The Civil Engineering Contractor January 2018 | Page 15

Infinity  Bridge is a pedestrian footbridge across the River Tees in the borough of Stockton-on-Tees in England. Built at a cost of £15-million, it has a pair of continuous structural steel arches with suspended precast concrete decking and one asymmetrically placed river pier. On the surface of the bridge, light is programmed to respond to the presence of pedestrians, guiding them down the walkway with 200 custom made blue and white LED units concealed under the handrail. As pedestrians cross the bridge, sensors trigger a change from blue to white, leaving a ‘comet’s trail’ in the persons wake. nn CEC January 2018 - 13