This publication complements two earlier design guides for the design of composite bridges in accordance with the Eurocodes. It recognises that many highway bridges carry roads that are on a curved alignment and the supporting structure follows that curved alignment. The guidance addresses the consequences of the plan curvature on the design.

The publication discusses:

• The options of using a series of straight girder lengths (chords to a curve) and of using curved girders.
• The behaviour of curved elements, noting the torsional effects that arise, and the application of the Eurocodes to situations that are not always explicitly covered by its rules.
• Consequences for construction (noting that the fabrication of curved girders is readily achievable in modern workshops) and the options for bridge articulation.

A short worked example illustrates the application of design rules to a two-span bridge, similar to the examples in publication P357 but curved in plan.

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