{{Use American English|date=February 2025}} {{Infobox river | name = Nehalem River | name_native = | name_native_lang = | name_other = | name_etymology = Salish for "place where people live"<ref>{{cite book| last = Loy| first = William G., ed. |author2=Allan, Stuart |author3=Buckley, Aileen R. |author4=Meacham, James E.| title = Atlas of Oregon, 2nd edition, revised| publisher = University of Oregon Press| year = 2001| location = Eugene, Oregon| pages = 24| isbn = 0-87114-101-9}}</ref> <!---------------------- IMAGE & MAP --> | image = USACE Nehalem Bay Oregon.jpg | image_caption = Nehalem Bay at the mouth of the Nehalem River on the Pacific Ocean | image_size = 300 | map = | map_size = 300 | map_caption = | pushpin_map = USA Oregon | pushpin_map_size = 300 | pushpin_map_caption= Location of the mouth of the Nehalem River in Oregon <!---------------------- LOCATION --> | subdivision_type1 = Country | subdivision_name1 = United States | subdivision_type2 = State | subdivision_name2 = Oregon | subdivision_type3 = | subdivision_name3 = | subdivision_type4 = County | subdivision_name4 = Washington, Columbia, Clatsop, Tillamook | subdivision_type5 = | subdivision_name5 = <!---------------------- PHYSICAL CHARACTERISTICS --> | length = {{convert|118.5|mi|km|abbr=on}}<ref name="Johnson">{{cite web | last = Johnson | first = Jill |editor=Maser, Joseph | title = Nehalem River Watershed Assessment 1.0 Introduction | publisher = Environmental Sciences and Resources Department, Portland State University | url = http://web.pdx.edu/~maserj/project/project1/1.htm| accessdate = January 17, 2009}}</ref> | width_min = | width_avg = | width_max = | depth_min = | depth_avg = | depth_max = | discharge1_location= near Foss, {{convert|13.5|mi|km}} from mouth<ref name="gauge">{{cite web| publisher = United States Geological Survey | url = https://wdr.water.usgs.gov/wy2007/pdfs/14301000.2007.pdf | title = Water-data report 2007: 14301000 Nehalem River near Foss, OR |accessdate = January 17, 2009}}</ref> | discharge1_min = {{convert|34|cuft/s|m3/s|abbr=on}} | discharge1_avg = {{convert|2653|cuft/s|m3/s|abbr=on}}<ref name="gauge">{{cite web| publisher = United States Geological Survey | url = https://wdr.water.usgs.gov/wy2007/pdfs/14301000.2007.pdf | title = Water-data report 2007: 14301000 Nehalem River near Foss, OR |accessdate = January 17, 2009}}</ref> | discharge1_max = {{convert|70300|cuft/s|m3/s|abbr=on}} <!---------------------- BASIN FEATURES --> | source1 = Northern Oregon Coast Range | source1_location = Giveout Mountain, Tillamook County, Oregon | source1_coordinates= {{coord|45|43|53|N|123|25|26|W|display=inline}}<ref name="gnis"/> | source1_elevation = {{convert|2424|ft|abbr=on}}<ref name="source">Source elevation derived from Google Earth search using GNIS source coordinates.</ref> | mouth = Nehalem Bay | mouth_location = near Nehalem, Tillamook County, Oregon | mouth_coordinates = {{coord|45|39|29|N|123|56|04|W|display=inline,title}}<ref name="gnis">{{cite web | work = Geographic Names Information System| publisher = United States Geological Survey | date = November 28, 1980 | url = https://geonames.usgs.gov/pls/gnispublic/f?p=gnispq:3:::NO::P3_FID:1124640| title = Nehalem River | accessdate = January 9, 2009}}</ref> | mouth_elevation = {{convert|0|ft|abbr=on}}<ref name="gnis"/> | progression = | river_system = | basin_size = {{convert|855|sqmi|abbr=on}}<ref name ="Johnson"/> | tributaries_left = | tributaries_right = | custom_label = | custom_data = | extra = }}
The '''Nehalem River''' is a river on the Pacific coast of northwest Oregon in the United States, approximately {{convert|119|mi|km}} long. It drains part of the Northern Oregon Coast Range northwest of Portland, originating on the east side of the mountains and flowing in a loop around the north end of the range near the mouth of the Columbia River. Its watershed of {{convert|855|sqmi|km2}} includes an important timber-producing region of Oregon that was the site of the Tillamook Burn. In its upper reaches it flows through a long narrow valley of small mountain communities but is unpopulated along most of its lower reaches inland from the coast.
It rises in the northeast corner of Tillamook County, in the Tillamook State Forest. It initially flows northeast, across the northwest corner of Washington County and into western Columbia County, past Vernonia where it receives Rock Creek, it hooks to the northwest and west into Clatsop County, then flows southwest back into northern Tillamook County. It enters Nehalem Bay on the Pacific in an estuary at Nehalem, about {{convert|70|mi|km}} west-northwest of Portland. Near its mouth on the Pacific, the river passes under U.S. Route 101.
It receives the Salmonberry River from the east in northern Tillamook County. It also receives the North Fork Nehalem River {{convert|25|mi|km}} from the north about {{convert|2|mi|km}} northwest of Nehalem, just before entering Nehalem Bay.
In 2007, a major storm caused the Salmonberry Bridge (located at {{coord | 45.7499 | -123.6528 | type:landmark_region:US-OR_source:googlemapssatellite_dim:60 | name=Salmonberry Bridge}}) to collapse. The bridge was rebuilt and opened to traffic on May 14, 2012.<ref>{{cite web | url = http://www.tillamookheadlightherald.com/news/article_e80ae1fc-9ea2-11e1-840e-0019bb2963f4.html | title = The Salmonberry Bridge Reopens | work = Tillamook Headlight-Herald | date = 15 May 2012 | quote = At long last The Salmonberry Bridge on Foss Road at m.p. 13 has been rebuilt and opened to traffic May 14. The bridge washed out in the 2007 storm. | accessdate = 27 January 2014 }}</ref>
Nehalem is also used as the codename for Intel's first-generation line of Core processors.<ref>{{Citation |title=Intel's new faster chip right on AMD's heels |first=King |last=Ian |date=2008-10-20 |publisher=The Seattle Times |url=http://seattletimes.nwsource.com/html/businesstechnology/2008125540_intel20.html }}</ref><ref>{{Citation |title=IAMD vs Intel: The future of desktop CPUs |first=George |last=Jones |date=2008-02-09 |publisher=PC Advisor UK |url=http://www.pcadvisor.co.uk/news/index.cfm?NewsID=12061&pn=3 }}</ref>
==See also== * List of rivers of Oregon * List of longest streams of Oregon
==References== {{reflist}}
==External links== {{Commons category|Nehalem River}} * [http://web.pdx.edu/~maserj/project/project1/acrobat/1intro.pdf Nehalem River Watershed Assessment] (PDF) * [http://nehalemvalleyhistory.org/ Nehalem Valley Historical Society]
{{authority control}}
Category:Oregon Coast Category:Rivers of Oregon Category:Rivers of Washington County, Oregon Category:Rivers of Clatsop County, Oregon Category:Rivers of Tillamook County, Oregon Category:Rivers of Columbia County, Oregon