The primary objective of the project is to enhance accessibility to Sinan-gun, an area comprising over 1,000 islands, and to promote regional economic revitalisation through the construction of the bridge.
The project encompasses the main bridge, approach bridges, and connecting roads, spanning a total length of 10.8 km. The detailed design was finalised in September 2010, and the bridge officially opened to the public on 4 April 2019.
During the design phase, the project pioneered the world’s first three-pylon multi-span suspension bridge, crossing the strait. The entire process, from design to construction, was completed using exclusively domestic technology, significantly boosting South Korea’s technological capabilities and enhancing its global brand value.
This project has successfully achieved one of the fundamental objectives of engineering: safeguarding the rights to health and survival by ensuring mobility for marginalised residents in rural areas. By providing critical access and connectivity, it has transformed the lives of isolated communities, ensuring their right to mobility and inclusion.
In alignment with the core values of FIDIC, the project stands as a testament to innovation and regional development. The creation of a unique landmark bridge has enhanced the regional identity, promoted tourism through effective marketing, and stimulated local economic growth by improving logistics efficiency. It serves as a powerful catalyst for economic revitalisation in the region.
The bridge's design reflects a harmonious blend of engineering innovation and environmental consideration. As the world’s first three-pylon multi-span suspension bridge in a marine setting, it integrates beautifully with its surroundings while meeting the highest standards of functionality. The two main spans, each measuring 650 metres, provide ample navigational clearance, ensuring the safe passage of vessels up to 320,000 tons.
Given the region’s vulnerability to typhoons, the bridge was designed to withstand extreme weather conditions, including a 1,000-year frequency typhoon. It incorporates cutting-edge technologies developed through national R&D initiatives, such as 1960 MPa high-strength cables and high-performance steel materials. These advancements showcase South Korea’s engineering capabilities and elevate the standards of resilient infrastructure.
This project exemplifies equitable progress by significantly improving the quality of life for citizens and demonstrating the transformative potential of engineering. It is a symbol of South Korea’s commitment to innovation and sustainability, offering a model for infrastructure development both locally and globally.
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Dasan Consultants Co., Ltd.
Envico Consultants Co., Ltd.
DL E&C Co., Ltd.
Ministry of Land, Infrastructure and Transport Iksan Regional Construction and Management Administration
