Portlanders are used to steering clear of the emerald-green water that materializes during warmer temperatures. But this year ...

McGriff said the $12.5 million grant for Oregon City has the chance to bring fresh energy to Willamette Falls. With tumwata village still many years from completion, and the West Linn project not yet ...

Following an unseasonably impressive rainstorm last weekend, the Oregon Health Authority lifted its advisory warning of a ...

The Oregon Health Authority is expanding its advisory for a harmful algae bloom on the Willamette River.

This summer, Portlanders have made their way down to the shores of the Willamette River in droves, keen to get the most out of our city's public swimming spot. Now, a harmful algal bloom is putting ...

Safety advisory issued for Ross Island Lagoon and Willamette River due to potential cyanobacteria bloom. Avoid swimming and high-speed water activities.

OHA issued the advisory on Aug. 12 due to a toxic algae bloom. It had started with the Willamette River south of the Ross ...

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 ...