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City Files Motion for Injunction Against WSDOT and sound Transit

May 16, 2017 - At the close of business on Monday, May 15, the City filed a motion for preliminary injunction in King County Superior Court, requesting that Judge Beth Andrus enjoin the Washington State Department of Transportation (WSDOT) from closing the I-90 center roadway and Sound Transit from commencing light rail construction there. 

This action is the next step in the City's February 2017 breach of contract lawsuit against WSDOT and Sound Transit regarding commitments made under a 1976 Agreement, and subsequent 2004 Amendment, to mitigate any impacts to the mobility of Mercer Island residents due to rail construction and operations.

The City's motion asks the Court to ensure the agencies meaningfully consult with the City in order to reasonably and in good faith seek concurrence on loss of mobility and mitigation measures as required by the agreements; the City requests that this process be overseen by a Court-appointed Special Master.

In order to preserve the time necessary for adequate and effective Court-supervised consultation, the motion requests the Court to delay the June 3 closure of the center roadway, and delay the transition of newly-painted "R8A" vehicle lanes across the I-90 floating bridge to HOV-only operation.

To learn more about recent negotiations and litigation history, visit


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