Project Description

The 1915 Çanakkale Bridge spans the Dardanelles at the western end of the Sea of Marmara and is the longest suspension bridge in the world. Environmental conditions and maritime traffic in the strait were key factors in the development and choice of construction methods for the bridge. Eight 450-ton capacity lifting gantries were required for deck erection, two for each side span and four for the main span. There were 153 deck segments to be erected, of which 143 were erected with the gantries. The state-of-the-art lifting gantries were self-erected onto the main cables and developed to reduce operating cycle times. Almost 3.4 km of deck were erected in two months.

Judge’s comments

Environmental conditions and maritime traffic in the strait were well considered in the development and choice of construction methods for this vast bridge. The state-of-the-art lifting gantries were self-erected onto the main cables and developed to reduce operating cycle times meaning that almost 3.4 km of deck were erected in two months. The innovative system maximised pre-assembly off the critical path, minimised disruption to shipping and eliminated the need for floating cranes.

This innovative system used a range of structural materials and equipment, maximised pre-assembly off the critical path, minimised disruption to shipping and eliminated the need for floating cranes.

Skilled temporary works on a mega scale.

Project overview

Structural Designer

  • DLT Engineering Ltd.

Client Name

  • DLSY JV

Location

  • Çanakkale, Turkey

Architect

  • COWI

Principal Contractor

  • DLSY JV

Key Contractors

  • DLT Engineering Ltd. – Deck Lifting Gantries Supplier

    SRBG – Deck Erection Sub-contractor

    DLT Engineering Ltd. – Deck Erection Supervision

Year Submitted

  • 2022

Key attributes

  • Process