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Ayer Rajah Expressway

Country:

Singapore

Client:

Public Work Department (PWD)

Turnkey design for Ayer Rajah Expressway includes flyovers with two independent carriageways.

The Phase IIA featured Expressway and 2 separate 4-lane flyovers with access ramps forming the interchange (curved on plan with skewed The Phase IIB featured 7 span bridge with 2 independent carriageways providing 3 lanes in each direction. Services Provided by the Meinhardt Group included alignment design, civil engineering pavement, drainage and bulk earthworks design and total structural bridge engineering. The Projects incorporated the turnkey design of a 280m long dual 3 lane carriageway flyover (Stage IID) and a 5 span dual 3 lane carriageway interchange structure. Services Provided by the Meinhardt Group included alignment design, civil engineering pavement, drainage and bulk earthworks design and total structural bridge engineering. Features of the projects included two 45m spans, four 30m spans and a central span of 70m for Phase IID. The central span of the Phase IID structure was designed to have 17m insitu cantilevers from either side with a 41m drop-in span to enable uninterrupted traffic access across the existing road during construction. The Phase IIC carriageway featured 5 varying length spans between 30m and 40m together with ingress and egress slip roads to and from the expressway.