West Side CSO Tunnel
Encyclopedia
The West Side Combined Sewer Overflow Tunnel is a tunnel under construction in Portland, Oregon
, United States. This project is a part of the Willamette River
combined sewer overflow expansion program. It is underway and scheduled to be complete in 2011.
Portland, Oregon
Portland is a city located in the Pacific Northwest, near the confluence of the Willamette and Columbia rivers in the U.S. state of Oregon. As of the 2010 Census, it had a population of 583,776, making it the 29th most populous city in the United States...
, United States. This project is a part of the Willamette River
Willamette River
The Willamette River is a major tributary of the Columbia River, accounting for 12 to 15 percent of the Columbia's flow. The Willamette's main stem is long, lying entirely in northwestern Oregon in the United States...
combined sewer overflow expansion program. It is underway and scheduled to be complete in 2011.