North-South Corridor opening delayed two years amid construction challenges
Unexpectedly difficult ground conditions will require more complex construction work, says LTA.
The North-South Corridor (NSC) highway will now open in phases starting from 2029, rather than the initially planned 2027. This two-year delay is attributed to unexpectedly challenging ground conditions that necessitate more intricate construction work. The viaduct, which spans from Admiralty West to Lentor Avenue, will open incrementally from 2029, while the tunnel section from Lentor Avenue to East Coast Parkway will open in stages from 2031.
From 2028, roads, footpaths, and nearby areas impacted by construction will be opened gradually, with noise barriers beginning to be removed. Pedestrian overhead bridges affected by the tunnel construction will be restored from 2029. Over 90% of the foundation work for the 8.8 km viaduct and the 12.3 km tunnel has been completed.
The remaining viaduct work will focus on installing above-ground structures, while the tunnel will continue underground from 2027. Delays at critical construction stages have caused knock-on effects for later stages, despite efforts to maintain safety and optimize methods. Challenges faced include unexpected ground conditions in Gambas Avenue and Woodlands Avenue 8, as well as broken rock and underground water seepage in Novena, requiring additional preparatory works and a more complex mining method to avoid affecting the North-South MRT line.
Written by urgent.news from The Business Times - Singapore's reporting — not their text. Machine-written — may contain errors; check the original before relying on it.
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