A demolished highway in Michigan is getting a new lease on life thanks to the state's efforts to recycle rubble from the dismantled pavement. Concrete boulders and gravel are being used to build other roads around the state in a move that officials say saves money and should create new roadways capable of lasting up to half a century. "Materials are the biggest cost of a project. Anytime you can reuse materials, it just makes sense," says one transportation manager.
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