King Street odor control
Completed – Fall 2009
Construction of the King Street Odor Control Facility began Spring 2008 and was completed in Fall 2009. The new odor control facility reduces corrosive, odor-causing gases in the Elliott Bay Interceptor, a major wastewater conveyance pipe beneath Occidental Ave and Second Ave S in Seattle, and addresses a long-standing odor nuisance for the public.
The bulk of the King Street Odor Control Facility is located underground, only an air vent stack and a small electrical building are visible above ground. The above ground structures were designed to compliment the design features of the near by Weller St Bridge (located south of site). The King Street Station is located directly north of the site.
King Street Odor Control Facility
View more photos on our Flickr site .
24-hour emergency and odor reporting:
Contact West Point Treatment Plant at 206-263-3801.
King County worked with the following organizations throughout the design and construction process:
- City of Seattle
- Pioneer Square Preservation Board
- Washington State Department of Transportation
- Washington State Public Stadium Authority
How odor is controlled
The new odor control facility is equipped with strong fans and odor control equipment that pulls foul smelling gases out of the existing sewer pipe and transports them to an odor “scrubber”. Gases in the “scrubber” then pass through a carbon filter which removes odor causing compounds. The compounds are absorbed by the carbon and the cleaned air is released to the environment.
You can download and view documents (PDF files) using a PDF Reader.
- Final stages of major above ground construction activities – May 5, 2009
- Shoring removal south of King St Station – March 10, 2009
- S King St repaved tomorrow – Feb. 13, 2009
No access to parking spaces along southern border of King St Center for most of the day
- Weller St Bridge access through Qwest Field parking lot rerouted, Feb. 5, 2009
- S King St repaving starts the night of January 19, Jan. 15, 2009
- Work on S King St begins December 1, Nov. 20, 2008 (193KB)
- Night work begins Thursday, Sept. 18; foul air line installation along S King St begins the week of Sept. 22., Sept. 16, 2008 (295KB)
- Excavation complete, foundation and base work continue, Aug. 22, 2008 (140KB)
- Excavation and foundation work continue, July 29, 2008 (135KB)
- Shoring installation south of King St Station complete, July 9, 2008 (125KB)
- Shoring installation south of King St Station begins June 16, June 12, 2008 (127KB)
- Project update, June 4, 2008 (143KB)
- Project update, May 28, 2008 (74KB)
- Project update, April 7, 2008 (45KB)