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East Marginal Way Corridor Improvement Program, Seattle Department of Transportation Multimodal Corridor Program


As part of the Multimodal Corridor Public Communications Team and sub-consultant to Stepherson & Associates (S&A) Communications, GWFA is responsible for development and implementation of a public involvement plan using a variety of outreach methods to engage with diverse stakeholders (e.g., corridor-specific mailer, email communications, facts sheets, web site, surveys, presentations and briefings, open houses, and other types of meetings). The project began in 2015 with the examination of existing conditions and community input. A variety of methods engaged stakeholders, such as briefings, a public workshop, and an online survey. GWFA led the planning and logistics for the public open house/workshop, and helped promote the online survey. In 2017, SDOT and its consultants are using public input, data collection, and technical analysis to evaluate different options for the future of the corridor. In early 2017, GWFA planned and implemented a door-to-door outreach campaign to inform and survey businesses in the central and south sections of the corridor to gather input on preliminary design concepts for improving the corridor.

Project Overview:

As Seattle grows, improvements to freight mobility are essential to promote regional and international economic competitiveness. East Marginal Way is a major freight corridor that provides access to the Port of Seattle terminals, rail yards, industrial businesses and the regional highway system, and between local Manufacturing and Industrial Councils (MIC’s). It is also a designated Heavy Haul Route, critical last-mile connector and vital route for over-sized trucks or those carrying flammable cargo.  In addition, the corridor provides a major connection for people who bike between the West Seattle Bridge Trail, downtown, and the SODO neighborhood.

This project will:

  • Improve safety and reliability in the movement of people and goods
  • Support freight loads by rebuilding the roadway
  • Promote efficiency through signal modifications and intelligent transportation systems (ITS)
  • Improve safety by better separating non-motorized modes from freight traffic

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