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.
Oregon Geomorphic Studies Active
Assessing channel change, habitat health, and flood hazards across Oregon rivers and streams.
Below are other science projects associated with this project.
Chetco River Gravel Transport Study
Geomorphology of the Sprague River Basin
Environmental Flow Studies for Middle Fork Willamette, McKenzie, and Santiam River Basins
Below are multimedia items associated with this project.
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.
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.
USGS hydrologist surveying channel depth across Fanno Creek, OR
USGS hydrologist surveying channel depth across Fanno Creek, OR
The USGS put together time-lapse video of the breach of the Marmot Dam, on the Sandy River in Oregon. Hydrology experts from the USGS Oregon Water Science Center and the USGS Cascades Volcano Observatory are studying this removal, the largest planned removal in the Pacific Northwest thus far.
The USGS put together time-lapse video of the breach of the Marmot Dam, on the Sandy River in Oregon. Hydrology experts from the USGS Oregon Water Science Center and the USGS Cascades Volcano Observatory are studying this removal, the largest planned removal in the Pacific Northwest thus far.
Below are publications associated with this project.
Geomorphic and vegetation processes of the Willamette River floodplain, Oregon: current understanding and unanswered science questions
Geomorphic response of the Sandy River, Oregon, to removal of Marmot Dam
Evolving fluvial response of the Sandy River, Oregon, following removal of Marmot Dam
Below are software products associated with this project.
Below are news stories associated with this project.
- Overview
Assessing channel change, habitat health, and flood hazards across Oregon rivers and streams.
- Science
Below are other science projects associated with this project.
Chetco River Gravel Transport Study
In 2009, the USGS completed a comprehensive study of gravel transport and storage along the lower Chetco River.Geomorphology of the Sprague River Basin
The USGS documents historical and current channel and floodplain processes and conditions to assist management and regulatory agencies in evaluating restoration proposals and designing effective restoration and monitoring strategies for the Sprague River and its principle tributaries. The study involves multiple analyses, including assessments of historical channel change, riparian and floodplain...Environmental Flow Studies for Middle Fork Willamette, McKenzie, and Santiam River Basins
Environmental flows are defined as "streamflow needed to sustain ecosystems while continuing to meet human needs." - Multimedia
Below are multimedia items associated with this project.
Suspended-Sediment Sampling from a CablewayUSGS 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 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.
Acoustic Doppler Measurement from a CablewayUSGS 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.
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.
Surveying channel change in Fanno Creek, ORUSGS hydrologist surveying channel depth across Fanno Creek, OR
USGS hydrologist surveying channel depth across Fanno Creek, OR
Marmot Dam Removal, Sandy River, Oregon: Time-LapseMarmot Dam Removal, Sandy River, Oregon: Time-LapseMarmot Dam Removal, Sandy River, Oregon: Time-LapseThe USGS put together time-lapse video of the breach of the Marmot Dam, on the Sandy River in Oregon. Hydrology experts from the USGS Oregon Water Science Center and the USGS Cascades Volcano Observatory are studying this removal, the largest planned removal in the Pacific Northwest thus far.
The USGS put together time-lapse video of the breach of the Marmot Dam, on the Sandy River in Oregon. Hydrology experts from the USGS Oregon Water Science Center and the USGS Cascades Volcano Observatory are studying this removal, the largest planned removal in the Pacific Northwest thus far.
- Publications
Below are publications associated with this project.
Geomorphic and vegetation processes of the Willamette River floodplain, Oregon: current understanding and unanswered science questions
This report summarizes the current understanding of floodplain processes and landforms for the Willamette River and its major tributaries. The area of focus encompasses the main stem Willamette River above Newberg and the portions of the Coast Fork Willamette, Middle Fork Willamette, McKenzie, and North, South and main stem Santiam Rivers downstream of U.S. Army Corps of Engineers dams. These reacAuthorsJ. Rose Wallick, Krista L. Jones, Jim E. O'Connor, Mackenzie K. Keith, David Hulse, Stanley V. GregoryGeomorphic response of the Sandy River, Oregon, to removal of Marmot Dam
The October 2007 breaching of a temporary cofferdam constructed during removal of the 15-meter (m)-tall Marmot Dam on the Sandy River, Oregon, triggered a rapid sequence of fluvial responses as ~730,000 cubic meters (m3) of sand and gravel filling the former reservoir became available to a high-gradient river. Using direct measurements of sediment transport, photogrammetry, airborne light detectioAuthorsJon J. Major, Jim E. O'Connor, Charles J. Podolak, Mackenzie K. Keith, Gordon E. Grant, Kurt R. Spicer, Smokey Pittman, Heather M. Bragg, J. Rose Wallick, Dwight Q. Tanner, Abagail Rhode, Peter R. WilcockEvolving fluvial response of the Sandy River, Oregon, following removal of Marmot Dam
The October 2007 removal of Marmot Dam on the Sandy River, Oregon, triggered a rapid sequence of fluvial responses as ~730,000 m3 of sand and gravel that filled the former reservoir were suddenly exposed to an energetic river. Using direct measurements of sediment transport, photogrammetry, and repeat surveys between transport events, we monitored the erosion, transport, and redeposition of this sAuthorsJon J. Major, Jim O'Connor, Charles J. Podolak, Mackenzie K. Keith, Kurt R. Spicer, J. Rose Wallick, Heather M. Bragg, Smokey Pittman, Peter R. Wilcock, Abagail Rhode, Gordon E. Grant - Software
Below are software products associated with this project.
- News
Below are news stories associated with this project.