Six years later, the new Peace Bridge is now open and each day brings more than 6,000 commuters into Calgary at a connection point just west of Prince’s Island. In a departure from Calatrava’s usual palette of white suspension apparatus, the Peace Bridge is a low, red cylinder slung between the two river banks it joins. A minimally profiled structural tube (approximately 19 feet high by 26 feet wide) was the design solution for Calatrava, who worked alongside structural consultant Stantec to develop a helical bridge that would perform without the claustrophobic side effects of a tunnel for its users. Bent structural glass between the curved steel frames forms the roof canopy over an open-air bridge deck, supported by diagrid steel decking, with lightweight cement as the surface. Originally, city planners had estimated about 4,000 daily users for the bridge. A recent study, however, found the numbers to be 50 percent higher than anticipated, with 1,600 users between the hours of 6:00 p.m. and 9:45 p.m., and 700 users after the commuter rush, from 8:00 p.m. to 9:45 p.m.