Work on the environmental impact statement for the replacement of the Hood River-White Salmon Interstate Bridge continues.  Port of Hood River project manager Kevin Greenwood says they are 50 percent of the way through that process, and they are entering into a challenging phase of the project, examining potential sites for a new bridge for historic and cultural resources. Greenwood notes the Oregon Department of Transportation is designated as the lead agency to do the outreach to tribal agencies.  Greenwood adds he expects it will take another 18 months to get through the EIS process.