Traffic Mitigation and Concurrency Ordinance (UDC Chapter 30.66B SCC)
Overview and Background
Concurrency Reports
Interlocal Agreements (Reciprocal Traffic Mitigation)
Traffic Study and Mitigation Requirements Snohomish County has interlocal agreements (ILAs) with the Washington State Department of Transportation (WSDOT) and numerous cities related to mitigation of traffic impacts from new developments. The agreement with WSDOT provides for the mitigation of traffic impacts to state highways caused by traffic generated from new developments in the unincorporated county. The agreements with the cities are ‘reciprocal’ in that they provide for mitigation of impacts on city streets from county developments and visa-versa (i.e., mitigation of impacts on county roads from city developments). Below are links to the ILAs, amendments to the ILAs, and supporting forms and documents.
City and County Agreements, Forms, and Information
Generic "Offer" Forms
Applicants use these forms to make the appropriate mitigation offers to the City or the County.
Generic Offer Form for All Developments Inside Cities
Generic Offer Form for All Developments in the Unincorporated County
Agreements, Forms and Information for Each Individual City
Arlington
Bothell
Gold Bar
Granite Falls
Marysville
Mill Creek
Monroe
Mukilteo
Effective August 3, 2009
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2009 Agreement titled "Interlocal Agreement between Snohomish County and the City of Mukilteo regarding Interjurisdictional Review and Mitigation for Development Impacts on Their Respective Transportation Infrastructure"
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Stanwood
Sultan
WA State Dept. of Transportation
Traffic Study Tools and Information for Developers and Traffic Consultants
Many of the documents are in pdf format. To read these files you'll need to have Adobe Acrobat Reader installed on your computer.
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