Detecting a Bridge Strike As the only railroad bridge over the Mississippi River between Memphis and Baton Rouge, the Old Highway 80 bridge in Vicksburg, Mississippi, is a vital link in our country’s transportation infrastructure. Constructed in 1930, the aging structure not only endures rail tra?c from the Kansas City Southern Railway, but also sees signi?cant boat tra?c underneath. In August 2016, a SENSR structural monitoring system was installed on the bridge to detect marine bridge strikes. The Challenge On November 25, 2016, barges in the Yazoo River broke loose of their moorings and drifted into the Mississippi River upstream of the Old Highway 80 bridge. Exacerbating the situation, a towboat collided with the loose barges, which in turn caused some of the barges it was tow

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