The long-awaited Bandra-Worli sea link, seen as an engineering marvel, weighs equivalent to that of 50,000 African elephants and steel wire used is equivalent to the circumference of the earth.

The 5.6 kilometer-long cable stayed bridge, to be opened by Congress President Sonia Gandhi on June 30, is 63 times the height of Qutub Minar and has consumed 90,000 tonnes of cement, which would suffice to make five buildings of 10-storey each, a Mumbai State Roadways Development Corporation official said.