Designed by Santiago Calatrava, this is a harp-shaped cable-stay road bridge of 120 m. It spans the river between North Wall Quay (in Docklands, north bank) and Sir John Rogerson's Quay (near Grand Canal Square, south bank) and the whole contraption hinges through 90 degrees to let ships pass. Daytime it's busy with traffic and is most scenic when floodlit at night. Calatrava also designed the James Joyce bridge upstream.