Add Yahoo as a preferred source to see more of our stories on Google. Water watchers know: Sometimes, you can’t swim in the Willamette River. That’s because when the wastewater system gets inundated ...

PORTLAND, Ore. (KOIN) – The Willamette River is under a sewer overflow advisory after heavy rain pushed Portland's Big Pipe to capacity on Thursday. The Combined Sewer Overflow (CSO) advisory impacts ...

For officials in Portland, Ore., the Big Pipe project is no longer a dream. The recently completed $1.4-billion, 20-year combined sewer overflow (CSO) control program was implemented in response to an ...

Portland’s Big Pipe hit 100% capacity Thursday after heavy rains, triggering a combined sewer overflow advisory that remains in effect for the Willamette River. The overflow began about 4:20 p.m.