Omega Morgan, a 22-year-old specialized moving company, has its eyes on the aging bridges in the Pacific Northwest. After successfully employing the jack-and-slide method of efficiently moving bridge spans into place for two high-profile projects, the company sees more opportunities in Oregon and Washington. In January, Omega Morgan moved Portland’s 1,100-foot-long, 3,400-ton Sellwood Bridge across the Willamette River in a single day, in one piece and on an angle, drawing national media and big crowds. Then in Washington State on the night of Sept.