SW 86th Avenue Pump Station Project Construction Update: November 22, 2013
Environmental Services works to protect water quality and the environment through wastewater collection and treatment, sewer construction and maintenance, stormwater management, and stream and watershed restoration. When theSW 86th Avenue Pump Station is complete at the end of 2015, it will increase the capacity of the Fanno Basin Sewer System to ensure that the system can handle all wastewater flows during large rain storms. It will protect public health and watershed health, specifically Fanno Creek.
A project map is available at: www.portlandoregon.gov/bes/sw86th
DEVELOPMENTS OF NOTE
Construction crews continue to install the underground wet well and pump facility structure. The second of four concrete pours of the wet well structure will take place on Saturday, November 23. The concrete pour is a non-stop operation all day. Each section will be at least a month apart in order to let the concrete cure and to prepare for the next section.
Due to the groundwater and geotechnical conditions, the wet well and pump facility is being constructed using a caisson method. The caisson is a watertight structure, which will be approximately 26 feet in diameter and over 40 feet deep. The structure appears to be above ground right now, but the weight of the concrete will gradually push the structure below ground.
WHAT WE'VE HEARD FROM YOU
- In the past several days, three calls were received from trail users reporting a sewer odor coming from the Fanno Pump Station. Maintenance crews visited the site; however, no odors were detected. BES staff are continuing to look into the complaints.
ON-SITE OFFICE HOURS
Outreach staff are available on the Fanno Creek Trail atSW 86th Avenueweekly (weather dependent) to provide updates and answer questions.
- Tuesdays from 8:00 a.m. to 10:00 a.m.
- Fridays from 3:00 p.m. to 5:00 p.m.
Sign up for project updates and project information at www.portlandoregon.gov/bes/fanno, email firstname.lastname@example.org, or call Debbie Caselton at 503-823-2831. Updates will also be provided on the construction hotline at 503-823-1312.
City of Portland Environmental Services
1120 SW 5th Avenue, Room 1000, Portland, OR 97204
Phone: 503-823-2831 | Fax: 503-823-5228
Working for clean rivers
Environmental Services works to protect water quality, and the environment through wastewater collection and treatment, sewer construction and maintenance, stormwater management, and stream and watershed restoration. Learn more at www.portlandoregon.gov/bes.