 The discovery of a Byzantine-era vault on the Unkapanı bank during excavation works for pier foundations forced a redesign of the project.The design of the swing bridge operator's command building had to be revised when the wall of a Byzantine-era basilica and a graveyard on the same bank came to light.The cable-stayed bridge has an overall length of between Azapkapı (Beyoğlu) and Unkapanı (Fatih), and a span of over water.