Work is now under way on the 20-foot sinkhole that’s opened up on Ross Avenue, in the area between Redpath and Division Streets. The sinkhole was discovered last month, and has been traced to a sewer line that’s failing. Public Works Director David Sypher says that they have to get a repair done in short order, or sewer service to homes in that area could be lost. The Kelso City Council has approved emergency repairs on the pipe; Rotschy, Inc. of Vancouver is now digging holes to begin a “pipe-bursting” process, then K&R Plumbing Construction of Clackamas will begin pulling a new pipe through the old pipe. The old “burst” pipe will be left in place, as a shell around the new pipe. Sypher says that they expect to replace 610 feet of sewer line, along with 18 lateral lines. It’s estimated that the emergency repairs will cost between $300,000 and $400,000.