Contract awards - J115A & the curious case of Peng Kang Hill

 

Platform level of Peng Kang Hill. Visible are escalators leading to both lower and upper concourse
levels.
Source: LinkedIn

Yesterday, the Land Transport Authority (LTA) awarded contract J115A, which includes the construction of Peng Kang Hill station, to Hwa Seng Builder. The successful contractor is also in charge of neighbouring contract J113 for the construction of Nanyang Crescent and Nanyang Gateway stations. As such, this makes all stations within the Nanyang Technological University under the purview of a single contractor - an undoubtedly useful situation as the contractor should be able to ensure that the flow of construction vehicles into and out of the campus can be regulated much more ease than if the contracts were split between 2 different contractors.

Casting Yards

 

June 2021 - A test pre-cast segmented box girder being cast.
Source: LinkedIn

The construction of the Jurong Region Line (JRL) includes the construction of piers and viaducts that will form the trackbed for the line. One of the most common methods for construction of the viaducts is using segmented box girders to form a complete span which is laid between two pier columns. Wires are passed through the interior of the box girders and tensioned, providing the force necessary to keep the span rigid and able to withstand the loads that are placed upon it.

Choa Chu Kang - closure of exit D and shops

 

Cross section showing new additions under J102.
Source: LTA

Contract J102 was one of the first contracts awarded for the construction of the Jurong Region Line (JRL). As such, construction works at this contract are some of the farthest along. The contract entails the construction of 3 JRL stations, including addition & alteration works to the existing Choa Chu Kang station. To do this, a new platform will be added to allow for cross-platform transfer between the North South Line (NSL) and JRL. The concourse level will be expanded as well, to accommodate circulation and vertical access to the new platforms.

CNY Special - First viaduct piers for JRL

 

01 February 2022 - Rebar visible above the hoarding for Jurong Region Line's viaduct piers.

We'd like to wish all our readers a Happy & Prosperous Lunar New Year! May each of you be blessed with bountiful fortune in the year of the Tiger. And to all the contractors on the Jurong Region Line (JRL) project, may you all experience good health (and safety) this coming year.

Through the Chinese New Year period, we have been travelling around a fair bit and noticed the first viaduct piers for the line beginning to emerge above the hoarding protecting the worksite.

J110 & J120 Construction Update - Q3 2021

 

An artist's impression of the Jurong East interchange and integrated transport hub complexes.
Source: Aedas

To conclude our Q3 update on the Jurong Region Line (JRL) for 2021, we visit Jurong East. Construction here is covered under 2 contracts - J110 and J120. Contract J110 is for the construction of Jurong East interchange station and modifications to integrate the new structure in with the existing complex. On the other hand, Contract J120 involves the construction of the Jurong East integrated transport hub (ITH), including JRL viaducts through the complex.

J109 Construction Update - Q3 2021

 

3D rendering of the northern section of contract J109.
Source: Jurong-Clementi Town Council

As our previous post was getting rather long, we decided to split up the updates for easier readability. This section will cover updates on contract J109, the second contract under phase 2 of the Jurong Region Line (JRL). Contract J109 was won by Daewoo - Yongnam joint venture and involves the construction of Toh Guan, Jurong Town Hall & Pandan Reservoir stations. Interestingly this contract is split into 2 sectors located north and south of Jurong East interchange which will be built under a separate contract, being contract J110 won by Daelim.

J108 Construction Update - Q3 2021

25 September 2021 - A view of the route as the line swings in to Tengah estate as seen from Bukit Batok Road.

Phase 2 of the Jurong Region Line (JRL) is the final phase we cover in our update for Quarter 3 of 2021. This phase consists of 4 contracts - J108, J109, J110 and J120 for the construction of various parts of viaducts and stations. Contract J108 was won by John Holland-McConnell Dowell and will connect phase 2 to the rest of the line at phase 1's Tengah interchange station. The contract will involve the construction of 3 stations at Tengah Plantation, Tengah Park & Bukit Batok West.

As this post is rather photo-heavy, we have decided to break the post up according to contract for easier readability. Do look out for our subsequent posts on other sections of the line.