Ekspan has teamed up with software company Chronic Logic to run a holiday competition to "build" a bridge. The game is available for download from the Ekspan website. It involves the design and construction of virtual bridges which are then tested to see how they perform under loading. Entries will be judged in three categories, with prizes for the best UK and international bridges as well as the craziest design. The closing date is noon on 20 January 2005.