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LEDs have been used to illuminate the reconstructed Interstate-35W bridge in Minneapolis-St. Paul.
This is the first interstate highway to be lit using LED lighting.
From an article about the project in the Star Tribune newspaper article: "Lighting still accounts for as much as 20 percent of electricity used around the world, so improving lighting technology by even a little bit can lead to great savings in energy and reductions in greenhouse gases."
And the costs?
The article goes on to note that, "For large projects like these, the long-run savings in energy and maintenance, as well as the environmental concerns, generally outweigh the short-run costs."
It looks very cool. I can't wait to see it in person! Read the entire article on the StarTribune.com website: LED Lighting: A Bright Idea.
Photo thanks to Wikipedia.