Scott W Anderson
Hydrologic for the Washington Water Science Center
Science and Products
Supporting Data for Sediment Studies in the White River Watershed
Velocity and Bathymetry Surveys of the Columbia River near Northport, Washington, May 2018
Surficial sediment data on the North Fork Stillaguamish River and State Route 530 landslide near Oso, Washington
Digital elevation models of the State Route 530 landslide near Oso, Washington, July 2014 to July 2015
Topographic and bathymetric surveys of the Nooksack River completed 2015
Suspended sediment, turbidity, and stream water temperature in the Sauk River Basin, western Washington, water years 2012-16
The Sauk River is a federally designated Wild and Scenic River that drains a relatively undisturbed landscape along the western slope of the North Cascade Mountain Range, Washington, which includes the glaciated volcano, Glacier Peak. Naturally high sediment loads characteristic of basins draining volcanoes like Glacier Peak make the Sauk River a dominant contributor of sediment to the downstream
Suspended-sediment loads in the lower Stillaguamish River, Snohomish County, Washington, 2014–15
Geomorphic response of the North Fork Stillaguamish River to the State Route 530 landslide near Oso, Washington
Preliminary assessment of aggradation potential in the North Fork Stillaguamish River downstream of the State Route 530 landslide near Oso, Washington
Transport and deposition of asbestos-rich sediment in the Sumas River, Whatcom County, Washington
Geologic and physiographic controls on bed-material yield, transport, and channel morphology for alluvial and bedrock rivers, western Oregon
Channel change and bed-material transport in the Lower Chetco River, Oregon
Channel change and bed-material transport in the Lower Chetco River, Oregon
Preliminary assessment of vertical stability and gravel transport along the Umpqua River, southwestern Oregon
Geology, hydrology, and mechanics of a slow-moving, clay-rich landslide, Honolulu, Hawaii
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Supporting Data for Sediment Studies in the White River Watershed
The White River is a dynamic gravel-bedded system in western Washington, with headwaters on Mount Rainier. Chronic aggradation in the lower river has reduced flood conveyance to a point where modest discharges are increasingly causing substantial flood damage. In order to better understand the dynamics governing this aggradation, and how aggradation rates may be influenced by forecasted changes inVelocity and Bathymetry Surveys of the Columbia River near Northport, Washington, May 2018
Boat-mounted acoustic doppler current profilers (ADCPs) were used to collect velocity data on the Columbia River in a small area near Northport, WA. Velocity surveys were collected during two surveys at high-flow, high-stage conditions in May 2018. Bathymetric data were also collected during one of the surveys using a single-beam echo-sounder. The datasets here provide 1) raw ADCP and single-beamSurficial sediment data on the North Fork Stillaguamish River and State Route 530 landslide near Oso, Washington
These tables document grain-size distributions of sediment collected as part of a study on the geomorphic impacts of the March 2014 State Route 530 Landslide near Oso, Washington. This includes samples of material from the landslide deposit itself, covering a range of distinct facies present in the landslide, and samples of sand and gravel at various locations along the North Fork Stillaguamish RiDigital elevation models of the State Route 530 landslide near Oso, Washington, July 2014 to July 2015
Digital elevation models of the SR530 Landslide, created using structure from motion photogrammetry. These surveys were performed at irregular intervals between July 1, 2014 and July 7, 2015. Due to the photogrammetric methods used to collect these surveys, there may be substantial artifacts near the edges of the surveys, in areas of vegetation, or over extents of bare water, and should be used wiTopographic and bathymetric surveys of the Nooksack River completed 2015
Bathymetric and topographic data on the mainstem Nooksack River, Whatcom County, Washington were collected in the fall of 2015 as part of a study on sediment transport and channel change. Bathymetric data was collected from the river's mouth to river mile (RM) 28, near Nugent's Corner. Topographic data is available from RM 17, near the town of Lynden, to RM 37, near the confluence of the Middle Fo - Multimedia
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Suspended sediment, turbidity, and stream water temperature in the Sauk River Basin, western Washington, water years 2012-16
The Sauk River is a federally designated Wild and Scenic River that drains a relatively undisturbed landscape along the western slope of the North Cascade Mountain Range, Washington, which includes the glaciated volcano, Glacier Peak. Naturally high sediment loads characteristic of basins draining volcanoes like Glacier Peak make the Sauk River a dominant contributor of sediment to the downstream
AuthorsKristin L. Jaeger, Christopher A. Curran, Scott W. Anderson, Scott T. Morris, Patrick W. Moran, Katherine A. ReamsSuspended-sediment loads in the lower Stillaguamish River, Snohomish County, Washington, 2014–15
Continuous records of discharge and turbidity at a U.S. Geological Survey (USGS) streamgage in the lower Stillaguamish River were paired with discrete measurements of suspended-sediment concentration (SSC) in order to estimate suspended-sediment loads over the water years 2014 and 2015. First, relations between turbidity and SSC were developed and used to translate the continuous turbidity recordAuthorsScott A. Anderson, Christopher A. Curran, Eric E. GrossmanGeomorphic response of the North Fork Stillaguamish River to the State Route 530 landslide near Oso, Washington
On March 22, 2014, the State Route 530 Landslide near Oso, Washington mobilized 8 million cubic meters of unconsolidated Pleistocene material, creating a valley‑spanning deposit that fully impounded the North Fork Stillaguamish River. The river overtopped the 8-meter high debris impoundment within 25 hours and began steadily incising a new channel through the center of the deposit. Repeat topograpAuthorsScott W. Anderson, Mackenzie K. Keith, Christopher S. Magirl, J. Rose Wallick, Mark C. Mastin, James R. ForemanPreliminary assessment of aggradation potential in the North Fork Stillaguamish River downstream of the State Route 530 landslide near Oso, Washington
On March 22, 2014, the State Route 530 Landslide near Oso, Washington, traveled almost 2 kilometers (km), destroyed more than 40 structures, and impounded the North Fork Stillaguamish River to a depth of 8 meters (m) and volume of 3.3×106 cubic meters (m3). The landslide killed 43 people. After overtopping and establishing a new channel through the landslide, the river incised into the landslide dAuthorsChristopher S. Magirl, Mackenzie K. Keith, Scott W. Anderson, Jim O'Connor, Robert Aldrich, Mark C. MastinTransport and deposition of asbestos-rich sediment in the Sumas River, Whatcom County, Washington
Heavy sediment loads in the Sumas River of Whatcom County, Washington, increase seasonal turbidity and cause locally acute sedimentation. Most sediment in the Sumas River is derived from a deep-seated landslide of serpentinite that is located on Sumas Mountain and drained by Swift Creek, a tributary to the Sumas River. This mafic sediment contains high amounts of naturally occurring asbestiform chAuthorsChristopher A. Curran, Scott W. Anderson, Jack E. Barbash, Christopher S. Magirl, Stephen E. Cox, Katherine K. Norton, Andrew S. Gendaszek, Andrew R. Spanjer, James R. ForemanGeologic and physiographic controls on bed-material yield, transport, and channel morphology for alluvial and bedrock rivers, western Oregon
The rivers of western Oregon have diverse forms and characteristics, with channel substrates ranging from continuous alluvial gravel to bare bedrock. Analysis of several measurable morphologic attributes of 24 valley reaches on 17 rivers provides a basis for comparing nonalluvial and alluvial channels. Key differences are that alluvial reaches have greater bar area, greater migration rates, and shAuthorsJames E. O'Connor, Joseph F. Mangano, Scott A. Anderson, J. Rose Wallick, Krista L. Jones, Mackenzie K. KeithChannel change and bed-material transport in the Lower Chetco River, Oregon
The lower Chetco River is a wandering gravel-bed river flanked by abundant and large gravel bars formed of coarse bed-material sediment. Since the early twentieth century, the large gravel bars have been a source of commercial aggregate for which ongoing permitting and aquatic habitat concerns have motivated this assessment of historical channel change and sediment transport rates. Analysis of hisAuthorsJ. Rose Wallick, Scott W. Anderson, Charles Cannon, Jim E. O'ConnorChannel change and bed-material transport in the Lower Chetco River, Oregon
The lower Chetco River is a wandering gravel-bed river flanked by abundant and large gravel bars formed of coarse bed-material sediment. The large gravel bars have been a source of commercial aggregate since the early twentieth century for which ongoing permitting and aquatic habitat concerns have motivated this assessment of historical channel change and sediment transport rates. Analysis of histAuthorsJ. Rose Wallick, Scott W. Anderson, Charles Cannon, Jim E. O'ConnorPreliminary assessment of vertical stability and gravel transport along the Umpqua River, southwestern Oregon
This report addresses physical channel issues related to instream gravel mining on the Umpqua River and its two primary tributaries, the North and South Umpqua Rivers. This analysis constitutes a “Phase I” investigation, as designated by an interagency team cochaired by the U.S. Army Corps of Engineers, Portland District, and the Oregon Department of State Lands to address instream gravel mining iAuthorsJim E. O'Connor, J. Rose Wallick, Steven Sobieszczyk, Charles Cannon, Scott W. AndersonGeology, hydrology, and mechanics of a slow-moving, clay-rich landslide, Honolulu, Hawaii
The Alani-Paty landslide has damaged streets, utilities, and homes built on a debris apron in Honolulu, Oahu, Hawaii. Failure of weathered, crudely stratified, highly plastic, debris-apron deposits has created several similar landslides in southeastern Oahu. The Alani-Paty landslide affects about 60 residential lots. It is about 300 m long, 160 m wide, 7-10 m thick, and consists of two main kinemaAuthorsRex L. Baum, Mark E. Reid