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Projects

Marina Costal
Expressway- Contract 482

Although it was only a section of about 1km, it cost a whopping $627,000 per meter per meter, a total of $627 million.

To penetrate the unstable landfill underground, it was a challenge that required innovative technology and high-precision, high-difficulty construction methods surpassing existing limitations.

  • Location

    Singapore, Marina Bay

  • Completion
    Date

    August 2014

  • Client

    Land Transport Authority (LTA) in Singapore

  • Project
    Overview

    Total length 1km (2way, 10lanes)
    Underground expressway construction
    - Underground expressway: 0.67km, Underground avenue : 0.33㎞
    - Concrete : 488,000㎥, Rebar : 102,000ton, Earthwork : 897,000㎥

Undersea Road Created by Innovation

Innovation

  • Innovation
    Undersea Road Created by Innovation

    A symbol of innovation that built an undersea highway through fragile seabed

World Class

World Class Proven in Numbers

  • Total
    construction
    cost

    USD627,000($/1m)

  • Accident
    -free man-hours

    11million man-hours

  • Underground Curve Section

    120m

  • Concrete usage

    488,000㎥

  • Rebar usage

    100,000tons

  • Earthwork usage

    897,000㎥

The Deepest Innovation Beneath the Sea

The deepest and most precise innovation under Marina Bay

Creating another masterpiece underground with advanced civil engineering skills

The Marina Coastal Expressway, which is a key arterial road connecting Singapore’s Marina Bay and eastern regions, is a major infrastructure project that crosses the seabed.

Even under extreme conditions where construction had to be done under the fragile reclaimed seabed, we have proven our world-class undersea tunneling technology through precise construction and accident-free completion.

Technology

Next-Generation Innovation Beneath the Coast

DCM (Deep Cement Mixing) Ground reinforcement method

The DCM method improves soft ground by mixing cement-based materials with the existing soil, creating a more stable foundation. This enabled reliable structural construction, while reducing construction time and overall costs.

TERS Wall
Construction Method Wall Construction Method for Supporting Underground Structures

The TERS Wall method is a top-down technique where the outer wall and upper structures are built first, allowing excavation and traffic to continue simultaneously, enhancing efficiency and shortening construction time.

BIM 4D design technique that adds the concept of time (process) to the 3D design model

BIM allowed us to virtually review and coordinate complex subsea structure construction in advance. This minimized process interference and maximized construction accuracy and efficiency.

Awards

Ssangyong E&C's awards draw international acclaim

  • 2016

    Singapore Government BCA Construction Award (Grand prize in civil engineering category)

  • 2014

    Safety and Health Award from The Royal Society for the Prevention of Accidents (Grand Prize)

  • 2014

    Safety and Health Award from Occupational Safety and Health Association, Singapore Ministry of Manpower

  • 2013

    Safety and Health Award from The Royal Society for the Prevention of Accidents (Grand Prize)

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