Can you use 3D printing to repair bridge corrosion? UMass Amherst researchers have used the Great Barrington’s former ‘Brown Bridge’ as the first test case. With more than half of the nation’s 623,218 bridges experiencing significant deterioration, this process is positioned to be a cost-effective, minimally disruptive solution. The technique called cold spray can extend the life of beams, reinforcing them with newly deposited steel. This research was in partnership with the MIT Mechanical Engin