More than a decade ago, Ramsey County poured $243 million into purchasing, renovating and reviving the downtown St. Paul Union Depot, a 1920s-era transit hub that hadn’t hosted passenger trains since 1971. Situated on 33 acres of riverfront property off Kellogg Boulevard, the neoclassical train depot welcomed their return in May 2014 when Amtrak’s Empire Builder began rolling in a morning trip ...