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North Portland Harbor
Railroad bridge over the channel
Location of the mouth of North Portland Harbor in Oregon
Location
Country	United States
State	Oregon
County, City	Multnomah, Portland
Physical characteristics
Source	Columbia River
• location	about 108 miles (174 km) from the Columbia mouth
Mouth	Columbia River
• location	about 103 miles (166 km) from the Columbia mouth
• coordinates	45°37′48″N 122°43′54″W / 45.63000°N 122.73167°W / 45.63000; -122.73167
• elevation	10 ft (3.0 m)
Length	5 mi (8.0 km)

The North Portland Harbor is an Oregon waterway or channel in Multnomah County, specifically in Portland. An anabranch, about 5 miles (8 km) long, of the Columbia River, it separates Hayden and Tomahawk islands from the mainland. Flowing generally northwest, the channel rejoins the main stem slightly upstream of Kelley Point Park and the mouth of the Willamette River.

The Interstate Bridge carries Interstate 5 (I-5) over the channel, and farther downstream the Oregon Slough Railroad Bridge carries rail traffic. The BNSF Railway crosses North Portland Harbor over the rail bridge.

Terminal 6 of the Port of Portland lies along the mainland shore of the channel. Northeast Marine Drive runs roughly parallel to the channel for much of its length.

The official name registered with the United States Board on Geographic Names is North Portland Harbor, although historically other names have been applied. These include Oregon Slough and Hayden Slough.

See also

• List of rivers of Oregon

References

1. ^ "North Portland Harbor". Geographic Names Information System. United States Geological Survey (USGS). November 28, 1980. Retrieved November 23, 2015.
2. ^ "United States Topographic Map". United States Geological Survey. Retrieved November 23, 2015 – via ACME Mapper.
3. Topinka, Lynn (2008). "North Portland Harbor, Oregon". Lynn Topinka. Archived from the original on July 5, 2008. Retrieved September 20, 2014.
4. "Portland's Local Rail Connections" (PDF). Port of Portland. April 21, 2014. Archived from the original (PDF) on August 19, 2014. Retrieved November 23, 2015.
5. "Preliminary Examination of Hayden Slough, Oreg". House Documents, Volume 19. Washington, D.C.: U.S. Government Printing Office. January 24, 1918. p. 76. Retrieved November 23, 2015 – via Google Books.

External links

• Media related to North Portland Harbor at Wikimedia Commons

v t e Rivers and streams of Portland, Oregon
Major	Columbia River Willamette River
Minor	Balch Creek Columbia Slough Crystal Springs Creek Fanno Creek Johnson Creek Multnomah Channel North Portland Harbor Stephens Creek Tanner Creek Tryon Creek
Drinking water	Bull Run River

This Multnomah County, Oregon state location article is a stub. You can help Misplaced Pages by expanding it.

• v
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• Bodies of water of Oregon
• Hayden Island, Portland, Oregon
• Kenton, Portland, Oregon
• Multnomah County, Oregon
• North Portland, Oregon
• Northeast Portland, Oregon
• Water transportation in Oregon
• Waterways in the United States
• Multnomah County, Oregon, geography stubs