Abstract from ted.com: Bridges need to be functional, safe and durable, but they should also be elegant and beautiful, says structural engineer Ian Firth. In this mesmerizing tour of bridges old and new, Firth explores the potential for innovation and variety in this essential structure — and how spectacular ones reveal our connectivity, unleash our creativity and hint at our identity.
Author’s Note: This video came about via tip from one of the pontists in one of the social network sites devoted to historic bridges and serves as a reminder to another article published a week earlier on by Scottish engineers suggesting American bridge builders look for sources of inspiration in places outside their borders. In the past two decades, many new structures have been built to supplant other, fancier historic bridges, whose design presents an appealing taste to the public. The mentality of quantity versus quality at the lowest possible cost but at the same time with little or no maintenance for a century has resulted in blocks of concrete with no character ruling the rivers and streams with little or no aesthetic value. This myth is just a fantasy and is miles away from reality that we see on highways and in cities today. No wonder that protests against such projects to replace historic bridges with boring, bland modern structures presented by agencies with dilluted and questionable facts are increasing sharply, as we are seeing with the debate over the future of Frank Wood Memorial Bridge in Maine, for example. The advice to take from the article (accessed here) and by looking at the video below is this: If a bridge needs to be replaced, find a way to reuse the structure for other purposes and if a new bridge is needed, please with an aesthetic appeal that the community will be happy with. Sometimes looking to Europe, Asia or even Africa will help engineers be creative and place quality over quantity. Better is looking at the bridge designs that have been discarded and experimenting with them. After all, money does not matter to bridge building. Communities and the lives of the People living there do, though.
Enjoy the Ted Talk Video below. 🙂