Since 2001, the department has undertaken an extensive evaluation of multiple options to replace the Alaskan Way viaduct, including an initial evaluation of seventy-six conceptual alternatives and a more detailed analysis of five alternatives in 2004. In addition to a substantial technical review, the department has also undertaken considerable public outreach, which included consultation with a stakeholder advisory committee that met sixteen times over a thirteen-month period.
Therefore, it is the conclusion of the legislature that time is of the essence, and that Washington state cannot wait for a disaster to make it fully appreciate the urgency of the need to replace this vulnerable structure. The state shall take the necessary steps to expedite the environmental review and design processes to replace the Alaskan Way viaduct with a deep bore tunnel under First Avenue from the vicinity of the sports stadiums in Seattle to Aurora Avenue north of the Battery Street tunnel. The tunnel must include four general purpose lanes in a stacked formation.
RCW 47.01.402
Alaskan Way viaduct replacement project-Deep bore tunnel option-Traffic and revenue study- 2009 c 458 : "The department of transportation must prepare a traffic and revenue study for a state route number 99 deep bore tunnel for the purpose of determining the facility's potential to generate toll revenue. The department shall regularly report to the transportation commission regarding the progress of the study for the purpose of guiding the commission's toll setting on the facility. The study must include the following information:
(1) An analysis of the potential diversion from state route number 99 to other parts of the transportation system resulting from tolls on the facility;
(2) An analysis of potential mitigation measures to offset or reduce diversion from state route number 99;
(3) A summary of the amount of revenue generated from tolling the deep bore tunnel; and
(4) An analysis of the impact of tolls on the performance of the facility.
The department must provide the results of the study to the governor and the legislature by January 2010." [2009 c 458 s 2.]
Effective date- 2009 c 458 : "This act is necessary for the immediate preservation of the public peace, health, or safety, or support of the state government and its existing public institutions, and takes effect July 1, 2009." [2009 c 458 s 3.]