J102 - Choa Chu Kang update Q3 2023

 

24 September 2023 - An overview of the station site at the end of Q3 2023.

Work over at Choa Chu Kang station has been barreling along with major progress made over the past quarter. Station columns have gone up and the viaduct piers parallel to the North-South Line (NSL) and Bukit Panjang LRT tracks have sprung up with crosshead construction beginning as well. Be warned, this post is going to be a long one and photo-heavy.

Station exterior
In this section, we look at the new addition to the station which will house a new platform for the Marina South Pier-bound NSL and the new Jurong Region Line (JRL). Over the course of the past quarter, work has shifted from casting the cable and services troughs underneath the concourse level to the casting of the columns that will support the platforms. This is significant progress as the next stage will be to cast the platform level itself.

The tracks here will be supported in a track bed that is connected to and suspended between the platforms. This is unlike the structure of the existing Choa Chu Kang NSL station where the viaduct structure exists within the station itself and the platforms are supported by the viaduct piers as well.

On the southern end of the existing NSL station, a platform extension is being built. This will house plant rooms at the platform level and shops at the concourse level once done. Significant progress has been made on the extension in the past quarter, with casting works reaching the platform level.

15 July 2023 - A view of the station site at the beginning of Q3 2023.

15 July 2023 - The site for the crossover piers just south of the station.

6 August 2023 - A view of the NSL station extension at the south.

13 August 2023 - An overview of the site in the middle of Q3 2023.

13 August 2023 - A close up of the progress at the site.

13 August 2023 - Several columns coming up at the station site.

13 August 2023 - A view towards the station over run at the northern end.

13 August 2023 - The base of the pier for the crossover while another is going up.

13 August 2023 - A view of the NSL station expansion works at the southern end.

13 August 2023 - The extension at platform level will be used for additional plant rooms.

10 September 2023 - An aerial view of the site at the beginning of September.

10 September 2023

10 September 2023 - Progress on the crossover piers.

10 September 2023 - A close up view of the NSL station southern extension.

10 September 2023 - More columns at the station area popping up.

10 September 2023 - A view of the NSL station extension seen from the street.

10 September 2023 - A view of the NSL station extension seen from the BPLRT station.

10 September 2023

24 September 2023 - An overview of the site towards the end of September.

24 September 2023 - One crossover pier cast and another coming up.

24 September 2023 - A close up view of the station columns. The broader columns in the centre will
support the JRL track while the slimmer columns on the right will support the platform.

24 September 2023 - An additional viaduct pier visible at the northern end for the over run track.

24 September 2023

Station interior
Major changes are coming to the interior of the existing NSL station. As part of the station's reconfiguration works, the fareline will be shifted and broken up into 3 separate farelines facing the station's northern, eastern and southern fronts. The passenger service centre will also be shifted away from its current position. In addition, the existing escalators and staircases will make way for new sets that will be placed in a totally different configuration.

Works are underway to divert away existing services like telephone cables, communication cables and electrical wiring. These will help to free up space for the diversion works which will be coming along.

Over the past quarter, the biggest change would be the hoarding up of an atrium at the platform level, found at the northern end of the station. This is likely to be for the construction of a new staircase that will connect to the future mezzanine level to be constructed on the northern end of the station.

30 July 2023 - A view from the transfer linkway to the LRT of the main station concourse. This
mezzanine level will be expanded to allow access to both NSL and JRL platforms once the
station reconfiguration is completed. A similar mezzanine will be built at the northern end of the
station as well. To access the NSL & JRL platforms, all passengers must use the mezzanine level.

30 July 2023 - A station column visible from the LRT transfer link.

30 July 2023 - Ongoing works near the existing station mechanical & electrical rooms.

6 August 2023 - Hoarding installed in the existing station concourse area.

6 August 2023 - A view of the concourse level from the transfer mezzanine.

9 August 2023 - A view of the existing passenger service centre and fareline. These will be shifted
away once work is complete.

9 August 2023

9 August 2023 - One of the atriums at the northern end of the station hoarded up.

13 August 2023

13 August 2023 - A view of the existing station concourse area.

13 August 2023 - One of the corridors in the concourse unpaid area.

10 September 2023 - More columns seen from inside the station concourse area.

10 September 2023 - Works to add piping in the M&E areas of the station.

10 September 2023 - A view of scaffolding at the southern end of the station for the extension work.

Viaduct
Another interesting site is that of the viaducts after turning off from Choa Chu Kang Avenue 3. Over the last quarter, the progress of the piers has come quite a long way. At the beginning of the quarter, there were 2 piers cast to crown level next to the car park around the HDB blocks. By the end of the quarter, a third had joined them and crosshead construction was commencing for one of the earlier completed piers.

Further piers were under construction at the over run area north of the station. As of the end of the quarter, two of the northern piers for the Jurong Pier-bound trackway was completed. The remaining twin pier, just north of the station, for the Choa Chu Kang-bound trackway has yet to be fully constructed.

15 July 2023 - A view of viaduct piers at the stretch parallel to the NSL & BPLRT tracks.

6 August 2023 - The lone viaduct pier north of the station site for the Jurong Pier-bound trackway.

13 August 2023 - Work underway for the over run track viaduct pier.

13 August 2023 - The column for one of the viaduct piers coming up.

13 August 2023

13 August 2023

13 August 2023

13 August 2023

10 September 2023

10 September 2023

10 September 2023

24 September 2023 - Crosshead construction beginning for one of the viaduct piers.

24 September 2023 - A close up view from street level of the formwork and rebar for the
crosshead construction.

24 September 2023 - An aerial view of the pier next to the existing tracks.

24 September 2023 - Another view of the formwork in place for crosshead construction.

24 September 2023

24 September 2023 - An aerial view of the pier and Choa Chu Kang Avenue 3.

24 September 2023 - A view of the viaduct under construction.

24 September 2023

24 September 2023 - A view of the northern end of the station showing the two piers cast up to
the crown level.

Overall, significant progress has been made at Choa Chu Kang station through Q3 2023. The coming quarter is likely to see more changes with the station being remodeled and reconfigured to allow for access to the new line. We'll be sure to keep you update as progress is made.

This post will also be available on Instagram & Facebook on 30 October 2023.