"A bridge is about the future," says Miguel Rosales, a bridge designer. "You need to be excited about it." Many are excited about the proposed gracefully curved, hybrid suspension/cable-stayed bridge for Willamette, Ore., the first bridge in the U.S. that will carry light-rail trains, buses, bikes and pedestrians -- but no cars. However, the hybrid design will cost 10% to 15% more than a cable-stayed bridge, and the public needs to give its approval.

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