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Cal-Trans Working On Solution For Bridge Replacement Project

Work is still suspended for a large bridge construction project at Lake Shasta due to a minor defect that could lead to major problems. The Shasta Viaduct Project is on the southbound side of Interstate Five in the Turntable Bay Area just north of the Pit River Bridge. Work was stopped on January 5th after the discovery of a 1-and-a-half inch movement at the crown of the arches. A design team and an independent review team are reanalyzing the structure, and they need more time to crunch numbers and calculate potential problems before they can figure out what Cal-Trans should do. Apparently, it’s a relatively unique structure because arch bridges don’t usually bend around a curve in a roadway. That complicates the design considerably. Another issue engineers have studies studied is the proximity to the railroad line, which runs beneath it and will cause frequent virtual tremors throughout the life of the bridge. Cal-Trans says they need several more weeks to figure out how to proceed. At this point, they say there’s no discussion about scrapping the entire project as has been rumored.