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Old July 17th, 2016, 09:34 AM   #741
luacstjh98
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What about the interface between CRLe and the CCNR tunnels?

And I think 1006 might be regarding the Punggol branch - they might be wanting to firm up their plans for the branch before committing to the AE study.
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Old July 30th, 2016, 03:52 PM   #742
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C1006, which is for the CRLe Mainline Package B studies, was called yesterday.

"Advance Engineering Study for the Proposed Cross Island Line Eastern Leg (CRLe) from Sin Ming to Changi - Mainline Package B"

https://www.lta.gov.sg/apps/tender/

I wonder what this package will cover..
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Old July 30th, 2016, 05:42 PM   #743
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I'm guessing Elias/Lorong Halus to Hougang and the Punggol branch.

Package A is likely Changi East to Elias/Lorong Halus, and definitely including Changi Depot.

Package C is probably Hougang to Bright Hill.
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Old August 3rd, 2016, 08:59 AM   #744
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Wonder if this got anything to do with CRL

http://m.todayonline.com/singapore/e...ent-under-sers
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Old August 3rd, 2016, 09:33 AM   #745
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I saw that too.

But it seems a bit close to Clementi, so I guess it would be either the JRL, or a cripple siding/maintenance facility for CRLw.
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Old August 3rd, 2016, 01:08 PM   #746
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It's definitely related to CRL. Cripple siding likely, possibly with the interchange station between CRL and JRL too all in the vicinity of the location. It will be around 1.5km by track distance between Clementi and this station due to the curve, turning 135 deg from due north-south, to SE-NW.
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Old August 3rd, 2016, 07:31 PM   #747
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Quote:
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It's definitely related to CRL. Cripple siding likely, possibly with the interchange station between CRL and JRL too all in the vicinity of the location. It will be around 1.5km by track distance between Clementi and this station due to the curve, turning 135 deg from due north-south, to SE-NW.
I reckon there are 2 possible alignments for CRL along the Clementi west coast region. The u turn alignment is 1 possibility. along those SI rigs we have seen so far. The other is the shorter connection from Clementi station to Hong Leong garden landed estate.
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Old August 4th, 2016, 02:05 AM   #748
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Alternative alignments for DPC costs analyses are usually not studied and proposed until the AE consultancy comes on board. Significant changes between the first announcement and the coming on board of the AE Consultants is very usual, that's why the first announcement alignment is usually very rough. This happened for TEL stage 1-3 when the alignment switched from Stevens Road to Dalvey Estate, stopping at Napier & Orchard Boulevard instead of the more direct connection.
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Old August 4th, 2016, 03:30 AM   #749
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Is it possible that the direct route would be used for CRL, and the SERS site replaced with a MTR-esque landed development over a second JRL depot?
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Old August 4th, 2016, 06:24 AM   #750
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could both be used for CRL which the local CRL could stop at the additional station while Commuter Express and Limited Express CRL could just follow the direct route?
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Old August 4th, 2016, 06:57 AM   #751
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Entirely possible - the IND Culver Line in New York does this between 7th Avenue and Church Avenue stations.

But wouldn't it require nearly double the SI? And if the decision is taken to 4-track the CRL, stacking 2 tracks on each level of a double decker tunnel, then no need.
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Old August 17th, 2016, 05:40 PM   #752
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Contract Ref. C1008
Mechanical and Electrical Engineering Services for Cross Island Line Eastern Leg (CRLe) Depot

LTA has called for the above CRL contract today. It seems like LTA is putting CRLe works ahead of CRLw.
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Old October 25th, 2016, 10:11 AM   #753
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LTA has appointed a contractor for SI works on the "direct" option:

https://www.facebook.com/WeKeepYourW...200717/?type=3
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Old November 28th, 2016, 06:04 PM   #754
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Anybody knows around when the punggol-pasir ris portion will begin operation?
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Old November 29th, 2016, 01:59 AM   #755
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2030, based on LTMP2013.
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Old November 29th, 2016, 03:19 AM   #756
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First tender (Feasibility Studies) was awarded in July 2014. Probably already completed.

Second tenders (Engineering Studies) for East section has been called; should be awarded by March 2017. This will go on until Q2 2019.

Construction should begin by Q4 2019.

East section around 40km.

Construction would take around 5-10 years, depending on how they split the thing. So I expect the construction to last from Q4 2019 up to Q4 2029.

Plus one year testing commissioning, I expect the east section to open in Q4 2030.

Last edited by busanalyser; November 29th, 2016 at 03:27 AM.
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Old November 29th, 2016, 03:25 AM   #757
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By the way, what's the status for the West section?

If they only gonna call second tender for that after the east section one is awarded, most likely the West section will open in 2032.
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Old November 29th, 2016, 03:34 AM   #758
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Construction typically takes around 7-9 years, if most of the line is cut & cover or typical bored tunnels. The east section may be slightly faster with most of the boring done in old alluvium or Kallang formation, with only small sections of Bt Timah formation at Changi and Ang Mo Kio. Hence a slightly earlier opening may be possible (2028-2029) for areas east of CCNR. As for the west section which runs through CCNR, granite and rock formations, and additional 2- 3 years including time taken for more extensive engineering studies will be required.
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Old November 29th, 2016, 03:58 AM   #759
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Quote:
Originally Posted by y2koh View Post
Construction typically takes around 7-9 years, if most of the line is cut & cover or typical bored tunnels. The east section may be slightly faster with most of the boring done in old alluvium or Kallang formation, with only small sections of Bt Timah formation at Changi and Ang Mo Kio. Hence a slightly earlier opening may be possible (2028-2029) for areas east of CCNR. As for the west section which runs through CCNR, granite and rock formations, and additional 2- 3 years including time taken for more extensive engineering studies will be required.
Can we consider deep-level blasting within the Bukit Timah formation, and would it speed up any works? I know HK has done it in plenty of places...
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Old November 29th, 2016, 01:24 PM   #760
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Quote:
Originally Posted by luacstjh98 View Post
Can we consider deep-level blasting within the Bukit Timah formation, and would it speed up any works? I know HK has done it in plenty of places...
With the amount of safety measures, checks by BCA, WSH measures, and consultation with NSS on vibration and impact on ground water, deep-level blasting may actually increase the construction time compared to the usual methods using slurry TBMs with forward probing.
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