Willamette River (English Wikipedia)

"Willamette River Multi-Purpose Development in the 1930s" (PDF). Army Engineers and the Development of Oregon: A History of the Portland District U.S. Army Corps of Engineers. U.S. Army Corps of Engineers. 1983. p. 107. Archived from the original (PDF) on February 21, 2014.

acme.com

mapper.acme.com

USGS Topo Maps for United States (Map). Cartography by U.S. Geological Survey. ACME Mapper. Retrieved June 7, 2010.

americanrivers.org

"The Willamette River: A Renaissance in the Making" (PDF). American Rivers. p. 140. Archived from the original (PDF) on April 11, 2016.

americaswetlandresources.com

"Mississippi River Anatomy: How Much Water Does the Mississippi Handle?". America's Wetland Foundation. June 1, 2012. Archived from the original on May 14, 2016. Retrieved August 27, 2013.

army.mil

nwp.usace.army.mil

"Willamette Falls Locks". U.S. Army Corps of Engineers. Retrieved December 22, 2022.
"About Our Willamette Valley Locations". U.S. Army Corps of Engineers. Archived from the original on January 18, 2017. Retrieved November 16, 2016.

blm.gov

Thomas, Mike. "Linn City, Oregon: A Victim of Nature's Wrath". Bureau of Land Management. Archived from the original on September 30, 2016.

capitalpress.com

Mortenson, Eric (June 10, 2015). "Ag's needs from Willamette Basin's dam, reservoir system studied". Capital Press. Salem, Oregon. Retrieved February 16, 2016.

ccrh.org

"St. Johns Bridge Dedication". Center for Columbia River History. Archived from the original on May 9, 2016.

census.gov

factfinder.census.gov

"Oregon – Place 2009 Population Estimates". U.S. Census Bureau. Retrieved January 14, 2011.^{[dead link]}

cityofalbany.net

"2015 Annual Water Quality Report" (PDF). City of Albany, Oregon. p. 3. Retrieved November 16, 2016.

construction.com

northwest.construction.com

Bacon, Sheila (November 2003). "West Side Big Pipe". Northwest Construction. Archived from the original on September 27, 2013.

corvallisoregon.gov

"Water Utility". City of Corvallis, Oregon. Retrieved November 16, 2016.

doi.org

Caldwell, James M.; Doyle, Micelis C (1995). "Sediment Oxygen Demand in the Lower Willamette River, Oregon, 1994". Water-Resources Investigations Report 95-4196. U.S. Geological Survey: 2. doi:10.3133/WRI954196. hdl:2027/uc1.31210026451912. S2CID 129065743.
Spores, Ronald (1993). "Too Small a Place: The Removal of the Willamette Valley Indians, 1850–1856". American Indian Quarterly. 17 (2). University of Nebraska Press: 172. doi:10.2307/1185526. JSTOR 1185526.

epa.gov

water.epa.gov

"American Heritage Rivers News". U.S. Environmental Protection Agency. November 19, 2009. Archived from the original on July 22, 2011.

federalregister.gov

U.S. Fish and Wildlife Service (January 12, 2023). "Endangered and Threatened Wildlife and Plants; Reclassifying Fender's Blue Butterfly From Endangered to Threatened With a Section 4(d) Rule". Federal Register. National Archives. Retrieved May 29, 2023.

fws.gov

"Threatened & Endangered Species". William L. Finley National Wildlife Refuge. U.S. Fish and Wildlife Service. Archived from the original on July 15, 2015.
"Threatened & Endangered Species". Baskett Slough National Wildlife Refuge. U.S. Fish and Wildlife Service. Archived from the original on July 15, 2015.

handle.net

hdl.handle.net

Caldwell, James M.; Doyle, Micelis C (1995). "Sediment Oxygen Demand in the Lower Willamette River, Oregon, 1994". Water-Resources Investigations Report 95-4196. U.S. Geological Survey: 2. doi:10.3133/WRI954196. hdl:2027/uc1.31210026451912. S2CID 129065743.

isu.edu

"Introduction". The Oregon Trail. Idaho State University. Archived from the original on May 29, 2010.
"The Route West". The Oregon Trail. Idaho State University. Archived from the original on May 29, 2010.

jstor.org

Spores, Ronald (1993). "Too Small a Place: The Removal of the Willamette Valley Indians, 1850–1856". American Indian Quarterly. 17 (2). University of Nebraska Press: 172. doi:10.2307/1185526. JSTOR 1185526.

katu.com

Labrecque, Jackie (2017-07-06). "Poet's Beach will have life guards, swim rope along Willamette River's west banks". KATU. Retrieved 2023-09-20.

kptv.com

Padula, Andrew (July 25, 2014). "Man Battling Cancer Swims Entire Length of Willamette River". KPTV Fox 12. Archived from the original on 2014-07-01. Retrieved March 11, 2017.

lowimpacthydro.org

"LIHI Certificate #33 – Willamette Falls Hydroelectric Project, Oregon". Low Impact Hydropower Institute. Archived from the original on April 2, 2016. Retrieved December 23, 2014.

nationalgeographic.com

"Clackamas Indians". National Geographic. National Geographic Society. 1996. Archived from the original on February 8, 2010.

nationalmap.gov

edits.nationalmap.gov

"Willamette River". Geographic Names Information System. U.S. Geological Survey. November 28, 1980. Retrieved June 25, 2010. Source and mouth elevation derived from Google Earth search using GNIS source and mouth coordinates.

nature.org

"Sustainable Rivers: Willamette Flow Management" (PDF). The Nature Conservancy. Archived from the original (PDF) on November 11, 2013.

news.google.com

"The Floods and the Storm". The Philadelphia Record. February 9, 1890. p. 1. Retrieved July 2, 2011.
"Floods Wash Out Oregon Bridges". The Vancouver Sun. Vancouver, British Columbia. December 1, 1942. p. 1. Retrieved July 2, 2011.
"Lower River Areas Hit by Flood Crest". The Register-Guard. Eugene, Oregon. Associated Press. January 2, 1943. p. 1. Retrieved July 2, 2011.
"Flood Peril Wanes in Ohio Valley". Reading Eagle. Reading, Pennsylvania. United Press International. January 1, 1943. pp. 1, 18. Retrieved July 2, 2011.
"Willamette River Is Nearing Crest of Flood Stage". The Spokesman-Review. Spokane, Washington. Associated Press. November 28, 1946. p. 2. Retrieved July 2, 2011.
Hall, Landon (October 4, 2001). "After the Flood: Portland State Pays Tribute to Vanport Pioneers". Daily Record. Ellensburg, Washington. Associated Press. p. B3. Retrieved August 26, 2013.
"River Flood Waters Reach Oregon Capital". Telegraph Herald. Dubuque, Iowa. Associated Press. December 14, 1948. p. 16. Retrieved July 2, 2011.
"Floods Spoil Holiday in Oregon, California". The Spokesman-Review. Spokane, Washington. December 25, 1964. p. 2. Retrieved June 29, 2011.
"Portland Gets Reprieve from a Big Flood Threat". The Nevada Daily Mail. Nevada, Missouri. December 27, 1964. p. 1. Retrieved June 29, 2011.
"1000 Flee Flood in Northwest; Nation Shivers". The Pittsburgh Press. United Press International. January 30, 1965. p. 1. Retrieved July 2, 2011.
"Eastern Deep Freeze Eases, but Rain Brings Flood Fears to West". The Lewiston Daily Sun. Lewiston, Maine. Associated Press. February 6, 1965. p. 1. Retrieved July 2, 2011.
"Swollen River Spares Downtown Portland". The Deseret News. Salt Lake City. Associated Press. February 10, 1996. p. A4. Retrieved June 25, 2011.
"Flood Wall Comes Down Today in Portland". The Register-Guard. Eugene, Oregon. April 1, 1996. p. 3C. Retrieved June 26, 2011.
"Flood Wall Readied for Next Time". The Register-Guard. Eugene, Oregon. Associated Press. October 14, 1996. p. 5C. Retrieved June 27, 2011.
"Oregon Sets Pace in Improving Environment". Sarasota Herald-Tribune. Sarasota, Florida. Los Angeles Times/Washington Post News Service. April 17, 1973. p. 20A. Retrieved July 17, 2011.

newsbank.com

nl.newsbank.com

Barnard, Jeff (February 25, 1996). "Flood Spreads in Economy Like Muddy Water". Rocky Mountain News. Denver. Associated Press. Retrieved June 26, 2011.

noaa.gov

wrh.noaa.gov

National Weather Service Forecast Office. "Local Tide Predictions and Water Levels". Portland, Oregon: U.S. Department of Commerce. Retrieved July 2, 2010.

nwr.noaa.gov

"Willamette River Basin". NOAA National Marine Fisheries Service, Northwest Regional Office. June 28, 2012. Archived from the original on September 22, 2012.

nps.gov

"Willamette Floodplain". National Park Service. Archived from the original on November 17, 2016. Retrieved November 16, 2016.
"National Water Trails System". National Park Service. Retrieved March 31, 2020.

nrtdatabase.org

"Willamette River Water Trail". American Trails. Retrieved March 31, 2020.

nytimes.com

timesmachine.nytimes.com

"Oregon's Great Floods" (PDF). The New York Times. February 7, 1890. Retrieved July 2, 2011.

octa-trails.org

"Where did the Oregon Trail Go? Reaching Oregon's Willamette Valley". Oregon-California Trails Association. Retrieved September 3, 2014.

ohjv.org

"Willamette Valley Projects". Oregon Habitat Joint Venture. November 14, 2001. Archived from the original on March 13, 2016.

opb.org

"A Chronology of Farming in Oregon". Oregon Public Broadcasting. 2000. Archived from the original on March 4, 2016.

oregon.gov

"Multnomah Channel" (PDF). Oregon State Marine Board; Oregon State Parks Department. p. 30. Archived from the original (PDF) on May 29, 2014.
"Tidally-Influenced Waterways". Waterway Authorizations. Oregon Department of State Lands. Archived from the original on October 8, 2012.
"Willamette River Recreation Guide" (PDF). Oregon State Marine Board. December 2007. pp. 1–3, 10. Archived (PDF) from the original on November 17, 2016. Retrieved November 16, 2016.
"Willamette Basin Reservoirs" (PDF). Oregon Water Resources Department; U.S. Army Corps of Engineers. Retrieved December 19, 2020.

sos.oregon.gov

"Clackamas County". Oregon Blue Book. Oregon State Archives. Retrieved October 26, 2018.

oregonencyclopedia.org

Robbins, William G. "Willamette River". The Oregon Encyclopedia. Portland State University and the Oregon Historical Society. Retrieved May 19, 2014.
Jette, Melinda. "Kalapuya Treaty of 1855". The Oregon Encyclopedia. Portland State University. Retrieved June 6, 2010.
Willingham, William F. "U.S. Army Corps of Engineers". The Oregon Encyclopedia. Portland State University. Retrieved September 14, 2011.
Reinhardt, Bob. "Detroit Dam". The Oregon Encyclopedia. Portland State University. Retrieved June 7, 2010.

oregongeology.org

"Earthquake Education: Historic Earthquakes in the Pacific Northwest". Oregon Department of Geology and Mineral Industries. Archived from the original on May 29, 2018.

oregonhistoryproject.org

Allen, Cain (2004). "The Great Flood of 1861". The Oregon History Project. Oregon Historical Society. Archived from the original on August 27, 2016. Retrieved June 17, 2016.

oregonlive.com

House, Kelly (July 9, 2015). "As Willamette Project Dam Work Inches Along, Corps Works Out Deadline Extension". OregonLive. Retrieved January 22, 2017.
Learn, Scott (September 8, 2011). "Getting Salmon Past Daunting Willamette Basin Dams Could Have a Big Price Tag—and a Big Payoff". OregonLive. Retrieved January 22, 2017.
Rose, Joseph (June 30, 2011). "Construction Begins on New Light-rail Bridge in Portland That Will Go Up 'Piece by Piece'". OregonLive. Retrieved June 30, 2011.
Zaveri, Mihir (June 17, 2011). "In Oregon's Willamette Valley, the Race to Save the Endangered Fender's Blue Butterfly". The Oregonian. Retrieved December 21, 2022.

oregonstate.edu

pnwho.forestry.oregonstate.edu

"The Basins: About the Willamette River basin". The Pacific Northwest Hydrologic Observatory. Oregon State University. Archived from the original on December 9, 2014.

ir.library.oregonstate.edu

Taylor, George H. (November 1996). "The Great Flood of 1996: Its Causes and a Comparison to Other Climate Events" (PDF). Oregon State University. p. 2. Retrieved August 3, 2011.

orst.edu

fsl.orst.edu

Gregory, S.; Ashkenas, L.; Jett, S.; Wildman, R. "Flood Inundations/FEMA Floodplains: Floods and Floodplains in the Willamette River" (PDF). Willamette River Basin Atlas (2nd edition). Corvallis Forestry Research Community, Oregon State University. Archived from the original (PDF) on December 9, 2017. Retrieved June 6, 2010.

pnsn.org

assets.pnsn.org

Ludwin, R. S.; Qamar, A. I.; Malone, S. D.; Crosson, R. S.; Moran, S.; Thomas, G. C.; Steele, W. P. (October 11, 1996). "Scotts Mills Earthquake Summary". University of Washington Department of Earth and Space Sciences. Archived from the original on June 28, 2016. Retrieved September 5, 2014.

pnws-awwa.org

Knudson, Mark; Barg, Libby (May 1, 2008). "Drinking the Willamette: the Power of Public Education" (PDF). Pacific Northwest Section of the American Water Works Association. p. 2. Retrieved December 24, 2012.

portlandgeneral.com

"Clackamas River". Portland General Electric. Retrieved November 16, 2016.

portlandonline.com

"A Big Pipe". The Oregonian. December 11, 2007. Archived from the original on October 8, 2012.

portlandoregon.gov

Bureau of Planning and Sustainability. "Willamette River Dredged Material Management Plan Project". City of Portland. Archived from the original on November 17, 2016.
"Combined Sewer Overflow Control". City of Portland. Archived from the original on November 17, 2016. Retrieved November 16, 2016.
"2011 Bicycle Counts Report". Portland Bureau of Transportation. p. 4. Retrieved April 24, 2013.
"Delta Park". Portland Parks & Recreation. Retrieved November 10, 2013.

portlandtribune.com

Hachmann, Cari (June 27, 2014). "Dean Hall to Finish Willamette River Swim". Portland Tribune. Pamplin Media Group. Archived from the original on July 29, 2014.
Law, Steve (2017-06-07). "Welcome to Portland's first pop-up beach". PortlandTribune.com. Retrieved 2023-09-20.
Van der Voo, Lee (July 2, 2007). "History of a Superfund Cleanup Bid". Portland Tribune. Archived from the original on March 4, 2016.

registerguard.com

projects.registerguard.com

Welch, Bob (March 18, 2010). "A Bridge Too Far Along to Be Renamed". The Register-Guard. Eugene, Oregon. p. B1. Archived from the original on January 19, 2022.

salmonrecovery.gov

"Willamette BiOp". Columbia River Basin Federal Caucus. Retrieved July 26, 2012.

seattletimes.com

Karas, Chisti (July 24, 2015). "Peaceful Paddle with Beer Stops on Oregon's Willamette Water Trail". The Seattle Times. Retrieved January 22, 2017.
"Portland touts revived Willamette River". The Seattle Times. 2017-07-15. Retrieved 2023-09-20.

sei.org

"Background – Project". Columbia River Project—Columbia River Channel Improvement Reconsultation Project. Sustainable Ecosystems Institute. February 28, 2001. Archived from the original on October 5, 2011.

semanticscholar.org

api.semanticscholar.org

Caldwell, James M.; Doyle, Micelis C (1995). "Sediment Oxygen Demand in the Lower Willamette River, Oregon, 1994". Water-Resources Investigations Report 95-4196. U.S. Geological Survey: 2. doi:10.3133/WRI954196. hdl:2027/uc1.31210026451912. S2CID 129065743.

state.or.us

deq.state.or.us

"Portland Harbor Cleanup Sites" (PDF). Oregon Department of Environmental Quality. February 17, 2009. Archived from the original (PDF) on September 30, 2011.
"Portland Harbor Superfund Site". Oregon Department of Environmental Quality. Archived from the original on December 16, 2006.

topoquest.com

U.S. Geological Survey. "United States Geological Survey Topographic Map". TopoQuest. Archived from the original on October 13, 2012. Retrieved June 29, 2010. Relevant map quadrangles include Eugene East, Coburg, Junction City, Harrisburg, Peoria, Riverside, Lewisburg, Albany, Monmouth, Salem West, Mission Bottom, Dayton, St. Paul, Newberg, Sherwood, Canby, Lake Oswego, Portland, Linnton, Sauvie Island, and Saint Helens.
U.S. Geological Survey. "United States Geological Survey Topographic Map: Corvallis, Oregon, Quadrangle". TopoQuest. Archived from the original on October 13, 2012. Retrieved May 31, 2010.
U.S. Geological Survey. "United States Geological Survey Topographic Map: Oregon City, Oregon, Quadrangle". TopoQuest. Archived from the original on October 13, 2012. Retrieved June 1, 2010.
U.S. Geological Survey. "United States Geological Survey Topographic Map: Portland, Oregon, Quadrangle". TopoQuest. Archived from the original on October 13, 2012. Retrieved June 1, 2010.
U.S. Geological Survey. "United States Geological Survey Topographic Map:Linnton, Oregon, Quadrangle". TopoQuest. Archived from the original on October 13, 2012. Retrieved June 5, 2010.

trimet.org

howweroll.trimet.org

Lum, Brian (August 15, 2015). "Tilikum Crossing: Set Apart by Design". TriMet. Archived from the original on September 24, 2015.

trimet.org

"Portland–Milwaukie Light Rail Bridge Fact Sheet/August 2013" (PDF). TriMet. August 2013. Archived from the original (PDF) on February 3, 2014. Retrieved April 19, 2014.

troutdale.or.us

ci.troutdale.or.us

"Hazard Mitigation Plan" (PDF). City of Troutdale. October 25, 2010. pp. 10–1–10–27. Archived from the original (PDF) on July 24, 2014.

usgennet.org

"Clackamas County Oregon History, 1800 to 1843".

usgs.gov

pubs.usgs.gov

Kammerer, J.C. (May 1990). "Largest Rivers in the United States". U.S. Geological Survey. Retrieved July 2, 2010.

waterdata.usgs.gov

"Water-Year Summary for Site USGS 14211720". U.S. Geological Survey. Retrieved January 8, 2017.

or.water.usgs.gov

"Processes Controlling Dissolved Oxygen and pH in the Upper Willamette River Basin" (PDF). U.S. Geological Survey. 1994. Archived (PDF) from the original on December 22, 2016. Retrieved February 12, 2008.

web.archive.org

"Facts About the Willamette River". Willamette Riverkeeper. Archived from the original on October 31, 2016. Retrieved November 16, 2016.
Bureau of Planning and Sustainability. "Willamette River Dredged Material Management Plan Project". City of Portland. Archived from the original on November 17, 2016.
U.S. Geological Survey. "United States Geological Survey Topographic Map". TopoQuest. Archived from the original on October 13, 2012. Retrieved June 29, 2010. Relevant map quadrangles include Eugene East, Coburg, Junction City, Harrisburg, Peoria, Riverside, Lewisburg, Albany, Monmouth, Salem West, Mission Bottom, Dayton, St. Paul, Newberg, Sherwood, Canby, Lake Oswego, Portland, Linnton, Sauvie Island, and Saint Helens.
"Multnomah Channel" (PDF). Oregon State Marine Board; Oregon State Parks Department. p. 30. Archived from the original (PDF) on May 29, 2014.
"Background – Project". Columbia River Project—Columbia River Channel Improvement Reconsultation Project. Sustainable Ecosystems Institute. February 28, 2001. Archived from the original on October 5, 2011.
"Willamette River Multi-Purpose Development in the 1930s" (PDF). Army Engineers and the Development of Oregon: A History of the Portland District U.S. Army Corps of Engineers. U.S. Army Corps of Engineers. 1983. p. 107. Archived from the original (PDF) on February 21, 2014.
"Tidally-Influenced Waterways". Waterway Authorizations. Oregon Department of State Lands. Archived from the original on October 8, 2012.
Ludwin, R. S.; Qamar, A. I.; Malone, S. D.; Crosson, R. S.; Moran, S.; Thomas, G. C.; Steele, W. P. (October 11, 1996). "Scotts Mills Earthquake Summary". University of Washington Department of Earth and Space Sciences. Archived from the original on June 28, 2016. Retrieved September 5, 2014.
"Earthquake Education: Historic Earthquakes in the Pacific Northwest". Oregon Department of Geology and Mineral Industries. Archived from the original on May 29, 2018.
"Hazard Mitigation Plan" (PDF). City of Troutdale. October 25, 2010. pp. 10–1–10–27. Archived from the original (PDF) on July 24, 2014.
"The Basins: About the Willamette River basin". The Pacific Northwest Hydrologic Observatory. Oregon State University. Archived from the original on December 9, 2014.
"Willamette Floodplain". National Park Service. Archived from the original on November 17, 2016. Retrieved November 16, 2016.
Welch, Bob (March 18, 2010). "A Bridge Too Far Along to Be Renamed". The Register-Guard. Eugene, Oregon. p. B1. Archived from the original on January 19, 2022.
"Clackamas Indians". National Geographic. National Geographic Society. 1996. Archived from the original on February 8, 2010.
"Willamette River Recreation Guide" (PDF). Oregon State Marine Board. December 2007. pp. 1–3, 10. Archived (PDF) from the original on November 17, 2016. Retrieved November 16, 2016.
"Introduction". The Oregon Trail. Idaho State University. Archived from the original on May 29, 2010.
"The Route West". The Oregon Trail. Idaho State University. Archived from the original on May 29, 2010.
Lewis, Alan (August 2006). "Conquering the Falls: The Willamette Falls Locks". History of the Willamette Falls. Willamette Falls Heritage Foundation. Archived from the original on May 17, 2013.
Balingit, Moriah; Lednicer, Lisa Grace (May 18, 2006). "Living on Borrowed Time". The Oregonian. Archived from the original on May 21, 2013.
"A Chronology of Farming in Oregon". Oregon Public Broadcasting. 2000. Archived from the original on March 4, 2016.
"Sustainable Rivers: Willamette Flow Management" (PDF). The Nature Conservancy. Archived from the original (PDF) on November 11, 2013.
"Willamette River Basin". NOAA National Marine Fisheries Service, Northwest Regional Office. June 28, 2012. Archived from the original on September 22, 2012.
"American Heritage Rivers News". U.S. Environmental Protection Agency. November 19, 2009. Archived from the original on July 22, 2011.
Bacon, Sheila (November 2003). "West Side Big Pipe". Northwest Construction. Archived from the original on September 27, 2013.
"Combined Sewer Overflow Control". City of Portland. Archived from the original on November 17, 2016. Retrieved November 16, 2016.
"A Big Pipe". The Oregonian. December 11, 2007. Archived from the original on October 8, 2012.
Hachmann, Cari (June 27, 2014). "Dean Hall to Finish Willamette River Swim". Portland Tribune. Pamplin Media Group. Archived from the original on July 29, 2014.
Padula, Andrew (July 25, 2014). "Man Battling Cancer Swims Entire Length of Willamette River". KPTV Fox 12. Archived from the original on 2014-07-01. Retrieved March 11, 2017.
"LIHI Certificate #33 – Willamette Falls Hydroelectric Project, Oregon". Low Impact Hydropower Institute. Archived from the original on April 2, 2016. Retrieved December 23, 2014.
"About Our Willamette Valley Locations". U.S. Army Corps of Engineers. Archived from the original on January 18, 2017. Retrieved November 16, 2016.
U.S. Geological Survey. "United States Geological Survey Topographic Map: Corvallis, Oregon, Quadrangle". TopoQuest. Archived from the original on October 13, 2012. Retrieved May 31, 2010.
U.S. Geological Survey. "United States Geological Survey Topographic Map: Oregon City, Oregon, Quadrangle". TopoQuest. Archived from the original on October 13, 2012. Retrieved June 1, 2010.
U.S. Geological Survey. "United States Geological Survey Topographic Map: Portland, Oregon, Quadrangle". TopoQuest. Archived from the original on October 13, 2012. Retrieved June 1, 2010.
Lum, Brian (August 15, 2015). "Tilikum Crossing: Set Apart by Design". TriMet. Archived from the original on September 24, 2015.
"Portland–Milwaukie Light Rail Bridge Fact Sheet/August 2013" (PDF). TriMet. August 2013. Archived from the original (PDF) on February 3, 2014. Retrieved April 19, 2014.
U.S. Geological Survey. "United States Geological Survey Topographic Map:Linnton, Oregon, Quadrangle". TopoQuest. Archived from the original on October 13, 2012. Retrieved June 5, 2010.
"St. Johns Bridge Dedication". Center for Columbia River History. Archived from the original on May 9, 2016.
Allen, Cain (2004). "The Great Flood of 1861". The Oregon History Project. Oregon Historical Society. Archived from the original on August 27, 2016. Retrieved June 17, 2016.
"Mississippi River Anatomy: How Much Water Does the Mississippi Handle?". America's Wetland Foundation. June 1, 2012. Archived from the original on May 14, 2016. Retrieved August 27, 2013.
Thomas, Mike. "Linn City, Oregon: A Victim of Nature's Wrath". Bureau of Land Management. Archived from the original on September 30, 2016.
Gregory, S.; Ashkenas, L.; Jett, S.; Wildman, R. "Flood Inundations/FEMA Floodplains: Floods and Floodplains in the Willamette River" (PDF). Willamette River Basin Atlas (2nd edition). Corvallis Forestry Research Community, Oregon State University. Archived from the original (PDF) on December 9, 2017. Retrieved June 6, 2010.
"Portland Harbor Cleanup Sites" (PDF). Oregon Department of Environmental Quality. February 17, 2009. Archived from the original (PDF) on September 30, 2011.
Van der Voo, Lee (July 2, 2007). "History of a Superfund Cleanup Bid". Portland Tribune. Archived from the original on March 4, 2016.
"Portland Harbor Superfund Site". Oregon Department of Environmental Quality. Archived from the original on December 16, 2006.
"The Willamette River: A Renaissance in the Making" (PDF). American Rivers. p. 140. Archived from the original (PDF) on April 11, 2016.
"Processes Controlling Dissolved Oxygen and pH in the Upper Willamette River Basin" (PDF). U.S. Geological Survey. 1994. Archived (PDF) from the original on December 22, 2016. Retrieved February 12, 2008.
"Willamette Valley Projects". Oregon Habitat Joint Venture. November 14, 2001. Archived from the original on March 13, 2016.
"Threatened & Endangered Species". William L. Finley National Wildlife Refuge. U.S. Fish and Wildlife Service. Archived from the original on July 15, 2015.
"Threatened & Endangered Species". Baskett Slough National Wildlife Refuge. U.S. Fish and Wildlife Service. Archived from the original on July 15, 2015.

willamette-riverkeeper.org

"Facts About the Willamette River". Willamette Riverkeeper. Archived from the original on October 31, 2016. Retrieved November 16, 2016.

willamettefalls.org

Lewis, Alan (August 2006). "Conquering the Falls: The Willamette Falls Locks". History of the Willamette Falls. Willamette Falls Heritage Foundation. Archived from the original on May 17, 2013.
Balingit, Moriah; Lednicer, Lisa Grace (May 18, 2006). "Living on Borrowed Time". The Oregonian. Archived from the original on May 21, 2013.