Lidding I-5

An aerial view of the proposed lid area of Interstate 5 connecting Wallingford and the University District in Seattle. (Credit: Northwest Urbanist)

UW Students Are Investigating a Proposed U District Freeway Lid

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Complete the survey by May 17th and share your feedback on a I-5 freeway lid proposed between Wallingford and the University District. It may seem...
Transrapid series 09 vehicle at the Emsland Test Facility, northern Germany. (Credit: Állatka / Wikimedia Commons)

I-5 Lid Could Support Downtown Seattle High-Speed Rail Station

Earlier this year the city published a feasibility study to put a lid above I-5 to reconnect Downtown and First Hill, two neighborhoods divided...

Lidding I-5 Declared “Technically Feasible” by Consultant Team

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An important milestone in the Lid I-5 technical feasibility study has been reached. Data collected by engineering firm WSP indicates that it is structurally...

520 Portage Bay Bridge and Roanoke Lid Design Process Is Advancing

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The Washington State Department of Transportation (WSDOT) is seeking community feedback through its SR-520 Online Open House. A series of community workshops will also...

Integrate I-5: Does Seattle Need Another Deep Bore Tunnel?

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Less than a year after the opening of the SR-99 tunnel, tunnel mania seems to be spreading across Seattle. An unfunded billion dollar price...

What Seattle Can Learn from Philadelphia’s Freeway Lid Project

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A visit from a Philadelphia planner with expertise on freeway lids offers insights for how to reconnect Seattle. Last week the Downtown Seattle Association (DSA)...

Sunday Video: Lid I-5—Big Ideas Make A Difference

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https://youtu.be/dgJYWleJC84 In this short video, several public space experts and community leaders explain why the campaign to lid I-5 is an important opportunity for Seattle...

Seattle Releases Request for Proposals for Lid I-5 Feasibility Study

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The City of Seattle is seeking a team of "highly experienced" consultants to undertake a year-long feasibility study.  2018 has been a big year for...