Windermere CSO Reduction

Client: City of Seattle – Seattle Public Utilities

Role: Lead Roadway Engineer | CH2M

Dates: February 2011 to February 2015

Located along Sand Point Way NE (SR 513), the Windermere CSO Control Project reduces overflows from the Windermere basin from approximately 14 per year to less than one per year. The project included siting and design of a 2.05-million gallon combined sewer overflow (CSO) control facilities to meet Washington State Department of Ecology’s regulatory requirements for the Windermere Basin by 2020.  As the lead roadway engineer, Stephanie’s work involved the reconstruction of both the Sand Point Way NE and NE 65th St roadways, including the site prep, paving, grading, channelization, signing, striping and ADA design. The initial design of this project was completed in 2012 as part of a GCCM delivery model, but post construction in 2015 Stephanie also completed an ADA maximum extent feasible report to document the deficiencies in the construction of the curb ramps with regards to meeting ADA guidelines.