last to be awarded for the second phase of the Cross Island Line (CRL). Since the contract's award in May 2024, contractor Shanghai Tunnel Engineering Co (STEC) has since uploaded some images of the station onto its website, including new renders of the station's exterior & interior.

CR202 - Cross Island Line Biodiversity Training Centre

 

27 July 2024 - A view of the front of the training centre with the project site behind the white
noise barriers.

The Land Transport Authority (LTA) launched visits to the Cross Island Line (CRL)'s contract CR202 Biodiversity Training Centre (BTC) on 16th July 2024. The team subsequently made a visit to the BTC where one could learn a bit more about the contract and the special training that workers undergo before being deployed to the project. The contract for the construction of the large diameter single bore tunnel involves tunneling through the Central Catchment Nature Reserve (CCNR), an environmentally sensitive section of the country where wildlife thrives. In view of this, additional training is required to allow workers at the site to pick up knowledge on practices to minimise impact on the environment, animals and plants near the work site.

If you're interested to visit the BTC, you can sign up here: https://go.gov.sg/crl-btc

CR116 - Ang Mo Kio update Q2 2024

20 June 2024 - A view of heavy machinery on the south side of the station in end-Q2.

The site of contract CR116 has been a busy one over the past quarter, with preparation works underway to begin construction at Exit 7 outside AMK Hub. This site has been one of the few that has yet to begin construction in any form while works progressed at the rest of the station site. One of the major observations over the course of the quarter was the slow ramping down of diaphragm walling works on the southern edge of the station as the works approached completion. Join us as we look back on the progress made over the past quarter.

CRL - A snapshot in July 2024

Overview of CRL1 contracts CR102 - CR115 as of July 2024.
Top (L - R):  CR102 - Tunnels at Changi East, CR4 - Pasir Ris East, CR5/CP1 - Pasir Ris
Middle (L - R): CR6 - Tampines North, CR110 – Large diameter tunnel, CR7 - Defu
Bottom (L - R): CR8 - Hougang, CR9 - Serangoon North, CR10 – Tavistock 

Overview of CRL1 contracts CR116 & N109A, CPE contracts P102 - P103 & CRL2 contracts
CR205 - CR211 as at July 2024.
Top (L - R): CR11 - Ang Mo Kio, CR12 - Teck Ghee, CP2 - Elias
Middle (L - R): P103 Cripple siding, CR15 - King Albert Park, CR16 - Maju
Bottom (L - R): CR17 - Clementi, CR18 - West Coast, CR19 - Jurong Lake District

July was a momentous month for the Cross Island Line (CRL). All civil contracts for the construction of stations across phases 1, 2 and the Punggol extension were awarded. Along phase 1, several contracts were in the midst of Tunnel Boring Machine (TBM) assembly and subsequent launch as well. In this update, we take a brief look at the progress made across the line's first few phases.