Oregon Water Science Center

Tanner Creek outfall delivers stormwater runoff with insecticides to Tanner Creek, tributary of the Willamette River

USGS Hydrologic Technician Heather Bragg collects suspended-sediment sample from a cableway downstream from Fall Creek Reservoir. Reservoir was drawn down to purge sediment and trapped fish from behind dam in December 2012.

Video available online.

USGS Hydrologic Technician Heather Bragg collects suspended-sediment sample from a cableway downstream from Fall Creek Reservoir. Reservoir was drawn down to purge sediment and trapped fish from behind dam in December 2012.

USGS Hydrologist Liam Schenk measures sediment transport using an acoustic doppler instrument suspended from a cableway downstream from Fall Creek Reservoir. Reservoir was drawn down to purge sediment and trapped fish from behind dam in December 2012.

Muddy, or turbid water, caused by suspended-sediment released during Fall Creek Reservoir draw down. Reservoir was drawn down to purge sediment and trapped fish from behind dam in December 2012.

View of Clackamas River, OR.

USGS Safety Training Video for cableway pre-use inspection. Training guide for new field personnel to safely and effectively inspect cableway structure and components prior to operation.

Oregon Coast at Cannon Beach.

USGS hydrologist surveying channel depth across Fanno Creek, OR

Following the Condit Dam removal, a significant amount of bedload sediment was transported downstream. As the material moved along the river bottom, dunes began to form then collapse. This dune formation is seen through the waveform action as the stream's normal laminar flow is replaced by whitecap wave forms before returning, once again, to laminar flow.

USGS scientist meaures how much light is transmitted into the Wallowa River, near Minam, OR.