(Portland, OR)  --  A plan to expand Portland's Providence Park by four-thousand seats will move forward after a vote by the Portland City Council.  The Council passed a resolution that waives the ticket taxes on each of those seats.  The Portland Timbers say the privately funded, 50-million-dollar expansion project would include a 93-foot-tall covered structure on the stadium's east side.  The expansion is designed by Portland-based architecture firm Allied Works.