Genesee Basins
Water quality along Lake Washington Blvd. in southeast Seattle will be improved by the Genesee Basins project.
The Genesee Basins projects combine additional storage and transmission pipeline to control about 600,000 gallons, reducing overflows into Lake Washington. When finished in 2015, the Genesee projects will bring three combined sewer basins into control.
Because of topography and other factors, Green Stormwater Infrastructure (GSI) opportunities are limited in the Genesee Basins. Opportunities may exist for small-scale projects; these are being evaluated.
Meetings
If you live, work or visit the Genesee area, we’re looking forward to getting your input.
- February 7, 2011, Friends of Seattle's Olmsted Parks Briefing
- January 27, 2011, Seattle Parks Board Meeting -presentation
- January 20, 2011, 6-8 p.m. Public Meeting at Lakewood/Seward Park Community Club - notice, meeting notes, presentation
- November 9, 2010 Public Meeting at Lakewood Seward Park Community Club - notice, presentation, meeting summary
- November 1, 2010 Friends of Seattle's Olmsted Parks Briefing
- October 12, 2010 Neighborhood Meeting at Lakewood Seward Park Community Club - notice
- September 21, 2010 Public Meeting at Rainier Valley Cultural Center - notice, presentation
- September 14, 2010 Lakewood/Seward Park Community Association Briefing - notice, presentation
- August 26, 2010 Genesee Park Neighbors Association Briefing - notice, presentation
- August 21, 2010 Genesee Poster Session - notice, presentation
- June 23, 2010 Southeast District Council Meeting - presentation
Project Updates
SPU analyzed multiple alternatives to reduce Combined Sewer Overflows (CSOs) in three Genesee basins in order to meet the regulatory requirement. The preferred alternatives identified in the SEPA environmental checklist and the Engineering Report to the Washington State Department of Ecology are:
- Underground storage in the parking lot along Lake Washington Blvd. between 48th Avenue South and 49th Avenue south (49th Avenue South Parking Lot
- Underground storage in the parking lot along Lake Washington Blvd. south of Lakewood Moorage and at the end of 53rd Avenue South (53rd Avenue South Parking Lot)
SPU will be presenting these preferred alternatives to the City Council for approval in summer or fall 2011. SPU will also continue developing information for design of these projects. Due to the nature of this work, you may notice SPU and contractors conducting field work around the area. The latest project notices will be provided here.
Project Schedule
The State Department of Ecology has set the following schedule for Genesee CSO Reduction Projects:
Genesee CSO Basin 43 Project
- Complete and submit draft Engineering Report - December 31, 2010
- Complete and submit for approval a Final Engineering Report - May 31, 2011
- Complete and submit draft plans and specifications - January 31, 2013
- Complete and submit for review and approval final plans and specifications - June 30, 2013
- Begin construction - August 31, 2013
- Complete construction - October 31, 2015
Genesee CSO Basins 40 and 41 Project
- Complete and submit draft Engineering Report - December 31, 2010
- Complete and submit for approval a Final Engineering Report - May 31, 2012
- Complete and submit draft plans and specifications - January 31, 2014
- Complete and submit for review and approval final plans and specifications - June 30, 2014
- Begin construction - August 31, 2014
- Complete construction - October 31, 2015
Final Reports (all documents are pdf)
- Engineering Report
- Basis of Design Report
- Determination of Non-Significance (DNS)
- SEPA Checklist
- Genesee & Henderson - Initial Estimation of Overflow Control Volumes
- Genesee & Henderson - Preliminary Geotechnical Evaluation
- Genesee - Flow Monitoring Plan
- Genesee - Flow Monitoring Report
- Genesee - Modeling Plan
- Genesee - Alternatives Modeling Report
- Genesee - Hydrologic and Hydraulic Report
Questions?
Contact the Genesee Basins project team.
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