PORTLAND, Ore. (KOIN) – The Oregon Health Authority is expanding its advisory for a harmful algae bloom on the Willamette River. Officials are warning about a cyanobacteria bloom. Now they are testing ...

PORTLAND, Ore. (KOIN) — Two water rescues that occurred back-to-back on Saturday near the same area of the Willamette River in Albany highlight the “unpredictable” nature of river currents, first ...

The algae bloom forming around Ross Island Lagoon in the Willamette River on Monday morning. (Photo courtesy of Eagle Eye Droneography) The thick, green layer of toxin-producing algae currently ...

Update August 19, 2025: The Oregon Health Authority lifted its advisory warning of a harmful algal bloom on the Willamette River, stating "water monitoring has confirmed that the level of cyanotoxins ...

A 57-year-old man was arrested after he was found floating in the Willamette River on a raft made of a box spring, Styrofoam and chicken wire.

Evan Rodriguez / OPB In recent years, the Willamette River has become prone to blooms of cyanobacteria, more commonly known as “blue-green” algae. The algae can pose significant health risks for ...

Explore an ancient ocean’s hidden treasures as we uncover stunning crystals and botryoidal agate formations preserved inside fossilized coral during an epic river rockhounding adventure. This ...

YAMHILL COUNTY, Ore. (KATU) — A man died after suffering a medical event while swimming in the Willamette River on Saturday afternoon, according to the Yamhill County Sheriff's Office. At 3:45 p.m., a ...

A body was discovered in the Willamette River near West Linn on Wednesday evening, according to the Clackamas County Sheriff’s Office.

A Eugene man is dead after drowning in the Willamette River near Clearwater Landing on the afternoon of Aug. 31. According to the Lane County Sheriff's Office, first responders arrived at the scene ...

The bill would have provided $1 million in state funds to design a channel that could restore the Willamette River’s flow and stop the toxic algae blooms from forming. The thick, green layer of ...