Authorities have completed the launching of the final girder for the longest and most crucial flyover under the Station Area Traffic Improvement Scheme (SATIS) near Kalyan railway station. This marks a significant milestone aimed at easing long-standing congestion in the busy station area.
Flyover Details and Specifications
The 1,125-metre-long flyover stretches from Subhash Chandra Bose Chowk to Bailbazar Chowk and has entered its final stage of construction. Officials stated that the structure, with a width ranging from 9 to 18 metres, will significantly improve traffic movement once completed.
Advanced Construction Technology
The flyover has been constructed using Ultra-High Performance Fibre Reinforced Concrete (UHPFRC), a Malaysian technology also used in the Mumbai-Pune Missing Link project. This material offers five to six times higher compressive strength than conventional concrete and is highly resistant to weathering and pollution, giving the structure a lifespan of over 100 years.
Integration with SATIS Project
This flyover is a key component of the SATIS project, designed to reduce heavy congestion outside Kalyan railway station and improve overall traffic flow in the area. The remaining two flyovers under the project are also nearing completion and will be interconnected to enhance traffic circulation.
Technical and Safety Measures
IIT Bombay provided technical support for the flyover's structural design and proof-checking, ensuring improved safety and durability standards. Engineers faced a challenge due to an existing foot overbridge at Pandit Jawaharlal Nehru Chowk but used UHPFRC technology to complete girder launching without dismantling it or affecting pedestrian movement.
The final girder launching was carried out late at night with civic officials, engineers, consultants, and contractors present to ensure smooth execution with minimal disruption. The project is being executed by the Smart Kalyan Dombivli Development Corporation Ltd as part of broader infrastructure upgrades.



