Highline-Forum-191120 SR 518 presentation

• 2017 legislative proviso to conduct study of SR 518 corridor, updating previous corridor study (2002 - RDP) – Study funding (legislature): $500,000 – WSDOT to use a Practical Solutions approach in this study – Final report submitted by November 30, 2019. • WSDOT hired WSP America Inc. in summer 2018 to help complete study • The Port of Seattle provided addtl. funding of $400,000 for supplemental traffic/modeling work (SR 518 corridor/subarea analysis) SR 518 Study Background Cont. • Rise in population and employment resulting in higher demands on SR 518 and connecting corridors – Capacity levels already limited – Sea-Tac International Airport passenger and air cargo growth – Growth in communities on the SR 518 corridor (Burien, Des Moines, Sea- Tac, Tukwila) • No plans to modify I-5/I-405 interchange • I-405 BRT project may compete for limited ROW on SR 518 near Tukwila International Boulevard Station (TIBS) SR 518 Corridor SR 518 Study: Practical Solutions Framework Law/ Legislature Maintenance & Operations Planning Planning Scoping Programming Designing Implementing Implement Solutions Develop Funded Solutions Assign Resources Refine Solutions Assess Alternative Strategies Establish Policy Framework Manage System Assets Identify Needs SR 518 Corridor Planning Study Stakeholder Committee • Burien, Des Moines, SeaTac, Tukwila • King County Metro • Port of Seattle • Puget Sound Regional Council (PSRC) • Sound Transit • Tribes • WSDOT HQ • WSDOT NW Region Communications and Outreach: Web Survey _______________________ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _…
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