Erdogan to open road tunnel under Istanbul’s Bosphorus
PRESIDENT Recep Tayyip Erdogan was to open the first ever road tunnel underneath the Bosphorus Strait in Istanbul yesterday, the latest project completed in his plan of transforming Turkey’s infrastructure.
Turkey in October 2013 opened the Marmaray rail tunnel underneath the iconic waterway, the first link beneath the waters that divide Europe and Asia.
But from yesterday it will be possible for the first time in history to drive underneath the Bosphorus due to a project aimed at relieving congestion in the traffic-clogged Turkish mega city.
Erdogan was expected to drive himself to make the first journey from Europe to Asia in the Avrasya (Eurasia) Tunnel along with Prime Minister Binali Yildirim after the opening at 1100 GMT.
The tunnel required an investment of $1.2 billion, including loans of $960 million, and will reduce driving time for the route from up to 2 hours to 15 minutes.
It was built by a consortium consisting of private Turkish construction company Yapi Merkezi and South Korea’s SK Group.
The project comprises a 5.4kilometre tunnel, with the portion beneath the Bosphorus 3.4 kilometres long.
The two-storey tunnel was built with a special tunnel boring machine which had a daily progress speed of 8-10 metres on average.
According to the designers, the earth dug in the project would be enough to fill 788 Olympic pools, the cement poured would fill 18 stadiums, while the iron used could build 10 Eiffel Towers.
With Istanbul lying on an active seismic zone, the tunnel has been designed to withstand a 7.5 magnitude earthquake.
It would be undamaged even if Istanbul saw a once-in500-year earthquake. And the tunnel could resume operation “with slight maintenance works” in the event of a oncein-2,500-year earthquake.
Turkish Transport Minister Ahmet Arslan told AFP ahead of the opening that it had been a “huge challenge” to build the tunnel at a depth of 106 metres under the seabed.
He revealed the authorities now planned to build a third tunnel under the Bosphorus that would have three storeys and carry both cars and trains.
“I think the Avrasya tunnel will hugely ease the lives of the residents of Istanbul,” Arslan told AFP. “But we are not just going to stop there.”
Erdogan has said he is aiming to build a “new Turkey” with transformed infrastructure in time for the 100th anniversary in 2023 of the foundation of the modern state by Mustafa Kemal Ataturk.
Other schemes, which Erdogan boasts are his “crazy projects”, include a gigantic third airport for Istanbul, the first ever bridge across the Dardanelles straits and even a Suez-style shipping canal for Istanbul.
Erdogan has vowed that his ambitions will not be derailed by the failed July 15 coup and the swathe of terror attacks Turkey has suffered this year.
Just one month after the attempted coup, Erdogan opened the third bridge across the Bosphorus named after the mediaeval sultan Selim the Grim.
“These kinds of events will not deviate us from our path,” Erdogan said at the weekend after 14 soldiers were killed in an attack blamed on Kurdish militants.