Heavy rains over the weekend caused a rare combined sewer overflow (CSO) into the Willamette River. Mon, 30 Jun 2025 15:36:16 GMT (1751297776533) Story Infinite Scroll ...

Heavy rains over the weekend caused a rare combined sewer overflow (CSO) into the Willamette River as the Big Pipe system ...

The pipes overflow roughly four times each year, the city said. Before the big pipe system was installed in 2011, that happened more like 50 times a year. Keep an eye on the pipe capacity levels ...