Heavy rains cause sewage overflow into Willamette River
About 60,000 gallons of combined sewage overflowed into the Willamette River in Portland in a 23-minute period Saturday afternoon, the Portland Bureau of Environmental Services said.
The overflow was caused by heavy rains that fell in the area and came from a single outfall at Northwest 110th and Front Avenue, officials said. It began at 4:46 p.m. and ended at 5:09 p.m.
People should avoid contact with the Willamette River in the area of Linnton and the Port of Portland Terminal 4 and downstream until late Monday.
This is the first combined sewer overflow of 2019, authorities said in a release, and was made up of 80% stormwater and 20% sewage. Before the Big Pipe project of 2011, there were on average about 50 outfalls a year.
Both Portland and Troutdale recorded record rainfall amounts for August 10. In Portland, 0.79 inches of rain was recorded, more than doubling the 1957 record of 0.36 inches.
In Troutdale, a record that stood for 54 years — 0.30 inches — was topped when 0.36 inches was recorded. A final report from the National Weather Service will be released on Sunday.
KOIN 6 News is a news partner of the Portland Tribune. You can find their story here.
Quality local journalism takes time and money, which comes, in part, from paying readers. If you enjoy articles like this one, please consider supporting us.
(It costs just a few cents a day.)