(Portland, OR)  --  Portland Commissioners have approved a contract to begin work on an earthquake-proof pipe.  The 73-point-five-million-dollar project would put the 45-hundred-foot-long pipe under the Willamette River.  The work comes in response to expert reports that there's a 35 percent chance of a massive rupture on the Cascadia Subduction Zone fault line that runs to the east of Portland in the next 50 years.  Construction is set to begin on the Willamette River Crossing pipe project in 2022.