Renovation and Widening of Golden Horn Bridge

Project Location


İstanbul - TURKEY


Services Provided


Design check and supervision of construction




General Directorate of Highways


Period of Service




Associated Firms

: COWI-Denmark (The Leader)

Project Cost



Cost of Services


660.000.000 JPY

Key Factors of Project :

• Renovation of 822m long orthotropic steel girder Golden Horn Bridge
• Two additional steel box-girder bridges on both sides
• Very deep steel piles in sea-mud
• Improvement of nearby interchanges
• Total 800m PC new viaducts and many small structures



Scope of Services :

• Technical inspection. review of repair and strengthing methodology
• Supervision of the renovation works of existing bridge
• Design ewview, and consultancy
• Construction supervision og new steel bridges, roads, interchanges and other structures
• Quality control
• Certification of payments