Location: Istanbul, Türkiye
Client: IHI Corporation
Scale: 152 m long, 31.2 m wide, precast box slab viaduct

As part of the Seismic Reinforcement Project for Large Scale Bridges in Istanbul, the viaducts of the Old Golden Horn Bridge were properly retrofitted to maintain functionality even after a major earthquake.

Services provided included quality control, project management, construction supervision, and the adaptation of design and erection documents to local conditions. The work involved reinforcing piers, replacing the elastomer bearing, expansion joint, and parapet, installing a falling-down prevention device and damper, and expanding the pier foundations.