Bahrain

Jasrah Interchange Upgrade (AMAS Access Improvement – Package 4), Bahrain

Located in Bahrain, the Jasrah Interchange Upgrade (AMAS Access Improvement – Package 4) involved the construction of roads and a bridge structure, featuring a single carriageway that merges traffic from Janabiya Highway to Shaikh Isa bin Salman Highway. The project also included the replacement of bridge bearings at Janabiya Bridge.

The new bridge spans a total length of 444 m and features a two-lane carriageway with an overall width of 12.90 m, including a hard shoulder and concrete barrier. Structurally, the bridge is divided into four units comprising 11 spans and was constructed using posttensioned, pre-stressed cast in-situ reinforced concrete.

It is supported by 22 piers, two abutments, 10 pile caps, and 74 bored working piles, with bearings designed to manage longitudinal and transverse forces. The project also delivered a 287.90-metre ramp entry and a 157.06-metre ramp exit, both supported by mechanically stabilised earth (MSE) walls. Additional works included the diversion and protection of utilities and the upgrading of safety barriers at five key structures, including Jasrah Interchange and Isa Town (Sehla) Interchange.

Appointed by the Ministry of Works, SSH delivered design and supervision services for the project.