Oregon Water Science Center

Lakes and Rivers

Filter Total Items: 49
Date published: May 12, 2017

Wood River Shoreline Management Tool

The Shoreline Management Tool is a geographic information system (GIS) based program developed to assist water- and land-resource managers in assessing the benefits and effects of changes in surface-water stage on water depth, inundated area, and water volume. Additionally, the Shoreline Management Tool can be used to identify aquatic or terrestrial habitat areas where conditions may be...

Date published: May 11, 2017
Status: Completed

Henry Hagg Lake Water-Quality Model

Henry Hagg Lake is a reservoir located in the foothills of the eastern slope of the Coast Range Mountains of northwestern Oregon. The lake is used for recreation in the summer and flood control in the winter.

Contacts: Stewart Rounds
Date published: May 11, 2017

Portland Metropolitan Area Weather and Precipitation

Rainfall drives how much water is in streams. Luckily, there are ample sources of rainfall data around the Portland metropolitan area.

Contacts: Stewart Rounds
Date published: May 11, 2017
Status: Active

Tualatin River Basin Water Quality Assessment

In 1990, the USGS began assessing water-quality in the Tualatin River. Almost 30 years later, we are still monitoring conditions in the basin.

Date published: May 9, 2017
Status: Active

Water Quality in Keno Reach of the Klamath River

The Klamath River from Link River to Keno Dam experiences poor water-quality conditions on a seasonal basis, creating inhospitable conditions for fish and other aquatic organisms. These problems led the Oregon Department of Environmental Quality to prepare a Total Maximum Daily Load (TMDL) plan to bring the river into compliance with water-quality standards. This study uses a hydrodynamic and...

Contacts: Annett Sullivan
Date published: May 2, 2017
Status: Active

City Beavers: Tualatin River Basin Beaver Study

Beavers and their dams are common sights along creeks in the Tualatin River basin. Beaver help create diverse habitats for many other animals, including birds, fish, and amphibians. The USGS studying the affect beaver activity has on the amount and quality of water in local streams, so that agencies in the basin can make strategic management and habitat restoration decisions based on science...

Date published: April 6, 2017

A Thermal Mosaic for the Willamette River

The U.S. Army Corps of Engineers operates 12 dams in the Willamette River Basin. The dams alter natural temperature and hydrologic regimes. Unnatural water temperatures can negatively impact all life stages of salmonid fish species. Water temperature in the mainstem Willamette River regularly exceeds the standard of 18.0 °C (64.4 °F) designated for salmon and trout rearing and migration for...

Date published: March 31, 2017
Status: Completed

Columbia River Contaminants and Habitat Characterization Study

Fish, wildlife, and human populations along the lower Columbia River are exposed to an ever-growing variety of contaminants as a result of increasing urbanization, industrialization, and agricultural development.

Date published: March 30, 2017
Status: Active

Lower Columbia River Dissolved Gas Monitoring Network

USGS total dissolved gas (TDG) data help guide spill and discharge management from dams operated along the lower Columbia River.

Contacts: Heather M Bragg
Date published: March 23, 2017
Status: Active

Contaminants Affecting Pacific Lamprey in the Columbia River

Pacific Lampreys (Entosphenus tridentatus) have lived in the Columbia River Basin for millenia and have great ecological and cultural importance. Lamprey populations in the Pacific Northwest and other parts of the world have declined dramatically in recent decades, probably owing to multiple causes. The role of habitat contamination in the declines has rarely been studied and was the main...

Date published: July 20, 2016
Status: Completed

Water Quality in Willow Creek Reservoir, Oregon

Blue-green algal blooms in the Willow Creek Reservoir may produce toxins that can be harmful to those that come in contact with them.

Contacts: Casie Smith
Date published: June 1, 2016
Status: Active

Future Water Clarity and Dissolved Oxygen in Crater Lake

Warming air temperature may change water temperature and water column mixing in Oregon’s Crater Lake over the next several decades, potentially impacting the clarity and health of the iconic lake.

Contacts: Tamara Wood