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Governors nix current design of new I5 Bridge

first_imgFor a history of the bridge project and previous news coverage, visit The Columbian’s I-5 Bridge Project page.Govs. Chris Gregoire and John Kitzhaber have agreed with a bridge expert review panel’s recommendation to kill the current design for a new Interstate 5 bridge across the Columbia River.The old design had been derided for its beached-aircraft-carrier appearance, as well as its high cost and questionable durability.“We have instructed executives at the Departments of Transportation to discontinue any further design work on the open web box girder bridge type and begin an expedited review of the three bridge types developed by the panel,” the governors said in a joint statement.The Bridge Expert Review Panel forwarded three alternative designs: A tied arch bridge, cable-stay and a composite deck truss structure that actually appears similar to the old CRC design.“All three of these bridges are cheaper than the current open web,” panel chairman Tom Warne said in a telephone interview late Thursday.He said that’s largely because the 16-member panel effectively straightened the river crossing from the sweeping downstream curve previously envisioned by project planners. He said each of the three alternatives is shorter than the CRC’s old design and each requires fewer bridge piers in the water.last_img read more