Sheikh Khalifa Bin Salman Causeway Project – Marine Bridge
The Sheikh Khalifa Bin Salman Causeway Bridge connects the peninsular of Hidd with the mainland of Bahrain at the Mina Sulman port in Manama. The bridge will carry dual two-lane carriageways, however these will eventually function as dual three-lane carriageways.
The bridge is 404 meters long between abutments with intermediate supports located within the sea. The embankments forming the causeway have already been constructed.
The main navigation span is 121 meters long and has a minimum vertical clearance between soffit of deck and Mean High Water Spring tide Level of 15.4 meters and a horizontal clearance of 115 meters . The main navigation span is a bowstring arch structure with two pairs of arches, one either side of the deck, each supporting a longitudinal tie member suspended by hangers. Between these tie members spans transverse steel girders. A reinforced concrete top slab will form the deck and this will act compositely with the structural steelwork. The approaches on either side of navigation span consists of 3 equal spans either side with span lengths of 46 meters. These approaches are independent of the main-span and are formed using steel plate girders spanning longitudinally into a transverse steel crossbeam forming a diaphragm at the supports.
All the structural steel work was fabricated in Cleveland Bridge & Engineering’s works in Dubai, United Arab Emirates, where it was pre-assembled prior to being delivered and erected in Bahrain. The navigation span together with each temporary support steelwork weigh in excess of 2500 tonne and is 121 meters long, 54 meters wide with an arch height of 26 meters. Cleveland Bridge UK. were responsible for the barging out of all of the steelwork together with the erection on site. The approach span were all erected by means of a ringer mounted barge crane while the main span was strand jacked into its final position, where upon the haunches were welded to the main span.