The Wishbone Bridge, designed by Tony Gee & Partners, carries Line 1 of the Midland Metro over the roundabout at the junction of Bilston Road and the Wolverhampton ring road. It was decided that the bridge should be of suspended form and of a height to be sympathetic to its surroundings.
The specified rail loadings meant that a substantial arch form was needed and the design adopted sees the base of the arch rising through a central aperture between the two lines and spanning both before tightening its curvature as it thrusts down to its foundation. This distinctive profile gives the bridge its name.
The reinforced concrete track slab is suspended from the arch by tubular hangers located along the centreline.
The form and profile of the arch is balanced by a simple back span, providing a clean line to the eye. The wishbone arch has a 40m span with an additional 20m in the back span.
Client for the £1M structure is Centro and Wolverhampton MBC, architect is Percy Thomas Partneship and main contractor is Altram.
Tony Gee & Partners (01932) 868277