İstanbul Büyükkent Belediye Başkanı (Metropolitan Municipality mayor) Ekrem İmamoğlu goes to tunnel construction site for Çavuşdere –Bülbüldere Tunnel. Construction. This tunnel was stopped during previous mayor but İmamoğlu restarted when he was elected mayor.

Çavuşdere –Bülbüldere Tunnel is in Üsküdar part of İstanbul on the Anatolian side of Boğaziçi (Bosphorus).  Tunnel is to drain rainwater. There are several tunnels.

Çavuşdere tunnel are two tunnels 729 meter each. Diameter 3 meters 20 centimeters.

Bülbüldere tunnel 906 meters. Diameter 3 meters 20 centimeters.

Both tunnels use tunnel boring machines for construction.

İmamoğlu get information from Raif Mermutlu the general manager of İSKİ (İstanbul Water Sewege Administration)

İmamoğlu and Mermutlu talk about precautions against coronavirus at construction site.

https://www.gercekgundem.com/istanbul/167001/uskudarin-kader-projesinde-sona-yaklasildi