Decade later, SCLR extn iscomplete, but for load test
Mumbai: The SCLR extension is now structurally ready, with a final load test scheduled on the cable-stayed bridge over Vakola flyover before it is opened to traffic.
MMRDA has completed the asphalting work on the final stretch of the Santacruz-Chembur Link Road (SCLR) extension.
The elevated corridor includes a crucial cable-stayed span crossing the Western Express Highway (WEH) at Vakola.
"The load test is scheduled for Tuesday, subject to dry weather. This is the final procedure before the bridge can be declared fit for traffic," said sources associated with the project, which is executed by J Kumar Infraprojects.
A load test is an essential structural assessment where loaded vehicles or calibrated weights simulate real-world traffic conditions.
It helps engineers measure deflection, strain, and vibration in the structure to verify if it performs as designed. A successful load test is mandatory before opening the bridge to the public. Due to sharp curves and elevation requirements to pass above the existing Vakola flyover, engineers opted for a cable-stayed design over traditional concrete girders.
"The longer span and fewer piers made the design ideal for this tight corridor," a source involved in construction explained.
The cable-stayed bridge is capable of handling more pressure compared to a suspension bridge. The 250-metre-long cable-stayed section includes an Orthotropic Steel Deck (OSD), known for being lighter and stronger than concrete decks. "It reduces the load on piers and speeds up construction," the source added. All 58 prefabricated steel segments, each measuring 4x10.6 metres, were manufactured at a workshop in Wada using E410-grade steel with corrosion-resistant paint.
MMRDA also sought permission from the Maharashtra State Road Development Corporation (MSRDC) to install a temporary pier in the flyover median to assist with the deck launching.
Work on the SCLR extension bridge started in 2016 and was scheduled to be completed in 2019. However, the absence of right of way and design issues, as well as the Covid-induced lockdown, led to an extension of the deadline.
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