An independent review conducted and reported today by the Oregonian concludes that the government’s economic justifications for a controversial proposal to dredge the Columbia River are deeply flawed. The Corps of Engineers wants to spend $196 million to dredge more than 100 miles of the Columbia River. In a three-part series beginning today, the Oregonian will report that deficiencies in the analysis have significantly inflated the benefits to the region and an underestimated the costs to taxpayers. “The Corps of Engineers’ math does not add up,” said David Moryc, Lower Columbia River Coordinator for American Rivers. Since the Corps released their final Environmental Impact Statement in 1999…