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Fairview Avenue North Bridge Replacement

Febuary 4, 2016

Fairview Avenue N Bridge Replacement Project: SEPA Determination of Non-Significance

SDOT is required to consider the environmental consequences of proposed projects under the Washington State Environmental Policy Act (SEPA). After review of a completed SEPA environmental checklist and other information on file with SDOT, SDOT has determined that the Fairview Avenue N Bridge Replacement Project will not have a probable significant adverse impact on the environment and that an environmental impact statement (EIS) is not required.  SDOT issued its Determination of Non-Significance (DNS) on Monday, February 1, 2016. The SEPA checklist includes a summary of the project's impacts on water quality, air quality, plants, animals, hazardous materials, noise, land use, light, recreation, cultural resources, parking, and other aspects of the local environment.

The public comment period on the DNS and SEPA Checklist began on Monday, February 1, 2016, and concludes on February 16, 2016. Comments are due by 5 PM on February 16. The appeal period on the DNS ends on Tuesday, February 23, 2016. Any appeals must be filed by 5 PM on February 23, 2016. Please refer to the DNS for more information on providing comments and submitting appeals.

Please contact MariLyn Yim, Project Manager, at 206-684-3190 or  with any questions or concerns.

Project overview

The Seattle Department of Transportation (SDOT) is committed to maintaining safety for all users of Fairview Ave N. The current bridge, built more than 65 years ago, needs to be replaced. The timber-supported bridge is structurally deficient and seismically vulnerable. Located on the southeast shore of Lake Union near the 1200 block of Fairview Ave N in Seattle, the bridge is next to the historic Lake Union Steam Plant building.

Existing conditions

The Fairview Ave N Bridge is in need of replacement. The timber piles on the western half of the bridge that hold the roadway up are decaying and the concrete girders on the eastern half of the bridge are cracked.

The bridge was not built to current seismic standards and has a limited load capacity for oversized vehicles.

Cracked girder on the eastern side of the bridge

Cracked concrete on the eastern side of the bridge

Decaying timber piles on the western side of the bridge

Fairview bridge

Building a better bridge

The new bridge is designed to be safer for all users as well as provide the infrastructure needed for potential transit expansion in the future. Click here for more information on the new bridge design.

Project schedule

*The project will comply with all necessary environmental permitting and associated schedules
**Construction start date pending permit approvals

Project Budget and Funding

The total project estimate is $42 million and the project is fully funded in three ways: Bridging the Gap, a nine-year levy for transportation maintenance and improvement, and federal funding through the Bridge Replacement Advisory Committee (BRAC), and funds from the recently passed Move Seattle levy.


Please contact MariLyn Yim, Project Manager, at 206-684-3190 or  with any questions or concerns.


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