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Record time demolition of famous Mumbai flyover

The time had come for the Lalbaug flyover of South Central Mumbai.  Engendering immense public and media interest, the district’s landmark made way fora modern bridge on a grand scale. In spite of complex and demanding conditions, the demolition of the overstrained traffic artery occurred much quicker than expected.
In the centre of the action: two combi cutters by Atlas Copco.
Dnyaneshwar flyover
The 38 years old Sant Dnyaneshwar flyover, better known as ”Lalbaug flyover” by Mumbai inhabitants, was in a serviceable condition. Up to 15.000 vehicles per hour used the two lanes one way flyover – including daily traffic jams and environmental consequences. This is why the decision was taken to “think big“: during a construction period of 18 months the urban feeder, covering a span of 2.1 km, shall relieve the traffic situation for a long time.

Of course, this project had to start with the demolition of the old flyover. The densely populated residential and commercial complexes around required some very concise approach: on a strictly confined area, avoiding noise and dust impact. Furthermore the state government allowed only 10 days to execute the demolition work, a longer period of traffic obstructions seemed unacceptable.

Convinced about the  capabilities of Atlas Copco combi cutters, Matte & Associates even accepted a delicate penalty in case of delay. Basically relying on a combination of a CC 1700 U which Matte already owned and a new CC 2500 U, specially ordered for this challenge, the demolition started with live TV coverage. While railing and parapets were crushed by the CC 1700 U above the flyover, the main girders were crushed by the CC 2500 U positioned beside it. At the end of the first day, almost a quarter of the entire debris volume (5000 cubic meters) had been done. And after only six days the entire job - completed. Due to the remarkably undercut time limit, the company gained a bonus and presumably lots of reputation.

While authorities hope that the remaining works on the new bridge will continue with the same accuracy, the devotees of the local Ganesh patron have already found their problem solved. In former years they had to cart their idol all the way around the old flyover during their annual procession. The Ganesh idol, carried on a trolley, had simply been too tall to pass the flyover’s height. A problem of the past with the new higher urban feeder.

 
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