Sungai Johor Bridge

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The Sungai Johor Bridge will definitely be the longest cable stayed bridge in Malaysia

The cable-stayed bridge has a single central plane of cables in a harp configuration.

Construction of the cable-stayed bridge across the Johor River began in 2006; the bridge was first planned in 1996 but the Asian currency crisis put paid to it at the time. The bridge will connect Kong Kong on the western bank to Teluk Sengat in the east.

The preliminary and detailed design and engineering work was carried out by COWI Consulting Engineers and Planners AS and Ranhill Consulting Sdn Bhd for Senai Desaru Expressway Berhad (the concession holder). Three Ranhill engineers spent six months in Denmark with COWI designers to develop the design of the bridge.

The construction was undertaken by Ranhill Engineers and Constructors Sdn Bhd, foundations were constructed by Ranhill Antara Koh Sdn Bhd, the steel construction was the remit of Jawala and MBEC. Waiko Engineering Sdn Bhd are construction subcontractors, the stay cables and incremental launching of sections were contracted to VSL International.

"The new road will be a four-lane dual carriageway and will improve access across the region of Johfor."

BRIDGE STRUCTURE

The main span of the bridge is 500m and the pylon height is 150m above the surface of the river. The cable-stayed design of the bridge is in a harp configuration but in a single central plane (only one set of stay cables). This means that the cables are in a near-parallel arrangement, by virtue of the fact that the cables are attached to various points on each of the two ‘A’ shaped concrete pylon towers.

Each tower has a foundation of 34-bore 2m-diameter steel cased piles. The result of this is that the height of attachment of each cable on the tower is similar to the distance from the tower along the roadway to its lower attachment.

The middle 739m of the bridge has a composite deck with a 250mm-thick precast concrete deck slab and a closed structural steel skirt (3.5m deep). There are two 484.5m deck sections on either side of the central section and these consist of a concrete box girder structure.