J103 - Corporation update Q2 2023

 

28 May 2023 - A view eastwards of the Corporation station and viaduct piers. Tengah depot
can be seen in the background.

Besides being responsible for the construction of reception tracks to the depot, contract J103 also covers the construction of Corporation station. The station sits right at the end of the reception tracks from the west, which will branch off the main line before elevating across the main line and Pan Island Expressway (PIE) to swing back to the Tengah depot. As such, the piers east of Corporation station feature a rather different design to carry 4 trackways instead of the usual 2. Construction of the station itself, located in the road median of Jurong West Avenue 2, features a slight differing design from that of neighbouring stations as well. Rather than using rounded piers, this station uses two squarish columns that support the concourse deck. More after the jump!

8 April 2023 - A view of the progress of concourse level crossheads.

7 May 2023 - A view of the station construction and how it has progressed since April.

7 May 2023 - A close up view of the concourse level crossheads.

7 May 2023

7 May 2023 - The eastern end of the station and the viaduct piers that will support up to 4 tracks.

7 May 2023 - A view of the wider viaduct pier columns.

7 May 2023

7 May 2023

7 May 2023

7 May 2023 - A close up view of the viaduct pier columns.

28 May 2023 - Looking eastwards along Jurong West Avenue 2, further viaduct piers between
Corporation and Jurong West station are popping up.

28 May 2023 - Scaffolding & netting has been removed from the concourse level crosshead
of the station's western-most pier.

28 May 2023 - Several pre-cast beams that will form the concourse slab have also been installed.

28 May 2023 - Generally, the remaining concourse level crossheads have also been tidied up.
On the right, several pre-cast beams can be seen awaiting installation.

15 June 2023 - A view from the north along Jurong West Avenue 2 of the station's progress.

15 June 2023

15 June 2023 - Several more precast beams have been put in.

15 July 2023

15 June 2023

Station construction
Over Q2 2023, the station has progressed from casting of the station pier concourse level crossheads to installation of pre-cast concourse level beams. Once the pre-cast beams have been entirely installed, the casting of the concourse slab can begin. A layer of rebar is likely to be laid across and thereafter concrete casting takes place. Once this has been completed, the station columns can be cast and works proceed to the platform level thereafter.

28 May 2023 - Viaduct piers east of the station.

28 May 2023 - Another view of the viaduct piers east of the station.

15 June 2023 - Further east, work is still underway for the viaduct pier foundations.

15 June 2023 - Pile cap construction is in progress.

15 June 2023 - Former slip road from the PIE to Jurong West Avenue 2 is being used as a
worksite.

15 June 2023 - More viaduct piers beginning to emerge.

15 June 2023 - And open pits are a plenty.

15 June 2023 - Pile cap cast and the base of the column, earth covered and sheet piles extracted.
This is the end result before the upward column climb.

15 June 2023 - Piers covered in netting.

15 June 2023 - While the piers are wider on one side, they are narrower on another. Crosshead
construction has also commenced.

15 June 2023 - Another view of crosshead construction.

15 June 2023

15 June 2023

Approach tracks
The approach tracks on the east side of the station are beginning to take shape with more viaduct piers emerging. The arrangement of the 4 tracks will be slightly complicated, but the main line tracks will be the outer-most tracks with the reception tracks taking up the middle. The main line will be ducking under the reception tracks and hugging the canal before eventually crossing the PIE to Hong Kah station as well. Over the past quarter, works have progressed sufficiently that the bored pile foundations are largely completed and works are transiting to construction of the pile caps and pier columns above that.

28 May 2023 - Several viaduct piers appearing in the stretch between stations.

28 May 2023 - Only a few piers can be seen.

28 May 2023

28 May 2023

11 June 2023

11 June 2023 - Piers under construction and being cast.

11 June 2023 - Aerial view of piers coming up.

11 June 2023 - Rebar frame being installed.

11 June 2023 - Pier being cast & cured.

15 June 2023 - One of the piers has been cast now and others are under construction as well.

15 June 2023 - A view eastwards along Jurong West Avenue 2. The portion up to the junction
falls under the contract J105 scope.

15 June 2023

Between Corporation & Jurong West stations
Over the past quarter piers have gradually begun sprouting up with at least one being cast along this stretch. For the longest time, this area was devoid of any piers. With the number of piers being built constantly increasing, it is a good sign of progress.

In general, works are finally starting to progress. Out of all the contract for phase 1 of the line, this contract has been the last to begin viaduct construction as there have not been any significant spans of piers ready for segment launching thus far. With more piers being cast, hopefully this milestone can be attained in Q3 of 2023. We anticipate that the balanced cantilevered method will be used - thus far this method has seemed to be relatively slower in production rate as compared to using launch gantries which are great when used on straight sections of viaduct.

That said, do continue to drop by as we bring further updates on the construction of the JRL.

This post will also be available on Instagram & Facebook on 23 June 2023.