An incrementally launched ramp for the SAAR Interchange in Bahrain

The Shaikh Khalifa Bin Salman Highway (SKBSH) and Shaikh Isa Bin Salman Highway (SIBSH) are two of the most important arterial roads of the Kingdom of Bahrain. A project to widen and improve the two highways included their junction, known as the SAAR Interchange, with an additional grade-separated left-turn ramp designed to link the southbound SKBSH to the eastbound SIBSH. The ramp comprised a 515m long flyover built using the incremental launch method. This paper gives an overview of the detailed design and discusses particular aspects of the construction method employed in greater depth.