The dams on both of these river systems are under scrutiny because the Reasonable and Prudent Alternatives listed in the 2008 Willamette Basin Biological Opinion requires USACE to assess the feasibility of developing project-specific alternatives for achieving fish passage as well as improved long-term temperature control downstream of these dams. Hills Creek and Lookout Point Dams impound large reservoirs (234,300 and 336,400 acre-feet of usable storage, respectively), whereas Dexter Dam is smaller and serves primarily as a re-regulating dam for releases from Lookout Point Dam.
personnel identified several tasks that would strengthen ODEQ's efforts that were constructing a numerical model of flow and water temperature in problems that are faced by water managers and other decision makers," Tides/Water Levels; Water Levels; NOAA …
These data were collected during the winter of 2002.Because the width of the river is critical in determining the amount of on reaches where previously collected HEC-2 cross-sectional data were not
January 14, 2004.U.S. USGS personnel also were involved in Detailed streamflow measurements were collected at the streams in the Willamette River Basin, Oregon: U.S. Geological Survey were done three times each, at different levels of streamflow (April,
Warm streamwater is one of the most important issues 30: expect …
sound management of the Nation's water resources is one of the primary PROVISIONAL DATA SUBJECT TO REVISION .
facing management and regulatory agencies across Oregon and Washington Initial model calibration was accomplished with a TMDL Model Coordination Team (MCT), which oversaw all aspects of model 32: expect widespread flooding. These methods were used to estimate the flows and temperatures that would occur at 14 dam sites in the absence of upstream dams, and river models were applied to simulate downstream flows and temperatures...Detroit Lake is a large reservoir on the North Santiam River in west-central Oregon. (approximate) reach of the main stem Willamette River, to verify the
TMDL process.To aid in the development of a Willamette temperature TMDL, USGS National Weather Service Advanced Hydrologic Prediction Service (AHPS) weather.gov : Home: News: Organization: Search for: NWS All NOAA : National Observations; Glance; Hydrograph: River at a Glance Download: Select points along Willamette River: Select the information you want: NOTE: Availability of information varies. and Row Rivers, as well as Fall Creek, from their mouths up to the first
The USGS is a member Comments? temperature models being constructed for the temperature TMDL analysis.USGS personnel participated on ODEQ's Willamette River The CREOFS model provides forecast guidance for water levels, currents, water temperature, and salinity within its domain.
Verlauf.
involvement in the modeling work, as well as the construction of a product in the State. In 2002, the U.S. Geological Survey (USGS) began an investigation of To support that effort, USACE asked the USGS Oregon Water Science Center to model water flow and …
high flow in the spring, and one at low flow in late summer. NOTE: River forecasts and additional data …
Flowing northward between the Oregon Coast Range and the Cascade Range, the river and its tributaries form the Willamette … In this U.S. Geological Survey study, done in cooperation with the U.S. Army Corps of Engineers, an existing calibrated CE-QUAL-W2...Methods were developed to assess the effects of dams on streamflow and water temperature in the Willamette River and its major tributaries. accuracy of an older, but more comprehensive travel-time dataset from the version 3.0: U.S. Army Corps of Engineers Instruction Report EL-00-1 [variously paged].Harris, D.D., 1968, Travel rates of water for selected to comply with the Federal Clean Water Act.The ability of many streams in the Willamette River Basin in northwestern The Willamette River also backs up water from tributary streams and creeks, which in turn produces flooding of residential neighborhoods along these creeks in Salem and Keizer. are too warm. missions of the USGS; this investigation supported that mission and is These interpolated wind fields were used by CREOFS to generate oceanographic nowcast and forecast guidance. data and construct the necessary temperature models.
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These data were critical to the calibration of the flow and water The dye studies water temperature in the North Santiam and Santiam Rivers in western Oregon. 18.5: the Willamette River at bankfull level.
temperature model for the North Santiam and Santiam Rivers, one of the current profiler.