Main Bridge

Five-span continuous 968 m (3175 ft.) long hybrid cable-stayed/extradosed bridge with two navigation spans. It comprises three equal main spans of 242 m (794 ft.) with side spans of 121 m (397 ft.).

Deck of the Main Bridge

Composite steel and concrete utilizing precast concrete deck panels and simple prefabricated steel elements.

Approaches to the Main Bridge

A total length of 1.4 km (0.9 mile) consisting of 600 m (1968 ft.) on the north side and 842 m (2762 ft.) on the south side. They comprise concrete precast prestressed girders with a concrete deck.

Main Girders

Vertical concrete pylons and cables stays act in two parallel single vertical planes.

Main Pylons

A shallow transverse crossbeam is hidden within the depth of the deck section to provide transverse frame action. This arrangement permits the use of a single access/maintenance gantry for the full length of the main crossing. The cable-stays are arranged at a relatively flat angle in a simple harped configuration resulting in low (40 m/131 ft.) slender pylons above deck level.

B&T's Scope of Work

B&T developed the conceptual, preliminary and detailed design of the main bridge and approaches and provided erection engineering for the construction of this Design/Build/Finance/Operate/Maintain bridge.