N109A - Teck Ghee update Q3 2023

19 August 2023 - Installation of rebar visible within the excavated trench.

Work at Teck Ghee station's site is progressing with the excavation of the western half of the tunnels for the North-South Expressway underway. Looking at the work taking place, it may be likely that the structure on the western side will be completed before earth is back-filled on top of the roof slab and work begins on work for the eastern half's structure. At this point, Ang Mo Kio Avenue 6 which travels right on top of the future tunnels has been pushed to the eastern side to allow for sufficient space to create a work site on the western side which is where the tunnels are being constructed.

CRL1, CPE & CRL2 - A snapshot in October 2023

 

Top (L - R): CR105 - Large diameter tunnel, CR3 - Loyang, CR4 - Pasir Ris East
Middle (L - R): CR5/CP1 - Pasir Ris, CR6 - Tampines North, CR7 - Defu
Bottom (L - R): CR8 - Hougang, CR9 - Serangoon North, CR10 – Tavistock

Top (L - R): CR11 - Ang Mo Kio, CR12 - Teck Ghee, CR13 - Bright Hill
Middle (L - R): CP2 - Elias, CP3 - Riviera, CR15 - King Albert Park
Bottom (L - R): CR16 - Maju, CR17 - Clementi, CR18 - West Coast

Here's a look at the progress made at the various Cross Island Line (CRL) sites across Phases 1, 2 & the Punggol Extension in October 2023.

CR116 - Ang Mo Kio update Q3 2023

 

19 August 2023 - A view of the progress of construction around the existing North-South Line
(NSL) Ang Mo Kio station.

Over Q3, works have progressed at the Ang Mo Kio station site. Significant progress has been made at the launch shaft site as well as several exit worksites where diaphragm wall excavation works have commenced. Soil treatment work is also being carried out at Exit 8 ahead of excavation there.

CR115 - Tavistock update Q3 2023

 

21 September 2023 - A view of the road diversion implemented for Ang Mo Kio Avenue 3 at
the site of Tavistock station.

Over Q3 2023, road diversions have been put in place at Tavistock station and more machinery has moved in to the site. With works in full swing, diaphragm wall excavation is due to commence in mid-Q4 2023. We take a closer look at the progress made over the past quarter in this post.

CR113 - Serangoon North update Q3 2023

 

21 September 2023 - A view of the station site at the town centre of Serangoon North. Exit 1
will be located there.

The major change that took place over the past quarter was the commencement of diaphragm wall excavation at the Exit 1 site. Located right smack in the heart of the town centre, this will be the site of the main station entrance. Formerly some pile load testing was conducted here before the betonite silos moved in. Subsequently, a hydrofraise machine was also brought in to begin set up. Excavation for the diaphragm wall panels has since begun in Q3 2023.

Further along towards the eastern end of the station is Exit 4, which is located adjacent to Bowen Secondary School. The work site here has made progress with noise barriers being installed and a road diversion implemented. Across the road from the school, work is being carried out with the installation of sheet piles - this may potentially be used as a retaining wall to divert the roadway for the excavation of the station box and mined subway. Over at other sites, preparation has also been carried out ahead of the commencement of diaphragm walling works.

CR112 - Hougang update Q3 2023

 

21 September 2023 - A view of the station box site next to the existing Hougang Central bus
interchange.

Q3 is when things started to get interesting over at Hougang station. The top slab of the tunnel boring machines' (TBMs) launch shaft was cast and excavation works commenced. King posts were being installed at the northern end of the station while diaphragm wall works continued at the south. Over at the west, works began to create the capping beam for an exit. Overall, progress is looking good and the rest of the Cross Island Line (CRL) stations will have to follow suit to catch up.

But first, before we dive into the detailed updates of the various sites, here are some landscape images of the site for your viewing pleasure. These are taken at street level and show the heavy machinery in all their glory.

CR108 - Pasir Ris Drive 1 closure

 

1 October 2023 - A view of the section of roadway before closure.

The past several months at contract CR108 were focused on preparations for the big day where the section of Pasir Ris Drive 1 between the junctions with Pasir Ris Central/Street 51 & Pasir Ris Drive 8 would be closed. That day came on the 8th October 2023, a Sunday. Naturally, traffic would be quieter with less vehicles moving about. We visit the site to find out how residents & motorists were coping with the changes.