beginning in 1908, the oregon electric railway (oe), which operated an interurban line between portland and salem, served the community of tualatin. at its peak, the line extended south as far as eugene. the oe line's tualatin depot is believed to have stood on the site of the present-day wes station. as automobile use increased in the 1920s, passenger volume on the line failed to grow as projected. this resulted in oe ending passenger rail service in may 1933. diesel freight service continued to run along the route into the 1990s.